/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 22:22:41,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 22:22:41,431 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 22:22:41,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 22:22:41,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 22:22:41,507 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 22:22:41,509 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 22:22:41,512 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 22:22:41,514 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 22:22:41,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 22:22:41,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 22:22:41,520 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 22:22:41,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 22:22:41,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 22:22:41,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 22:22:41,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 22:22:41,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 22:22:41,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 22:22:41,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 22:22:41,533 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 22:22:41,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 22:22:41,535 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 22:22:41,536 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 22:22:41,537 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 22:22:41,542 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-16 22:22:41,543 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-16 22:22:41,543 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-16 22:22:41,544 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-16 22:22:41,544 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-16 22:22:41,545 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-16 22:22:41,545 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-16 22:22:41,546 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-16 22:22:41,547 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-16 22:22:41,548 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-16 22:22:41,549 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-16 22:22:41,549 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-16 22:22:41,549 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-16 22:22:41,550 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-16 22:22:41,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 22:22:41,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 22:22:41,551 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 22:22:41,552 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf [2022-03-16 22:22:41,581 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 22:22:41,581 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 22:22:41,582 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 22:22:41,582 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 22:22:41,582 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 22:22:41,582 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 22:22:41,583 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 22:22:41,583 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 22:22:41,583 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 22:22:41,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 22:22:41,584 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 22:22:41,584 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 22:22:41,584 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 22:22:41,584 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 22:22:41,585 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 22:22:41,585 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 22:22:41,585 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 22:22:41,585 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 22:22:41,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 22:22:41,585 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 22:22:41,585 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 22:22:41,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 22:22:41,585 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 22:22:41,586 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 22:22:41,586 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 22:22:41,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 22:22:41,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 22:22:41,586 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 22:22:41,586 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 22:22:41,586 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 22:22:41,586 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 22:22:41,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 22:22:41,587 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 22:22:41,587 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 22:22:41,587 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 22:22:41,587 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-16 22:22:41,587 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 22:22:41,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 22:22:41,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 22:22:41,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 22:22:41,804 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-16 22:22:41,805 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-16 22:22:41,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl [2022-03-16 22:22:41,806 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl' [2022-03-16 22:22:41,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 22:22:41,825 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-16 22:22:41,826 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 22:22:41,826 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 22:22:41,826 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 22:22:41,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:22:41" (1/1) ... [2022-03-16 22:22:41,850 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:22:41" (1/1) ... [2022-03-16 22:22:41,860 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-16 22:22:41,861 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 22:22:41,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 22:22:41,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 22:22:41,863 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 22:22:41,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:22:41" (1/1) ... [2022-03-16 22:22:41,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:22:41" (1/1) ... [2022-03-16 22:22:41,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:22:41" (1/1) ... [2022-03-16 22:22:41,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:22:41" (1/1) ... [2022-03-16 22:22:41,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:22:41" (1/1) ... [2022-03-16 22:22:41,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:22:41" (1/1) ... [2022-03-16 22:22:41,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:22:41" (1/1) ... [2022-03-16 22:22:41,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 22:22:41,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 22:22:41,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 22:22:41,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 22:22:41,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:22:41" (1/1) ... [2022-03-16 22:22:41,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 22:22:41,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:22:41,913 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) [2022-03-16 22:22:41,927 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 [2022-03-16 22:22:41,947 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-16 22:22:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 22:22:41,947 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 22:22:41,947 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-16 22:22:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 22:22:41,947 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 22:22:41,947 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-16 22:22:41,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 22:22:41,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 22:22:41,948 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-16 22:22:41,987 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 22:22:41,989 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 22:22:42,048 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 22:22:42,060 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 22:22:42,060 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 22:22:42,062 INFO L202 PluginConnector]: Adding new model nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 10:22:42 BoogieIcfgContainer [2022-03-16 22:22:42,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 22:22:42,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 22:22:42,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 22:22:42,066 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 22:22:42,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:22:41" (1/2) ... [2022-03-16 22:22:42,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fed76ff and model type nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 10:22:42, skipping insertion in model container [2022-03-16 22:22:42,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 10:22:42" (2/2) ... [2022-03-16 22:22:42,069 INFO L111 eAbstractionObserver]: Analyzing ICFG nonblocking-cntr-alt.wvr.bpl [2022-03-16 22:22:42,073 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 22:22:42,073 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 22:22:42,073 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 22:22:42,073 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 22:22:42,098 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-16 22:22:42,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 22:22:42,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:22:42,141 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) [2022-03-16 22:22:42,142 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 [2022-03-16 22:22:42,164 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 22:22:42,170 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-16 22:22:42,170 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-16 22:22:42,319 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 125 transitions and produced 113 states. [2022-03-16 22:22:42,321 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 22:22:42,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:22:42,325 INFO L85 PathProgramCache]: Analyzing trace with hash 472924029, now seen corresponding path program 1 times [2022-03-16 22:22:42,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:22:42,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860177689] [2022-03-16 22:22:42,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:22:42,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:22:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:22:43,656 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 55 proven. 123 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-16 22:22:43,656 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:22:43,657 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860177689] [2022-03-16 22:22:43,657 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860177689] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:22:43,657 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792452836] [2022-03-16 22:22:43,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:22:43,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:22:43,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:22:43,664 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) [2022-03-16 22:22:43,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-16 22:22:43,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:22:43,744 WARN L261 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 81 conjunts are in the unsatisfiable core [2022-03-16 22:22:43,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:22:45,219 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:22:45,220 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:22:46,749 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 6 proven. 174 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:22:46,750 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792452836] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:22:46,750 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:22:46,750 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 26, 24] total 67 [2022-03-16 22:22:46,752 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340724368] [2022-03-16 22:22:46,753 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:22:46,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-03-16 22:22:46,757 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:22:46,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-03-16 22:22:46,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=674, Invalid=3882, Unknown=0, NotChecked=0, Total=4556 [2022-03-16 22:22:46,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:22:46,784 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:22:46,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 2.088235294117647) internal successors, (142), 67 states have internal predecessors, (142), 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) [2022-03-16 22:22:46,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:22:53,204 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 494 transitions and produced 418 states. [2022-03-16 22:22:53,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-03-16 22:22:53,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-16 22:22:53,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-16 22:22:53,433 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 22:22:53,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:22:53,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1786839363, now seen corresponding path program 2 times [2022-03-16 22:22:53,434 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:22:53,434 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651782917] [2022-03-16 22:22:53,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:22:53,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:22:53,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:22:54,103 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 324 proven. 81 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-16 22:22:54,103 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:22:54,103 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651782917] [2022-03-16 22:22:54,103 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651782917] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:22:54,104 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998787962] [2022-03-16 22:22:54,104 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 22:22:54,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:22:54,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:22:54,105 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) [2022-03-16 22:22:54,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-16 22:22:54,153 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 22:22:54,154 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:22:54,156 WARN L261 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 101 conjunts are in the unsatisfiable core [2022-03-16 22:22:54,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:22:55,647 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 0 proven. 409 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:22:55,647 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:22:57,091 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 0 proven. 409 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:22:57,092 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998787962] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:22:57,092 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:22:57,092 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 31, 29] total 80 [2022-03-16 22:22:57,092 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835290009] [2022-03-16 22:22:57,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:22:57,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2022-03-16 22:22:57,094 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:22:57,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2022-03-16 22:22:57,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1556, Invalid=4924, Unknown=0, NotChecked=0, Total=6480 [2022-03-16 22:22:57,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:22:57,097 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:22:57,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 81 states have (on average 2.0864197530864197) internal successors, (169), 80 states have internal predecessors, (169), 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) [2022-03-16 22:22:57,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-03-16 22:22:57,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:23:04,288 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3180 transitions and produced 2517 states. [2022-03-16 22:23:04,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-03-16 22:23:04,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-03-16 22:23:04,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-16 22:23:04,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:23:04,489 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 22:23:04,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:23:04,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1448430487, now seen corresponding path program 3 times [2022-03-16 22:23:04,490 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:23:04,490 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270353872] [2022-03-16 22:23:04,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:23:04,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:23:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:23:05,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1241 backedges. 844 proven. 383 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-03-16 22:23:05,370 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:23:05,370 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270353872] [2022-03-16 22:23:05,371 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270353872] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:23:05,371 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453202300] [2022-03-16 22:23:05,371 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 22:23:05,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:23:05,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:23:05,372 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) [2022-03-16 22:23:05,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-16 22:23:05,434 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 36 check-sat command(s) [2022-03-16 22:23:05,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:23:05,437 WARN L261 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 165 conjunts are in the unsatisfiable core [2022-03-16 22:23:05,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:23:07,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1241 backedges. 0 proven. 1241 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:23:07,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:23:09,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1241 backedges. 12 proven. 1221 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-16 22:23:09,620 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453202300] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:23:09,620 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:23:09,621 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 47, 39] total 115 [2022-03-16 22:23:09,621 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121482882] [2022-03-16 22:23:09,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:23:09,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 116 states [2022-03-16 22:23:09,622 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:23:09,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2022-03-16 22:23:09,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3438, Invalid=9902, Unknown=0, NotChecked=0, Total=13340 [2022-03-16 22:23:09,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:23:09,626 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:23:09,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 116 states, 116 states have (on average 2.163793103448276) internal successors, (251), 115 states have internal predecessors, (251), 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) [2022-03-16 22:23:09,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2022-03-16 22:23:09,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 100 states. [2022-03-16 22:23:09,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:23:22,088 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4895 transitions and produced 3845 states. [2022-03-16 22:23:22,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-03-16 22:23:22,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-03-16 22:23:22,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 230 states. [2022-03-16 22:23:22,105 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-16 22:23:22,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:23:22,290 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 22:23:22,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:23:22,290 INFO L85 PathProgramCache]: Analyzing trace with hash 2696207, now seen corresponding path program 4 times [2022-03-16 22:23:22,290 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:23:22,290 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651329570] [2022-03-16 22:23:22,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:23:22,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:23:22,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:23:23,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1616 backedges. 1372 proven. 236 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-16 22:23:23,407 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:23:23,407 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651329570] [2022-03-16 22:23:23,408 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651329570] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:23:23,408 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33962346] [2022-03-16 22:23:23,408 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 22:23:23,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:23:23,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:23:23,409 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) [2022-03-16 22:23:23,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-16 22:23:23,461 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 22:23:23,461 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:23:23,467 WARN L261 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 185 conjunts are in the unsatisfiable core [2022-03-16 22:23:23,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:23:26,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1616 backedges. 0 proven. 1616 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:23:26,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:23:28,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1616 backedges. 0 proven. 1614 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-16 22:23:28,675 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33962346] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:23:28,675 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:23:28,675 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 52, 47] total 137 [2022-03-16 22:23:28,675 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619133476] [2022-03-16 22:23:28,675 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:23:28,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 138 states [2022-03-16 22:23:28,676 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:23:28,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 138 interpolants. [2022-03-16 22:23:28,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5399, Invalid=13507, Unknown=0, NotChecked=0, Total=18906 [2022-03-16 22:23:28,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:23:28,683 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:23:28,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 138 states, 138 states have (on average 2.108695652173913) internal successors, (291), 137 states have internal predecessors, (291), 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) [2022-03-16 22:23:28,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2022-03-16 22:23:28,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 100 states. [2022-03-16 22:23:28,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 230 states. [2022-03-16 22:23:28,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:23:44,069 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 7015 transitions and produced 5495 states. [2022-03-16 22:23:44,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-16 22:23:44,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-03-16 22:23:44,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 230 states. [2022-03-16 22:23:44,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 239 states. [2022-03-16 22:23:44,087 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-16 22:23:44,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:23:44,275 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 22:23:44,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:23:44,276 INFO L85 PathProgramCache]: Analyzing trace with hash 88921659, now seen corresponding path program 5 times [2022-03-16 22:23:44,276 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:23:44,276 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086841117] [2022-03-16 22:23:44,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:23:44,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:23:44,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:23:45,742 INFO L134 CoverageAnalysis]: Checked inductivity of 2225 backedges. 2028 proven. 191 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-16 22:23:45,742 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:23:45,742 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086841117] [2022-03-16 22:23:45,742 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086841117] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:23:45,742 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917865369] [2022-03-16 22:23:45,742 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 22:23:45,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:23:45,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:23:45,745 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) [2022-03-16 22:23:45,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-16 22:23:45,814 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 48 check-sat command(s) [2022-03-16 22:23:45,814 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:23:45,817 WARN L261 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 213 conjunts are in the unsatisfiable core [2022-03-16 22:23:45,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:23:49,668 INFO L134 CoverageAnalysis]: Checked inductivity of 2225 backedges. 0 proven. 2225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:23:49,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:23:52,294 INFO L134 CoverageAnalysis]: Checked inductivity of 2225 backedges. 0 proven. 2225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:23:52,294 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917865369] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:23:52,294 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:23:52,294 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 59, 55] total 160 [2022-03-16 22:23:52,294 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794854743] [2022-03-16 22:23:52,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:23:52,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 161 states [2022-03-16 22:23:52,295 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:23:52,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 161 interpolants. [2022-03-16 22:23:52,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7815, Invalid=17945, Unknown=0, NotChecked=0, Total=25760 [2022-03-16 22:23:52,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:23:52,304 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:23:52,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 161 states, 161 states have (on average 2.0869565217391304) internal successors, (336), 160 states have internal predecessors, (336), 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) [2022-03-16 22:23:52,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-16 22:23:52,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 100 states. [2022-03-16 22:23:52,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 230 states. [2022-03-16 22:23:52,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 239 states. [2022-03-16 22:23:52,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:24:16,673 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 18503 transitions and produced 14454 states. [2022-03-16 22:24:16,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-03-16 22:24:16,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-03-16 22:24:16,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 230 states. [2022-03-16 22:24:16,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 239 states. [2022-03-16 22:24:16,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 264 states. [2022-03-16 22:24:16,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-16 22:24:16,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:24:16,876 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 22:24:16,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:24:16,877 INFO L85 PathProgramCache]: Analyzing trace with hash 193252341, now seen corresponding path program 6 times [2022-03-16 22:24:16,877 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:24:16,877 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367832347] [2022-03-16 22:24:16,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:24:16,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:24:16,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:24:19,153 INFO L134 CoverageAnalysis]: Checked inductivity of 3700 backedges. 3090 proven. 592 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-03-16 22:24:19,153 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:24:19,153 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367832347] [2022-03-16 22:24:19,153 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367832347] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:24:19,154 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148187169] [2022-03-16 22:24:19,154 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 22:24:19,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:24:19,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:24:19,156 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) [2022-03-16 22:24:19,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-16 22:24:19,283 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 61 check-sat command(s) [2022-03-16 22:24:19,283 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:24:19,287 WARN L261 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 289 conjunts are in the unsatisfiable core [2022-03-16 22:24:19,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:24:25,446 INFO L134 CoverageAnalysis]: Checked inductivity of 3700 backedges. 0 proven. 3700 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:24:25,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:24:29,706 INFO L134 CoverageAnalysis]: Checked inductivity of 3700 backedges. 0 proven. 3698 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-16 22:24:29,706 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148187169] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:24:29,706 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:24:29,706 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 78, 69] total 206 [2022-03-16 22:24:29,706 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324522598] [2022-03-16 22:24:29,706 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:24:29,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 207 states [2022-03-16 22:24:29,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:24:29,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 207 interpolants. [2022-03-16 22:24:29,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13305, Invalid=29337, Unknown=0, NotChecked=0, Total=42642 [2022-03-16 22:24:29,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:24:29,715 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:24:29,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 207 states, 207 states have (on average 2.1207729468599035) internal successors, (439), 206 states have internal predecessors, (439), 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) [2022-03-16 22:24:29,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2022-03-16 22:24:29,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 100 states. [2022-03-16 22:24:29,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 230 states. [2022-03-16 22:24:29,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 239 states. [2022-03-16 22:24:29,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 264 states. [2022-03-16 22:24:29,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:24:59,385 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 22727 transitions and produced 17732 states. [2022-03-16 22:24:59,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-03-16 22:24:59,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-03-16 22:24:59,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 231 states. [2022-03-16 22:24:59,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 239 states. [2022-03-16 22:24:59,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 266 states. [2022-03-16 22:24:59,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 273 states. [2022-03-16 22:24:59,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-16 22:24:59,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:24:59,587 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 22:24:59,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:24:59,587 INFO L85 PathProgramCache]: Analyzing trace with hash -833609533, now seen corresponding path program 7 times [2022-03-16 22:24:59,587 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:24:59,587 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972796296] [2022-03-16 22:24:59,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:24:59,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:24:59,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:25:02,298 INFO L134 CoverageAnalysis]: Checked inductivity of 5645 backedges. 5196 proven. 356 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-03-16 22:25:02,298 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:25:02,298 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972796296] [2022-03-16 22:25:02,299 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972796296] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:25:02,299 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606676013] [2022-03-16 22:25:02,304 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-16 22:25:02,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:25:02,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:25:02,305 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) [2022-03-16 22:25:02,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-16 22:25:02,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:25:02,381 WARN L261 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 357 conjunts are in the unsatisfiable core [2022-03-16 22:25:02,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:25:10,839 INFO L134 CoverageAnalysis]: Checked inductivity of 5645 backedges. 0 proven. 5645 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:25:10,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:25:15,562 INFO L134 CoverageAnalysis]: Checked inductivity of 5645 backedges. 39 proven. 5528 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-03-16 22:25:15,563 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606676013] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:25:15,563 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:25:15,563 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [72, 95, 76] total 237 [2022-03-16 22:25:15,563 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696578792] [2022-03-16 22:25:15,563 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:25:15,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 238 states [2022-03-16 22:25:15,564 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:25:15,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 238 interpolants. [2022-03-16 22:25:15,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18077, Invalid=38329, Unknown=0, NotChecked=0, Total=56406 [2022-03-16 22:25:15,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:25:15,573 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:25:15,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 238 states, 238 states have (on average 2.088235294117647) internal successors, (497), 237 states have internal predecessors, (497), 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) [2022-03-16 22:25:15,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2022-03-16 22:25:15,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-03-16 22:25:15,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 231 states. [2022-03-16 22:25:15,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 239 states. [2022-03-16 22:25:15,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 266 states. [2022-03-16 22:25:15,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 273 states. [2022-03-16 22:25:15,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:26:21,177 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 34885 transitions and produced 27692 states. [2022-03-16 22:26:21,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2022-03-16 22:26:21,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-03-16 22:26:21,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 250 states. [2022-03-16 22:26:21,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 263 states. [2022-03-16 22:26:21,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 286 states. [2022-03-16 22:26:21,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 294 states. [2022-03-16 22:26:21,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 614 states. [2022-03-16 22:26:21,194 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-03-16 22:26:21,378 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,SelfDestructingSolverStorable6 [2022-03-16 22:26:21,379 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 22:26:21,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:26:21,379 INFO L85 PathProgramCache]: Analyzing trace with hash 563773009, now seen corresponding path program 8 times [2022-03-16 22:26:21,379 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:26:21,379 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483908419] [2022-03-16 22:26:21,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:26:21,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:26:22,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:26:40,787 INFO L134 CoverageAnalysis]: Checked inductivity of 23554 backedges. 170 proven. 23341 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-16 22:26:40,787 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:26:40,787 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483908419] [2022-03-16 22:26:40,788 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483908419] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:26:40,788 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047279411] [2022-03-16 22:26:40,788 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 22:26:40,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:26:40,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:26:40,789 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 22:26:40,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-16 22:26:40,983 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 22:26:40,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:26:40,996 WARN L261 TraceCheckSpWp]: Trace formula consists of 1068 conjuncts, 841 conjunts are in the unsatisfiable core [2022-03-16 22:26:41,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:27:22,805 INFO L134 CoverageAnalysis]: Checked inductivity of 23554 backedges. 0 proven. 23554 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:27:22,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:27:38,447 INFO L134 CoverageAnalysis]: Checked inductivity of 23554 backedges. 7055 proven. 15140 refuted. 0 times theorem prover too weak. 1359 trivial. 0 not checked. [2022-03-16 22:27:38,447 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047279411] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:27:38,448 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:27:38,448 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [205, 216, 85] total 499 [2022-03-16 22:27:38,448 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943100724] [2022-03-16 22:27:38,448 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:27:38,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 500 states [2022-03-16 22:27:38,450 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:27:38,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 500 interpolants. [2022-03-16 22:27:38,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33819, Invalid=215681, Unknown=0, NotChecked=0, Total=249500 [2022-03-16 22:27:38,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:27:38,477 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:27:38,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 500 states, 500 states have (on average 2.04) internal successors, (1020), 499 states have internal predecessors, (1020), 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) [2022-03-16 22:27:38,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 142 states. [2022-03-16 22:27:38,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. [2022-03-16 22:27:38,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 250 states. [2022-03-16 22:27:38,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 263 states. [2022-03-16 22:27:38,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 286 states. [2022-03-16 22:27:38,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 294 states. [2022-03-16 22:27:38,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 614 states. [2022-03-16 22:27:38,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:29:59,848 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 31998 transitions and produced 25132 states. [2022-03-16 22:29:59,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2022-03-16 22:29:59,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-03-16 22:29:59,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 250 states. [2022-03-16 22:29:59,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 263 states. [2022-03-16 22:29:59,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 286 states. [2022-03-16 22:29:59,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 294 states. [2022-03-16 22:29:59,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 614 states. [2022-03-16 22:29:59,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 924 states. [2022-03-16 22:29:59,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-16 22:30:00,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:30:00,050 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 22:30:00,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:30:00,051 INFO L85 PathProgramCache]: Analyzing trace with hash 937384587, now seen corresponding path program 9 times [2022-03-16 22:30:00,051 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:30:00,051 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763155551] [2022-03-16 22:30:00,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:30:00,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:30:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:30:16,110 INFO L134 CoverageAnalysis]: Checked inductivity of 60185 backedges. 49450 proven. 9149 refuted. 0 times theorem prover too weak. 1586 trivial. 0 not checked. [2022-03-16 22:30:16,110 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:30:16,111 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763155551] [2022-03-16 22:30:16,111 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763155551] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:30:16,111 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735173184] [2022-03-16 22:30:16,111 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 22:30:16,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:30:16,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:30:16,120 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 22:30:16,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-16 22:30:20,243 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 213 check-sat command(s) [2022-03-16 22:30:20,243 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:30:20,272 WARN L261 TraceCheckSpWp]: Trace formula consists of 1613 conjuncts, 1277 conjunts are in the unsatisfiable core [2022-03-16 22:30:20,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:31:31,389 INFO L134 CoverageAnalysis]: Checked inductivity of 60185 backedges. 0 proven. 60185 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:31:31,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:31:53,558 INFO L134 CoverageAnalysis]: Checked inductivity of 60185 backedges. 7867 proven. 50844 refuted. 0 times theorem prover too weak. 1474 trivial. 0 not checked. [2022-03-16 22:31:53,559 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735173184] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:31:53,559 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:31:53,559 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [164, 325, 177] total 659 [2022-03-16 22:31:53,560 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360180858] [2022-03-16 22:31:53,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:31:53,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 660 states [2022-03-16 22:31:53,562 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:31:53,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 660 interpolants. [2022-03-16 22:31:53,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137032, Invalid=297908, Unknown=0, NotChecked=0, Total=434940 [2022-03-16 22:31:53,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:31:53,612 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:31:53,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 660 states, 660 states have (on average 2.0924242424242423) internal successors, (1381), 659 states have internal predecessors, (1381), 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) [2022-03-16 22:31:53,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 142 states. [2022-03-16 22:31:53,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. [2022-03-16 22:31:53,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 250 states. [2022-03-16 22:31:53,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 263 states. [2022-03-16 22:31:53,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 286 states. [2022-03-16 22:31:53,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 294 states. [2022-03-16 22:31:53,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 614 states. [2022-03-16 22:31:53,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 924 states. [2022-03-16 22:31:53,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-03-16 22:34:22,113 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-16 22:34:22,113 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 [2022-03-16 22:34:22,121 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-03-16 22:34:22,124 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 [2022-03-16 22:34:22,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-03-16 22:34:22,301 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 1456 known predicates. [2022-03-16 22:34:22,303 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-16 22:34:22,303 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-16 22:34:22,303 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-16 22:34:22,307 INFO L732 BasicCegarLoop]: Path program histogram: [9] [2022-03-16 22:34:22,309 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 22:34:22,309 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 22:34:22,311 INFO L202 PluginConnector]: Adding new model nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 10:34:22 BasicIcfg [2022-03-16 22:34:22,311 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 22:34:22,312 INFO L158 Benchmark]: Toolchain (without parser) took 700486.32ms. Allocated memory was 195.0MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 151.2MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2022-03-16 22:34:22,312 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 195.0MB. Free memory is still 152.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 22:34:22,312 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.62ms. Allocated memory is still 195.0MB. Free memory was 151.2MB in the beginning and 149.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 22:34:22,312 INFO L158 Benchmark]: Boogie Preprocessor took 15.30ms. Allocated memory is still 195.0MB. Free memory was 149.7MB in the beginning and 148.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 22:34:22,312 INFO L158 Benchmark]: RCFGBuilder took 183.24ms. Allocated memory is still 195.0MB. Free memory was 148.7MB in the beginning and 139.8MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-16 22:34:22,313 INFO L158 Benchmark]: TraceAbstraction took 700247.47ms. Allocated memory was 195.0MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 139.4MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2022-03-16 22:34:22,314 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 0.11ms. Allocated memory is still 195.0MB. Free memory is still 152.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.62ms. Allocated memory is still 195.0MB. Free memory was 151.2MB in the beginning and 149.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.30ms. Allocated memory is still 195.0MB. Free memory was 149.7MB in the beginning and 148.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 183.24ms. Allocated memory is still 195.0MB. Free memory was 148.7MB in the beginning and 139.8MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 700247.47ms. Allocated memory was 195.0MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 139.4MB in the beginning and 1.2GB in the end (delta: -1.1GB). 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: 50]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 1456 known predicates. - TimeoutResultAtElement [Line: 45]: 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 1456 known predicates. - TimeoutResultAtElement [Line: 45]: 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 1456 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 32 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 700.2s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 451.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 3699, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 7.7s SatisfiabilityAnalysisTime, 238.8s InterpolantComputationTime, 3698 NumberOfCodeBlocks, 3698 NumberOfCodeBlocksAsserted, 374 NumberOfCheckSat, 5520 ConstructedInterpolants, 0 QuantifiedInterpolants, 93541 SizeOfPredicates, 81 NumberOfNonLiveVariables, 4537 ConjunctsInSsa, 3509 ConjunctsInUnsatCore, 27 InterpolantComputations, 0 PerfectInterpolantSequences, 82205/296265 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