/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-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-09 15:28:10,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 15:28:10,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 15:28:10,686 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-09 15:28:10,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-09 15:28:10,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-09 15:28:10,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-09 15:28:10,695 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-09 15:28:10,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-09 15:28:10,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-09 15:28:10,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-09 15:28:10,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-09 15:28:10,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-09 15:28:10,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-09 15:28:10,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-09 15:28:10,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-09 15:28:10,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-09 15:28:10,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-09 15:28:10,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-09 15:28:10,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-09 15:28:10,704 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-09 15:28:10,710 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-09 15:28:10,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-09 15:28:10,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-09 15:28:10,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-09 15:28:10,722 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-09 15:28:10,722 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-09 15:28:10,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-09 15:28:10,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-09 15:28:10,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-09 15:28:10,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-09 15:28:10,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-09 15:28:10,724 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-09 15:28:10,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-09 15:28:10,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-09 15:28:10,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-09 15:28:10,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-09 15:28:10,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-09 15:28:10,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-09 15:28:10,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-09 15:28:10,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-09 15:28:10,728 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-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf [2022-02-09 15:28:10,748 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 15:28:10,748 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 15:28:10,749 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 15:28:10,749 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 15:28:10,749 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 15:28:10,750 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 15:28:10,750 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 15:28:10,750 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 15:28:10,750 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 15:28:10,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 15:28:10,751 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 15:28:10,751 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 15:28:10,751 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 15:28:10,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 15:28:10,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 15:28:10,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 15:28:10,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 15:28:10,751 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 15:28:10,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 15:28:10,752 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 15:28:10,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 15:28:10,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 15:28:10,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 15:28:10,752 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 15:28:10,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 15:28:10,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 15:28:10,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 15:28:10,753 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-09 15:28:10,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 15:28:10,753 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 15:28:10,753 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 15:28:10,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 15:28:10,754 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 15:28:10,754 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-09 15:28:10,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 15:28:10,754 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-02-09 15:28:10,754 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-02-09 15:28:10,754 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 15:28:10,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 15:28:10,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 15:28:10,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 15:28:10,962 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-09 15:28:10,962 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-09 15:28:10,963 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl [2022-02-09 15:28:10,963 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl' [2022-02-09 15:28:10,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 15:28:10,985 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-09 15:28:10,986 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 15:28:10,986 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 15:28:10,986 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 15:28:10,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:28:10" (1/1) ... [2022-02-09 15:28:10,999 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:28:10" (1/1) ... [2022-02-09 15:28:11,003 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-09 15:28:11,004 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 15:28:11,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 15:28:11,006 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 15:28:11,006 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 15:28:11,011 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:28:10" (1/1) ... [2022-02-09 15:28:11,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:28:10" (1/1) ... [2022-02-09 15:28:11,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:28:10" (1/1) ... [2022-02-09 15:28:11,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:28:10" (1/1) ... [2022-02-09 15:28:11,015 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:28:10" (1/1) ... [2022-02-09 15:28:11,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:28:10" (1/1) ... [2022-02-09 15:28:11,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:28:10" (1/1) ... [2022-02-09 15:28:11,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 15:28:11,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 15:28:11,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 15:28:11,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 15:28:11,021 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:28:10" (1/1) ... [2022-02-09 15:28:11,026 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 15:28:11,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 15:28:11,051 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) [2022-02-09 15:28:11,071 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 [2022-02-09 15:28:11,081 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-09 15:28:11,081 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-09 15:28:11,081 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-09 15:28:11,081 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-09 15:28:11,081 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-09 15:28:11,081 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-09 15:28:11,081 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-09 15:28:11,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 15:28:11,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 15:28:11,082 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-09 15:28:11,082 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-09 15:28:11,082 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-09 15:28:11,083 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-09 15:28:11,116 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 15:28:11,119 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 15:28:11,182 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 15:28:11,191 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 15:28:11,191 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-09 15:28:11,193 INFO L202 PluginConnector]: Adding new model sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 03:28:11 BoogieIcfgContainer [2022-02-09 15:28:11,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 15:28:11,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 15:28:11,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 15:28:11,213 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 15:28:11,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:28:10" (1/2) ... [2022-02-09 15:28:11,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26516716 and model type sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 03:28:11, skipping insertion in model container [2022-02-09 15:28:11,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 03:28:11" (2/2) ... [2022-02-09 15:28:11,215 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-fun-alt.wvr.bpl [2022-02-09 15:28:11,218 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 15:28:11,218 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 15:28:11,218 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 15:28:11,219 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 15:28:11,253 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-09 15:28:11,279 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 15:28:11,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 15:28:11,281 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) [2022-02-09 15:28:11,300 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 [2022-02-09 15:28:11,344 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-09 15:28:11,349 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 [2022-02-09 15:28:11,349 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-09 15:28:11,480 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 15:28:11,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 15:28:11,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1204265674, now seen corresponding path program 1 times [2022-02-09 15:28:11,489 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 15:28:11,489 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168269110] [2022-02-09 15:28:11,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 15:28:11,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 15:28:11,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 15:28:11,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:28:11,597 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 15:28:11,598 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168269110] [2022-02-09 15:28:11,598 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168269110] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 15:28:11,598 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 15:28:11,598 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 15:28:11,599 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219984678] [2022-02-09 15:28:11,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 15:28:11,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 15:28:11,602 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 15:28:11,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 15:28:11,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 15:28:11,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:28:11,662 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 15:28:11,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-02-09 15:28:11,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:28:11,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:28:11,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-09 15:28:11,696 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 15:28:11,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 15:28:11,697 INFO L85 PathProgramCache]: Analyzing trace with hash 2132727720, now seen corresponding path program 1 times [2022-02-09 15:28:11,697 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 15:28:11,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011549531] [2022-02-09 15:28:11,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 15:28:11,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 15:28:11,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 15:28:11,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 15:28:11,773 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 15:28:11,774 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011549531] [2022-02-09 15:28:11,774 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011549531] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 15:28:11,774 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 15:28:11,774 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-09 15:28:11,774 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310283698] [2022-02-09 15:28:11,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 15:28:11,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-09 15:28:11,775 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 15:28:11,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-09 15:28:11,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-09 15:28:11,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:28:11,776 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 15:28:11,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2022-02-09 15:28:11,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:28:11,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:28:11,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:28:11,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 15:28:11,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-09 15:28:11,825 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 15:28:11,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 15:28:11,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1289378822, now seen corresponding path program 1 times [2022-02-09 15:28:11,826 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 15:28:11,826 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611764712] [2022-02-09 15:28:11,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 15:28:11,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 15:28:11,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 15:28:12,067 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:28:12,067 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 15:28:12,067 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611764712] [2022-02-09 15:28:12,068 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611764712] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 15:28:12,069 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503172547] [2022-02-09 15:28:12,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 15:28:12,069 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 15:28:12,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 15:28:12,096 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) [2022-02-09 15:28:12,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-09 15:28:12,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 15:28:12,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 16 conjunts are in the unsatisfiable core [2022-02-09 15:28:12,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 15:28:12,453 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-02-09 15:28:12,454 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 27 [2022-02-09 15:28:12,504 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:28:12,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 15:28:12,598 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 15:28:12,598 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 16 [2022-02-09 15:28:12,611 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 5 [2022-02-09 15:28:12,720 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:28:12,721 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503172547] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 15:28:12,721 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 15:28:12,721 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2022-02-09 15:28:12,721 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106445813] [2022-02-09 15:28:12,721 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 15:28:12,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-09 15:28:12,722 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 15:28:12,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-09 15:28:12,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-02-09 15:28:12,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:28:12,723 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 15:28:12,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.7222222222222223) internal successors, (49), 17 states have internal predecessors, (49), 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) [2022-02-09 15:28:12,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:28:12,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-09 15:28:12,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:28:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:28:12,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 15:28:12,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 15:28:12,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-09 15:28:13,119 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,SelfDestructingSolverStorable2 [2022-02-09 15:28:13,120 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 15:28:13,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 15:28:13,120 INFO L85 PathProgramCache]: Analyzing trace with hash -374345244, now seen corresponding path program 2 times [2022-02-09 15:28:13,121 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 15:28:13,121 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682601746] [2022-02-09 15:28:13,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 15:28:13,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 15:28:13,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 15:28:13,167 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:28:13,167 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 15:28:13,167 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682601746] [2022-02-09 15:28:13,168 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682601746] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 15:28:13,168 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827903235] [2022-02-09 15:28:13,168 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 15:28:13,168 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 15:28:13,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 15:28:13,169 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) [2022-02-09 15:28:13,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-09 15:28:13,194 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 15:28:13,194 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 15:28:13,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-09 15:28:13,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 15:28:13,282 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:28:13,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 15:28:13,374 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:28:13,374 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827903235] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 15:28:13,374 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 15:28:13,374 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-02-09 15:28:13,374 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937032248] [2022-02-09 15:28:13,374 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 15:28:13,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-09 15:28:13,376 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 15:28:13,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-09 15:28:13,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2022-02-09 15:28:13,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:28:13,377 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 15:28:13,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 15 states have internal predecessors, (47), 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) [2022-02-09 15:28:13,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:28:13,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-09 15:28:13,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-09 15:28:13,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:28:13,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:28:13,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 15:28:13,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 15:28:13,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 15:28:13,602 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-09 15:28:13,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 15:28:13,803 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 15:28:13,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 15:28:13,803 INFO L85 PathProgramCache]: Analyzing trace with hash 359763488, now seen corresponding path program 1 times [2022-02-09 15:28:13,803 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 15:28:13,803 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733238619] [2022-02-09 15:28:13,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 15:28:13,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 15:28:13,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 15:28:13,856 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 15:28:13,856 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 15:28:13,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733238619] [2022-02-09 15:28:13,857 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733238619] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 15:28:13,857 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812408304] [2022-02-09 15:28:13,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 15:28:13,857 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 15:28:13,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 15:28:13,858 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) [2022-02-09 15:28:13,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-09 15:28:13,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 15:28:13,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-09 15:28:13,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 15:28:14,020 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 15:28:14,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 15:28:14,102 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 15:28:14,102 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [812408304] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 15:28:14,102 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 15:28:14,102 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2022-02-09 15:28:14,102 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238193858] [2022-02-09 15:28:14,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 15:28:14,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-09 15:28:14,106 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 15:28:14,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-09 15:28:14,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2022-02-09 15:28:14,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:28:14,107 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 15:28:14,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 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) [2022-02-09 15:28:14,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:28:14,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-09 15:28:14,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-09 15:28:14,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-09 15:28:14,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:28:14,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:28:14,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 15:28:14,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 15:28:14,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 15:28:14,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-09 15:28:14,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-09 15:28:14,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 15:28:14,412 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 15:28:14,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 15:28:14,412 INFO L85 PathProgramCache]: Analyzing trace with hash -559233666, now seen corresponding path program 2 times [2022-02-09 15:28:14,412 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 15:28:14,412 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962333895] [2022-02-09 15:28:14,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 15:28:14,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 15:28:14,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 15:28:14,689 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:28:14,689 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 15:28:14,689 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962333895] [2022-02-09 15:28:14,689 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962333895] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 15:28:14,689 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827934749] [2022-02-09 15:28:14,689 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 15:28:14,689 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 15:28:14,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 15:28:14,707 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) [2022-02-09 15:28:14,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-09 15:28:14,735 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 15:28:14,736 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 15:28:14,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 32 conjunts are in the unsatisfiable core [2022-02-09 15:28:14,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 15:28:15,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:28:15,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:28:15,082 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:15,084 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-02-09 15:28:15,118 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:28:15,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 15:28:15,415 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:15,494 INFO L353 Elim1Store]: treesize reduction 38, result has 73.0 percent of original size [2022-02-09 15:28:15,495 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 29 treesize of output 114 [2022-02-09 15:28:16,673 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:16,677 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:16,686 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:16,687 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:16,688 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:16,688 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:16,689 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:16,689 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:16,690 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:16,706 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 15:28:16,707 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 72 [2022-02-09 15:28:16,959 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:28:16,959 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827934749] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 15:28:16,959 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 15:28:16,959 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 30 [2022-02-09 15:28:16,959 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053603817] [2022-02-09 15:28:16,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 15:28:16,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-09 15:28:16,960 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 15:28:16,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-09 15:28:16,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=773, Unknown=0, NotChecked=0, Total=870 [2022-02-09 15:28:16,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:28:16,961 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 15:28:16,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.3333333333333335) internal successors, (70), 30 states have internal predecessors, (70), 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) [2022-02-09 15:28:16,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:28:16,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-09 15:28:16,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-09 15:28:16,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-09 15:28:16,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-09 15:28:16,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:28:18,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:28:18,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 15:28:18,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 15:28:18,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 15:28:18,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-09 15:28:18,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 15:28:18,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-09 15:28:18,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 15:28:18,369 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 15:28:18,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 15:28:18,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1978366790, now seen corresponding path program 3 times [2022-02-09 15:28:18,370 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 15:28:18,370 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922072073] [2022-02-09 15:28:18,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 15:28:18,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 15:28:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 15:28:18,710 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:28:18,710 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 15:28:18,710 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922072073] [2022-02-09 15:28:18,710 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922072073] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 15:28:18,710 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630601743] [2022-02-09 15:28:18,710 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 15:28:18,710 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 15:28:18,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 15:28:18,727 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) [2022-02-09 15:28:18,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-09 15:28:18,766 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-02-09 15:28:18,767 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 15:28:18,767 WARN L261 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 43 conjunts are in the unsatisfiable core [2022-02-09 15:28:18,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 15:28:19,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:28:19,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:28:19,329 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 15:28:19,330 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 36 treesize of output 80 [2022-02-09 15:28:19,511 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:28:19,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 15:28:20,062 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:20,063 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:20,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:28:20,064 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:20,064 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:20,065 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:20,066 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:20,066 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:20,066 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:20,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:28:20,114 INFO L353 Elim1Store]: treesize reduction 20, result has 78.9 percent of original size [2022-02-09 15:28:20,114 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 39 treesize of output 84 [2022-02-09 15:28:20,210 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:20,210 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:20,211 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:20,211 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:20,211 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:20,212 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:20,212 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:20,212 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:20,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:28:20,214 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:20,214 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:20,215 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:20,215 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:20,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:28:20,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:28:20,218 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 3 [2022-02-09 15:28:20,337 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:28:20,337 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630601743] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 15:28:20,338 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 15:28:20,338 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 16] total 38 [2022-02-09 15:28:20,338 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894016032] [2022-02-09 15:28:20,338 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 15:28:20,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-02-09 15:28:20,338 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 15:28:20,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-02-09 15:28:20,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1283, Unknown=0, NotChecked=0, Total=1406 [2022-02-09 15:28:20,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:28:20,339 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 15:28:20,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.210526315789474) internal successors, (84), 38 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 15:28:20,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:28:20,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-09 15:28:20,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-09 15:28:20,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-09 15:28:20,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-09 15:28:20,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 15:28:20,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:28:25,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:28:25,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 15:28:25,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 15:28:25,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 15:28:25,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-09 15:28:25,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 15:28:25,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-09 15:28:25,470 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-09 15:28:25,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 15:28:25,667 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 15:28:25,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 15:28:25,668 INFO L85 PathProgramCache]: Analyzing trace with hash -134951306, now seen corresponding path program 4 times [2022-02-09 15:28:25,668 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 15:28:25,668 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669615304] [2022-02-09 15:28:25,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 15:28:25,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 15:28:25,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 15:28:26,059 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:28:26,059 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 15:28:26,059 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669615304] [2022-02-09 15:28:26,059 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669615304] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 15:28:26,059 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305297067] [2022-02-09 15:28:26,059 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-09 15:28:26,059 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 15:28:26,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 15:28:26,061 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) [2022-02-09 15:28:26,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-09 15:28:26,086 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-09 15:28:26,087 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 15:28:26,087 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2022-02-09 15:28:26,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 15:28:26,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:28:26,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:28:26,655 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:26,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:28:26,656 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:26,657 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2022-02-09 15:28:26,692 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:28:26,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 15:28:27,280 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:27,280 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:27,280 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:27,641 INFO L353 Elim1Store]: treesize reduction 158, result has 65.3 percent of original size [2022-02-09 15:28:27,642 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 3 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 42 case distinctions, treesize of input 49 treesize of output 312 [2022-02-09 15:28:38,559 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,560 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,560 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,561 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,562 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,562 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,563 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,563 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,564 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,565 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,565 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,565 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,566 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,566 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,566 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,567 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,567 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,568 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,569 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,569 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,569 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,570 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,570 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,571 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,572 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,572 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,572 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,573 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,573 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,573 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,574 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,574 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,575 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,576 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,576 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:38,609 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 15:28:38,609 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 35 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 10 case distinctions, treesize of input 50 treesize of output 125 [2022-02-09 15:28:38,968 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:28:38,969 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305297067] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 15:28:38,969 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 15:28:38,969 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 43 [2022-02-09 15:28:38,969 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137421714] [2022-02-09 15:28:38,969 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 15:28:38,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-02-09 15:28:38,970 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 15:28:38,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-02-09 15:28:38,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1666, Unknown=0, NotChecked=0, Total=1806 [2022-02-09 15:28:38,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:28:38,971 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 15:28:38,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.255813953488372) internal successors, (97), 43 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 15:28:38,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:28:38,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-09 15:28:38,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-09 15:28:38,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-09 15:28:38,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-09 15:28:38,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 15:28:38,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-02-09 15:28:38,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:28:45,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:28:45,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 15:28:45,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 15:28:45,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 15:28:45,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-09 15:28:45,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 15:28:45,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-09 15:28:45,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-09 15:28:45,118 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-09 15:28:45,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 15:28:45,301 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 15:28:45,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 15:28:45,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1072806450, now seen corresponding path program 5 times [2022-02-09 15:28:45,301 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 15:28:45,301 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172565117] [2022-02-09 15:28:45,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 15:28:45,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 15:28:45,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 15:28:45,769 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:28:45,769 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 15:28:45,769 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172565117] [2022-02-09 15:28:45,769 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172565117] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 15:28:45,769 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278755047] [2022-02-09 15:28:45,769 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-09 15:28:45,770 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 15:28:45,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 15:28:45,771 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) [2022-02-09 15:28:45,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-09 15:28:45,823 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-02-09 15:28:45,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 15:28:45,825 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 55 conjunts are in the unsatisfiable core [2022-02-09 15:28:45,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 15:28:46,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:28:46,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:28:46,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:28:46,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:28:46,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:28:46,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:28:46,782 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:46,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:28:46,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:28:46,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:28:46,784 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:46,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:28:46,785 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 24 [2022-02-09 15:28:46,821 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:28:46,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 15:28:47,945 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:47,947 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:47,947 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:47,951 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:47,951 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:47,953 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:47,953 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:47,953 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:47,957 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:47,957 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:47,961 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:47,969 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:47,970 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:47,970 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:47,975 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:28:48,372 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 15:28:48,373 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 15 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 51 case distinctions, treesize of input 116 treesize of output 579 [2022-02-09 15:34:22,332 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:34:22,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278755047] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 15:34:22,333 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 15:34:22,333 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 51 [2022-02-09 15:34:22,333 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648447920] [2022-02-09 15:34:22,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 15:34:22,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-02-09 15:34:22,334 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 15:34:22,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-02-09 15:34:22,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=2358, Unknown=0, NotChecked=0, Total=2550 [2022-02-09 15:34:22,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:34:22,335 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 15:34:22,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 2.1372549019607843) internal successors, (109), 51 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 15:34:22,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:34:22,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-09 15:34:22,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-09 15:34:22,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-09 15:34:22,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-09 15:34:22,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 15:34:22,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-02-09 15:34:22,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-09 15:34:22,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:34:29,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:34:29,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 15:34:29,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 15:34:29,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 15:34:29,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-09 15:34:29,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 15:34:29,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-09 15:34:29,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-09 15:34:29,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-09 15:34:29,075 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-02-09 15:34:29,256 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,SelfDestructingSolverStorable8 [2022-02-09 15:34:29,256 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 15:34:29,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 15:34:29,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1746563182, now seen corresponding path program 6 times [2022-02-09 15:34:29,257 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 15:34:29,257 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555341685] [2022-02-09 15:34:29,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 15:34:29,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 15:34:29,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 15:34:29,400 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 36 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:34:29,400 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 15:34:29,400 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555341685] [2022-02-09 15:34:29,401 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555341685] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 15:34:29,401 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724582121] [2022-02-09 15:34:29,401 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-09 15:34:29,401 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 15:34:29,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 15:34:29,412 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) [2022-02-09 15:34:29,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-09 15:34:29,447 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-02-09 15:34:29,447 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 15:34:29,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 18 conjunts are in the unsatisfiable core [2022-02-09 15:34:29,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 15:34:29,725 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 49 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:34:29,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 15:34:29,955 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 49 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:34:29,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724582121] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 15:34:29,955 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 15:34:29,955 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 48 [2022-02-09 15:34:29,955 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236821305] [2022-02-09 15:34:29,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 15:34:29,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-02-09 15:34:29,957 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 15:34:29,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-02-09 15:34:29,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=1850, Unknown=0, NotChecked=0, Total=2256 [2022-02-09 15:34:29,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:34:29,959 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 15:34:29,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 2.375) internal successors, (114), 48 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 15:34:29,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:34:29,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-09 15:34:29,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-09 15:34:29,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-09 15:34:29,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-09 15:34:29,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 15:34:29,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-02-09 15:34:29,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-09 15:34:29,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-02-09 15:34:29,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:34:30,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:34:30,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 15:34:30,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 15:34:30,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 15:34:30,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-09 15:34:30,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 15:34:30,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-09 15:34:30,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-09 15:34:30,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-09 15:34:30,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-09 15:34:30,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-09 15:34:31,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-02-09 15:34:31,113 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 15:34:31,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 15:34:31,113 INFO L85 PathProgramCache]: Analyzing trace with hash 171013700, now seen corresponding path program 7 times [2022-02-09 15:34:31,113 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 15:34:31,113 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528459429] [2022-02-09 15:34:31,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 15:34:31,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 15:34:31,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 15:34:31,347 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 68 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:34:31,348 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 15:34:31,348 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528459429] [2022-02-09 15:34:31,348 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528459429] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 15:34:31,348 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306394504] [2022-02-09 15:34:31,348 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-09 15:34:31,348 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 15:34:31,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 15:34:31,349 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) [2022-02-09 15:34:31,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-09 15:34:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 15:34:31,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 19 conjunts are in the unsatisfiable core [2022-02-09 15:34:31,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 15:34:31,647 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 79 proven. 64 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-09 15:34:31,647 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 15:34:31,842 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 79 proven. 64 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-09 15:34:31,842 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306394504] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 15:34:31,842 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 15:34:31,842 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20, 20] total 50 [2022-02-09 15:34:31,842 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309339299] [2022-02-09 15:34:31,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 15:34:31,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-02-09 15:34:31,843 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 15:34:31,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-02-09 15:34:31,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=2053, Unknown=0, NotChecked=0, Total=2450 [2022-02-09 15:34:31,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:34:31,845 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 15:34:31,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.44) internal successors, (122), 50 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 15:34:31,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:34:31,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-09 15:34:31,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-09 15:34:31,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-09 15:34:31,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-09 15:34:31,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 15:34:31,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-02-09 15:34:31,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-09 15:34:31,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-02-09 15:34:31,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-02-09 15:34:31,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:34:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:34:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 15:34:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 15:34:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 15:34:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-09 15:34:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 15:34:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-09 15:34:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-09 15:34:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-09 15:34:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-09 15:34:32,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-09 15:34:32,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-09 15:34:32,588 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,SelfDestructingSolverStorable10 [2022-02-09 15:34:32,588 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 15:34:32,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 15:34:32,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1990716254, now seen corresponding path program 8 times [2022-02-09 15:34:32,589 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 15:34:32,589 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048530452] [2022-02-09 15:34:32,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 15:34:32,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 15:34:32,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 15:34:32,799 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 68 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:34:32,799 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 15:34:32,799 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048530452] [2022-02-09 15:34:32,800 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048530452] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 15:34:32,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200603254] [2022-02-09 15:34:32,800 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 15:34:32,800 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 15:34:32,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 15:34:32,801 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 15:34:32,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-09 15:34:32,861 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 15:34:32,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 15:34:32,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 21 conjunts are in the unsatisfiable core [2022-02-09 15:34:32,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 15:34:33,237 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 81 proven. 81 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-09 15:34:33,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 15:34:33,498 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 81 proven. 81 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-09 15:34:33,498 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200603254] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 15:34:33,498 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 15:34:33,498 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 22, 22] total 54 [2022-02-09 15:34:33,498 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005922321] [2022-02-09 15:34:33,499 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 15:34:33,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-02-09 15:34:33,499 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 15:34:33,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-02-09 15:34:33,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=469, Invalid=2393, Unknown=0, NotChecked=0, Total=2862 [2022-02-09 15:34:33,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:34:33,500 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 15:34:33,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 2.388888888888889) internal successors, (129), 54 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 15:34:33,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:34:33,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-09 15:34:33,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-09 15:34:33,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-09 15:34:33,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-09 15:34:33,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 15:34:33,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-02-09 15:34:33,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-09 15:34:33,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-02-09 15:34:33,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-02-09 15:34:33,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-09 15:34:33,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:34:34,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:34:34,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 15:34:34,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 15:34:34,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 15:34:34,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-09 15:34:34,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 15:34:34,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-09 15:34:34,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-09 15:34:34,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-09 15:34:34,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-09 15:34:34,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-09 15:34:34,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 15:34:34,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-02-09 15:34:34,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-02-09 15:34:34,399 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 15:34:34,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 15:34:34,400 INFO L85 PathProgramCache]: Analyzing trace with hash -649030784, now seen corresponding path program 9 times [2022-02-09 15:34:34,400 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 15:34:34,400 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227791584] [2022-02-09 15:34:34,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 15:34:34,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 15:34:34,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 15:34:34,623 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:34:34,624 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 15:34:34,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227791584] [2022-02-09 15:34:34,624 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227791584] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 15:34:34,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312910438] [2022-02-09 15:34:34,624 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 15:34:34,624 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 15:34:34,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 15:34:34,625 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 15:34:34,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-09 15:34:34,660 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-02-09 15:34:34,660 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 15:34:34,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 24 conjunts are in the unsatisfiable core [2022-02-09 15:34:34,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 15:34:35,125 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:34:35,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 15:34:35,491 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 85 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:34:35,491 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312910438] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 15:34:35,491 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 15:34:35,491 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 66 [2022-02-09 15:34:35,491 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899200826] [2022-02-09 15:34:35,491 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 15:34:35,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-02-09 15:34:35,492 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 15:34:35,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-02-09 15:34:35,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=768, Invalid=3522, Unknown=0, NotChecked=0, Total=4290 [2022-02-09 15:34:35,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:34:35,493 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 15:34:35,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.227272727272727) internal successors, (147), 66 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 15:34:35,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:34:35,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-09 15:34:35,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-09 15:34:35,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-09 15:34:35,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-09 15:34:35,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 15:34:35,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-02-09 15:34:35,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-09 15:34:35,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-02-09 15:34:35,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-02-09 15:34:35,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-09 15:34:35,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 15:34:35,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:34:36,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:34:36,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 15:34:36,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 15:34:36,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 15:34:36,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-09 15:34:36,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 15:34:36,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-09 15:34:36,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-09 15:34:36,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-09 15:34:36,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-09 15:34:36,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-09 15:34:36,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 15:34:36,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-09 15:34:36,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-09 15:34:36,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-02-09 15:34:36,334 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 15:34:36,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 15:34:36,334 INFO L85 PathProgramCache]: Analyzing trace with hash 220517086, now seen corresponding path program 10 times [2022-02-09 15:34:36,334 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 15:34:36,334 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921669277] [2022-02-09 15:34:36,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 15:34:36,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 15:34:36,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 15:34:37,363 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:34:37,363 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 15:34:37,363 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921669277] [2022-02-09 15:34:37,363 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921669277] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 15:34:37,363 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502338559] [2022-02-09 15:34:37,364 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-09 15:34:37,364 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 15:34:37,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 15:34:37,365 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 15:34:37,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-02-09 15:34:37,399 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-09 15:34:37,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 15:34:37,400 WARN L261 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 96 conjunts are in the unsatisfiable core [2022-02-09 15:34:37,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 15:34:39,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,157 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:39,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,167 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:39,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,170 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:39,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:34:39,174 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 55 disjoint index pairs (out of 91 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 43 [2022-02-09 15:34:39,208 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:34:39,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 15:34:40,341 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,342 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,342 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,342 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,342 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,343 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,343 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,343 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,343 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,343 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,344 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,344 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,344 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,344 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,344 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,345 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,345 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,345 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,346 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,346 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,346 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,346 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,347 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,347 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,347 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,348 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,348 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,348 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,349 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,349 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,349 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,349 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,349 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,350 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,350 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:40,350 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:34:45,314 INFO L353 Elim1Store]: treesize reduction 914, result has 60.5 percent of original size [2022-02-09 15:34:45,315 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 36 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 195 case distinctions, treesize of input 113 treesize of output 1428 Received shutdown request... [2022-02-09 15:42:34,659 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 [2022-02-09 15:42:34,667 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-09 15:42:34,673 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-02-09 15:42:34,674 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 [2022-02-09 15:42:34,674 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-02-09 15:42:34,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-02-09 15:42:34,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-02-09 15:42:34,880 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 38ms.. [2022-02-09 15:42:34,881 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-09 15:42:34,881 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-09 15:42:34,881 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-09 15:42:34,888 INFO L732 BasicCegarLoop]: Path program histogram: [10, 2, 1, 1] [2022-02-09 15:42:34,889 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-09 15:42:34,889 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-09 15:42:34,892 INFO L202 PluginConnector]: Adding new model sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 03:42:34 BasicIcfg [2022-02-09 15:42:34,892 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-09 15:42:34,893 INFO L158 Benchmark]: Toolchain (without parser) took 863907.28ms. Allocated memory was 209.7MB in the beginning and 833.6MB in the end (delta: 623.9MB). Free memory was 174.4MB in the beginning and 312.5MB in the end (delta: -138.1MB). Peak memory consumption was 532.6MB. Max. memory is 8.0GB. [2022-02-09 15:42:34,894 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 209.7MB. Free memory is still 175.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 15:42:34,894 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.58ms. Allocated memory is still 209.7MB. Free memory was 174.4MB in the beginning and 172.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 15:42:34,894 INFO L158 Benchmark]: Boogie Preprocessor took 14.27ms. Allocated memory is still 209.7MB. Free memory was 172.9MB in the beginning and 171.8MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 15:42:34,894 INFO L158 Benchmark]: RCFGBuilder took 172.63ms. Allocated memory is still 209.7MB. Free memory was 171.8MB in the beginning and 162.4MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-09 15:42:34,894 INFO L158 Benchmark]: TraceAbstraction took 863698.47ms. Allocated memory was 209.7MB in the beginning and 833.6MB in the end (delta: 623.9MB). Free memory was 162.0MB in the beginning and 312.5MB in the end (delta: -150.5MB). Peak memory consumption was 521.0MB. Max. memory is 8.0GB. [2022-02-09 15:42:34,898 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 209.7MB. Free memory is still 175.6MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.58ms. Allocated memory is still 209.7MB. Free memory was 174.4MB in the beginning and 172.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.27ms. Allocated memory is still 209.7MB. Free memory was 172.9MB in the beginning and 171.8MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 172.63ms. Allocated memory is still 209.7MB. Free memory was 171.8MB in the beginning and 162.4MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 863698.47ms. Allocated memory was 209.7MB in the beginning and 833.6MB in the end (delta: 623.9MB). Free memory was 162.0MB in the beginning and 312.5MB in the end (delta: -150.5MB). Peak memory consumption was 521.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3990, positive: 3256, positive conditional: 2964, positive unconditional: 292, negative: 734, negative conditional: 734, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3256, positive: 3256, positive conditional: 2964, positive unconditional: 292, 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: 3256, positive: 3256, positive conditional: 2964, positive unconditional: 292, 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: 3256, positive: 3256, positive conditional: 2854, positive unconditional: 402, 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: 3256, positive: 3256, positive conditional: 2760, positive unconditional: 496, 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: 3256, positive: 3256, positive conditional: 2760, positive unconditional: 496, 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: 280, positive: 280, positive conditional: 0, positive unconditional: 280, 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: 280, positive: 277, positive conditional: 0, positive unconditional: 277, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 53, positive: 53, positive conditional: 0, positive unconditional: 53, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3256, positive: 2976, positive conditional: 2760, positive unconditional: 216, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 280, unknown conditional: 0, unknown unconditional: 280] , Statistics on independence cache: Total cache size (in pairs): 280, Positive cache size: 280, Positive conditional cache size: 0, Positive unconditional cache size: 280, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 94, Maximal queried relation: 0, Independence queries for same thread: 734 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 21, Number of trivial persistent sets: 12, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 292, positive: 292, positive conditional: 0, positive unconditional: 292, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3990, positive: 3256, positive conditional: 2964, positive unconditional: 292, negative: 734, negative conditional: 734, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3256, positive: 3256, positive conditional: 2964, positive unconditional: 292, 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: 3256, positive: 3256, positive conditional: 2964, positive unconditional: 292, 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: 3256, positive: 3256, positive conditional: 2854, positive unconditional: 402, 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: 3256, positive: 3256, positive conditional: 2760, positive unconditional: 496, 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: 3256, positive: 3256, positive conditional: 2760, positive unconditional: 496, 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: 280, positive: 280, positive conditional: 0, positive unconditional: 280, 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: 280, positive: 277, positive conditional: 0, positive unconditional: 277, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 53, positive: 53, positive conditional: 0, positive unconditional: 53, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3256, positive: 2976, positive conditional: 2760, positive unconditional: 216, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 280, unknown conditional: 0, unknown unconditional: 280] , Statistics on independence cache: Total cache size (in pairs): 280, Positive cache size: 280, Positive conditional cache size: 0, Positive unconditional cache size: 280, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 94, Maximal queried relation: 0, Independence queries for same thread: 734 - 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: 65]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 38ms.. - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 38ms.. - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 38ms.. - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 38ms.. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 863.6s, OverallIterations: 14, TraceHistogramMax: 0, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 22.7s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 481, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 359.2s InterpolantComputationTime, 914 NumberOfCodeBlocks, 914 NumberOfCodeBlocksAsserted, 55 NumberOfCheckSat, 1317 ConstructedInterpolants, 22 QuantifiedInterpolants, 19903 SizeOfPredicates, 101 NumberOfNonLiveVariables, 1106 ConjunctsInSsa, 290 ConjunctsInUnsatCore, 35 InterpolantComputations, 2 PerfectInterpolantSequences, 849/2197 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