/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/buffer-series.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-02 04:45:04,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-02 04:45:04,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-02 04:45:04,523 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-02 04:45:04,529 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-02 04:45:04,530 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-02 04:45:04,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-02 04:45:04,531 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-02 04:45:04,531 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-02 04:45:04,532 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-02 04:45:04,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-02 04:45:04,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-02 04:45:04,535 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-02 04:45:04,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-02 04:45:04,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-02 04:45:04,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-02 04:45:04,540 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-02 04:45:04,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-02 04:45:04,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-02 04:45:04,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-02 04:45:04,551 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt.epf [2022-03-02 04:45:04,574 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-02 04:45:04,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-02 04:45:04,575 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-02 04:45:04,575 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-02 04:45:04,575 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-02 04:45:04,575 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-02 04:45:04,576 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-02 04:45:04,576 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-02 04:45:04,576 INFO L138 SettingsManager]: * Use SBE=true [2022-03-02 04:45:04,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-02 04:45:04,576 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-02 04:45:04,576 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-02 04:45:04,576 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-02 04:45:04,576 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-02 04:45:04,577 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-02 04:45:04,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-02 04:45:04,577 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-02 04:45:04,577 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-02 04:45:04,577 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-02 04:45:04,577 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-02 04:45:04,577 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-02 04:45:04,577 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-02 04:45:04,577 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-02 04:45:04,577 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-02 04:45:04,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-02 04:45:04,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 04:45:04,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-02 04:45:04,578 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-02 04:45:04,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-02 04:45:04,578 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-02 04:45:04,578 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-02 04:45:04,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-02 04:45:04,578 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-02 04:45:04,578 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-02 04:45:04,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-02 04:45:04,578 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-02 04:45:04,579 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-02 04:45:04,579 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-02 04:45:04,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-02 04:45:04,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-02 04:45:04,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-02 04:45:04,773 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-02 04:45:04,774 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-02 04:45:04,775 INFO L432 ainManager$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 [2022-03-02 04:45:04,776 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/buffer-series.wvr.bpl' [2022-03-02 04:45:04,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-02 04:45:04,798 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-02 04:45:04,799 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-02 04:45:04,799 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-02 04:45:04,799 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-02 04:45:04,806 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 02.03 04:45:04" (1/1) ... [2022-03-02 04:45:04,813 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 02.03 04:45:04" (1/1) ... [2022-03-02 04:45:04,817 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-02 04:45:04,818 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-02 04:45:04,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-02 04:45:04,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-02 04:45:04,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-02 04:45:04,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:45:04" (1/1) ... [2022-03-02 04:45:04,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:45:04" (1/1) ... [2022-03-02 04:45:04,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:45:04" (1/1) ... [2022-03-02 04:45:04,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:45:04" (1/1) ... [2022-03-02 04:45:04,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:45:04" (1/1) ... [2022-03-02 04:45:04,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:45:04" (1/1) ... [2022-03-02 04:45:04,837 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:45:04" (1/1) ... [2022-03-02 04:45:04,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-02 04:45:04,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-02 04:45:04,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-02 04:45:04,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-02 04:45:04,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:45:04" (1/1) ... [2022-03-02 04:45:04,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 04:45:04,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 04:45:04,867 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) [2022-03-02 04:45:04,886 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 [2022-03-02 04:45:04,907 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-02 04:45:04,907 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-02 04:45:04,907 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-02 04:45:04,908 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-02 04:45:04,908 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-02 04:45:04,908 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-02 04:45:04,908 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-02 04:45:04,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-02 04:45:04,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-02 04:45:04,909 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-02 04:45:04,909 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-02 04:45:04,909 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-02 04:45:04,910 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-02 04:45:04,910 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-02 04:45:04,912 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-02 04:45:04,913 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-02 04:45:04,953 INFO L234 CfgBuilder]: Building ICFG [2022-03-02 04:45:04,954 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-02 04:45:05,052 INFO L275 CfgBuilder]: Performing block encoding [2022-03-02 04:45:05,074 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-02 04:45:05,074 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-02 04:45:05,075 INFO L202 PluginConnector]: Adding new model buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 04:45:05 BoogieIcfgContainer [2022-03-02 04:45:05,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-02 04:45:05,092 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-02 04:45:05,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-02 04:45:05,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-02 04:45:05,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:45:04" (1/2) ... [2022-03-02 04:45:05,106 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 02.03 04:45:05, skipping insertion in model container [2022-03-02 04:45:05,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 04:45:05" (2/2) ... [2022-03-02 04:45:05,107 INFO L111 eAbstractionObserver]: Analyzing ICFG buffer-series.wvr.bpl [2022-03-02 04:45:05,113 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-02 04:45:05,113 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-02 04:45:05,113 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-02 04:45:05,114 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-02 04:45:05,155 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-02 04:45:05,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-02 04:45:05,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 04:45:05,216 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) [2022-03-02 04:45:05,220 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 [2022-03-02 04:45:05,268 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-02 04:45:05,281 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=true [2022-03-02 04:45:05,282 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-02 04:45:05,602 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 12631 transitions and produced 4480 states. [2022-03-02 04:45:05,604 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-02 04:45:05,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 04:45:05,608 INFO L85 PathProgramCache]: Analyzing trace with hash -506129211, now seen corresponding path program 1 times [2022-03-02 04:45:05,614 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 04:45:05,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218632210] [2022-03-02 04:45:05,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 04:45:05,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 04:45:05,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 04:45:05,963 INFO L134 CoverageAnalysis]: Checked inductivity of 2762 backedges. 869 proven. 0 refuted. 0 times theorem prover too weak. 1893 trivial. 0 not checked. [2022-03-02 04:45:05,964 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 04:45:05,964 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218632210] [2022-03-02 04:45:05,964 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218632210] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-02 04:45:05,965 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-02 04:45:05,965 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-02 04:45:05,966 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218612616] [2022-03-02 04:45:05,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-02 04:45:05,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-02 04:45:05,976 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 04:45:06,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-02 04:45:06,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-02 04:45:06,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:45:06,021 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 04:45:06,023 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) [2022-03-02 04:45:06,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:45:06,133 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1431 transitions and produced 906 states. [2022-03-02 04:45:06,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 04:45:06,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-02 04:45:06,134 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-02 04:45:06,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 04:45:06,136 INFO L85 PathProgramCache]: Analyzing trace with hash -209219181, now seen corresponding path program 2 times [2022-03-02 04:45:06,137 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 04:45:06,137 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653159327] [2022-03-02 04:45:06,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 04:45:06,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 04:45:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 04:45:08,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2957 backedges. 1697 proven. 1130 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2022-03-02 04:45:08,041 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 04:45:08,042 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653159327] [2022-03-02 04:45:08,042 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653159327] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 04:45:08,042 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465555939] [2022-03-02 04:45:08,042 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 04:45:08,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 04:45:08,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 04:45:08,057 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) [2022-03-02 04:45:08,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-02 04:45:08,168 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 04:45:08,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 04:45:08,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 55 conjunts are in the unsatisfiable core [2022-03-02 04:45:08,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 04:45:11,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2957 backedges. 131 proven. 2727 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-03-02 04:45:11,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 04:45:12,338 INFO L134 CoverageAnalysis]: Checked inductivity of 2957 backedges. 1199 proven. 1452 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-03-02 04:45:12,338 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465555939] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 04:45:12,338 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 04:45:12,339 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 54, 13] total 123 [2022-03-02 04:45:12,339 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600820554] [2022-03-02 04:45:12,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 04:45:12,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 124 states [2022-03-02 04:45:12,341 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 04:45:12,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2022-03-02 04:45:12,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1430, Invalid=13822, Unknown=0, NotChecked=0, Total=15252 [2022-03-02 04:45:12,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:45:12,348 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 04:45:12,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 124 states, 124 states have (on average 3.8548387096774195) internal successors, (478), 123 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 04:45:12,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 04:45:12,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:45:25,487 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1985 transitions and produced 1462 states. [2022-03-02 04:45:25,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 04:45:25,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 244 states. [2022-03-02 04:45:25,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-02 04:45:25,720 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 [2022-03-02 04:45:25,720 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-02 04:45:25,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 04:45:25,721 INFO L85 PathProgramCache]: Analyzing trace with hash 48188039, now seen corresponding path program 3 times [2022-03-02 04:45:25,721 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 04:45:25,721 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995362336] [2022-03-02 04:45:25,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 04:45:25,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 04:45:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 04:45:26,915 INFO L134 CoverageAnalysis]: Checked inductivity of 6164 backedges. 2994 proven. 1162 refuted. 0 times theorem prover too weak. 2008 trivial. 0 not checked. [2022-03-02 04:45:26,915 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 04:45:26,915 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995362336] [2022-03-02 04:45:26,915 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995362336] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 04:45:26,915 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687043521] [2022-03-02 04:45:26,915 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-02 04:45:26,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 04:45:26,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 04:45:26,925 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) [2022-03-02 04:45:26,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-02 04:45:27,001 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-03-02 04:45:27,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 04:45:27,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 12 conjunts are in the unsatisfiable core [2022-03-02 04:45:27,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 04:45:27,532 INFO L134 CoverageAnalysis]: Checked inductivity of 6164 backedges. 913 proven. 5 refuted. 0 times theorem prover too weak. 5246 trivial. 0 not checked. [2022-03-02 04:45:27,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 04:45:27,939 INFO L134 CoverageAnalysis]: Checked inductivity of 6164 backedges. 913 proven. 5 refuted. 0 times theorem prover too weak. 5246 trivial. 0 not checked. [2022-03-02 04:45:27,940 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687043521] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 04:45:27,940 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 04:45:27,940 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 8, 8] total 68 [2022-03-02 04:45:27,940 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919876927] [2022-03-02 04:45:27,940 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 04:45:27,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-03-02 04:45:27,941 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 04:45:27,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-03-02 04:45:27,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1407, Invalid=3149, Unknown=0, NotChecked=0, Total=4556 [2022-03-02 04:45:27,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:45:27,943 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 04:45:27,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 3.323529411764706) internal successors, (226), 68 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 04:45:27,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 04:45:27,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 244 states. [2022-03-02 04:45:27,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:45:31,562 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2981 transitions and produced 2004 states. [2022-03-02 04:45:31,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 04:45:31,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 286 states. [2022-03-02 04:45:31,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-02 04:45:31,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-02 04:45:31,775 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 [2022-03-02 04:45:31,775 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-02 04:45:31,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 04:45:31,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1218238245, now seen corresponding path program 4 times [2022-03-02 04:45:31,776 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 04:45:31,776 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111171453] [2022-03-02 04:45:31,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 04:45:31,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 04:45:32,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 04:45:39,358 INFO L134 CoverageAnalysis]: Checked inductivity of 15745 backedges. 6700 proven. 7539 refuted. 0 times theorem prover too weak. 1506 trivial. 0 not checked. [2022-03-02 04:45:39,358 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 04:45:39,358 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111171453] [2022-03-02 04:45:39,358 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111171453] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 04:45:39,358 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148280070] [2022-03-02 04:45:39,358 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-02 04:45:39,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 04:45:39,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 04:45:39,360 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) [2022-03-02 04:45:39,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-02 04:45:39,548 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-02 04:45:39,548 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 04:45:39,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 1371 conjuncts, 124 conjunts are in the unsatisfiable core [2022-03-02 04:45:39,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 04:45:50,956 INFO L134 CoverageAnalysis]: Checked inductivity of 15745 backedges. 4428 proven. 9679 refuted. 0 times theorem prover too weak. 1638 trivial. 0 not checked. [2022-03-02 04:45:50,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 04:45:55,516 INFO L134 CoverageAnalysis]: Checked inductivity of 15745 backedges. 6829 proven. 6650 refuted. 0 times theorem prover too weak. 2266 trivial. 0 not checked. [2022-03-02 04:45:55,517 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148280070] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 04:45:55,517 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 04:45:55,517 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [162, 123, 39] total 322 [2022-03-02 04:45:55,517 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273591218] [2022-03-02 04:45:55,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 04:45:55,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 323 states [2022-03-02 04:45:55,519 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 04:45:55,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 323 interpolants. [2022-03-02 04:45:55,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7223, Invalid=96783, Unknown=0, NotChecked=0, Total=104006 [2022-03-02 04:45:55,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:45:55,531 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 04:45:55,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 323 states, 323 states have (on average 3.222910216718266) internal successors, (1041), 322 states have internal predecessors, (1041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 04:45:55,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 04:45:55,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 286 states. [2022-03-02 04:45:55,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-03-02 04:45:55,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:46:55,453 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3526 transitions and produced 2568 states. [2022-03-02 04:46:55,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 04:46:55,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 286 states. [2022-03-02 04:46:55,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-02 04:46:55,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 511 states. [2022-03-02 04:46:55,477 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-02 04:46:55,667 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 [2022-03-02 04:46:55,668 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-02 04:46:55,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 04:46:55,668 INFO L85 PathProgramCache]: Analyzing trace with hash 725406080, now seen corresponding path program 5 times [2022-03-02 04:46:55,668 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 04:46:55,668 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902090130] [2022-03-02 04:46:55,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 04:46:55,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 04:46:55,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 04:47:03,721 INFO L134 CoverageAnalysis]: Checked inductivity of 18668 backedges. 7827 proven. 5366 refuted. 0 times theorem prover too weak. 5475 trivial. 0 not checked. [2022-03-02 04:47:03,721 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 04:47:03,722 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902090130] [2022-03-02 04:47:03,722 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902090130] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 04:47:03,722 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271816296] [2022-03-02 04:47:03,722 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-02 04:47:03,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 04:47:03,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 04:47:03,723 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 04:47:03,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-02 04:47:04,597 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 84 check-sat command(s) [2022-03-02 04:47:04,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 04:47:04,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 1451 conjuncts, 147 conjunts are in the unsatisfiable core [2022-03-02 04:47:04,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 04:47:18,908 INFO L134 CoverageAnalysis]: Checked inductivity of 18668 backedges. 9551 proven. 7145 refuted. 0 times theorem prover too weak. 1972 trivial. 0 not checked. [2022-03-02 04:47:18,908 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 04:47:29,485 INFO L134 CoverageAnalysis]: Checked inductivity of 18668 backedges. 9551 proven. 7145 refuted. 0 times theorem prover too weak. 1972 trivial. 0 not checked. [2022-03-02 04:47:29,485 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271816296] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 04:47:29,486 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 04:47:29,486 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [152, 146, 85] total 381 [2022-03-02 04:47:29,490 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567395582] [2022-03-02 04:47:29,490 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 04:47:29,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 382 states [2022-03-02 04:47:29,491 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 04:47:29,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 382 interpolants. [2022-03-02 04:47:29,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24153, Invalid=121389, Unknown=0, NotChecked=0, Total=145542 [2022-03-02 04:47:29,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:47:29,505 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 04:47:29,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 382 states, 382 states have (on average 3.3769633507853403) internal successors, (1290), 381 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 04:47:29,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 04:47:29,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 286 states. [2022-03-02 04:47:29,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-03-02 04:47:29,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 511 states. [2022-03-02 04:47:29,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:48:23,684 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5034 transitions and produced 3222 states. [2022-03-02 04:48:23,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 04:48:23,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 296 states. [2022-03-02 04:48:23,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-02 04:48:23,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 643 states. [2022-03-02 04:48:23,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 549 states. [2022-03-02 04:48:23,704 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-02 04:48:23,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 04:48:23,887 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-02 04:48:23,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 04:48:23,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1848080875, now seen corresponding path program 6 times [2022-03-02 04:48:23,887 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 04:48:23,887 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238400033] [2022-03-02 04:48:23,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 04:48:23,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 04:48:24,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 04:48:47,876 INFO L134 CoverageAnalysis]: Checked inductivity of 44022 backedges. 18795 proven. 19255 refuted. 0 times theorem prover too weak. 5972 trivial. 0 not checked. [2022-03-02 04:48:47,877 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 04:48:47,877 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238400033] [2022-03-02 04:48:47,880 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238400033] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 04:48:47,885 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994909689] [2022-03-02 04:48:47,885 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-02 04:48:47,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 04:48:47,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 04:48:47,886 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 04:48:47,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-02 04:48:48,542 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 69 check-sat command(s) [2022-03-02 04:48:48,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 04:48:48,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 20 conjunts are in the unsatisfiable core [2022-03-02 04:48:48,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 04:48:50,267 INFO L134 CoverageAnalysis]: Checked inductivity of 44022 backedges. 11529 proven. 1044 refuted. 0 times theorem prover too weak. 31449 trivial. 0 not checked. [2022-03-02 04:48:50,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 04:48:51,045 INFO L134 CoverageAnalysis]: Checked inductivity of 44022 backedges. 11529 proven. 1044 refuted. 0 times theorem prover too weak. 31449 trivial. 0 not checked. [2022-03-02 04:48:51,045 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994909689] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 04:48:51,045 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 04:48:51,046 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [296, 10, 10] total 305 [2022-03-02 04:48:51,046 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118165633] [2022-03-02 04:48:51,046 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 04:48:51,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 305 states [2022-03-02 04:48:51,047 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 04:48:51,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 305 interpolants. [2022-03-02 04:48:51,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17346, Invalid=75374, Unknown=0, NotChecked=0, Total=92720 [2022-03-02 04:48:51,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:48:51,052 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 04:48:51,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 305 states, 305 states have (on average 2.226229508196721) internal successors, (679), 305 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 04:48:51,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 04:48:51,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 296 states. [2022-03-02 04:48:51,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-03-02 04:48:51,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 643 states. [2022-03-02 04:48:51,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 549 states. [2022-03-02 04:48:51,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:49:27,639 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5405 transitions and produced 3503 states. [2022-03-02 04:49:27,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 04:49:27,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 296 states. [2022-03-02 04:49:27,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-02 04:49:27,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 718 states. [2022-03-02 04:49:27,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 549 states. [2022-03-02 04:49:27,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 532 states. [2022-03-02 04:49:27,658 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-03-02 04:49:27,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 04:49:27,842 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-02 04:49:27,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 04:49:27,843 INFO L85 PathProgramCache]: Analyzing trace with hash 423123931, now seen corresponding path program 7 times [2022-03-02 04:49:27,843 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 04:49:27,843 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276269595] [2022-03-02 04:49:27,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 04:49:27,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 04:49:28,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 04:50:02,532 INFO L134 CoverageAnalysis]: Checked inductivity of 53051 backedges. 24738 proven. 22346 refuted. 0 times theorem prover too weak. 5967 trivial. 0 not checked. [2022-03-02 04:50:02,532 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 04:50:02,532 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276269595] [2022-03-02 04:50:02,532 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276269595] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 04:50:02,532 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139525217] [2022-03-02 04:50:02,533 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-02 04:50:02,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 04:50:02,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 04:50:02,534 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 04:50:02,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-02 04:50:02,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 04:50:02,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 2307 conjuncts, 232 conjunts are in the unsatisfiable core [2022-03-02 04:50:02,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 04:50:44,455 INFO L134 CoverageAnalysis]: Checked inductivity of 53051 backedges. 25007 proven. 24103 refuted. 0 times theorem prover too weak. 3941 trivial. 0 not checked. [2022-03-02 04:50:44,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 04:51:07,528 INFO L134 CoverageAnalysis]: Checked inductivity of 53051 backedges. 31493 proven. 16984 refuted. 0 times theorem prover too weak. 4574 trivial. 0 not checked. [2022-03-02 04:51:07,530 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139525217] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 04:51:07,530 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 04:51:07,530 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [355, 231, 113] total 697 [2022-03-02 04:51:07,530 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278062308] [2022-03-02 04:51:07,530 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 04:51:07,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 698 states [2022-03-02 04:51:07,532 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 04:51:07,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 698 interpolants. [2022-03-02 04:51:07,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61304, Invalid=425202, Unknown=0, NotChecked=0, Total=486506 [2022-03-02 04:51:07,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:51:07,557 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 04:51:07,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 698 states, 698 states have (on average 2.833810888252149) internal successors, (1978), 697 states have internal predecessors, (1978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 04:51:07,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 04:51:07,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 296 states. [2022-03-02 04:51:07,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-03-02 04:51:07,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 718 states. [2022-03-02 04:51:07,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 549 states. [2022-03-02 04:51:07,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 532 states. [2022-03-02 04:51:07,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:56:51,058 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 8773 transitions and produced 6398 states. [2022-03-02 04:56:51,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 04:56:51,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 296 states. [2022-03-02 04:56:51,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-02 04:56:51,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 718 states. [2022-03-02 04:56:51,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 838 states. [2022-03-02 04:56:51,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 570 states. [2022-03-02 04:56:51,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1181 states. [2022-03-02 04:56:51,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-02 04:56:51,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 04:56:51,259 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-02 04:56:51,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 04:56:51,260 INFO L85 PathProgramCache]: Analyzing trace with hash 2128591337, now seen corresponding path program 8 times [2022-03-02 04:56:51,260 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 04:56:51,260 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745592469] [2022-03-02 04:56:51,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 04:56:51,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 04:56:52,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2022-03-02 04:57:12,139 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-03-02 04:57:12,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-02 04:57:12,139 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 1453 with TraceHistMax 242,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 237 known predicates. [2022-03-02 04:57:12,140 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-03-02 04:57:12,141 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-03-02 04:57:12,141 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-03-02 04:57:12,141 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-03-02 04:57:12,145 INFO L732 BasicCegarLoop]: Path program histogram: [8] [2022-03-02 04:57:12,147 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-02 04:57:12,147 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-02 04:57:12,158 INFO L202 PluginConnector]: Adding new model buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.03 04:57:12 BasicIcfg [2022-03-02 04:57:12,158 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-02 04:57:12,158 INFO L158 Benchmark]: Toolchain (without parser) took 727359.97ms. Allocated memory was 191.9MB in the beginning and 5.5GB in the end (delta: 5.3GB). Free memory was 150.3MB in the beginning and 4.0GB in the end (delta: -3.8GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2022-03-02 04:57:12,158 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.16ms. Allocated memory is still 191.9MB. Free memory is still 151.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-02 04:57:12,158 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.63ms. Allocated memory is still 191.9MB. Free memory was 150.2MB in the beginning and 148.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 04:57:12,159 INFO L158 Benchmark]: Boogie Preprocessor took 21.87ms. Allocated memory is still 191.9MB. Free memory was 148.7MB in the beginning and 147.7MB in the end (delta: 945.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 04:57:12,159 INFO L158 Benchmark]: RCFGBuilder took 238.24ms. Allocated memory is still 191.9MB. Free memory was 147.6MB in the beginning and 137.8MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-02 04:57:12,159 INFO L158 Benchmark]: TraceAbstraction took 727066.15ms. Allocated memory was 191.9MB in the beginning and 5.5GB in the end (delta: 5.3GB). Free memory was 137.3MB in the beginning and 4.0GB in the end (delta: -3.8GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2022-03-02 04:57:12,160 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 0.16ms. Allocated memory is still 191.9MB. Free memory is still 151.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.63ms. Allocated memory is still 191.9MB. Free memory was 150.2MB in the beginning and 148.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.87ms. Allocated memory is still 191.9MB. Free memory was 148.7MB in the beginning and 147.7MB in the end (delta: 945.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 238.24ms. Allocated memory is still 191.9MB. Free memory was 147.6MB in the beginning and 137.8MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 727066.15ms. Allocated memory was 191.9MB in the beginning and 5.5GB in the end (delta: 5.3GB). Free memory was 137.3MB in the beginning and 4.0GB in the end (delta: -3.8GB). 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 PartialOrderCegarLoop was analyzing trace of length 1453 with TraceHistMax 242,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 237 known predicates. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 1453 with TraceHistMax 242,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 237 known predicates. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 1453 with TraceHistMax 242,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 237 known predicates. - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 1453 with TraceHistMax 242,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 237 known predicates. - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 1453 with TraceHistMax 242,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 237 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: 726.9s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 511.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 3678, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 3.4s SatisfiabilityAnalysisTime, 189.2s InterpolantComputationTime, 7206 NumberOfCodeBlocks, 6538 NumberOfCodeBlocksAsserted, 175 NumberOfCheckSat, 10674 ConstructedInterpolants, 0 QuantifiedInterpolants, 65729 SizeOfPredicates, 16 NumberOfNonLiveVariables, 7107 ConjunctsInSsa, 590 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 289802/424583 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown