/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-02 00:19:13,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-02 00:19:13,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-02 00:19:13,316 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-02 00:19:13,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-02 00:19:13,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-02 00:19:13,318 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-02 00:19:13,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-02 00:19:13,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-02 00:19:13,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-02 00:19:13,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-02 00:19:13,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-02 00:19:13,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-02 00:19:13,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-02 00:19:13,324 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-02 00:19:13,325 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-02 00:19:13,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-02 00:19:13,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-02 00:19:13,327 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-02 00:19:13,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-02 00:19:13,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-02 00:19:13,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-02 00:19:13,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-02 00:19:13,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-02 00:19:13,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-02 00:19:13,333 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-02 00:19:13,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-02 00:19:13,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-02 00:19:13,334 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-02 00:19:13,335 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-02 00:19:13,335 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-02 00:19:13,335 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-02 00:19:13,336 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-02 00:19:13,336 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-02 00:19:13,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-02 00:19:13,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-02 00:19:13,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-02 00:19:13,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-02 00:19:13,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-02 00:19:13,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-02 00:19:13,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-02 00:19:13,340 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-03-02 00:19:13,357 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-02 00:19:13,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-02 00:19:13,357 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-02 00:19:13,358 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-02 00:19:13,358 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-02 00:19:13,358 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-02 00:19:13,359 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-02 00:19:13,359 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-02 00:19:13,359 INFO L138 SettingsManager]: * Use SBE=true [2022-03-02 00:19:13,359 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-02 00:19:13,359 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-02 00:19:13,359 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-02 00:19:13,359 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-02 00:19:13,360 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-02 00:19:13,360 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-02 00:19:13,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-02 00:19:13,360 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-02 00:19:13,360 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-02 00:19:13,360 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-02 00:19:13,360 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-02 00:19:13,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-02 00:19:13,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-02 00:19:13,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-02 00:19:13,360 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-02 00:19:13,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-02 00:19:13,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 00:19:13,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-02 00:19:13,361 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-02 00:19:13,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-02 00:19:13,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-02 00:19:13,361 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-02 00:19:13,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-02 00:19:13,361 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-02 00:19:13,361 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-02 00:19:13,361 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-02 00:19:13,362 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-02 00:19:13,362 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-02 00:19:13,362 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-02 00:19:13,362 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-02 00:19:13,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-02 00:19:13,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-02 00:19:13,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-02 00:19:13,600 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-02 00:19:13,601 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-02 00:19:13,602 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array.wvr.bpl [2022-03-02 00:19:13,602 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array.wvr.bpl' [2022-03-02 00:19:13,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-02 00:19:13,620 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-02 00:19:13,627 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-02 00:19:13,627 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-02 00:19:13,627 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-02 00:19:13,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:19:13" (1/1) ... [2022-03-02 00:19:13,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:19:13" (1/1) ... [2022-03-02 00:19:13,647 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-02 00:19:13,648 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-02 00:19:13,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-02 00:19:13,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-02 00:19:13,649 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-02 00:19:13,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:19:13" (1/1) ... [2022-03-02 00:19:13,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:19:13" (1/1) ... [2022-03-02 00:19:13,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:19:13" (1/1) ... [2022-03-02 00:19:13,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:19:13" (1/1) ... [2022-03-02 00:19:13,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:19:13" (1/1) ... [2022-03-02 00:19:13,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:19:13" (1/1) ... [2022-03-02 00:19:13,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:19:13" (1/1) ... [2022-03-02 00:19:13,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-02 00:19:13,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-02 00:19:13,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-02 00:19:13,661 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-02 00:19:13,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:19:13" (1/1) ... [2022-03-02 00:19:13,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 00:19:13,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:19:13,694 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-02 00:19:13,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-02 00:19:13,750 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-02 00:19:13,750 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-02 00:19:13,751 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-02 00:19:13,751 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-02 00:19:13,751 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-02 00:19:13,751 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-02 00:19:13,751 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-02 00:19:13,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-02 00:19:13,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-02 00:19:13,751 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-02 00:19:13,752 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-02 00:19:13,752 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-02 00:19:13,753 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-02 00:19:13,791 INFO L234 CfgBuilder]: Building ICFG [2022-03-02 00:19:13,793 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-02 00:19:13,905 INFO L275 CfgBuilder]: Performing block encoding [2022-03-02 00:19:13,915 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-02 00:19:13,915 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-02 00:19:13,917 INFO L202 PluginConnector]: Adding new model sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 12:19:13 BoogieIcfgContainer [2022-03-02 00:19:13,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-02 00:19:13,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-02 00:19:13,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-02 00:19:13,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-02 00:19:13,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:19:13" (1/2) ... [2022-03-02 00:19:13,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18206ab3 and model type sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.03 12:19:13, skipping insertion in model container [2022-03-02 00:19:13,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 12:19:13" (2/2) ... [2022-03-02 00:19:13,926 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-array.wvr.bpl [2022-03-02 00:19:13,929 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-02 00:19:13,930 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-02 00:19:13,930 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-02 00:19:13,930 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-02 00:19:13,968 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-02 00:19:14,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-02 00:19:14,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:19:14,034 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-02 00:19:14,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-02 00:19:14,060 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-02 00:19:14,065 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-03-02 00:19:14,066 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-02 00:19:14,413 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1682 transitions and produced 636 states. [2022-03-02 00:19:14,414 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:19:14,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:19:14,421 INFO L85 PathProgramCache]: Analyzing trace with hash -189379526, now seen corresponding path program 1 times [2022-03-02 00:19:14,427 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:19:14,427 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129006381] [2022-03-02 00:19:14,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:19:14,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:19:14,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:19:14,856 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 22 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:19:14,856 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:19:14,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129006381] [2022-03-02 00:19:14,857 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129006381] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:19:14,857 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180961329] [2022-03-02 00:19:14,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:19:14,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:19:14,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:19:14,859 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:19:14,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-02 00:19:14,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:19:14,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-02 00:19:14,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:19:15,102 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-02 00:19:15,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:19:15,289 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-02 00:19:15,290 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180961329] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:19:15,290 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:19:15,290 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 8] total 23 [2022-03-02 00:19:15,292 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306529182] [2022-03-02 00:19:15,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:19:15,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-02 00:19:15,297 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:19:15,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-02 00:19:15,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-03-02 00:19:15,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:19:15,320 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:19:15,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 00:19:15,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:19:15,771 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1693 transitions and produced 647 states. [2022-03-02 00:19:15,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:19:15,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-02 00:19:15,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-02 00:19:15,980 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:19:15,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:19:15,980 INFO L85 PathProgramCache]: Analyzing trace with hash 420505112, now seen corresponding path program 2 times [2022-03-02 00:19:15,981 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:19:15,981 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878696686] [2022-03-02 00:19:15,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:19:15,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:19:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:19:16,073 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 21 proven. 14 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-02 00:19:16,073 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:19:16,073 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878696686] [2022-03-02 00:19:16,074 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878696686] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:19:16,074 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550145667] [2022-03-02 00:19:16,074 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 00:19:16,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:19:16,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:19:16,075 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:19:16,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-02 00:19:16,106 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 00:19:16,106 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:19:16,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-02 00:19:16,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:19:16,239 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-02 00:19:16,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:19:16,368 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-02 00:19:16,369 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550145667] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:19:16,369 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:19:16,369 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 23 [2022-03-02 00:19:16,369 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673481776] [2022-03-02 00:19:16,369 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:19:16,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-02 00:19:16,370 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:19:16,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-02 00:19:16,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2022-03-02 00:19:16,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:19:16,371 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:19:16,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 23 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 00:19:16,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:19:16,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:19:16,940 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1704 transitions and produced 658 states. [2022-03-02 00:19:16,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:19:16,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:19:16,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-02 00:19:17,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:19:17,157 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:19:17,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:19:17,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1890877322, now seen corresponding path program 3 times [2022-03-02 00:19:17,158 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:19:17,158 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188481332] [2022-03-02 00:19:17,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:19:17,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:19:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:19:17,306 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 22 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:19:17,306 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:19:17,307 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188481332] [2022-03-02 00:19:17,307 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188481332] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:19:17,307 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191124672] [2022-03-02 00:19:17,307 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-02 00:19:17,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:19:17,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:19:17,313 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:19:17,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-02 00:19:17,344 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-03-02 00:19:17,345 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:19:17,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 12 conjunts are in the unsatisfiable core [2022-03-02 00:19:17,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:19:17,576 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 11 proven. 31 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-02 00:19:17,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:19:17,802 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 26 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-02 00:19:17,803 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191124672] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:19:17,803 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:19:17,804 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 13] total 35 [2022-03-02 00:19:17,804 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106566504] [2022-03-02 00:19:17,804 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:19:17,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-03-02 00:19:17,805 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:19:17,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-03-02 00:19:17,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=974, Unknown=0, NotChecked=0, Total=1190 [2022-03-02 00:19:17,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:19:17,807 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:19:17,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.5428571428571427) internal successors, (89), 35 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 00:19:17,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:19:17,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:19:17,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:19:18,171 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 237 transitions and produced 184 states. [2022-03-02 00:19:18,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:19:18,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:19:18,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:19:18,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-02 00:19:18,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:19:18,379 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:19:18,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:19:18,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1663662932, now seen corresponding path program 4 times [2022-03-02 00:19:18,380 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:19:18,380 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227328561] [2022-03-02 00:19:18,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:19:18,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:19:18,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:19:18,518 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 22 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:19:18,518 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:19:18,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227328561] [2022-03-02 00:19:18,519 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227328561] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:19:18,519 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1622666516] [2022-03-02 00:19:18,519 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-02 00:19:18,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:19:18,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:19:18,520 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:19:18,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-02 00:19:18,553 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-02 00:19:18,553 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:19:18,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 13 conjunts are in the unsatisfiable core [2022-03-02 00:19:18,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:19:18,807 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 30 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-02 00:19:18,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:19:19,009 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 30 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-02 00:19:19,010 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1622666516] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:19:19,010 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:19:19,010 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14, 14] total 35 [2022-03-02 00:19:19,010 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797011633] [2022-03-02 00:19:19,010 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:19:19,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-03-02 00:19:19,011 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:19:19,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-03-02 00:19:19,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=994, Unknown=0, NotChecked=0, Total=1190 [2022-03-02 00:19:19,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:19:19,012 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:19:19,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.657142857142857) internal successors, (93), 35 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 00:19:19,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:19:19,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:19:19,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:19:19,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:19:19,619 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1726 transitions and produced 680 states. [2022-03-02 00:19:19,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:19:19,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:19:19,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:19:19,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:19:19,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-02 00:19:19,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:19:19,839 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:19:19,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:19:19,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1217120590, now seen corresponding path program 5 times [2022-03-02 00:19:19,840 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:19:19,840 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113418220] [2022-03-02 00:19:19,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:19:19,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:19:19,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:19:19,972 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 22 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:19:19,973 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:19:19,973 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113418220] [2022-03-02 00:19:19,973 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113418220] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:19:19,973 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039636012] [2022-03-02 00:19:19,973 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-02 00:19:19,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:19:19,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:19:19,975 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:19:19,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-02 00:19:20,007 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-03-02 00:19:20,007 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:19:20,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 17 conjunts are in the unsatisfiable core [2022-03-02 00:19:20,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:19:20,289 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 22 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:19:20,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:19:20,644 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 34 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:19:20,645 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039636012] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:19:20,645 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:19:20,645 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 47 [2022-03-02 00:19:20,645 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179889320] [2022-03-02 00:19:20,645 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:19:20,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-03-02 00:19:20,646 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:19:20,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-03-02 00:19:20,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=404, Invalid=1758, Unknown=0, NotChecked=0, Total=2162 [2022-03-02 00:19:20,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:19:20,647 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:19:20,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 2.382978723404255) internal successors, (112), 47 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 00:19:20,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:19:20,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:19:20,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:19:20,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:19:20,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:19:21,230 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 270 transitions and produced 215 states. [2022-03-02 00:19:21,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:19:21,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:19:21,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:19:21,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:19:21,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-02 00:19:21,249 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-02 00:19:21,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:19:21,447 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:19:21,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:19:21,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1818267922, now seen corresponding path program 6 times [2022-03-02 00:19:21,448 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:19:21,448 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347844847] [2022-03-02 00:19:21,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:19:21,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:19:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:19:22,539 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 6 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:19:22,539 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:19:22,539 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347844847] [2022-03-02 00:19:22,539 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347844847] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:19:22,539 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237130839] [2022-03-02 00:19:22,540 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-02 00:19:22,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:19:22,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:19:22,541 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:19:22,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-02 00:19:22,577 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-03-02 00:19:22,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:19:22,578 WARN L261 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 78 conjunts are in the unsatisfiable core [2022-03-02 00:19:22,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:19:23,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:19:23,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:19:23,917 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:23,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:19:23,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:19:23,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:19:23,919 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:23,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:19:23,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:19:23,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:19:23,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:19:23,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:19:23,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:19:23,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:19:23,924 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:23,928 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 28 disjoint index pairs (out of 55 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 37 [2022-03-02 00:19:24,012 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:19:24,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:19:25,789 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,790 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,790 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,791 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,791 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,792 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,793 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,794 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,794 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:19:25,801 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,801 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,803 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,803 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,804 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,804 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,804 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,805 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,805 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,807 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,808 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:19:25,810 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,810 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,811 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,811 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,812 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,813 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,814 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,815 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,815 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,820 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,821 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,824 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,824 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,826 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,827 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:19:25,831 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,836 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,837 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,838 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,839 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,839 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:25,842 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:26,082 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-02 00:19:26,083 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 38 disjoint index pairs (out of 120 index pairs), introduced 13 new quantified variables, introduced 55 case distinctions, treesize of input 79 treesize of output 460 [2022-03-02 00:19:31,285 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,285 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,286 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,286 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,287 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,287 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,287 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,288 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,288 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,289 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,289 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,289 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:19:31,291 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,291 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,291 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,292 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,292 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,293 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,293 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,293 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,294 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,294 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,294 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,295 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,295 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,296 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,296 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,296 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,297 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,297 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,298 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,298 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,299 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,299 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:19:31,300 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,301 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,301 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,302 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:19:31,303 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,303 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,304 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,304 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,305 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,305 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,306 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,306 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,307 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,307 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:19:31,309 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,309 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,310 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:19:31,311 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:19:31,312 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,313 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:19:31,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:19:31,315 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 28 disjoint index pairs (out of 120 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 3 [2022-03-02 00:19:31,492 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:19:31,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237130839] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:19:31,492 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:19:31,492 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 25, 26] total 65 [2022-03-02 00:19:31,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343675946] [2022-03-02 00:19:31,493 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:19:31,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2022-03-02 00:19:31,493 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:19:31,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2022-03-02 00:19:31,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=567, Invalid=3593, Unknown=0, NotChecked=0, Total=4160 [2022-03-02 00:19:31,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:19:31,495 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:19:31,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 2.0153846153846153) internal successors, (131), 65 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 00:19:31,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:19:31,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:19:31,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:19:31,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:19:31,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-02 00:19:31,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:20:05,229 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1959 transitions and produced 866 states. [2022-03-02 00:20:05,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:20:05,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:20:05,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:20:05,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:20:05,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-02 00:20:05,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-03-02 00:20:05,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-02 00:20:05,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:20:05,431 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:20:05,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:20:05,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1140115618, now seen corresponding path program 7 times [2022-03-02 00:20:05,431 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:20:05,433 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202148313] [2022-03-02 00:20:05,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:20:05,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:20:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:20:05,668 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 74 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:20:05,669 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:20:05,669 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202148313] [2022-03-02 00:20:05,669 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202148313] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:20:05,669 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972834474] [2022-03-02 00:20:05,669 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-02 00:20:05,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:20:05,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:20:05,670 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:20:05,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-02 00:20:05,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:20:05,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 22 conjunts are in the unsatisfiable core [2022-03-02 00:20:05,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:20:06,122 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 62 proven. 92 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-02 00:20:06,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:20:06,573 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 73 proven. 81 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-02 00:20:06,573 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972834474] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:20:06,573 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:20:06,573 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 23, 23] total 59 [2022-03-02 00:20:06,573 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364382761] [2022-03-02 00:20:06,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:20:06,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-03-02 00:20:06,574 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:20:06,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-03-02 00:20:06,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=2823, Unknown=0, NotChecked=0, Total=3422 [2022-03-02 00:20:06,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:20:06,575 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:20:06,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 2.288135593220339) internal successors, (135), 59 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 00:20:06,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:20:06,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:20:06,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:20:06,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:20:06,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-02 00:20:06,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-03-02 00:20:06,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:20:07,213 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 411 transitions and produced 309 states. [2022-03-02 00:20:07,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:20:07,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:20:07,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:20:07,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:20:07,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-02 00:20:07,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-03-02 00:20:07,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-02 00:20:07,233 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-02 00:20:07,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-03-02 00:20:07,415 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:20:07,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:20:07,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1271732028, now seen corresponding path program 8 times [2022-03-02 00:20:07,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:20:07,416 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062554830] [2022-03-02 00:20:07,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:20:07,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:20:07,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:20:07,646 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 74 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:20:07,647 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:20:07,647 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062554830] [2022-03-02 00:20:07,647 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062554830] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:20:07,647 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562332294] [2022-03-02 00:20:07,647 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 00:20:07,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:20:07,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:20:07,648 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:20:07,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-02 00:20:07,680 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 00:20:07,680 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:20:07,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 24 conjunts are in the unsatisfiable core [2022-03-02 00:20:07,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:20:08,075 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 111 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-02 00:20:08,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:20:08,554 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 79 proven. 100 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-02 00:20:08,554 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562332294] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:20:08,554 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:20:08,554 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 25, 25] total 62 [2022-03-02 00:20:08,554 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14199332] [2022-03-02 00:20:08,554 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:20:08,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-03-02 00:20:08,555 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:20:08,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-03-02 00:20:08,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=669, Invalid=3113, Unknown=0, NotChecked=0, Total=3782 [2022-03-02 00:20:08,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:20:08,556 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:20:08,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 2.274193548387097) internal successors, (141), 62 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 00:20:08,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:20:08,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:20:08,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:20:08,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:20:08,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-02 00:20:08,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-03-02 00:20:08,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-03-02 00:20:08,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:20:09,207 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 422 transitions and produced 320 states. [2022-03-02 00:20:09,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:20:09,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:20:09,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:20:09,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:20:09,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-02 00:20:09,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-03-02 00:20:09,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-02 00:20:09,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-02 00:20:09,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-02 00:20:09,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:20:09,408 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:20:09,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:20:09,409 INFO L85 PathProgramCache]: Analyzing trace with hash -225020006, now seen corresponding path program 9 times [2022-03-02 00:20:09,409 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:20:09,409 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879933342] [2022-03-02 00:20:09,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:20:09,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:20:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:20:09,637 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 74 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:20:09,638 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:20:09,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879933342] [2022-03-02 00:20:09,638 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879933342] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:20:09,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985095363] [2022-03-02 00:20:09,638 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-02 00:20:09,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:20:09,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:20:09,639 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:20:09,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-02 00:20:09,683 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2022-03-02 00:20:09,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:20:09,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 27 conjunts are in the unsatisfiable core [2022-03-02 00:20:09,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:20:10,131 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 74 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:20:10,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:20:10,717 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 85 proven. 121 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:20:10,717 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985095363] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:20:10,717 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:20:10,718 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 67 [2022-03-02 00:20:10,718 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147078904] [2022-03-02 00:20:10,718 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:20:10,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-03-02 00:20:10,718 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:20:10,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-03-02 00:20:10,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=799, Invalid=3623, Unknown=0, NotChecked=0, Total=4422 [2022-03-02 00:20:10,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:20:10,720 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:20:10,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 2.2686567164179103) internal successors, (152), 67 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 00:20:10,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:20:10,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:20:10,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:20:10,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:20:10,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-02 00:20:10,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-03-02 00:20:10,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-03-02 00:20:10,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-03-02 00:20:10,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:20:11,603 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 444 transitions and produced 340 states. [2022-03-02 00:20:11,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:20:11,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:20:11,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:20:11,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:20:11,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-02 00:20:11,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-03-02 00:20:11,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-02 00:20:11,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-02 00:20:11,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-02 00:20:11,628 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-02 00:20:11,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-03-02 00:20:11,805 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:20:11,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:20:11,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1959737814, now seen corresponding path program 10 times [2022-03-02 00:20:11,806 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:20:11,807 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377204997] [2022-03-02 00:20:11,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:20:11,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:20:11,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:20:13,804 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 24 proven. 230 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:20:13,805 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:20:13,805 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377204997] [2022-03-02 00:20:13,805 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377204997] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:20:13,805 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758961354] [2022-03-02 00:20:13,805 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-02 00:20:13,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:20:13,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:20:13,806 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:20:13,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-02 00:20:13,849 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-02 00:20:13,849 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:20:13,851 WARN L261 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 112 conjunts are in the unsatisfiable core [2022-03-02 00:20:13,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:20:16,157 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:16,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,171 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:16,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,179 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:16,179 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:16,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,189 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:16,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,201 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:16,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:16,202 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:16,204 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 78 disjoint index pairs (out of 190 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 38 [2022-03-02 00:20:16,250 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 0 proven. 254 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:20:16,250 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:20:19,227 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:19,227 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:19,227 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:19,228 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:19,228 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:19,228 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:19,229 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:19,229 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:19,229 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:19,230 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:19,230 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:19,230 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:19,230 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:19,231 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:19,231 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,832 WARN L228 SmtUtils]: Spent 12.60s on a formula simplification. DAG size of input: 1305 DAG size of output: 909 (called from [L 350] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-03-02 00:20:31,834 INFO L353 Elim1Store]: treesize reduction 1508, result has 57.9 percent of original size [2022-03-02 00:20:31,835 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 26 select indices, 26 select index equivalence classes, 15 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 310 case distinctions, treesize of input 130 treesize of output 2105 Received shutdown request... [2022-03-02 00:33:22,683 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 00:33:22,701 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 00:33:22,729 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 00:33:22,733 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-03-02 00:33:22,735 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-02 00:33:22,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-02 00:33:22,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-02 00:33:22,943 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 71 with TraceHistMax 13,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 35ms.. [2022-03-02 00:33:22,944 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-02 00:33:22,945 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-02 00:33:22,945 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-02 00:33:22,948 INFO L732 BasicCegarLoop]: Path program histogram: [10] [2022-03-02 00:33:22,950 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-02 00:33:22,950 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-02 00:33:22,951 INFO L202 PluginConnector]: Adding new model sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.03 12:33:22 BasicIcfg [2022-03-02 00:33:22,952 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-02 00:33:22,952 INFO L158 Benchmark]: Toolchain (without parser) took 849331.81ms. Allocated memory was 196.1MB in the beginning and 633.3MB in the end (delta: 437.3MB). Free memory was 161.7MB in the beginning and 183.7MB in the end (delta: -22.0MB). Peak memory consumption was 440.9MB. Max. memory is 8.0GB. [2022-03-02 00:33:22,952 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.14ms. Allocated memory is still 196.1MB. Free memory is still 162.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-02 00:33:22,953 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.60ms. Allocated memory is still 196.1MB. Free memory was 161.5MB in the beginning and 160.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 00:33:22,953 INFO L158 Benchmark]: Boogie Preprocessor took 11.56ms. Allocated memory is still 196.1MB. Free memory was 160.0MB in the beginning and 159.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 00:33:22,953 INFO L158 Benchmark]: RCFGBuilder took 255.85ms. Allocated memory is still 196.1MB. Free memory was 159.0MB in the beginning and 149.6MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-02 00:33:22,953 INFO L158 Benchmark]: TraceAbstraction took 849033.42ms. Allocated memory was 196.1MB in the beginning and 633.3MB in the end (delta: 437.3MB). Free memory was 149.1MB in the beginning and 183.7MB in the end (delta: -34.6MB). Peak memory consumption was 428.3MB. Max. memory is 8.0GB. [2022-03-02 00:33:22,954 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 0.14ms. Allocated memory is still 196.1MB. Free memory is still 162.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.60ms. Allocated memory is still 196.1MB. Free memory was 161.5MB in the beginning and 160.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.56ms. Allocated memory is still 196.1MB. Free memory was 160.0MB in the beginning and 159.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 255.85ms. Allocated memory is still 196.1MB. Free memory was 159.0MB in the beginning and 149.6MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 849033.42ms. Allocated memory was 196.1MB in the beginning and 633.3MB in the end (delta: 437.3MB). Free memory was 149.1MB in the beginning and 183.7MB in the end (delta: -34.6MB). Peak memory consumption was 428.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 71 with TraceHistMax 13,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 35ms.. - 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 71 with TraceHistMax 13,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 35ms.. - 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 71 with TraceHistMax 13,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 35ms.. - 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 71 with TraceHistMax 13,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 35ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 848.9s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 38.8s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 498, 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, 16.4s InterpolantComputationTime, 904 NumberOfCodeBlocks, 904 NumberOfCodeBlocksAsserted, 50 NumberOfCheckSat, 1329 ConstructedInterpolants, 1 QuantifiedInterpolants, 15896 SizeOfPredicates, 66 NumberOfNonLiveVariables, 1139 ConjunctsInSsa, 209 ConjunctsInUnsatCore, 27 InterpolantComputations, 0 PerfectInterpolantSequences, 1135/2745 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