/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/figure1-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 22:15:16,621 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 22:15:16,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 22:15:16,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 22:15:16,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 22:15:16,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 22:15:16,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 22:15:16,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 22:15:16,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 22:15:16,693 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 22:15:16,693 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 22:15:16,694 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 22:15:16,695 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 22:15:16,696 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 22:15:16,697 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 22:15:16,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 22:15:16,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 22:15:16,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 22:15:16,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 22:15:16,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 22:15:16,707 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 22:15:16,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 22:15:16,709 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 22:15:16,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 22:15:16,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 22:15:16,722 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 22:15:16,723 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 22:15:16,724 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 22:15:16,725 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf [2022-03-16 22:15:16,740 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 22:15:16,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 22:15:16,741 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 22:15:16,741 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 22:15:16,741 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 22:15:16,741 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 22:15:16,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 22:15:16,742 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 22:15:16,742 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 22:15:16,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 22:15:16,742 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 22:15:16,743 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 22:15:16,743 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 22:15:16,743 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 22:15:16,743 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 22:15:16,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 22:15:16,743 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 22:15:16,743 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 22:15:16,743 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 22:15:16,743 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 22:15:16,744 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 22:15:16,744 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 22:15:16,744 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 22:15:16,744 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 22:15:16,744 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 22:15:16,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 22:15:16,744 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 22:15:16,744 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 22:15:16,744 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 22:15:16,745 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 22:15:16,745 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 22:15:16,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 22:15:16,745 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 22:15:16,745 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 22:15:16,745 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 22:15:16,745 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-16 22:15:16,745 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 22:15:16,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 22:15:16,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 22:15:16,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 22:15:16,928 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-16 22:15:16,930 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-16 22:15:16,931 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/figure1-alt.wvr.bpl [2022-03-16 22:15:16,931 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/figure1-alt.wvr.bpl' [2022-03-16 22:15:16,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 22:15:16,949 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-16 22:15:16,949 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 22:15:16,949 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 22:15:16,949 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 22:15:16,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:15:16" (1/1) ... [2022-03-16 22:15:16,970 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:15:16" (1/1) ... [2022-03-16 22:15:16,984 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-16 22:15:16,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 22:15:16,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 22:15:16,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 22:15:16,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 22:15:16,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:15:16" (1/1) ... [2022-03-16 22:15:16,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:15:16" (1/1) ... [2022-03-16 22:15:16,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:15:16" (1/1) ... [2022-03-16 22:15:16,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:15:16" (1/1) ... [2022-03-16 22:15:16,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:15:16" (1/1) ... [2022-03-16 22:15:16,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:15:16" (1/1) ... [2022-03-16 22:15:16,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:15:16" (1/1) ... [2022-03-16 22:15:16,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 22:15:16,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 22:15:16,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 22:15:16,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 22:15:17,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:15:16" (1/1) ... [2022-03-16 22:15:17,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 22:15:17,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:15:17,028 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-16 22:15:17,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-16 22:15:17,053 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-16 22:15:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 22:15:17,053 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 22:15:17,053 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-16 22:15:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 22:15:17,053 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 22:15:17,054 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-16 22:15:17,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 22:15:17,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 22:15:17,054 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-16 22:15:17,090 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 22:15:17,091 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 22:15:17,146 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 22:15:17,157 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 22:15:17,157 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 22:15:17,159 INFO L202 PluginConnector]: Adding new model figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 10:15:17 BoogieIcfgContainer [2022-03-16 22:15:17,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 22:15:17,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 22:15:17,160 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 22:15:17,168 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 22:15:17,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:15:16" (1/2) ... [2022-03-16 22:15:17,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ed7b92d and model type figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 10:15:17, skipping insertion in model container [2022-03-16 22:15:17,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 10:15:17" (2/2) ... [2022-03-16 22:15:17,169 INFO L111 eAbstractionObserver]: Analyzing ICFG figure1-alt.wvr.bpl [2022-03-16 22:15:17,173 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 22:15:17,173 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 22:15:17,173 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 22:15:17,173 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 22:15:17,203 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-16 22:15:17,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 22:15:17,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:15:17,248 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-16 22:15:17,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-16 22:15:17,283 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 22:15:17,288 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-16 22:15:17,288 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-16 22:15:17,463 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 125 transitions and produced 113 states. [2022-03-16 22:15:17,465 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 22:15:17,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:15:17,471 INFO L85 PathProgramCache]: Analyzing trace with hash 109189364, now seen corresponding path program 1 times [2022-03-16 22:15:17,478 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:15:17,479 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466208410] [2022-03-16 22:15:17,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:15:17,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:15:17,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:15:18,060 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2022-03-16 22:15:18,061 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:15:18,061 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466208410] [2022-03-16 22:15:18,061 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466208410] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:15:18,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833416124] [2022-03-16 22:15:18,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:15:18,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:15:18,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:15:18,066 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 22:15:18,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-16 22:15:18,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:15:18,136 WARN L261 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 81 conjunts are in the unsatisfiable core [2022-03-16 22:15:18,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:15:19,163 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:15:19,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:15:19,534 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2022-03-16 22:15:19,534 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833416124] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:15:19,534 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:15:19,535 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 26, 10] total 38 [2022-03-16 22:15:19,536 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481871058] [2022-03-16 22:15:19,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:15:19,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-03-16 22:15:19,541 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:15:19,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-03-16 22:15:19,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=1345, Unknown=0, NotChecked=0, Total=1482 [2022-03-16 22:15:19,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:15:19,558 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:15:19,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 2.051282051282051) internal successors, (80), 38 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 22:15:19,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:15:21,139 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 174 transitions and produced 160 states. [2022-03-16 22:15:21,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-16 22:15:21,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-16 22:15:21,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-16 22:15:21,360 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 22:15:21,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:15:21,360 INFO L85 PathProgramCache]: Analyzing trace with hash 626780528, now seen corresponding path program 2 times [2022-03-16 22:15:21,361 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:15:21,361 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635007493] [2022-03-16 22:15:21,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:15:21,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:15:21,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:15:21,631 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-03-16 22:15:21,631 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:15:21,631 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635007493] [2022-03-16 22:15:21,632 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635007493] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:15:21,632 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947545054] [2022-03-16 22:15:21,632 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 22:15:21,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:15:21,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:15:21,633 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 22:15:21,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-16 22:15:21,664 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 22:15:21,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:15:21,666 WARN L261 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 81 conjunts are in the unsatisfiable core [2022-03-16 22:15:21,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:15:22,468 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 234 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:15:22,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:15:22,839 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-03-16 22:15:22,839 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947545054] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:15:22,840 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:15:22,840 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 26, 10] total 39 [2022-03-16 22:15:22,840 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722458175] [2022-03-16 22:15:22,841 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:15:22,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-03-16 22:15:22,843 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:15:22,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-03-16 22:15:22,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1408, Unknown=0, NotChecked=0, Total=1560 [2022-03-16 22:15:22,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:15:22,846 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:15:22,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.025) internal successors, (81), 39 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 22:15:22,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-03-16 22:15:22,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:15:24,729 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 452 transitions and produced 411 states. [2022-03-16 22:15:24,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-16 22:15:24,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-16 22:15:24,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-16 22:15:24,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:15:24,948 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 22:15:24,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:15:24,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1574286278, now seen corresponding path program 3 times [2022-03-16 22:15:24,949 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:15:24,949 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217073191] [2022-03-16 22:15:24,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:15:24,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:15:24,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:15:25,237 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 0 proven. 263 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2022-03-16 22:15:25,237 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:15:25,238 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217073191] [2022-03-16 22:15:25,238 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217073191] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:15:25,238 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231282754] [2022-03-16 22:15:25,238 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 22:15:25,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:15:25,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:15:25,240 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 22:15:25,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-16 22:15:25,290 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 26 check-sat command(s) [2022-03-16 22:15:25,291 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:15:25,293 WARN L261 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 125 conjunts are in the unsatisfiable core [2022-03-16 22:15:25,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:15:26,581 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 0 proven. 641 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:15:26,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:15:27,004 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 12 proven. 251 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2022-03-16 22:15:27,004 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231282754] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:15:27,004 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:15:27,005 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 37, 10] total 49 [2022-03-16 22:15:27,005 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675337692] [2022-03-16 22:15:27,005 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:15:27,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-03-16 22:15:27,005 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:15:27,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-03-16 22:15:27,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=2272, Unknown=0, NotChecked=0, Total=2450 [2022-03-16 22:15:27,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:15:27,007 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:15:27,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.12) internal successors, (106), 49 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 22:15:27,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-03-16 22:15:27,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-03-16 22:15:27,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:15:30,430 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 512 transitions and produced 469 states. [2022-03-16 22:15:30,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-16 22:15:30,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-16 22:15:30,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-03-16 22:15:30,450 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-16 22:15:30,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:15:30,633 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 22:15:30,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:15:30,634 INFO L85 PathProgramCache]: Analyzing trace with hash -237342744, now seen corresponding path program 4 times [2022-03-16 22:15:30,635 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:15:30,635 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734855698] [2022-03-16 22:15:30,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:15:30,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:15:30,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:15:30,856 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-03-16 22:15:30,857 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:15:30,857 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734855698] [2022-03-16 22:15:30,857 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734855698] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:15:30,857 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942108918] [2022-03-16 22:15:30,857 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 22:15:30,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:15:30,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:15:30,858 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 22:15:30,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-16 22:15:30,910 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 22:15:30,910 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:15:30,913 WARN L261 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 125 conjunts are in the unsatisfiable core [2022-03-16 22:15:30,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:15:32,106 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 0 proven. 641 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:15:32,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:15:32,559 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-03-16 22:15:32,560 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942108918] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:15:32,560 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:15:32,560 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 37, 10] total 50 [2022-03-16 22:15:32,560 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058862493] [2022-03-16 22:15:32,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:15:32,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-03-16 22:15:32,561 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:15:32,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-03-16 22:15:32,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=2363, Unknown=0, NotChecked=0, Total=2550 [2022-03-16 22:15:32,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:15:32,562 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:15:32,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 2.0392156862745097) internal successors, (104), 50 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 22:15:32,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-03-16 22:15:32,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-03-16 22:15:32,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-03-16 22:15:32,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:15:36,307 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 602 transitions and produced 553 states. [2022-03-16 22:15:36,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-16 22:15:36,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-16 22:15:36,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-03-16 22:15:36,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-03-16 22:15:36,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-16 22:15:36,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:15:36,510 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 22:15:36,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:15:36,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1507044170, now seen corresponding path program 5 times [2022-03-16 22:15:36,511 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:15:36,511 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32244560] [2022-03-16 22:15:36,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:15:36,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:15:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:15:36,744 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked. [2022-03-16 22:15:36,744 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:15:36,744 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32244560] [2022-03-16 22:15:36,745 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32244560] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:15:36,745 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921741290] [2022-03-16 22:15:36,745 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 22:15:36,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:15:36,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:15:36,746 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 22:15:36,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-16 22:15:36,788 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 28 check-sat command(s) [2022-03-16 22:15:36,788 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:15:36,797 WARN L261 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 133 conjunts are in the unsatisfiable core [2022-03-16 22:15:36,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:15:37,983 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 0 proven. 745 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:15:37,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:15:38,406 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked. [2022-03-16 22:15:38,406 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921741290] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:15:38,406 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:15:38,406 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 39, 10] total 52 [2022-03-16 22:15:38,406 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484629680] [2022-03-16 22:15:38,406 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:15:38,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-03-16 22:15:38,407 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:15:38,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-03-16 22:15:38,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=2553, Unknown=0, NotChecked=0, Total=2756 [2022-03-16 22:15:38,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:15:38,408 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:15:38,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 2.018867924528302) internal successors, (107), 52 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 22:15:38,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-03-16 22:15:38,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-03-16 22:15:38,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-03-16 22:15:38,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-03-16 22:15:38,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:15:43,358 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1349 transitions and produced 1214 states. [2022-03-16 22:15:43,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-16 22:15:43,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-16 22:15:43,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-03-16 22:15:43,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-03-16 22:15:43,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-03-16 22:15:43,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-16 22:15:43,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:15:43,577 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 22:15:43,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:15:43,577 INFO L85 PathProgramCache]: Analyzing trace with hash -478703944, now seen corresponding path program 6 times [2022-03-16 22:15:43,577 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:15:43,577 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174690920] [2022-03-16 22:15:43,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:15:43,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:15:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:15:43,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1256 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 1139 trivial. 0 not checked. [2022-03-16 22:15:43,828 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:15:43,828 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174690920] [2022-03-16 22:15:43,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174690920] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:15:43,828 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66246765] [2022-03-16 22:15:43,828 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 22:15:43,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:15:43,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:15:43,829 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 22:15:43,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-16 22:15:43,892 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 35 check-sat command(s) [2022-03-16 22:15:43,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:15:43,895 WARN L261 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 185 conjunts are in the unsatisfiable core [2022-03-16 22:15:43,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:15:45,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1256 backedges. 0 proven. 1256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:15:45,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:15:46,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1256 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 1139 trivial. 0 not checked. [2022-03-16 22:15:46,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [66246765] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:15:46,425 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:15:46,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 52, 10] total 65 [2022-03-16 22:15:46,425 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100434299] [2022-03-16 22:15:46,425 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:15:46,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-03-16 22:15:46,427 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:15:46,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-03-16 22:15:46,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=4044, Unknown=0, NotChecked=0, Total=4290 [2022-03-16 22:15:46,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:15:46,428 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:15:46,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.0454545454545454) internal successors, (135), 65 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 22:15:46,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-03-16 22:15:46,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-03-16 22:15:46,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-03-16 22:15:46,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-03-16 22:15:46,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2022-03-16 22:15:46,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:15:52,171 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2157 transitions and produced 1901 states. [2022-03-16 22:15:52,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-16 22:15:52,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-16 22:15:52,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-03-16 22:15:52,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-03-16 22:15:52,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-03-16 22:15:52,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-03-16 22:15:52,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-16 22:15:52,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:15:52,389 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 22:15:52,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:15:52,389 INFO L85 PathProgramCache]: Analyzing trace with hash 562522196, now seen corresponding path program 7 times [2022-03-16 22:15:52,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:15:52,390 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262175625] [2022-03-16 22:15:52,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:15:52,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:15:52,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:15:52,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1856 backedges. 0 proven. 178 refuted. 0 times theorem prover too weak. 1678 trivial. 0 not checked. [2022-03-16 22:15:52,693 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:15:52,693 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262175625] [2022-03-16 22:15:52,693 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262175625] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:15:52,694 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649888664] [2022-03-16 22:15:52,694 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-16 22:15:52,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:15:52,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:15:52,695 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 22:15:52,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-16 22:15:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:15:52,747 WARN L261 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 233 conjunts are in the unsatisfiable core [2022-03-16 22:15:52,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:15:55,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1856 backedges. 0 proven. 1856 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:15:55,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:15:55,742 INFO L134 CoverageAnalysis]: Checked inductivity of 1856 backedges. 0 proven. 178 refuted. 0 times theorem prover too weak. 1678 trivial. 0 not checked. [2022-03-16 22:15:55,742 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649888664] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:15:55,742 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:15:55,743 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 64, 10] total 77 [2022-03-16 22:15:55,743 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292175416] [2022-03-16 22:15:55,743 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:15:55,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2022-03-16 22:15:55,743 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:15:55,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2022-03-16 22:15:55,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=291, Invalid=5715, Unknown=0, NotChecked=0, Total=6006 [2022-03-16 22:15:55,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:15:55,745 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:15:55,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 2.051282051282051) internal successors, (160), 77 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 22:15:55,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-03-16 22:15:55,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-03-16 22:15:55,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-03-16 22:15:55,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-03-16 22:15:55,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2022-03-16 22:15:55,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-03-16 22:15:55,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:17:29,693 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 88584 transitions and produced 69414 states. [2022-03-16 22:17:29,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2022-03-16 22:17:29,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2022-03-16 22:17:29,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 235 states. [2022-03-16 22:17:29,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 241 states. [2022-03-16 22:17:29,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 245 states. [2022-03-16 22:17:29,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 255 states. [2022-03-16 22:17:29,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 456 states. [2022-03-16 22:17:29,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-16 22:17:29,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-03-16 22:17:29,895 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 22:17:29,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:17:29,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1997397608, now seen corresponding path program 1 times [2022-03-16 22:17:29,895 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:17:29,895 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50609557] [2022-03-16 22:17:29,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:17:29,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:17:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:17:29,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:17:29,964 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:17:29,964 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50609557] [2022-03-16 22:17:29,964 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50609557] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 22:17:29,965 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 22:17:29,965 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-16 22:17:29,965 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751149542] [2022-03-16 22:17:29,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 22:17:29,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-16 22:17:29,965 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:17:29,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-16 22:17:29,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-03-16 22:17:29,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:17:29,966 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:17:29,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 22:17:29,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 139 states. [2022-03-16 22:17:29,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 140 states. [2022-03-16 22:17:29,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 235 states. [2022-03-16 22:17:29,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 241 states. [2022-03-16 22:17:29,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 245 states. [2022-03-16 22:17:29,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 255 states. [2022-03-16 22:17:29,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 456 states. [2022-03-16 22:17:29,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:17:59,674 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 210387 transitions and produced 165283 states. [2022-03-16 22:17:59,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2022-03-16 22:17:59,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-03-16 22:17:59,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 237 states. [2022-03-16 22:17:59,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 241 states. [2022-03-16 22:17:59,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 245 states. [2022-03-16 22:17:59,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 256 states. [2022-03-16 22:17:59,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 457 states. [2022-03-16 22:17:59,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 22:17:59,677 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-16 22:17:59,677 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-16 22:17:59,677 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-16 22:17:59,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-16 22:17:59,682 INFO L732 BasicCegarLoop]: Path program histogram: [7, 1] [2022-03-16 22:17:59,683 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 22:17:59,683 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 22:17:59,684 INFO L202 PluginConnector]: Adding new model figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 10:17:59 BasicIcfg [2022-03-16 22:17:59,684 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 22:17:59,685 INFO L158 Benchmark]: Toolchain (without parser) took 162736.05ms. Allocated memory was 180.4MB in the beginning and 5.8GB in the end (delta: 5.6GB). Free memory was 140.2MB in the beginning and 2.6GB in the end (delta: -2.5GB). Peak memory consumption was 3.9GB. Max. memory is 8.0GB. [2022-03-16 22:17:59,685 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 180.4MB. Free memory is still 141.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 22:17:59,685 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.25ms. Allocated memory is still 180.4MB. Free memory was 140.1MB in the beginning and 138.6MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-16 22:17:59,685 INFO L158 Benchmark]: Boogie Preprocessor took 11.68ms. Allocated memory is still 180.4MB. Free memory was 138.6MB in the beginning and 137.7MB in the end (delta: 883.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 22:17:59,685 INFO L158 Benchmark]: RCFGBuilder took 160.03ms. Allocated memory is still 180.4MB. Free memory was 137.6MB in the beginning and 128.8MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-16 22:17:59,686 INFO L158 Benchmark]: TraceAbstraction took 162524.50ms. Allocated memory was 180.4MB in the beginning and 5.8GB in the end (delta: 5.6GB). Free memory was 128.3MB in the beginning and 2.6GB in the end (delta: -2.5GB). Peak memory consumption was 3.9GB. Max. memory is 8.0GB. [2022-03-16 22:17:59,686 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 0.10ms. Allocated memory is still 180.4MB. Free memory is still 141.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.25ms. Allocated memory is still 180.4MB. Free memory was 140.1MB in the beginning and 138.6MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.68ms. Allocated memory is still 180.4MB. Free memory was 138.6MB in the beginning and 137.7MB in the end (delta: 883.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 160.03ms. Allocated memory is still 180.4MB. Free memory was 137.6MB in the beginning and 128.8MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 162524.50ms. Allocated memory was 180.4MB in the beginning and 5.8GB in the end (delta: 5.6GB). Free memory was 128.3MB in the beginning and 2.6GB in the end (delta: -2.5GB). Peak memory consumption was 3.9GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 51]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 32 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 162.4s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 145.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 1728, 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, 0.4s SatisfiabilityAnalysisTime, 15.0s InterpolantComputationTime, 1125 NumberOfCodeBlocks, 1125 NumberOfCodeBlocksAsserted, 102 NumberOfCheckSat, 1658 ConstructedInterpolants, 0 QuantifiedInterpolants, 20511 SizeOfPredicates, 63 NumberOfNonLiveVariables, 1368 ConjunctsInSsa, 963 ConjunctsInUnsatCore, 22 InterpolantComputations, 1 PerfectInterpolantSequences, 9268/16659 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-16 22:17:59,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-03-16 22:17:59,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...