/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-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/figure1.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-19 22:49:34,647 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-19 22:49:34,648 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-19 22:49:34,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-19 22:49:34,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-19 22:49:34,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-19 22:49:34,676 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-19 22:49:34,677 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-19 22:49:34,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-19 22:49:34,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-19 22:49:34,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-19 22:49:34,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-19 22:49:34,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-19 22:49:34,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-19 22:49:34,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-19 22:49:34,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-19 22:49:34,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-19 22:49:34,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-19 22:49:34,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-19 22:49:34,693 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-19 22:49:34,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-19 22:49:34,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-19 22:49:34,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-19 22:49:34,699 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-19 22:49:34,701 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-19 22:49:34,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-19 22:49:34,708 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-19 22:49:34,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-19 22:49:34,709 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-wrwc.epf [2022-02-19 22:49:34,723 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-19 22:49:34,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-19 22:49:34,724 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-19 22:49:34,724 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-19 22:49:34,724 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-19 22:49:34,724 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-19 22:49:34,725 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-19 22:49:34,725 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-19 22:49:34,725 INFO L138 SettingsManager]: * Use SBE=true [2022-02-19 22:49:34,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-19 22:49:34,725 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-19 22:49:34,725 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-19 22:49:34,725 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-19 22:49:34,725 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-19 22:49:34,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-19 22:49:34,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-19 22:49:34,726 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-19 22:49:34,726 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-19 22:49:34,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-19 22:49:34,726 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-19 22:49:34,726 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-19 22:49:34,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-19 22:49:34,727 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-19 22:49:34,727 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-19 22:49:34,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-19 22:49:34,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 22:49:34,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-19 22:49:34,728 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-19 22:49:34,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-19 22:49:34,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-19 22:49:34,728 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-19 22:49:34,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-19 22:49:34,729 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-19 22:49:34,729 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-19 22:49:34,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-19 22:49:34,729 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-19 22:49:34,729 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-02-19 22:49:34,729 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-19 22:49:34,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-19 22:49:34,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-19 22:49:34,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-19 22:49:34,930 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-19 22:49:34,930 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-19 22:49:34,931 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/figure1.wvr.bpl [2022-02-19 22:49:34,931 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/figure1.wvr.bpl' [2022-02-19 22:49:34,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-19 22:49:34,951 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-19 22:49:34,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-19 22:49:34,952 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-19 22:49:34,952 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-19 22:49:34,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:49:34" (1/1) ... [2022-02-19 22:49:34,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:49:34" (1/1) ... [2022-02-19 22:49:34,969 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-19 22:49:34,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-19 22:49:34,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-19 22:49:34,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-19 22:49:34,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-19 22:49:34,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:49:34" (1/1) ... [2022-02-19 22:49:34,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:49:34" (1/1) ... [2022-02-19 22:49:34,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:49:34" (1/1) ... [2022-02-19 22:49:34,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:49:34" (1/1) ... [2022-02-19 22:49:34,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:49:34" (1/1) ... [2022-02-19 22:49:34,985 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:49:34" (1/1) ... [2022-02-19 22:49:34,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:49:34" (1/1) ... [2022-02-19 22:49:34,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-19 22:49:34,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-19 22:49:34,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-19 22:49:34,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-19 22:49:34,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:49:34" (1/1) ... [2022-02-19 22:49:34,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 22:49:35,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:49:35,041 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) [2022-02-19 22:49:35,059 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 [2022-02-19 22:49:35,069 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-19 22:49:35,069 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-19 22:49:35,069 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-19 22:49:35,070 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-19 22:49:35,070 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-19 22:49:35,070 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-19 22:49:35,070 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-19 22:49:35,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-19 22:49:35,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-19 22:49:35,070 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-19 22:49:35,105 INFO L234 CfgBuilder]: Building ICFG [2022-02-19 22:49:35,106 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-19 22:49:35,173 INFO L275 CfgBuilder]: Performing block encoding [2022-02-19 22:49:35,183 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-19 22:49:35,183 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-19 22:49:35,184 INFO L202 PluginConnector]: Adding new model figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:49:35 BoogieIcfgContainer [2022-02-19 22:49:35,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-19 22:49:35,186 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-19 22:49:35,186 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-19 22:49:35,205 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-19 22:49:35,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:49:34" (1/2) ... [2022-02-19 22:49:35,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60505df and model type figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 10:49:35, skipping insertion in model container [2022-02-19 22:49:35,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:49:35" (2/2) ... [2022-02-19 22:49:35,207 INFO L111 eAbstractionObserver]: Analyzing ICFG figure1.wvr.bpl [2022-02-19 22:49:35,211 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-19 22:49:35,211 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-19 22:49:35,211 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-19 22:49:35,211 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-19 22:49:35,249 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-19 22:49:35,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-19 22:49:35,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:49:35,283 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) [2022-02-19 22:49:35,284 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 [2022-02-19 22:49:35,315 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-19 22:49:35,320 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=false [2022-02-19 22:49:35,320 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-19 22:49:35,406 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 116 transitions and produced 104 states. [2022-02-19 22:49:35,408 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 22:49:35,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:49:35,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1103111855, now seen corresponding path program 1 times [2022-02-19 22:49:35,417 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:49:35,417 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52641118] [2022-02-19 22:49:35,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:49:35,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:49:35,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:49:35,800 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 49 proven. 34 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 22:49:35,800 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:49:35,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52641118] [2022-02-19 22:49:35,801 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52641118] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:49:35,801 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293394958] [2022-02-19 22:49:35,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:49:35,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:49:35,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:49:35,803 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) [2022-02-19 22:49:35,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-19 22:49:35,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:49:35,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 17 conjunts are in the unsatisfiable core [2022-02-19 22:49:35,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:49:36,398 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 8 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:49:36,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 22:49:36,775 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 10 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:49:36,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293394958] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 22:49:36,776 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 22:49:36,776 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 17, 17] total 42 [2022-02-19 22:49:36,778 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357755003] [2022-02-19 22:49:36,778 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 22:49:36,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-02-19 22:49:36,781 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:49:36,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-02-19 22:49:36,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=410, Invalid=1396, Unknown=0, NotChecked=0, Total=1806 [2022-02-19 22:49:36,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:49:36,805 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:49:36,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.395348837209302) internal successors, (103), 42 states have internal predecessors, (103), 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) [2022-02-19 22:49:36,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:49:37,571 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 128 transitions and produced 110 states. [2022-02-19 22:49:37,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-19 22:49:37,602 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-19 22:49:37,802 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 [2022-02-19 22:49:37,803 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 22:49:37,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:49:37,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1343260965, now seen corresponding path program 2 times [2022-02-19 22:49:37,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:49:37,804 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547665185] [2022-02-19 22:49:37,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:49:37,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:49:37,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:49:37,918 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 81 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:49:37,919 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:49:37,919 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547665185] [2022-02-19 22:49:37,919 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547665185] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:49:37,919 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387643630] [2022-02-19 22:49:37,919 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 22:49:37,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:49:37,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:49:37,921 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) [2022-02-19 22:49:37,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-19 22:49:37,982 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 22:49:37,982 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 22:49:37,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 18 conjunts are in the unsatisfiable core [2022-02-19 22:49:37,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:49:38,080 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 81 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:49:38,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 22:49:38,161 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 81 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:49:38,161 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387643630] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 22:49:38,162 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 22:49:38,162 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2022-02-19 22:49:38,162 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030752755] [2022-02-19 22:49:38,162 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 22:49:38,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-19 22:49:38,164 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:49:38,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-19 22:49:38,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-02-19 22:49:38,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:49:38,166 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:49:38,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 11 states have internal predecessors, (48), 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) [2022-02-19 22:49:38,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-19 22:49:38,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:49:38,388 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 239 transitions and produced 192 states. [2022-02-19 22:49:38,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-19 22:49:38,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-19 22:49:38,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-19 22:49:38,605 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 [2022-02-19 22:49:38,605 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 22:49:38,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:49:38,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1072708653, now seen corresponding path program 3 times [2022-02-19 22:49:38,606 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:49:38,606 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818637146] [2022-02-19 22:49:38,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:49:38,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:49:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:49:39,048 INFO L134 CoverageAnalysis]: Checked inductivity of 585 backedges. 418 proven. 155 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-02-19 22:49:39,049 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:49:39,049 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818637146] [2022-02-19 22:49:39,049 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818637146] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:49:39,052 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017597587] [2022-02-19 22:49:39,052 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-19 22:49:39,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:49:39,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:49:39,068 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) [2022-02-19 22:49:39,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-19 22:49:39,128 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2022-02-19 22:49:39,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 22:49:39,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 37 conjunts are in the unsatisfiable core [2022-02-19 22:49:39,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:49:40,227 INFO L134 CoverageAnalysis]: Checked inductivity of 585 backedges. 91 proven. 494 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:49:40,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 22:49:41,075 INFO L134 CoverageAnalysis]: Checked inductivity of 585 backedges. 93 proven. 492 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:49:41,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017597587] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 22:49:41,075 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 22:49:41,076 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 37, 37] total 97 [2022-02-19 22:49:41,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405468626] [2022-02-19 22:49:41,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 22:49:41,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-02-19 22:49:41,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:49:41,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-02-19 22:49:41,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2100, Invalid=7406, Unknown=0, NotChecked=0, Total=9506 [2022-02-19 22:49:41,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:49:41,080 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:49:41,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 2.2142857142857144) internal successors, (217), 97 states have internal predecessors, (217), 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) [2022-02-19 22:49:41,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-02-19 22:49:41,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-19 22:49:41,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:49:43,417 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 284 transitions and produced 230 states. [2022-02-19 22:49:43,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-19 22:49:43,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-19 22:49:43,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-02-19 22:49:43,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-19 22:49:43,618 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 [2022-02-19 22:49:43,618 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 22:49:43,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:49:43,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1094444121, now seen corresponding path program 4 times [2022-02-19 22:49:43,619 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:49:43,619 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603739204] [2022-02-19 22:49:43,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:49:43,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:49:43,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:49:43,903 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 484 proven. 441 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:49:43,903 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:49:43,903 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603739204] [2022-02-19 22:49:43,903 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603739204] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:49:43,903 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081658666] [2022-02-19 22:49:43,903 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-19 22:49:43,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:49:43,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:49:43,904 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) [2022-02-19 22:49:43,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-19 22:49:43,947 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-19 22:49:43,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 22:49:43,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 44 conjunts are in the unsatisfiable core [2022-02-19 22:49:43,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:49:44,114 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 484 proven. 441 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:49:44,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 22:49:44,261 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 484 proven. 441 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:49:44,261 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081658666] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 22:49:44,261 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 22:49:44,261 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 24 [2022-02-19 22:49:44,262 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974368038] [2022-02-19 22:49:44,262 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 22:49:44,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-02-19 22:49:44,262 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:49:44,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-02-19 22:49:44,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-02-19 22:49:44,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:49:44,263 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:49:44,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.166666666666667) internal successors, (100), 24 states have internal predecessors, (100), 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) [2022-02-19 22:49:44,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-02-19 22:49:44,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-19 22:49:44,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2022-02-19 22:49:44,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:49:44,990 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 513 transitions and produced 384 states. [2022-02-19 22:49:44,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-19 22:49:44,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-19 22:49:44,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-02-19 22:49:44,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-19 22:49:45,007 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-02-19 22:49:45,207 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 [2022-02-19 22:49:45,207 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 22:49:45,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:49:45,208 INFO L85 PathProgramCache]: Analyzing trace with hash 343724073, now seen corresponding path program 5 times [2022-02-19 22:49:45,208 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:49:45,208 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135733773] [2022-02-19 22:49:45,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:49:45,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:49:45,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:49:46,574 INFO L134 CoverageAnalysis]: Checked inductivity of 3145 backedges. 2339 proven. 780 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-02-19 22:49:46,575 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:49:46,575 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135733773] [2022-02-19 22:49:46,575 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135733773] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:49:46,575 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139754127] [2022-02-19 22:49:46,575 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-19 22:49:46,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:49:46,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:49:46,577 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) [2022-02-19 22:49:46,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-19 22:49:46,670 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 48 check-sat command(s) [2022-02-19 22:49:46,670 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 22:49:46,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 81 conjunts are in the unsatisfiable core [2022-02-19 22:49:46,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:49:50,418 INFO L134 CoverageAnalysis]: Checked inductivity of 3145 backedges. 508 proven. 2637 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:49:50,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 22:49:53,840 INFO L134 CoverageAnalysis]: Checked inductivity of 3145 backedges. 510 proven. 2635 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:49:53,840 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139754127] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 22:49:53,840 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 22:49:53,841 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 81, 81] total 215 [2022-02-19 22:49:53,841 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191357624] [2022-02-19 22:49:53,841 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 22:49:53,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 216 states [2022-02-19 22:49:53,842 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:49:53,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 216 interpolants. [2022-02-19 22:49:53,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9537, Invalid=36903, Unknown=0, NotChecked=0, Total=46440 [2022-02-19 22:49:53,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:49:53,854 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:49:53,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 216 states, 216 states have (on average 2.162037037037037) internal successors, (467), 215 states have internal predecessors, (467), 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) [2022-02-19 22:49:53,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-02-19 22:49:53,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-19 22:49:53,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-02-19 22:49:53,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-19 22:49:53,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:50:05,010 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 608 transitions and produced 476 states. [2022-02-19 22:50:05,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-19 22:50:05,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-19 22:50:05,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-02-19 22:50:05,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-19 22:50:05,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2022-02-19 22:50:05,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-19 22:50:05,217 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 [2022-02-19 22:50:05,218 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 22:50:05,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:50:05,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1329686981, now seen corresponding path program 6 times [2022-02-19 22:50:05,218 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:50:05,218 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489392990] [2022-02-19 22:50:05,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:50:05,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:50:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:50:06,317 INFO L134 CoverageAnalysis]: Checked inductivity of 4705 backedges. 2401 proven. 2304 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:50:06,317 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:50:06,317 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489392990] [2022-02-19 22:50:06,317 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489392990] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:50:06,317 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685415085] [2022-02-19 22:50:06,317 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-19 22:50:06,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:50:06,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:50:06,321 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) [2022-02-19 22:50:06,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-19 22:50:06,444 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 50 check-sat command(s) [2022-02-19 22:50:06,444 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 22:50:06,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 98 conjunts are in the unsatisfiable core [2022-02-19 22:50:06,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:50:06,919 INFO L134 CoverageAnalysis]: Checked inductivity of 4705 backedges. 2401 proven. 2304 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:50:06,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 22:50:07,286 INFO L134 CoverageAnalysis]: Checked inductivity of 4705 backedges. 2401 proven. 2304 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:50:07,287 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685415085] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 22:50:07,287 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 22:50:07,287 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51, 51] total 51 [2022-02-19 22:50:07,287 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005459587] [2022-02-19 22:50:07,287 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 22:50:07,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-02-19 22:50:07,288 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:50:07,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-02-19 22:50:07,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2022-02-19 22:50:07,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:50:07,289 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:50:07,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 4.078431372549019) internal successors, (208), 51 states have internal predecessors, (208), 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) [2022-02-19 22:50:07,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-02-19 22:50:07,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-19 22:50:07,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-02-19 22:50:07,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-19 22:50:07,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 155 states. [2022-02-19 22:50:07,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:50:10,775 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1125 transitions and produced 806 states. [2022-02-19 22:50:10,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-19 22:50:10,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-19 22:50:10,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-02-19 22:50:10,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-19 22:50:10,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 220 states. [2022-02-19 22:50:10,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-19 22:50:10,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-19 22:50:10,991 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 [2022-02-19 22:50:10,991 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 22:50:10,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:50:10,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1839752855, now seen corresponding path program 7 times [2022-02-19 22:50:10,992 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:50:10,992 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267290721] [2022-02-19 22:50:10,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:50:10,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:50:11,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:50:15,924 INFO L134 CoverageAnalysis]: Checked inductivity of 16237 backedges. 12474 proven. 3703 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-19 22:50:15,925 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:50:15,925 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267290721] [2022-02-19 22:50:15,925 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267290721] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:50:15,925 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380727666] [2022-02-19 22:50:15,925 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-19 22:50:15,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:50:15,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:50:15,926 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) [2022-02-19 22:50:15,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-19 22:50:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:50:16,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 179 conjunts are in the unsatisfiable core [2022-02-19 22:50:16,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:50:29,328 INFO L134 CoverageAnalysis]: Checked inductivity of 16237 backedges. 2459 proven. 13778 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:50:29,328 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 22:50:39,560 INFO L134 CoverageAnalysis]: Checked inductivity of 16237 backedges. 2461 proven. 13776 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:50:39,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380727666] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 22:50:39,561 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 22:50:39,561 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [120, 179, 179] total 475 [2022-02-19 22:50:39,561 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683711846] [2022-02-19 22:50:39,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 22:50:39,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 476 states [2022-02-19 22:50:39,562 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:50:39,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 476 interpolants. [2022-02-19 22:50:39,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45820, Invalid=180280, Unknown=0, NotChecked=0, Total=226100 [2022-02-19 22:50:39,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:50:39,586 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:50:39,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 476 states, 476 states have (on average 2.1449579831932772) internal successors, (1021), 475 states have internal predecessors, (1021), 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) [2022-02-19 22:50:39,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-02-19 22:50:39,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-19 22:50:39,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-02-19 22:50:39,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-19 22:50:39,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 220 states. [2022-02-19 22:50:39,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-02-19 22:50:39,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:51:39,957 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1340 transitions and produced 1032 states. [2022-02-19 22:51:39,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-19 22:51:39,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-19 22:51:39,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-02-19 22:51:39,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-19 22:51:39,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 220 states. [2022-02-19 22:51:39,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-19 22:51:39,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 345 states. [2022-02-19 22:51:39,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-19 22:51:40,174 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 [2022-02-19 22:51:40,176 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 22:51:40,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:51:40,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1101239737, now seen corresponding path program 8 times [2022-02-19 22:51:40,177 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:51:40,177 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264149648] [2022-02-19 22:51:40,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:51:40,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:51:40,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:51:44,368 INFO L134 CoverageAnalysis]: Checked inductivity of 23981 backedges. 12100 proven. 11881 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:51:44,368 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:51:44,368 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264149648] [2022-02-19 22:51:44,368 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264149648] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:51:44,368 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991266798] [2022-02-19 22:51:44,368 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 22:51:44,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:51:44,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:51:44,370 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) [2022-02-19 22:51:44,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-19 22:51:44,556 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 22:51:44,557 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 22:51:44,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 220 conjunts are in the unsatisfiable core [2022-02-19 22:51:44,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:51:45,321 INFO L134 CoverageAnalysis]: Checked inductivity of 23981 backedges. 12100 proven. 11881 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:51:45,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 22:51:46,114 INFO L134 CoverageAnalysis]: Checked inductivity of 23981 backedges. 12100 proven. 11881 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:51:46,115 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991266798] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 22:51:46,115 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 22:51:46,115 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [112, 112, 112] total 112 [2022-02-19 22:51:46,115 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123848156] [2022-02-19 22:51:46,115 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 22:51:46,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 112 states [2022-02-19 22:51:46,116 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:51:46,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2022-02-19 22:51:46,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6216, Invalid=6216, Unknown=0, NotChecked=0, Total=12432 [2022-02-19 22:51:46,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:51:46,118 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:51:46,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 112 states, 112 states have (on average 4.035714285714286) internal successors, (452), 112 states have internal predecessors, (452), 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) [2022-02-19 22:51:46,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-02-19 22:51:46,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-19 22:51:46,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-02-19 22:51:46,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-19 22:51:46,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 220 states. [2022-02-19 22:51:46,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-02-19 22:51:46,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 345 states. [2022-02-19 22:51:46,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:52:14,175 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2475 transitions and produced 1738 states. [2022-02-19 22:52:14,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-19 22:52:14,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-19 22:52:14,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-02-19 22:52:14,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-19 22:52:14,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 220 states. [2022-02-19 22:52:14,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-19 22:52:14,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 490 states. [2022-02-19 22:52:14,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-02-19 22:52:14,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-19 22:52:14,382 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 [2022-02-19 22:52:14,385 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 22:52:14,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:52:14,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1577302843, now seen corresponding path program 9 times [2022-02-19 22:52:14,385 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:52:14,385 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809820216] [2022-02-19 22:52:14,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:52:14,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:52:15,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:52:31,613 INFO L134 CoverageAnalysis]: Checked inductivity of 81145 backedges. 63337 proven. 17674 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2022-02-19 22:52:31,615 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:52:31,615 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809820216] [2022-02-19 22:52:31,615 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809820216] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:52:31,616 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197970304] [2022-02-19 22:52:31,616 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-19 22:52:31,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:52:31,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:52:31,632 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) [2022-02-19 22:52:31,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-19 22:52:33,119 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 239 check-sat command(s) [2022-02-19 22:52:33,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 22:52:33,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 2130 conjuncts, 395 conjunts are in the unsatisfiable core [2022-02-19 22:52:33,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:53:20,154 INFO L134 CoverageAnalysis]: Checked inductivity of 81145 backedges. 12232 proven. 68913 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:53:20,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 22:54:11,956 INFO L134 CoverageAnalysis]: Checked inductivity of 81145 backedges. 12234 proven. 68911 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:54:11,957 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197970304] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 22:54:11,957 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 22:54:11,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [262, 395, 395] total 1049 [2022-02-19 22:54:11,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649647729] [2022-02-19 22:54:11,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 22:54:11,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 1050 states [2022-02-19 22:54:11,961 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:54:11,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 1050 interpolants. [2022-02-19 22:54:12,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223004, Invalid=878446, Unknown=0, NotChecked=0, Total=1101450 [2022-02-19 22:54:12,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:54:12,141 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:54:12,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 1050 states, 1050 states have (on average 2.136190476190476) internal successors, (2243), 1049 states have internal predecessors, (2243), 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) [2022-02-19 22:54:12,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-02-19 22:54:12,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-19 22:54:12,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-02-19 22:54:12,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-19 22:54:12,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 220 states. [2022-02-19 22:54:12,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-02-19 22:54:12,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 490 states. [2022-02-19 22:54:12,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2022-02-19 22:54:12,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-02-19 23:03:43,080 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 [2022-02-19 23:03:43,081 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 [2022-02-19 23:03:43,081 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-19 23:03:43,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-19 23:03:43,315 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 [2022-02-19 23:03:43,316 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 1782 known predicates. [2022-02-19 23:03:43,317 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-02-19 23:03:43,318 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-19 23:03:43,318 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-19 23:03:43,322 INFO L732 BasicCegarLoop]: Path program histogram: [9] [2022-02-19 23:03:43,324 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-19 23:03:43,324 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-19 23:03:43,325 INFO L202 PluginConnector]: Adding new model figure1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 11:03:43 BasicIcfg [2022-02-19 23:03:43,325 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-19 23:03:43,325 INFO L158 Benchmark]: Toolchain (without parser) took 848374.79ms. Allocated memory was 211.8MB in the beginning and 3.3GB in the end (delta: 3.0GB). Free memory was 170.0MB in the beginning and 2.3GB in the end (delta: -2.1GB). Peak memory consumption was 902.2MB. Max. memory is 8.0GB. [2022-02-19 23:03:43,328 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 211.8MB. Free memory is still 171.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-19 23:03:43,328 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.48ms. Allocated memory is still 211.8MB. Free memory was 170.0MB in the beginning and 168.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-19 23:03:43,329 INFO L158 Benchmark]: Boogie Preprocessor took 12.77ms. Allocated memory is still 211.8MB. Free memory was 168.4MB in the beginning and 167.6MB in the end (delta: 881.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-19 23:03:43,329 INFO L158 Benchmark]: RCFGBuilder took 197.79ms. Allocated memory is still 211.8MB. Free memory was 167.4MB in the beginning and 158.7MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-02-19 23:03:43,329 INFO L158 Benchmark]: TraceAbstraction took 848139.41ms. Allocated memory was 211.8MB in the beginning and 3.3GB in the end (delta: 3.0GB). Free memory was 158.1MB in the beginning and 2.3GB in the end (delta: -2.2GB). Peak memory consumption was 889.6MB. Max. memory is 8.0GB. [2022-02-19 23:03:43,330 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 211.8MB. Free memory is still 171.1MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.48ms. Allocated memory is still 211.8MB. Free memory was 170.0MB in the beginning and 168.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 12.77ms. Allocated memory is still 211.8MB. Free memory was 168.4MB in the beginning and 167.6MB in the end (delta: 881.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 197.79ms. Allocated memory is still 211.8MB. Free memory was 167.4MB in the beginning and 158.7MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 848139.41ms. Allocated memory was 211.8MB in the beginning and 3.3GB in the end (delta: 3.0GB). Free memory was 158.1MB in the beginning and 2.3GB in the end (delta: -2.2GB). Peak memory consumption was 889.6MB. 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: 50]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 1782 known predicates. - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 1782 known predicates. - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 1782 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 31 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 848.0s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 678.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 1780, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 3.8s SatisfiabilityAnalysisTime, 163.1s InterpolantComputationTime, 4512 NumberOfCodeBlocks, 4512 NumberOfCodeBlocksAsserted, 375 NumberOfCheckSat, 6741 ConstructedInterpolants, 0 QuantifiedInterpolants, 49955 SizeOfPredicates, 35 NumberOfNonLiveVariables, 6026 ConjunctsInSsa, 1089 ConjunctsInUnsatCore, 27 InterpolantComputations, 0 PerfectInterpolantSequences, 154659/392871 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