/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-02 00:20:34,737 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-02 00:20:34,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-02 00:20:34,774 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-02 00:20:34,793 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-02 00:20:34,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-02 00:20:34,794 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-02 00:20:34,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-02 00:20:34,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-02 00:20:34,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-02 00:20:34,796 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-02 00:20:34,797 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-02 00:20:34,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-02 00:20:34,798 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-02 00:20:34,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-02 00:20:34,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-02 00:20:34,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-02 00:20:34,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-02 00:20:34,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-02 00:20:34,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-02 00:20:34,807 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-03-02 00:20:34,821 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-02 00:20:34,822 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-02 00:20:34,823 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-02 00:20:34,823 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-02 00:20:34,823 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-02 00:20:34,823 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-02 00:20:34,824 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-02 00:20:34,824 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-02 00:20:34,824 INFO L138 SettingsManager]: * Use SBE=true [2022-03-02 00:20:34,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-02 00:20:34,825 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-02 00:20:34,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-02 00:20:34,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-02 00:20:34,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-02 00:20:34,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-02 00:20:34,825 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-02 00:20:34,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-02 00:20:34,825 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-02 00:20:34,825 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-02 00:20:34,825 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-02 00:20:34,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-02 00:20:34,826 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-02 00:20:34,826 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-02 00:20:34,826 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-02 00:20:34,827 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-02 00:20:34,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 00:20:34,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-02 00:20:34,827 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-02 00:20:34,827 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-02 00:20:34,827 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-02 00:20:34,827 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-02 00:20:34,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-02 00:20:34,827 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-02 00:20:34,828 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-02 00:20:34,828 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-02 00:20:34,828 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-02 00:20:34,828 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-02 00:20:34,828 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-02 00:20:34,828 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-02 00:20:34,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-02 00:20:35,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-02 00:20:35,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-02 00:20:35,016 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-02 00:20:35,024 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-02 00:20:35,025 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl [2022-03-02 00:20:35,025 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl' [2022-03-02 00:20:35,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-02 00:20:35,048 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-02 00:20:35,049 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-02 00:20:35,049 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-02 00:20:35,049 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-02 00:20:35,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:20:35" (1/1) ... [2022-03-02 00:20:35,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:20:35" (1/1) ... [2022-03-02 00:20:35,066 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-02 00:20:35,066 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-02 00:20:35,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-02 00:20:35,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-02 00:20:35,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-02 00:20:35,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:20:35" (1/1) ... [2022-03-02 00:20:35,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:20:35" (1/1) ... [2022-03-02 00:20:35,073 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:20:35" (1/1) ... [2022-03-02 00:20:35,073 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:20:35" (1/1) ... [2022-03-02 00:20:35,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:20:35" (1/1) ... [2022-03-02 00:20:35,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:20:35" (1/1) ... [2022-03-02 00:20:35,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:20:35" (1/1) ... [2022-03-02 00:20:35,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-02 00:20:35,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-02 00:20:35,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-02 00:20:35,080 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-02 00:20:35,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:20:35" (1/1) ... [2022-03-02 00:20:35,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 00:20:35,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:20:35,107 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 00:20:35,132 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 00:20:35,152 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-02 00:20:35,153 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-02 00:20:35,153 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-02 00:20:35,153 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-02 00:20:35,153 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-02 00:20:35,153 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-02 00:20:35,153 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-02 00:20:35,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-02 00:20:35,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-02 00:20:35,153 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-02 00:20:35,154 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-02 00:20:35,154 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-02 00:20:35,154 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 00:20:35,187 INFO L234 CfgBuilder]: Building ICFG [2022-03-02 00:20:35,188 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-02 00:20:35,272 INFO L275 CfgBuilder]: Performing block encoding [2022-03-02 00:20:35,282 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-02 00:20:35,282 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-02 00:20:35,283 INFO L202 PluginConnector]: Adding new model sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 12:20:35 BoogieIcfgContainer [2022-03-02 00:20:35,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-02 00:20:35,284 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-02 00:20:35,284 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-02 00:20:35,286 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-02 00:20:35,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:20:35" (1/2) ... [2022-03-02 00:20:35,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd35e6c and model type sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.03 12:20:35, skipping insertion in model container [2022-03-02 00:20:35,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 12:20:35" (2/2) ... [2022-03-02 00:20:35,288 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-fun.wvr.bpl [2022-03-02 00:20:35,291 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-02 00:20:35,291 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-02 00:20:35,291 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-02 00:20:35,291 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-02 00:20:35,314 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-02 00:20:35,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-02 00:20:35,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:20:35,387 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 00:20:35,423 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 00:20:35,439 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-02 00:20:35,446 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-03-02 00:20:35,446 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-02 00:20:35,662 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 590 transitions and produced 262 states. [2022-03-02 00:20:35,665 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:20:35,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:20:35,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1731617998, now seen corresponding path program 1 times [2022-03-02 00:20:35,678 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:20:35,679 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784289962] [2022-03-02 00:20:35,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:20:35,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:20:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:20:35,887 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-02 00:20:35,887 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:20:35,887 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784289962] [2022-03-02 00:20:35,888 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784289962] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:20:35,888 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10606356] [2022-03-02 00:20:35,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:20:35,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:20:35,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:20:35,890 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 00:20:35,891 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 00:20:35,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:20:35,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-02 00:20:35,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:20:36,208 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-02 00:20:36,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:20:36,368 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-02 00:20:36,368 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10606356] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:20:36,369 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:20:36,369 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 18 [2022-03-02 00:20:36,371 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412630548] [2022-03-02 00:20:36,371 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:20:36,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-02 00:20:36,377 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:20:36,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-02 00:20:36,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-03-02 00:20:36,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:20:36,396 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:20:36,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 18 states have internal predecessors, (58), 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 00:20:36,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:20:36,866 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 601 transitions and produced 273 states. [2022-03-02 00:20:36,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-02 00:20:36,890 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 00:20:37,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-02 00:20:37,083 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:20:37,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:20:37,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1007173588, now seen corresponding path program 2 times [2022-03-02 00:20:37,084 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:20:37,085 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107145469] [2022-03-02 00:20:37,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:20:37,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:20:37,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:20:37,191 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:20:37,192 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:20:37,192 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107145469] [2022-03-02 00:20:37,192 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107145469] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:20:37,192 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633431963] [2022-03-02 00:20:37,192 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 00:20:37,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:20:37,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:20:37,194 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 00:20:37,195 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 00:20:37,223 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 00:20:37,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:20:37,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-02 00:20:37,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:20:37,370 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:20:37,370 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:20:37,519 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:20:37,519 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633431963] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:20:37,519 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:20:37,519 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-03-02 00:20:37,519 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289767487] [2022-03-02 00:20:37,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:20:37,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-02 00:20:37,520 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:20:37,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-02 00:20:37,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-03-02 00:20:37,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:20:37,521 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:20:37,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.625) internal successors, (63), 24 states have internal predecessors, (63), 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 00:20:37,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-02 00:20:37,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:20:37,847 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 204 transitions and produced 152 states. [2022-03-02 00:20:37,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-02 00:20:37,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:20:37,865 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 00:20:38,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:20:38,056 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:20:38,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:20:38,056 INFO L85 PathProgramCache]: Analyzing trace with hash -170935286, now seen corresponding path program 3 times [2022-03-02 00:20:38,056 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:20:38,056 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163793586] [2022-03-02 00:20:38,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:20:38,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:20:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:20:38,528 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:20:38,528 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:20:38,529 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163793586] [2022-03-02 00:20:38,529 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163793586] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:20:38,529 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808477265] [2022-03-02 00:20:38,529 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-02 00:20:38,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:20:38,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:20:38,530 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 00:20:38,531 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 00:20:38,560 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-03-02 00:20:38,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:20:38,561 WARN L261 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 45 conjunts are in the unsatisfiable core [2022-03-02 00:20:38,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:20:39,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:39,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:39,189 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-02 00:20:39,190 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 87 [2022-03-02 00:20:39,388 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:20:39,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:20:39,938 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:39,939 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:39,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:39,940 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:39,940 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:39,941 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:39,941 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:39,942 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:39,942 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:39,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:39,991 INFO L353 Elim1Store]: treesize reduction 20, result has 78.9 percent of original size [2022-03-02 00:20:39,991 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 40 treesize of output 85 [2022-03-02 00:20:40,114 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:40,114 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:40,115 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:40,115 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:40,115 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:40,116 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:40,116 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:40,117 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:40,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:40,118 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:40,118 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:40,119 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:40,119 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:40,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:40,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:40,121 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 5 [2022-03-02 00:20:40,271 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:20:40,271 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808477265] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:20:40,271 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:20:40,271 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 16] total 38 [2022-03-02 00:20:40,272 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192830734] [2022-03-02 00:20:40,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:20:40,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-03-02 00:20:40,272 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:20:40,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-03-02 00:20:40,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1282, Unknown=0, NotChecked=0, Total=1406 [2022-03-02 00:20:40,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:20:40,273 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:20:40,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.210526315789474) internal successors, (84), 38 states have internal predecessors, (84), 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 00:20:40,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-02 00:20:40,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:20:40,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:20:47,726 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 455 transitions and produced 264 states. [2022-03-02 00:20:47,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-02 00:20:47,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:20:47,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-02 00:20:47,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-02 00:20:47,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:20:47,927 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:20:47,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:20:47,928 INFO L85 PathProgramCache]: Analyzing trace with hash 136490182, now seen corresponding path program 4 times [2022-03-02 00:20:47,928 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:20:47,928 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723914355] [2022-03-02 00:20:47,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:20:47,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:20:47,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:20:48,440 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:20:48,440 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:20:48,440 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723914355] [2022-03-02 00:20:48,440 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723914355] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:20:48,440 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437083459] [2022-03-02 00:20:48,441 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-02 00:20:48,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:20:48,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:20:48,456 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 00:20:48,467 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 00:20:48,501 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-02 00:20:48,501 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:20:48,502 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 50 conjunts are in the unsatisfiable core [2022-03-02 00:20:48,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:20:49,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:49,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:49,197 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:49,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:49,198 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:49,199 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 30 [2022-03-02 00:20:49,236 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:20:49,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:20:49,906 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:49,906 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:49,907 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:50,251 INFO L353 Elim1Store]: treesize reduction 158, result has 65.3 percent of original size [2022-03-02 00:20:50,251 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 3 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 42 case distinctions, treesize of input 50 treesize of output 313 [2022-03-02 00:21:06,696 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,697 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,698 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,699 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,699 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,699 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,700 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,700 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,701 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,702 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,702 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,702 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,703 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,703 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,704 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,704 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,704 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,705 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,706 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,706 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,706 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,707 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,707 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,708 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,708 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,709 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,709 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,710 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,711 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,711 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,714 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,717 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,718 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,719 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,719 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:06,756 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-02 00:21:06,757 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 35 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 10 case distinctions, treesize of input 51 treesize of output 126 [2022-03-02 00:21:07,314 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:21:07,314 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437083459] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:21:07,314 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:21:07,314 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 43 [2022-03-02 00:21:07,314 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510923092] [2022-03-02 00:21:07,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:21:07,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-03-02 00:21:07,315 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:21:07,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-03-02 00:21:07,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1666, Unknown=0, NotChecked=0, Total=1806 [2022-03-02 00:21:07,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:21:07,316 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:21:07,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.255813953488372) internal successors, (97), 43 states have internal predecessors, (97), 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 00:21:07,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-02 00:21:07,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:21:07,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-02 00:21:07,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:21:16,157 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 509 transitions and produced 300 states. [2022-03-02 00:21:16,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-02 00:21:16,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:21:16,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-02 00:21:16,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-02 00:21:16,175 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 00:21:16,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:21:16,372 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:21:16,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:21:16,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1662599294, now seen corresponding path program 5 times [2022-03-02 00:21:16,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:21:16,372 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738196547] [2022-03-02 00:21:16,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:21:16,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:21:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:21:16,846 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:21:16,847 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:21:16,847 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738196547] [2022-03-02 00:21:16,847 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738196547] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:21:16,847 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719001147] [2022-03-02 00:21:16,847 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-02 00:21:16,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:21:16,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:21:16,848 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 00:21:16,853 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 00:21:16,883 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-03-02 00:21:16,883 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:21:16,884 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 57 conjunts are in the unsatisfiable core [2022-03-02 00:21:16,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:21:17,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:17,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:17,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:17,971 INFO L353 Elim1Store]: treesize reduction 216, result has 3.1 percent of original size [2022-03-02 00:21:17,972 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 25 case distinctions, treesize of input 219 treesize of output 106 [2022-03-02 00:21:18,010 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:21:18,011 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:21:19,258 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:19,259 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:19,259 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:19,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:19,264 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:19,264 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:19,264 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:19,265 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:19,267 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:19,268 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:19,270 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:19,276 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:19,277 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:19,280 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:19,283 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:19,604 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-02 00:21:19,604 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 15 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 51 case distinctions, treesize of input 118 treesize of output 581 [2022-03-02 00:27:30,139 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:27:30,140 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719001147] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:27:30,140 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:27:30,140 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 51 [2022-03-02 00:27:30,140 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117325269] [2022-03-02 00:27:30,140 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:27:30,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-03-02 00:27:30,142 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:27:30,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-03-02 00:27:30,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=2358, Unknown=0, NotChecked=0, Total=2550 [2022-03-02 00:27:30,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:27:30,144 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:27:30,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 2.1372549019607843) internal successors, (109), 51 states have internal predecessors, (109), 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 00:27:30,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-02 00:27:30,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:27:30,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-02 00:27:30,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-02 00:27:30,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:27:37,005 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 199 transitions and produced 183 states. [2022-03-02 00:27:37,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-02 00:27:37,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:27:37,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-02 00:27:37,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-02 00:27:37,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-02 00:27:37,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-02 00:27:37,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:27:37,240 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:27:37,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:27:37,240 INFO L85 PathProgramCache]: Analyzing trace with hash 2079005886, now seen corresponding path program 6 times [2022-03-02 00:27:37,240 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:27:37,240 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658047184] [2022-03-02 00:27:37,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:27:37,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:27:37,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:27:37,393 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 36 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:27:37,394 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:27:37,394 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658047184] [2022-03-02 00:27:37,394 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658047184] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:27:37,394 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36702218] [2022-03-02 00:27:37,394 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-02 00:27:37,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:27:37,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:27:37,399 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 00:27:37,400 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 00:27:37,428 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-03-02 00:27:37,428 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:27:37,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 18 conjunts are in the unsatisfiable core [2022-03-02 00:27:37,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:27:37,687 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 49 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:27:37,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:27:38,026 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 49 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:27:38,027 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36702218] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:27:38,027 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:27:38,027 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 48 [2022-03-02 00:27:38,027 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437833949] [2022-03-02 00:27:38,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:27:38,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-03-02 00:27:38,027 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:27:38,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-03-02 00:27:38,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=1850, Unknown=0, NotChecked=0, Total=2256 [2022-03-02 00:27:38,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:27:38,029 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:27:38,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 2.375) internal successors, (114), 48 states have internal predecessors, (114), 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 00:27:38,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-02 00:27:38,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:27:38,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-02 00:27:38,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-02 00:27:38,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-03-02 00:27:38,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:27:39,198 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 247 transitions and produced 232 states. [2022-03-02 00:27:39,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-02 00:27:39,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:27:39,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-02 00:27:39,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-02 00:27:39,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-02 00:27:39,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-02 00:27:39,215 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 00:27:39,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:27:39,399 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:27:39,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:27:39,400 INFO L85 PathProgramCache]: Analyzing trace with hash -713231340, now seen corresponding path program 7 times [2022-03-02 00:27:39,400 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:27:39,400 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346024873] [2022-03-02 00:27:39,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:27:39,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:27:39,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:27:39,612 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 68 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:27:39,612 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:27:39,612 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346024873] [2022-03-02 00:27:39,612 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346024873] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:27:39,612 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662356029] [2022-03-02 00:27:39,612 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-02 00:27:39,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:27:39,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:27:39,613 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:27:39,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-02 00:27:39,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:27:39,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 19 conjunts are in the unsatisfiable core [2022-03-02 00:27:39,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:27:40,038 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 79 proven. 64 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-02 00:27:40,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:27:40,328 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 79 proven. 64 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-02 00:27:40,329 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662356029] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:27:40,329 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:27:40,329 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20, 20] total 50 [2022-03-02 00:27:40,330 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230694271] [2022-03-02 00:27:40,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:27:40,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-03-02 00:27:40,331 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:27:40,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-03-02 00:27:40,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=2053, Unknown=0, NotChecked=0, Total=2450 [2022-03-02 00:27:40,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:27:40,352 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:27:40,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.44) internal successors, (122), 50 states have internal predecessors, (122), 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 00:27:40,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-02 00:27:40,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:27:40,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-02 00:27:40,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-02 00:27:40,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-03-02 00:27:40,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-02 00:27:40,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:27:43,914 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2333 transitions and produced 950 states. [2022-03-02 00:27:43,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-02 00:27:43,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:27:43,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-02 00:27:43,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-02 00:27:43,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-02 00:27:43,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-03-02 00:27:43,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-02 00:27:43,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-02 00:27:44,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-03-02 00:27:44,128 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:27:44,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:27:44,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1346980366, now seen corresponding path program 8 times [2022-03-02 00:27:44,128 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:27:44,128 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743821294] [2022-03-02 00:27:44,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:27:44,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:27:44,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:27:44,361 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 68 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:27:44,361 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:27:44,361 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743821294] [2022-03-02 00:27:44,361 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743821294] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:27:44,361 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313573668] [2022-03-02 00:27:44,361 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 00:27:44,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:27:44,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:27:44,363 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:27:44,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-02 00:27:44,402 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 00:27:44,402 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:27:44,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 21 conjunts are in the unsatisfiable core [2022-03-02 00:27:44,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:27:44,787 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 81 proven. 81 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-02 00:27:44,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:27:45,008 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 81 proven. 81 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-02 00:27:45,008 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313573668] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:27:45,008 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:27:45,008 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 22, 22] total 54 [2022-03-02 00:27:45,010 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988274021] [2022-03-02 00:27:45,010 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:27:45,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-03-02 00:27:45,011 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:27:45,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-03-02 00:27:45,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=469, Invalid=2393, Unknown=0, NotChecked=0, Total=2862 [2022-03-02 00:27:45,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:27:45,012 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:27:45,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 2.388888888888889) internal successors, (129), 54 states have internal predecessors, (129), 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 00:27:45,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-02 00:27:45,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:27:45,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-02 00:27:45,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-02 00:27:45,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-03-02 00:27:45,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 181 states. [2022-03-02 00:27:45,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-02 00:27:45,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:27:45,803 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2344 transitions and produced 961 states. [2022-03-02 00:27:45,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-02 00:27:45,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:27:45,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-02 00:27:45,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-02 00:27:45,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-02 00:27:45,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-03-02 00:27:45,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-02 00:27:45,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-02 00:27:45,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-02 00:27:46,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:27:46,019 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:27:46,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:27:46,020 INFO L85 PathProgramCache]: Analyzing trace with hash -494438320, now seen corresponding path program 9 times [2022-03-02 00:27:46,020 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:27:46,020 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240521419] [2022-03-02 00:27:46,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:27:46,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:27:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:27:46,244 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:27:46,244 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:27:46,244 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240521419] [2022-03-02 00:27:46,244 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240521419] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:27:46,244 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673730277] [2022-03-02 00:27:46,244 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-02 00:27:46,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:27:46,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:27:46,247 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:27:46,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-02 00:27:46,291 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-03-02 00:27:46,292 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:27:46,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 24 conjunts are in the unsatisfiable core [2022-03-02 00:27:46,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:27:46,743 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:27:46,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:27:47,110 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 85 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:27:47,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673730277] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:27:47,111 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:27:47,111 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 66 [2022-03-02 00:27:47,111 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665229761] [2022-03-02 00:27:47,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:27:47,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-03-02 00:27:47,111 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:27:47,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-03-02 00:27:47,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=768, Invalid=3522, Unknown=0, NotChecked=0, Total=4290 [2022-03-02 00:27:47,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:27:47,114 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:27:47,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.227272727272727) internal successors, (147), 66 states have internal predecessors, (147), 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 00:27:47,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-02 00:27:47,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:27:47,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-02 00:27:47,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-02 00:27:47,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-03-02 00:27:47,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 181 states. [2022-03-02 00:27:47,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-02 00:27:47,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-03-02 00:27:47,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:27:47,636 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 452 transitions and produced 340 states. [2022-03-02 00:27:47,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-02 00:27:47,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:27:47,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-02 00:27:47,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-02 00:27:47,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-02 00:27:47,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-03-02 00:27:47,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-02 00:27:47,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-02 00:27:47,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-02 00:27:47,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-02 00:27:47,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-03-02 00:27:47,846 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:27:47,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:27:47,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1540285650, now seen corresponding path program 10 times [2022-03-02 00:27:47,846 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:27:47,846 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437491622] [2022-03-02 00:27:47,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:27:47,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:27:47,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:27:48,942 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:27:48,942 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:27:48,942 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437491622] [2022-03-02 00:27:48,942 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437491622] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:27:48,942 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370388194] [2022-03-02 00:27:48,942 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-02 00:27:48,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:27:48,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:27:48,943 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:27:48,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-02 00:27:48,988 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-02 00:27:48,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:27:48,995 WARN L261 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 98 conjunts are in the unsatisfiable core [2022-03-02 00:27:48,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:27:50,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:50,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:50,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:50,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:50,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:50,991 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:50,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:50,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:50,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:50,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:50,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:50,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:50,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:50,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:50,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:50,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:50,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:51,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:51,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:51,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:51,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:51,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:51,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:51,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:51,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:51,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:51,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:51,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:51,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:51,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:51,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:51,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:51,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:51,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:51,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:51,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:51,012 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:51,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:51,013 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:51,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:51,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:51,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:27:51,015 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 55 disjoint index pairs (out of 91 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 51 [2022-03-02 00:27:51,067 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:27:51,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:27:52,989 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,989 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,990 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,990 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,990 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,991 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,991 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,991 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,991 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,992 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,992 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,992 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,993 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,993 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,993 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,993 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,994 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,994 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,994 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,994 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,995 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,995 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,995 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,996 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,996 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,996 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,996 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,997 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,997 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,997 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,997 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,998 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,998 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,998 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,998 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:52,999 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:27:57,831 INFO L353 Elim1Store]: treesize reduction 866, result has 61.2 percent of original size [2022-03-02 00:27:57,831 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 36 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 195 case distinctions, treesize of input 110 treesize of output 1393 Received shutdown request... [2022-03-02 00:34:57,040 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 [2022-03-02 00:34:57,047 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-03-02 00:34:57,049 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-02 00:34:57,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-02 00:34:57,081 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 00:34:57,081 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 [2022-03-02 00:34:57,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-02 00:34:57,272 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 23ms.. [2022-03-02 00:34:57,273 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-02 00:34:57,273 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-02 00:34:57,273 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-02 00:34:57,277 INFO L732 BasicCegarLoop]: Path program histogram: [10] [2022-03-02 00:34:57,278 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-02 00:34:57,278 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-02 00:34:57,279 INFO L202 PluginConnector]: Adding new model sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.03 12:34:57 BasicIcfg [2022-03-02 00:34:57,279 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-02 00:34:57,280 INFO L158 Benchmark]: Toolchain (without parser) took 862232.12ms. Allocated memory was 182.5MB in the beginning and 690.0MB in the end (delta: 507.5MB). Free memory was 146.6MB in the beginning and 366.2MB in the end (delta: -219.5MB). Peak memory consumption was 473.2MB. Max. memory is 8.0GB. [2022-03-02 00:34:57,280 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.13ms. Allocated memory is still 182.5MB. Free memory is still 147.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-02 00:34:57,280 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.13ms. Allocated memory is still 182.5MB. Free memory was 146.6MB in the beginning and 145.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 00:34:57,280 INFO L158 Benchmark]: Boogie Preprocessor took 11.38ms. Allocated memory is still 182.5MB. Free memory was 145.0MB in the beginning and 144.1MB in the end (delta: 940.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-02 00:34:57,280 INFO L158 Benchmark]: RCFGBuilder took 203.24ms. Allocated memory is still 182.5MB. Free memory was 144.1MB in the beginning and 134.5MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-02 00:34:57,281 INFO L158 Benchmark]: TraceAbstraction took 861995.22ms. Allocated memory was 182.5MB in the beginning and 690.0MB in the end (delta: 507.5MB). Free memory was 134.1MB in the beginning and 366.2MB in the end (delta: -232.1MB). Peak memory consumption was 460.6MB. Max. memory is 8.0GB. [2022-03-02 00:34:57,281 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 0.13ms. Allocated memory is still 182.5MB. Free memory is still 147.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.13ms. Allocated memory is still 182.5MB. Free memory was 146.6MB in the beginning and 145.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.38ms. Allocated memory is still 182.5MB. Free memory was 145.0MB in the beginning and 144.1MB in the end (delta: 940.9kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 203.24ms. Allocated memory is still 182.5MB. Free memory was 144.1MB in the beginning and 134.5MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 861995.22ms. Allocated memory was 182.5MB in the beginning and 690.0MB in the end (delta: 507.5MB). Free memory was 134.1MB in the beginning and 366.2MB in the end (delta: -232.1MB). Peak memory consumption was 460.6MB. 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: 66]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 23ms.. - TimeoutResultAtElement [Line: 59]: 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 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 23ms.. - TimeoutResultAtElement [Line: 59]: 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 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 23ms.. - TimeoutResultAtElement [Line: 60]: 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 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 23ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 861.9s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 30.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 616, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 399.5s InterpolantComputationTime, 792 NumberOfCodeBlocks, 792 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 1161 ConstructedInterpolants, 22 QuantifiedInterpolants, 18436 SizeOfPredicates, 83 NumberOfNonLiveVariables, 1017 ConjunctsInSsa, 251 ConjunctsInUnsatCore, 27 InterpolantComputations, 0 PerfectInterpolantSequences, 871/2193 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