/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/buffer-series.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 06:56:17,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 06:56:17,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 06:56:17,866 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 06:56:17,867 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 06:56:17,870 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 06:56:17,873 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 06:56:17,880 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 06:56:17,881 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 06:56:17,882 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 06:56:17,883 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 06:56:17,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 06:56:17,884 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 06:56:17,884 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 06:56:17,885 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 06:56:17,886 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 06:56:17,887 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 06:56:17,888 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 06:56:17,889 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 06:56:17,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 06:56:17,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 06:56:17,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 06:56:17,901 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 06:56:17,902 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 06:56:17,911 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 06:56:17,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 06:56:17,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 06:56:17,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 06:56:17,924 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-03-16 06:56:17,954 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 06:56:17,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 06:56:17,955 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 06:56:17,955 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 06:56:17,956 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 06:56:17,956 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 06:56:17,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 06:56:17,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 06:56:17,956 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 06:56:17,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 06:56:17,957 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 06:56:17,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 06:56:17,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 06:56:17,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 06:56:17,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 06:56:17,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 06:56:17,957 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 06:56:17,957 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 06:56:17,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 06:56:17,958 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 06:56:17,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 06:56:17,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 06:56:17,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 06:56:17,958 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 06:56:17,958 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 06:56:17,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 06:56:17,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 06:56:17,959 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 06:56:17,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 06:56:17,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 06:56:17,961 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 06:56:17,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 06:56:17,961 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 06:56:17,962 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 06:56:17,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 06:56:17,962 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-16 06:56:17,963 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-16 06:56:17,963 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-16 06:56:17,963 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 06:56:18,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 06:56:18,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 06:56:18,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 06:56:18,202 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-16 06:56:18,207 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-16 06:56:18,208 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/buffer-series.wvr.bpl [2022-03-16 06:56:18,209 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/buffer-series.wvr.bpl' [2022-03-16 06:56:18,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 06:56:18,245 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-16 06:56:18,246 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 06:56:18,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 06:56:18,247 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 06:56:18,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:56:18" (1/1) ... [2022-03-16 06:56:18,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:56:18" (1/1) ... [2022-03-16 06:56:18,270 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-16 06:56:18,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 06:56:18,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 06:56:18,274 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 06:56:18,274 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 06:56:18,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:56:18" (1/1) ... [2022-03-16 06:56:18,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:56:18" (1/1) ... [2022-03-16 06:56:18,284 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:56:18" (1/1) ... [2022-03-16 06:56:18,284 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:56:18" (1/1) ... [2022-03-16 06:56:18,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:56:18" (1/1) ... [2022-03-16 06:56:18,294 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:56:18" (1/1) ... [2022-03-16 06:56:18,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:56:18" (1/1) ... [2022-03-16 06:56:18,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 06:56:18,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 06:56:18,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 06:56:18,300 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 06:56:18,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:56:18" (1/1) ... [2022-03-16 06:56:18,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 06:56:18,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 06:56:18,333 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 06:56:18,340 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 06:56:18,367 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-16 06:56:18,367 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 06:56:18,368 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 06:56:18,368 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-16 06:56:18,368 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 06:56:18,368 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 06:56:18,369 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-16 06:56:18,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 06:56:18,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 06:56:18,369 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-16 06:56:18,370 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-16 06:56:18,370 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-16 06:56:18,371 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-16 06:56:18,373 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-16 06:56:18,373 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-16 06:56:18,374 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 06:56:18,421 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 06:56:18,422 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 06:56:18,503 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 06:56:18,520 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 06:56:18,521 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 06:56:18,523 INFO L202 PluginConnector]: Adding new model buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 06:56:18 BoogieIcfgContainer [2022-03-16 06:56:18,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 06:56:18,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 06:56:18,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 06:56:18,527 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 06:56:18,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:56:18" (1/2) ... [2022-03-16 06:56:18,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@605b205 and model type buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 06:56:18, skipping insertion in model container [2022-03-16 06:56:18,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 06:56:18" (2/2) ... [2022-03-16 06:56:18,530 INFO L111 eAbstractionObserver]: Analyzing ICFG buffer-series.wvr.bpl [2022-03-16 06:56:18,534 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 06:56:18,534 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 06:56:18,535 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 06:56:18,535 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 06:56:18,586 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-16 06:56:18,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 06:56:18,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 06:56:18,647 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 06:56:18,649 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 06:56:18,691 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 06:56:18,697 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-03-16 06:56:18,697 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-16 06:56:25,307 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 55373 transitions and produced 19321 states. [2022-03-16 06:56:25,310 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-16 06:56:25,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 06:56:25,315 INFO L85 PathProgramCache]: Analyzing trace with hash 751167914, now seen corresponding path program 1 times [2022-03-16 06:56:25,322 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 06:56:25,323 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128506202] [2022-03-16 06:56:25,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 06:56:25,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 06:56:25,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 06:56:26,404 INFO L134 CoverageAnalysis]: Checked inductivity of 9984 backedges. 2584 proven. 0 refuted. 0 times theorem prover too weak. 7400 trivial. 0 not checked. [2022-03-16 06:56:26,404 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 06:56:26,405 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128506202] [2022-03-16 06:56:26,405 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128506202] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 06:56:26,405 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 06:56:26,406 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-16 06:56:26,413 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112245932] [2022-03-16 06:56:26,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 06:56:26,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-16 06:56:26,437 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 06:56:26,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-16 06:56:26,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-16 06:56:26,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:56:26,474 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 06:56:26,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 06:56:26,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:56:27,137 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2422 transitions and produced 1862 states. [2022-03-16 06:56:27,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:56:27,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-16 06:56:27,139 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-16 06:56:27,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 06:56:27,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1373676596, now seen corresponding path program 2 times [2022-03-16 06:56:27,140 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 06:56:27,141 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453461206] [2022-03-16 06:56:27,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 06:56:27,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 06:56:27,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 06:56:27,411 INFO L134 CoverageAnalysis]: Checked inductivity of 14564 backedges. 678 proven. 0 refuted. 0 times theorem prover too weak. 13886 trivial. 0 not checked. [2022-03-16 06:56:27,412 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 06:56:27,413 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453461206] [2022-03-16 06:56:27,413 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453461206] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 06:56:27,413 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 06:56:27,413 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-16 06:56:27,413 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610763024] [2022-03-16 06:56:27,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 06:56:27,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-16 06:56:27,416 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 06:56:27,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-16 06:56:27,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-16 06:56:27,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:56:27,419 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 06:56:27,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 06:56:27,420 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:56:27,420 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:56:28,164 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2418 transitions and produced 1855 states. [2022-03-16 06:56:28,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:56:28,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:56:28,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-16 06:56:28,166 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-16 06:56:28,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 06:56:28,168 INFO L85 PathProgramCache]: Analyzing trace with hash 675717116, now seen corresponding path program 3 times [2022-03-16 06:56:28,169 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 06:56:28,169 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968630751] [2022-03-16 06:56:28,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 06:56:28,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 06:56:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 06:56:35,016 INFO L134 CoverageAnalysis]: Checked inductivity of 14208 backedges. 10481 proven. 3593 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2022-03-16 06:56:35,016 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 06:56:35,016 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968630751] [2022-03-16 06:56:35,016 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968630751] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 06:56:35,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175556705] [2022-03-16 06:56:35,017 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 06:56:35,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 06:56:35,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 06:56:35,022 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 06:56:35,072 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 06:56:35,214 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2022-03-16 06:56:35,215 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 06:56:35,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 16 conjunts are in the unsatisfiable core [2022-03-16 06:56:35,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 06:56:36,388 INFO L134 CoverageAnalysis]: Checked inductivity of 14208 backedges. 5446 proven. 19 refuted. 0 times theorem prover too weak. 8743 trivial. 0 not checked. [2022-03-16 06:56:36,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 06:56:36,970 INFO L134 CoverageAnalysis]: Checked inductivity of 14208 backedges. 5446 proven. 19 refuted. 0 times theorem prover too weak. 8743 trivial. 0 not checked. [2022-03-16 06:56:36,970 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175556705] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 06:56:36,971 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 06:56:36,971 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [121, 7, 7] total 127 [2022-03-16 06:56:36,972 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466510265] [2022-03-16 06:56:36,972 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 06:56:36,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 127 states [2022-03-16 06:56:36,974 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 06:56:36,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 127 interpolants. [2022-03-16 06:56:36,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4663, Invalid=11339, Unknown=0, NotChecked=0, Total=16002 [2022-03-16 06:56:36,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:56:36,986 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 06:56:36,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 127 states, 127 states have (on average 3.4645669291338583) internal successors, (440), 127 states have internal predecessors, (440), 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 06:56:36,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:56:36,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:56:36,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:56:38,238 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2533 transitions and produced 1949 states. [2022-03-16 06:56:38,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:56:38,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:56:38,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-16 06:56:38,277 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 06:56:38,463 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,SelfDestructingSolverStorable2 [2022-03-16 06:56:38,464 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-16 06:56:38,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 06:56:38,464 INFO L85 PathProgramCache]: Analyzing trace with hash 85137986, now seen corresponding path program 4 times [2022-03-16 06:56:38,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 06:56:38,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038223019] [2022-03-16 06:56:38,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 06:56:38,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 06:56:38,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 06:56:44,930 INFO L134 CoverageAnalysis]: Checked inductivity of 15200 backedges. 10529 proven. 4529 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-03-16 06:56:44,931 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 06:56:44,931 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038223019] [2022-03-16 06:56:44,931 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038223019] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 06:56:44,931 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152315983] [2022-03-16 06:56:44,931 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 06:56:44,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 06:56:44,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 06:56:44,936 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 06:56:44,937 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 06:56:45,144 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 06:56:45,145 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 06:56:45,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 1299 conjuncts, 126 conjunts are in the unsatisfiable core [2022-03-16 06:56:45,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 06:56:55,851 INFO L134 CoverageAnalysis]: Checked inductivity of 15200 backedges. 3305 proven. 11460 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-03-16 06:56:55,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 06:56:58,432 INFO L134 CoverageAnalysis]: Checked inductivity of 15200 backedges. 9689 proven. 4021 refuted. 0 times theorem prover too weak. 1490 trivial. 0 not checked. [2022-03-16 06:56:58,433 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152315983] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 06:56:58,433 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 06:56:58,433 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [128, 125, 17] total 268 [2022-03-16 06:56:58,434 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912958592] [2022-03-16 06:56:58,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 06:56:58,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 269 states [2022-03-16 06:56:58,437 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 06:56:58,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 269 interpolants. [2022-03-16 06:56:58,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6197, Invalid=65895, Unknown=0, NotChecked=0, Total=72092 [2022-03-16 06:56:58,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:56:58,458 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 06:56:58,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 269 states, 269 states have (on average 3.5985130111524164) internal successors, (968), 268 states have internal predecessors, (968), 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 06:56:58,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:56:58,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:56:58,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-16 06:56:58,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:57:40,772 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 18882 transitions and produced 6518 states. [2022-03-16 06:57:40,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:57:40,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:57:40,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 294 states. [2022-03-16 06:57:40,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 273 states. [2022-03-16 06:57:40,802 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 06:57:40,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 06:57:41,000 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-16 06:57:41,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 06:57:41,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1562202718, now seen corresponding path program 5 times [2022-03-16 06:57:41,001 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 06:57:41,001 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28023177] [2022-03-16 06:57:41,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 06:57:41,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 06:57:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 06:58:22,552 INFO L134 CoverageAnalysis]: Checked inductivity of 87130 backedges. 67496 proven. 16379 refuted. 0 times theorem prover too weak. 3255 trivial. 0 not checked. [2022-03-16 06:58:22,553 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 06:58:22,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28023177] [2022-03-16 06:58:22,553 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28023177] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 06:58:22,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976442105] [2022-03-16 06:58:22,553 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 06:58:22,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 06:58:22,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 06:58:22,556 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 06:58:22,603 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 06:58:27,523 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 181 check-sat command(s) [2022-03-16 06:58:27,523 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 06:58:27,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 2782 conjuncts, 284 conjunts are in the unsatisfiable core [2022-03-16 06:58:27,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 06:59:28,060 INFO L134 CoverageAnalysis]: Checked inductivity of 87130 backedges. 67590 proven. 19496 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-16 06:59:28,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:00:21,028 INFO L134 CoverageAnalysis]: Checked inductivity of 87130 backedges. 74476 proven. 12566 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-03-16 07:00:21,029 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976442105] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 07:00:21,029 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 07:00:21,029 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [357, 283, 222] total 860 [2022-03-16 07:00:21,030 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163886395] [2022-03-16 07:00:21,030 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 07:00:21,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 861 states [2022-03-16 07:00:21,033 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 07:00:21,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 861 interpolants. [2022-03-16 07:00:21,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135482, Invalid=604978, Unknown=0, NotChecked=0, Total=740460 [2022-03-16 07:00:21,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:00:21,100 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 07:00:21,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 861 states, 861 states have (on average 3.5377468060394888) internal successors, (3046), 860 states have internal predecessors, (3046), 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 07:00:21,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 07:00:21,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 07:00:21,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 294 states. [2022-03-16 07:00:21,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 273 states. [2022-03-16 07:00:21,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-03-16 07:08:47,484 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 07:08:47,485 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 07:08:47,485 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-16 07:08:48,058 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 07:08:48,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:08:48,238 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 1782 known predicates. [2022-03-16 07:08:48,240 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-03-16 07:08:48,241 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-03-16 07:08:48,241 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-03-16 07:08:48,241 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-03-16 07:08:48,241 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-03-16 07:08:48,249 INFO L732 BasicCegarLoop]: Path program histogram: [5] [2022-03-16 07:08:48,251 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 07:08:48,251 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 07:08:48,259 INFO L202 PluginConnector]: Adding new model buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 07:08:48 BasicIcfg [2022-03-16 07:08:48,259 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 07:08:48,260 INFO L158 Benchmark]: Toolchain (without parser) took 750014.15ms. Allocated memory was 175.1MB in the beginning and 3.9GB in the end (delta: 3.7GB). Free memory was 131.4MB in the beginning and 2.3GB in the end (delta: -2.2GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2022-03-16 07:08:48,260 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.72ms. Allocated memory is still 175.1MB. Free memory is still 132.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 07:08:48,260 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.19ms. Allocated memory is still 175.1MB. Free memory was 131.4MB in the beginning and 129.8MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-16 07:08:48,261 INFO L158 Benchmark]: Boogie Preprocessor took 24.86ms. Allocated memory is still 175.1MB. Free memory was 129.8MB in the beginning and 128.9MB in the end (delta: 911.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 07:08:48,261 INFO L158 Benchmark]: RCFGBuilder took 223.31ms. Allocated memory is still 175.1MB. Free memory was 128.7MB in the beginning and 118.8MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-16 07:08:48,261 INFO L158 Benchmark]: TraceAbstraction took 749734.33ms. Allocated memory was 175.1MB in the beginning and 3.9GB in the end (delta: 3.7GB). Free memory was 118.4MB in the beginning and 2.3GB in the end (delta: -2.2GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2022-03-16 07:08:48,263 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 0.72ms. Allocated memory is still 175.1MB. Free memory is still 132.6MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.19ms. Allocated memory is still 175.1MB. Free memory was 131.4MB in the beginning and 129.8MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.86ms. Allocated memory is still 175.1MB. Free memory was 129.8MB in the beginning and 128.9MB in the end (delta: 911.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 223.31ms. Allocated memory is still 175.1MB. Free memory was 128.7MB in the beginning and 118.8MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 749734.33ms. Allocated memory was 175.1MB in the beginning and 3.9GB in the end (delta: 3.7GB). Free memory was 118.4MB in the beginning and 2.3GB in the end (delta: -2.2GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 1782 known predicates. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 1782 known predicates. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 1782 known predicates. - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 1782 known predicates. - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 1782 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 54 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 749.6s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 558.5s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 1496, 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, 7.1s SatisfiabilityAnalysisTime, 182.4s InterpolantComputationTime, 5182 NumberOfCodeBlocks, 4832 NumberOfCodeBlocksAsserted, 199 NumberOfCheckSat, 7304 ConstructedInterpolants, 0 QuantifiedInterpolants, 42258 SizeOfPredicates, 8 NumberOfNonLiveVariables, 4480 ConjunctsInSsa, 426 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 302080/374162 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