/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/buffer-series-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 11:51:03,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 11:51:03,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 11:51:03,218 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-04 11:51:03,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 11:51:03,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 11:51:03,235 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 11:51:03,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 11:51:03,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 11:51:03,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 11:51:03,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 11:51:03,243 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 11:51:03,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 11:51:03,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 11:51:03,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 11:51:03,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 11:51:03,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 11:51:03,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 11:51:03,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 11:51:03,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 11:51:03,259 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 [2022-03-04 11:51:03,281 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 11:51:03,282 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 11:51:03,282 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 11:51:03,282 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 11:51:03,283 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 11:51:03,283 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 11:51:03,283 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 11:51:03,283 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 11:51:03,284 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 11:51:03,284 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 11:51:03,284 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 11:51:03,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 11:51:03,285 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 11:51:03,285 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 11:51:03,285 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 11:51:03,285 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 11:51:03,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 11:51:03,285 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 11:51:03,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 11:51:03,285 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 11:51:03,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 11:51:03,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 11:51:03,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 11:51:03,286 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 11:51:03,287 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 11:51:03,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 11:51:03,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 11:51:03,287 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 11:51:03,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 11:51:03,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 11:51:03,287 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 11:51:03,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 11:51:03,288 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 11:51:03,288 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 11:51:03,288 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 11:51:03,288 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-04 11:51:03,288 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 11:51:03,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 11:51:03,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 11:51:03,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 11:51:03,492 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 11:51:03,493 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 11:51:03,493 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/buffer-series-array.wvr.bpl [2022-03-04 11:51:03,494 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/buffer-series-array.wvr.bpl' [2022-03-04 11:51:03,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 11:51:03,521 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 11:51:03,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 11:51:03,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 11:51:03,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 11:51:03,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:03" (1/1) ... [2022-03-04 11:51:03,536 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:03" (1/1) ... [2022-03-04 11:51:03,540 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 11:51:03,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 11:51:03,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 11:51:03,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 11:51:03,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 11:51:03,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:03" (1/1) ... [2022-03-04 11:51:03,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:03" (1/1) ... [2022-03-04 11:51:03,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:03" (1/1) ... [2022-03-04 11:51:03,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:03" (1/1) ... [2022-03-04 11:51:03,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:03" (1/1) ... [2022-03-04 11:51:03,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:03" (1/1) ... [2022-03-04 11:51:03,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:03" (1/1) ... [2022-03-04 11:51:03,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 11:51:03,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 11:51:03,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 11:51:03,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 11:51:03,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:03" (1/1) ... [2022-03-04 11:51:03,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 11:51:03,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:51:03,591 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-04 11:51:03,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-04 11:51:03,623 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 11:51:03,623 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 11:51:03,623 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 11:51:03,623 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 11:51:03,623 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 11:51:03,623 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 11:51:03,623 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 11:51:03,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 11:51:03,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 11:51:03,624 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-04 11:51:03,624 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-04 11:51:03,624 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-04 11:51:03,625 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-04 11:51:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-04 11:51:03,626 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-04 11:51:03,627 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 11:51:03,664 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 11:51:03,666 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 11:51:03,741 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 11:51:03,755 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 11:51:03,755 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 11:51:03,757 INFO L202 PluginConnector]: Adding new model buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 11:51:03 BoogieIcfgContainer [2022-03-04 11:51:03,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 11:51:03,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 11:51:03,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 11:51:03,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 11:51:03,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:03" (1/2) ... [2022-03-04 11:51:03,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a05e71a and model type buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 11:51:03, skipping insertion in model container [2022-03-04 11:51:03,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 11:51:03" (2/2) ... [2022-03-04 11:51:03,771 INFO L111 eAbstractionObserver]: Analyzing ICFG buffer-series-array.wvr.bpl [2022-03-04 11:51:03,774 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 11:51:03,774 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 11:51:03,774 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 11:51:03,774 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 11:51:03,810 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-04 11:51:03,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 11:51:03,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:51:03,879 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-04 11:51:03,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-04 11:51:03,915 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 11:51:03,919 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 [2022-03-04 11:51:03,919 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-04 11:51:04,589 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1423 transitions and produced 1337 states. [2022-03-04 11:51:04,591 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 11:51:04,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:51:04,597 INFO L85 PathProgramCache]: Analyzing trace with hash 447327611, now seen corresponding path program 1 times [2022-03-04 11:51:04,602 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:51:04,603 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653039636] [2022-03-04 11:51:04,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:51:04,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:51:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:51:05,026 INFO L134 CoverageAnalysis]: Checked inductivity of 8516 backedges. 2740 proven. 0 refuted. 0 times theorem prover too weak. 5776 trivial. 0 not checked. [2022-03-04 11:51:05,026 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:51:05,027 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653039636] [2022-03-04 11:51:05,027 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653039636] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 11:51:05,027 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 11:51:05,027 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-04 11:51:05,029 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67174865] [2022-03-04 11:51:05,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 11:51:05,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-04 11:51:05,038 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:51:05,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-04 11:51:05,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-04 11:51:05,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:51:05,059 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:51:05,061 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) [2022-03-04 11:51:05,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:51:05,805 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2761 transitions and produced 2417 states. [2022-03-04 11:51:05,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:51:05,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-04 11:51:05,806 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 11:51:05,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:51:05,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1730886557, now seen corresponding path program 2 times [2022-03-04 11:51:05,809 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:51:05,809 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106242924] [2022-03-04 11:51:05,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:51:05,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:51:06,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:51:06,521 INFO L134 CoverageAnalysis]: Checked inductivity of 32710 backedges. 20513 proven. 8891 refuted. 0 times theorem prover too weak. 3306 trivial. 0 not checked. [2022-03-04 11:51:06,521 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:51:06,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106242924] [2022-03-04 11:51:06,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106242924] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:51:06,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336781204] [2022-03-04 11:51:06,522 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 11:51:06,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:51:06,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:51:06,524 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 11:51:06,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-04 11:51:06,787 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 11:51:06,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:51:06,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 1438 conjuncts, 52 conjunts are in the unsatisfiable core [2022-03-04 11:51:06,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:51:08,893 INFO L134 CoverageAnalysis]: Checked inductivity of 32710 backedges. 13334 proven. 2356 refuted. 0 times theorem prover too weak. 17020 trivial. 0 not checked. [2022-03-04 11:51:08,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:51:10,650 INFO L134 CoverageAnalysis]: Checked inductivity of 32710 backedges. 15624 proven. 48 refuted. 0 times theorem prover too weak. 17038 trivial. 0 not checked. [2022-03-04 11:51:10,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336781204] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:51:10,650 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:51:10,651 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 51, 39] total 103 [2022-03-04 11:51:10,651 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532746843] [2022-03-04 11:51:10,651 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:51:10,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2022-03-04 11:51:10,653 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:51:10,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2022-03-04 11:51:10,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2919, Invalid=7793, Unknown=0, NotChecked=0, Total=10712 [2022-03-04 11:51:10,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:51:10,658 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:51:10,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 104 states, 104 states have (on average 3.8846153846153846) internal successors, (404), 103 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 11:51:10,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:51:10,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:51:17,538 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2939 transitions and produced 2389 states. [2022-03-04 11:51:17,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:51:17,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2022-03-04 11:51:17,581 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-04 11:51:17,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-03-04 11:51:17,739 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 11:51:17,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:51:17,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1020910943, now seen corresponding path program 3 times [2022-03-04 11:51:17,740 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:51:17,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735943162] [2022-03-04 11:51:17,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:51:17,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:51:17,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:51:32,891 INFO L134 CoverageAnalysis]: Checked inductivity of 24452 backedges. 10437 proven. 11346 refuted. 0 times theorem prover too weak. 2669 trivial. 0 not checked. [2022-03-04 11:51:32,891 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:51:32,891 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735943162] [2022-03-04 11:51:32,892 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735943162] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:51:32,892 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844515007] [2022-03-04 11:51:32,892 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 11:51:32,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:51:32,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:51:32,893 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 11:51:32,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-04 11:51:33,065 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2022-03-04 11:51:33,066 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:51:33,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 27 conjunts are in the unsatisfiable core [2022-03-04 11:51:33,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:51:34,695 INFO L134 CoverageAnalysis]: Checked inductivity of 24452 backedges. 5004 proven. 65 refuted. 0 times theorem prover too weak. 19383 trivial. 0 not checked. [2022-03-04 11:51:34,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:51:35,443 INFO L134 CoverageAnalysis]: Checked inductivity of 24452 backedges. 5004 proven. 65 refuted. 0 times theorem prover too weak. 19383 trivial. 0 not checked. [2022-03-04 11:51:35,443 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844515007] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:51:35,443 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:51:35,444 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [242, 13, 13] total 257 [2022-03-04 11:51:35,444 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020196910] [2022-03-04 11:51:35,444 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:51:35,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 257 states [2022-03-04 11:51:35,445 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:51:35,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 257 interpolants. [2022-03-04 11:51:35,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13885, Invalid=51907, Unknown=0, NotChecked=0, Total=65792 [2022-03-04 11:51:35,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:51:35,457 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:51:35,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 257 states, 257 states have (on average 1.972762645914397) internal successors, (507), 257 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 11:51:35,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:51:35,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 172 states. [2022-03-04 11:51:35,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:52:24,272 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3847 transitions and produced 3338 states. [2022-03-04 11:52:24,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:52:24,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2022-03-04 11:52:24,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 672 states. [2022-03-04 11:52:24,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-04 11:52:24,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:52:24,475 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 11:52:24,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:52:24,476 INFO L85 PathProgramCache]: Analyzing trace with hash 924734159, now seen corresponding path program 4 times [2022-03-04 11:52:24,476 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:52:24,476 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112457021] [2022-03-04 11:52:24,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:52:24,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:52:24,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:52:59,425 INFO L134 CoverageAnalysis]: Checked inductivity of 45764 backedges. 13474 proven. 29623 refuted. 0 times theorem prover too weak. 2667 trivial. 0 not checked. [2022-03-04 11:52:59,426 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:52:59,426 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112457021] [2022-03-04 11:52:59,426 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112457021] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:52:59,426 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957632355] [2022-03-04 11:52:59,426 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 11:52:59,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:52:59,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:52:59,428 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 11:52:59,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-04 11:52:59,668 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 11:52:59,668 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:52:59,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 2090 conjuncts, 90 conjunts are in the unsatisfiable core [2022-03-04 11:52:59,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:53:14,176 INFO L134 CoverageAnalysis]: Checked inductivity of 45764 backedges. 14582 proven. 2752 refuted. 0 times theorem prover too weak. 28430 trivial. 0 not checked. [2022-03-04 11:53:14,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:53:29,769 INFO L134 CoverageAnalysis]: Checked inductivity of 45764 backedges. 14582 proven. 2752 refuted. 0 times theorem prover too weak. 28430 trivial. 0 not checked. [2022-03-04 11:53:29,769 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957632355] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:53:29,770 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:53:29,770 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [396, 89, 89] total 572 [2022-03-04 11:53:29,770 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129058681] [2022-03-04 11:53:29,770 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:53:29,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 573 states [2022-03-04 11:53:29,772 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:53:29,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 573 interpolants. [2022-03-04 11:53:29,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32748, Invalid=295008, Unknown=0, NotChecked=0, Total=327756 [2022-03-04 11:53:29,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:53:29,793 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:53:29,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 573 states, 573 states have (on average 2.155322862129145) internal successors, (1235), 572 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 11:53:29,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:53:29,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 172 states. [2022-03-04 11:53:29,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 672 states. [2022-03-04 11:53:29,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:54:08,710 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 37272 transitions and produced 29605 states. [2022-03-04 11:54:08,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:54:08,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2022-03-04 11:54:08,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 682 states. [2022-03-04 11:54:08,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 317 states. [2022-03-04 11:54:08,729 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-04 11:54:08,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:54:08,915 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 11:54:08,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:54:08,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1049204283, now seen corresponding path program 5 times [2022-03-04 11:54:08,917 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:54:08,917 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507444457] [2022-03-04 11:54:08,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:54:08,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:54:25,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2022-03-04 12:02:59,013 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 12:02:59,015 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-03-04 12:02:59,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-04 12:02:59,016 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 6606 with TraceHistMax 1768,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 1230 known predicates. [2022-03-04 12:02:59,017 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 12:02:59,017 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-03-04 12:02:59,017 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-03-04 12:02:59,017 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-03-04 12:02:59,017 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-03-04 12:02:59,022 INFO L732 BasicCegarLoop]: Path program histogram: [5] [2022-03-04 12:02:59,023 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 12:02:59,023 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 12:02:59,027 INFO L202 PluginConnector]: Adding new model buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 12:02:59 BasicIcfg [2022-03-04 12:02:59,027 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 12:02:59,027 INFO L158 Benchmark]: Toolchain (without parser) took 715506.42ms. Allocated memory was 207.6MB in the beginning and 6.6GB in the end (delta: 6.4GB). Free memory was 172.2MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 5.2GB. Max. memory is 8.0GB. [2022-03-04 12:02:59,028 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 207.6MB. Free memory is still 173.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 12:02:59,028 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.18ms. Allocated memory is still 207.6MB. Free memory was 172.2MB in the beginning and 170.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 12:02:59,028 INFO L158 Benchmark]: Boogie Preprocessor took 19.29ms. Allocated memory is still 207.6MB. Free memory was 170.6MB in the beginning and 169.7MB in the end (delta: 964.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 12:02:59,029 INFO L158 Benchmark]: RCFGBuilder took 195.23ms. Allocated memory is still 207.6MB. Free memory was 169.7MB in the beginning and 159.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-04 12:02:59,029 INFO L158 Benchmark]: TraceAbstraction took 715268.94ms. Allocated memory was 207.6MB in the beginning and 6.6GB in the end (delta: 6.4GB). Free memory was 158.9MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 5.2GB. Max. memory is 8.0GB. [2022-03-04 12:02:59,031 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.09ms. Allocated memory is still 207.6MB. Free memory is still 173.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.18ms. Allocated memory is still 207.6MB. Free memory was 172.2MB in the beginning and 170.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.29ms. Allocated memory is still 207.6MB. Free memory was 170.6MB in the beginning and 169.7MB in the end (delta: 964.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 195.23ms. Allocated memory is still 207.6MB. Free memory was 169.7MB in the beginning and 159.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 715268.94ms. Allocated memory was 207.6MB in the beginning and 6.6GB in the end (delta: 6.4GB). Free memory was 158.9MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 5.2GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 6606 with TraceHistMax 1768,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 1230 known predicates. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 6606 with TraceHistMax 1768,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 1230 known predicates. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 6606 with TraceHistMax 1768,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 1230 known predicates. - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 6606 with TraceHistMax 1768,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 1230 known predicates. - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 6606 with TraceHistMax 1768,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 1230 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: 715.2s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 96.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 1176, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 86.4s InterpolantComputationTime, 4140 NumberOfCodeBlocks, 3770 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 6058 ConstructedInterpolants, 0 QuantifiedInterpolants, 25324 SizeOfPredicates, 8 NumberOfNonLiveVariables, 3963 ConjunctsInSsa, 169 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 259396/317294 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown