/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/horseshoe.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-16 10:45:49,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-16 10:45:49,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-16 10:45:49,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-16 10:45:49,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-16 10:45:49,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-16 10:45:49,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-16 10:45:49,868 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-16 10:45:49,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-16 10:45:49,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-16 10:45:49,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-16 10:45:49,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-16 10:45:49,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-16 10:45:49,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-16 10:45:49,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-16 10:45:49,873 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-16 10:45:49,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-16 10:45:49,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-16 10:45:49,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-16 10:45:49,885 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-16 10:45:49,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-16 10:45:49,892 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-16 10:45:49,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-16 10:45:49,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-16 10:45:49,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-16 10:45:49,895 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-16 10:45:49,895 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-16 10:45:49,895 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-16 10:45:49,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-16 10:45:49,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-16 10:45:49,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-16 10:45:49,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-16 10:45:49,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-16 10:45:49,898 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-16 10:45:49,898 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-16 10:45:49,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-16 10:45:49,899 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-16 10:45:49,899 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-16 10:45:49,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-16 10:45:49,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-16 10:45:49,900 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-16 10:45:49,906 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.epf [2022-02-16 10:45:49,928 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-16 10:45:49,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-16 10:45:49,928 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-16 10:45:49,928 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-16 10:45:49,928 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-16 10:45:49,929 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-16 10:45:49,929 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-16 10:45:49,929 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-16 10:45:49,929 INFO L138 SettingsManager]: * Use SBE=true [2022-02-16 10:45:49,929 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-16 10:45:49,929 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-16 10:45:49,929 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-16 10:45:49,929 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-16 10:45:49,929 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-16 10:45:49,930 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-16 10:45:49,930 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-16 10:45:49,930 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-16 10:45:49,930 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-16 10:45:49,930 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-16 10:45:49,930 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-16 10:45:49,930 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-16 10:45:49,930 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-16 10:45:49,930 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-16 10:45:49,930 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-16 10:45:49,930 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-16 10:45:49,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 10:45:49,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-16 10:45:49,931 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-16 10:45:49,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-16 10:45:49,931 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-16 10:45:49,931 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-16 10:45:49,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-16 10:45:49,931 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-16 10:45:49,931 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-16 10:45:49,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-16 10:45:49,931 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-16 10:45:49,931 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-16 10:45:50,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-16 10:45:50,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-16 10:45:50,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-16 10:45:50,111 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-16 10:45:50,114 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-16 10:45:50,115 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/horseshoe.wvr.bpl [2022-02-16 10:45:50,115 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/horseshoe.wvr.bpl' [2022-02-16 10:45:50,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-16 10:45:50,138 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-16 10:45:50,139 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-16 10:45:50,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-16 10:45:50,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-16 10:45:50,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:45:50" (1/1) ... [2022-02-16 10:45:50,153 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:45:50" (1/1) ... [2022-02-16 10:45:50,160 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-16 10:45:50,161 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-16 10:45:50,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-16 10:45:50,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-16 10:45:50,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-16 10:45:50,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:45:50" (1/1) ... [2022-02-16 10:45:50,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:45:50" (1/1) ... [2022-02-16 10:45:50,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:45:50" (1/1) ... [2022-02-16 10:45:50,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:45:50" (1/1) ... [2022-02-16 10:45:50,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:45:50" (1/1) ... [2022-02-16 10:45:50,172 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:45:50" (1/1) ... [2022-02-16 10:45:50,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:45:50" (1/1) ... [2022-02-16 10:45:50,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-16 10:45:50,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-16 10:45:50,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-16 10:45:50,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-16 10:45:50,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:45:50" (1/1) ... [2022-02-16 10:45:50,180 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 10:45:50,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 10:45:50,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-16 10:45:50,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-16 10:45:50,219 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-16 10:45:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-16 10:45:50,219 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-16 10:45:50,220 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-16 10:45:50,220 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-16 10:45:50,220 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-16 10:45:50,220 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-16 10:45:50,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-16 10:45:50,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-16 10:45:50,220 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-16 10:45:50,220 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-16 10:45:50,220 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-16 10:45:50,221 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-16 10:45:50,256 INFO L234 CfgBuilder]: Building ICFG [2022-02-16 10:45:50,257 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-16 10:45:50,328 INFO L275 CfgBuilder]: Performing block encoding [2022-02-16 10:45:50,341 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-16 10:45:50,342 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-16 10:45:50,343 INFO L202 PluginConnector]: Adding new model horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 10:45:50 BoogieIcfgContainer [2022-02-16 10:45:50,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-16 10:45:50,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-16 10:45:50,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-16 10:45:50,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-16 10:45:50,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:45:50" (1/2) ... [2022-02-16 10:45:50,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c35651 and model type horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 10:45:50, skipping insertion in model container [2022-02-16 10:45:50,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 10:45:50" (2/2) ... [2022-02-16 10:45:50,349 INFO L111 eAbstractionObserver]: Analyzing ICFG horseshoe.wvr.bpl [2022-02-16 10:45:50,352 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-16 10:45:50,352 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-16 10:45:50,352 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-16 10:45:50,352 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-16 10:45:50,395 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-16 10:45:50,434 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-16 10:45:50,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 10:45:50,439 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-16 10:45:50,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-16 10:45:50,463 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-16 10:45:50,479 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-16 10:45:50,480 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-16 10:45:50,685 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3219 transitions and produced 1823 states. [2022-02-16 10:45:50,686 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 10:45:50,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 10:45:50,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1891996230, now seen corresponding path program 1 times [2022-02-16 10:45:50,698 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 10:45:50,699 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381828809] [2022-02-16 10:45:50,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 10:45:50,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 10:45:51,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 10:45:52,662 INFO L134 CoverageAnalysis]: Checked inductivity of 9724 backedges. 31 proven. 9538 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-02-16 10:45:52,662 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 10:45:52,663 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381828809] [2022-02-16 10:45:52,663 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381828809] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 10:45:52,663 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733766040] [2022-02-16 10:45:52,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 10:45:52,664 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 10:45:52,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 10:45:52,665 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 10:45:52,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-16 10:45:52,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 10:45:52,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 973 conjuncts, 114 conjunts are in the unsatisfiable core [2022-02-16 10:45:52,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 10:45:56,446 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 10:45:56,451 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-16 10:45:56,524 INFO L134 CoverageAnalysis]: Checked inductivity of 9724 backedges. 31 proven. 9538 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-02-16 10:45:56,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 10:45:57,957 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-02-16 10:45:57,957 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2022-02-16 10:45:58,419 INFO L134 CoverageAnalysis]: Checked inductivity of 9724 backedges. 31 proven. 9538 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-02-16 10:45:58,420 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733766040] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 10:45:58,420 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 10:45:58,420 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41, 41] total 81 [2022-02-16 10:45:58,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70733035] [2022-02-16 10:45:58,422 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 10:45:58,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2022-02-16 10:45:58,427 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 10:45:58,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2022-02-16 10:45:58,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=6421, Unknown=0, NotChecked=0, Total=6642 [2022-02-16 10:45:58,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 10:45:58,465 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 10:45:58,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 82 states have (on average 7.682926829268292) internal successors, (630), 81 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 10:45:58,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 10:46:02,413 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3087 transitions and produced 2149 states. [2022-02-16 10:46:02,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-16 10:46:02,460 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-16 10:46:02,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-02-16 10:46:02,636 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 10:46:02,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 10:46:02,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1707702616, now seen corresponding path program 2 times [2022-02-16 10:46:02,637 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 10:46:02,637 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409926730] [2022-02-16 10:46:02,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 10:46:02,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 10:46:03,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 10:46:05,162 INFO L134 CoverageAnalysis]: Checked inductivity of 19968 backedges. 31 proven. 19543 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2022-02-16 10:46:05,162 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 10:46:05,162 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409926730] [2022-02-16 10:46:05,162 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409926730] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 10:46:05,163 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602989086] [2022-02-16 10:46:05,163 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-16 10:46:05,163 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 10:46:05,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 10:46:05,164 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 10:46:05,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-16 10:46:05,347 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-16 10:46:05,347 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 10:46:05,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 1365 conjuncts, 172 conjunts are in the unsatisfiable core [2022-02-16 10:46:05,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 10:46:10,720 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 10:46:10,721 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-02-16 10:46:10,813 INFO L134 CoverageAnalysis]: Checked inductivity of 19968 backedges. 31 proven. 19543 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2022-02-16 10:46:10,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 10:46:13,415 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-02-16 10:46:13,415 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2022-02-16 10:46:14,039 INFO L134 CoverageAnalysis]: Checked inductivity of 19968 backedges. 31 proven. 19543 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2022-02-16 10:46:14,040 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602989086] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 10:46:14,040 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 10:46:14,040 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 62, 62] total 122 [2022-02-16 10:46:14,040 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176697115] [2022-02-16 10:46:14,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 10:46:14,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 123 states [2022-02-16 10:46:14,042 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 10:46:14,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 123 interpolants. [2022-02-16 10:46:14,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=333, Invalid=14673, Unknown=0, NotChecked=0, Total=15006 [2022-02-16 10:46:14,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 10:46:14,045 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 10:46:14,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 123 states, 123 states have (on average 7.2926829268292686) internal successors, (897), 122 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 10:46:14,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-02-16 10:46:14,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 10:46:24,260 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3603 transitions and produced 2573 states. [2022-02-16 10:46:24,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-16 10:46:24,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-02-16 10:46:24,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-16 10:46:24,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 10:46:24,472 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 10:46:24,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 10:46:24,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1055110967, now seen corresponding path program 3 times [2022-02-16 10:46:24,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 10:46:24,473 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004121089] [2022-02-16 10:46:24,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 10:46:24,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 10:46:24,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 10:46:27,752 INFO L134 CoverageAnalysis]: Checked inductivity of 29380 backedges. 31 proven. 29012 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2022-02-16 10:46:27,753 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 10:46:27,753 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004121089] [2022-02-16 10:46:27,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004121089] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 10:46:27,753 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858884517] [2022-02-16 10:46:27,753 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-16 10:46:27,753 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 10:46:27,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 10:46:27,755 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 10:46:27,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-16 10:46:28,231 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 119 check-sat command(s) [2022-02-16 10:46:28,231 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 10:46:28,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 1621 conjuncts, 142 conjunts are in the unsatisfiable core [2022-02-16 10:46:28,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 10:46:29,951 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-02-16 10:46:31,215 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-16 10:46:31,360 INFO L134 CoverageAnalysis]: Checked inductivity of 29380 backedges. 0 proven. 25125 refuted. 0 times theorem prover too weak. 4255 trivial. 0 not checked. [2022-02-16 10:46:31,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 10:46:32,245 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-16 10:46:32,246 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-02-16 10:46:33,023 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-16 10:46:33,024 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 22 [2022-02-16 10:46:33,282 INFO L134 CoverageAnalysis]: Checked inductivity of 29380 backedges. 0 proven. 25125 refuted. 0 times theorem prover too weak. 4255 trivial. 0 not checked. [2022-02-16 10:46:33,282 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858884517] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 10:46:33,282 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 10:46:33,282 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [84, 27, 27] total 110 [2022-02-16 10:46:33,283 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708675756] [2022-02-16 10:46:33,283 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 10:46:33,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 111 states [2022-02-16 10:46:33,284 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 10:46:33,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2022-02-16 10:46:33,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=11985, Unknown=0, NotChecked=0, Total=12210 [2022-02-16 10:46:33,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 10:46:33,287 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 10:46:33,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 111 states, 111 states have (on average 5.900900900900901) internal successors, (655), 110 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 10:46:33,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-02-16 10:46:33,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2022-02-16 10:46:33,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 10:46:52,515 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5710 transitions and produced 3495 states. [2022-02-16 10:46:52,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-16 10:46:52,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-02-16 10:46:52,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-02-16 10:46:52,537 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-02-16 10:46:52,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 10:46:52,717 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 10:46:52,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 10:46:52,717 INFO L85 PathProgramCache]: Analyzing trace with hash 2112632747, now seen corresponding path program 4 times [2022-02-16 10:46:52,717 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 10:46:52,717 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60055423] [2022-02-16 10:46:52,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 10:46:52,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 10:46:53,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 10:46:57,878 INFO L134 CoverageAnalysis]: Checked inductivity of 42925 backedges. 45 proven. 42421 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2022-02-16 10:46:57,878 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 10:46:57,878 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60055423] [2022-02-16 10:46:57,878 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60055423] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 10:46:57,878 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993063447] [2022-02-16 10:46:57,878 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-16 10:46:57,878 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 10:46:57,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 10:46:57,880 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 10:46:57,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-16 10:46:58,141 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-16 10:46:58,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 10:46:58,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 1997 conjuncts, 262 conjunts are in the unsatisfiable core [2022-02-16 10:46:58,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 10:47:09,484 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 10:47:09,485 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-16 10:47:09,601 INFO L134 CoverageAnalysis]: Checked inductivity of 42925 backedges. 45 proven. 42421 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2022-02-16 10:47:09,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 10:47:16,612 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-02-16 10:47:16,613 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2022-02-16 10:47:17,485 INFO L134 CoverageAnalysis]: Checked inductivity of 42925 backedges. 45 proven. 42421 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2022-02-16 10:47:17,486 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993063447] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 10:47:17,486 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 10:47:17,486 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [106, 106, 106] total 210 [2022-02-16 10:47:17,486 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980916330] [2022-02-16 10:47:17,486 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 10:47:17,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 211 states [2022-02-16 10:47:17,488 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 10:47:17,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 211 interpolants. [2022-02-16 10:47:17,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=575, Invalid=43735, Unknown=0, NotChecked=0, Total=44310 [2022-02-16 10:47:17,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 10:47:17,496 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 10:47:17,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 211 states, 211 states have (on average 7.180094786729858) internal successors, (1515), 210 states have internal predecessors, (1515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 10:47:17,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-02-16 10:47:17,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2022-02-16 10:47:17,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 107 states. [2022-02-16 10:47:17,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 10:47:58,267 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5126 transitions and produced 3424 states. [2022-02-16 10:47:58,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-16 10:47:58,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-02-16 10:47:58,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-02-16 10:47:58,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-02-16 10:47:58,287 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-02-16 10:47:58,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 10:47:58,472 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 10:47:58,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 10:47:58,472 INFO L85 PathProgramCache]: Analyzing trace with hash -694575815, now seen corresponding path program 5 times [2022-02-16 10:47:58,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 10:47:58,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053540042] [2022-02-16 10:47:58,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 10:47:58,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 10:47:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 10:48:05,729 INFO L134 CoverageAnalysis]: Checked inductivity of 57203 backedges. 45 proven. 56699 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2022-02-16 10:48:05,730 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 10:48:05,730 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053540042] [2022-02-16 10:48:05,730 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053540042] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 10:48:05,730 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805520192] [2022-02-16 10:48:05,730 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-16 10:48:05,731 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 10:48:05,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 10:48:05,732 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 10:48:05,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-16 10:48:12,585 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 168 check-sat command(s) [2022-02-16 10:48:12,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 10:48:12,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 2294 conjuncts, 178 conjunts are in the unsatisfiable core [2022-02-16 10:48:12,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 10:48:22,635 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-16 10:48:24,660 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-16 10:48:24,894 INFO L134 CoverageAnalysis]: Checked inductivity of 57203 backedges. 0 proven. 48518 refuted. 0 times theorem prover too weak. 8685 trivial. 0 not checked. [2022-02-16 10:48:24,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 10:48:26,003 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-16 10:48:26,003 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-02-16 10:48:28,234 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-16 10:48:28,236 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 25 [2022-02-16 10:48:28,785 INFO L134 CoverageAnalysis]: Checked inductivity of 57203 backedges. 0 proven. 45558 refuted. 0 times theorem prover too weak. 11645 trivial. 0 not checked. [2022-02-16 10:48:28,786 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805520192] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 10:48:28,786 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 10:48:28,789 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [128, 90, 35] total 224 [2022-02-16 10:48:28,789 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221244985] [2022-02-16 10:48:28,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 10:48:28,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 225 states [2022-02-16 10:48:28,791 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 10:48:28,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 225 interpolants. [2022-02-16 10:48:28,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=579, Invalid=49821, Unknown=0, NotChecked=0, Total=50400 [2022-02-16 10:48:28,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 10:48:28,794 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 10:48:28,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 225 states, 225 states have (on average 5.04) internal successors, (1134), 224 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 10:48:28,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-02-16 10:48:28,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2022-02-16 10:48:28,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 107 states. [2022-02-16 10:48:28,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 111 states. [2022-02-16 10:48:28,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 10:49:21,333 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 7668 transitions and produced 4478 states. [2022-02-16 10:49:21,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-16 10:49:21,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-02-16 10:49:21,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-02-16 10:49:21,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-02-16 10:49:21,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2022-02-16 10:49:21,362 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-02-16 10:49:21,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 10:49:21,539 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 10:49:21,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 10:49:21,539 INFO L85 PathProgramCache]: Analyzing trace with hash 423287277, now seen corresponding path program 6 times [2022-02-16 10:49:21,539 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 10:49:21,539 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573857385] [2022-02-16 10:49:21,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 10:49:21,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 10:49:22,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 10:49:31,239 INFO L134 CoverageAnalysis]: Checked inductivity of 75636 backedges. 59 proven. 74964 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2022-02-16 10:49:31,239 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 10:49:31,239 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573857385] [2022-02-16 10:49:31,239 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573857385] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 10:49:31,240 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275831271] [2022-02-16 10:49:31,240 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-16 10:49:31,240 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 10:49:31,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 10:49:31,241 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 10:49:31,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-16 10:49:32,602 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 173 check-sat command(s) [2022-02-16 10:49:32,602 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 10:49:32,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 2320 conjuncts, 82 conjunts are in the unsatisfiable core [2022-02-16 10:49:32,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 10:49:36,887 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-16 10:49:39,327 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-16 10:49:39,571 INFO L134 CoverageAnalysis]: Checked inductivity of 75636 backedges. 0 proven. 59230 refuted. 0 times theorem prover too weak. 16406 trivial. 0 not checked. [2022-02-16 10:49:39,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 10:49:40,845 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-16 10:49:40,845 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-02-16 10:49:42,257 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-16 10:49:42,257 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 22 [2022-02-16 10:49:42,585 INFO L134 CoverageAnalysis]: Checked inductivity of 75636 backedges. 0 proven. 59230 refuted. 0 times theorem prover too weak. 16406 trivial. 0 not checked. [2022-02-16 10:49:42,585 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275831271] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 10:49:42,585 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 10:49:42,586 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [150, 43, 43] total 192 [2022-02-16 10:49:42,586 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150233153] [2022-02-16 10:49:42,586 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 10:49:42,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 193 states [2022-02-16 10:49:42,587 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 10:49:42,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 193 interpolants. [2022-02-16 10:49:42,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=393, Invalid=36663, Unknown=0, NotChecked=0, Total=37056 [2022-02-16 10:49:42,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 10:49:42,589 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 10:49:42,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 193 states, 193 states have (on average 5.83419689119171) internal successors, (1126), 192 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 10:49:42,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-02-16 10:49:42,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2022-02-16 10:49:42,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 107 states. [2022-02-16 10:49:42,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 111 states. [2022-02-16 10:49:42,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 157 states. [2022-02-16 10:49:42,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 10:51:00,055 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 9076 transitions and produced 5130 states. [2022-02-16 10:51:00,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-16 10:51:00,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-02-16 10:51:00,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-02-16 10:51:00,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-02-16 10:51:00,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2022-02-16 10:51:00,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 185 states. [2022-02-16 10:51:00,078 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-16 10:51:00,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 10:51:00,257 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 10:51:00,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 10:51:00,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1047397677, now seen corresponding path program 7 times [2022-02-16 10:51:00,258 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 10:51:00,258 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13164384] [2022-02-16 10:51:00,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 10:51:00,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 10:51:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 10:51:13,194 INFO L134 CoverageAnalysis]: Checked inductivity of 96658 backedges. 73 proven. 95786 refuted. 0 times theorem prover too weak. 799 trivial. 0 not checked. [2022-02-16 10:51:13,194 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 10:51:13,194 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13164384] [2022-02-16 10:51:13,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13164384] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 10:51:13,194 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372298508] [2022-02-16 10:51:13,195 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-16 10:51:13,195 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 10:51:13,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 10:51:13,196 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 10:51:13,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-16 10:51:13,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 10:51:13,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 3004 conjuncts, 410 conjunts are in the unsatisfiable core [2022-02-16 10:51:13,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 10:51:40,121 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 10:51:40,122 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-16 10:51:40,294 INFO L134 CoverageAnalysis]: Checked inductivity of 96658 backedges. 73 proven. 95786 refuted. 0 times theorem prover too weak. 799 trivial. 0 not checked. [2022-02-16 10:51:40,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 10:51:58,045 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-02-16 10:51:58,045 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2022-02-16 10:51:59,360 INFO L134 CoverageAnalysis]: Checked inductivity of 96658 backedges. 73 proven. 95786 refuted. 0 times theorem prover too weak. 799 trivial. 0 not checked. [2022-02-16 10:51:59,361 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372298508] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 10:51:59,361 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 10:51:59,361 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [172, 172, 172] total 342 [2022-02-16 10:51:59,361 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497270677] [2022-02-16 10:51:59,361 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 10:51:59,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 343 states [2022-02-16 10:51:59,363 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 10:51:59,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 343 interpolants. [2022-02-16 10:51:59,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=938, Invalid=116368, Unknown=0, NotChecked=0, Total=117306 [2022-02-16 10:51:59,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 10:51:59,367 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 10:51:59,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 343 states, 343 states have (on average 7.154518950437318) internal successors, (2454), 342 states have internal predecessors, (2454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 10:51:59,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-02-16 10:51:59,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2022-02-16 10:51:59,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 107 states. [2022-02-16 10:51:59,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 111 states. [2022-02-16 10:51:59,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 157 states. [2022-02-16 10:51:59,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 185 states. [2022-02-16 10:51:59,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 10:54:25,293 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 7712 transitions and produced 4791 states. [2022-02-16 10:54:25,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-16 10:54:25,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-02-16 10:54:25,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-02-16 10:54:25,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-02-16 10:54:25,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2022-02-16 10:54:25,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 185 states. [2022-02-16 10:54:25,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-02-16 10:54:25,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-16 10:54:25,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-02-16 10:54:25,498 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 10:54:25,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 10:54:25,498 INFO L85 PathProgramCache]: Analyzing trace with hash 807638063, now seen corresponding path program 8 times [2022-02-16 10:54:25,499 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 10:54:25,499 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448890006] [2022-02-16 10:54:25,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 10:54:25,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 10:54:28,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 10:54:41,950 INFO L134 CoverageAnalysis]: Checked inductivity of 117591 backedges. 73 proven. 116719 refuted. 0 times theorem prover too weak. 799 trivial. 0 not checked. [2022-02-16 10:54:41,950 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 10:54:41,950 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448890006] [2022-02-16 10:54:41,950 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448890006] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 10:54:41,950 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734466414] [2022-02-16 10:54:41,950 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-16 10:54:41,951 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 10:54:41,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 10:54:41,952 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 10:54:41,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-16 10:54:42,367 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-16 10:54:42,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 10:54:42,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 3301 conjuncts, 454 conjunts are in the unsatisfiable core [2022-02-16 10:54:42,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 10:55:14,758 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 10:55:14,759 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-16 10:55:14,948 INFO L134 CoverageAnalysis]: Checked inductivity of 117591 backedges. 73 proven. 116719 refuted. 0 times theorem prover too weak. 799 trivial. 0 not checked. [2022-02-16 10:55:14,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 10:55:37,839 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-02-16 10:55:37,839 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2022-02-16 10:55:39,240 INFO L134 CoverageAnalysis]: Checked inductivity of 117591 backedges. 73 proven. 116719 refuted. 0 times theorem prover too weak. 799 trivial. 0 not checked. [2022-02-16 10:55:39,241 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1734466414] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 10:55:39,241 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 10:55:39,241 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [194, 194, 194] total 386 [2022-02-16 10:55:39,241 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058127027] [2022-02-16 10:55:39,241 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 10:55:39,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 387 states [2022-02-16 10:55:39,243 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 10:55:39,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 387 interpolants. [2022-02-16 10:55:39,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1059, Invalid=148323, Unknown=0, NotChecked=0, Total=149382 [2022-02-16 10:55:39,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 10:55:39,249 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 10:55:39,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 387 states, 387 states have (on average 7.108527131782946) internal successors, (2751), 386 states have internal predecessors, (2751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 10:55:39,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-02-16 10:55:39,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2022-02-16 10:55:39,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 107 states. [2022-02-16 10:55:39,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 111 states. [2022-02-16 10:55:39,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 157 states. [2022-02-16 10:55:39,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 185 states. [2022-02-16 10:55:39,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2022-02-16 10:55:39,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-02-16 10:58:39,555 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-16 10:58:39,555 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-16 10:58:39,555 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-16 10:58:39,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-16 10:58:39,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 10:58:39,759 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 516 known predicates. [2022-02-16 10:58:39,761 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-02-16 10:58:39,761 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-16 10:58:39,761 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-16 10:58:39,761 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-16 10:58:39,765 INFO L732 BasicCegarLoop]: Path program histogram: [8] [2022-02-16 10:58:39,766 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-16 10:58:39,766 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-16 10:58:39,768 INFO L202 PluginConnector]: Adding new model horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 10:58:39 BasicIcfg [2022-02-16 10:58:39,768 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-16 10:58:39,768 INFO L158 Benchmark]: Toolchain (without parser) took 769630.52ms. Allocated memory was 174.1MB in the beginning and 688.9MB in the end (delta: 514.9MB). Free memory was 132.9MB in the beginning and 282.0MB in the end (delta: -149.1MB). Peak memory consumption was 366.9MB. Max. memory is 8.0GB. [2022-02-16 10:58:39,768 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 174.1MB. Free memory is still 134.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-16 10:58:39,768 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.25ms. Allocated memory is still 174.1MB. Free memory was 132.9MB in the beginning and 131.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-16 10:58:39,768 INFO L158 Benchmark]: Boogie Preprocessor took 11.25ms. Allocated memory is still 174.1MB. Free memory was 131.3MB in the beginning and 130.3MB in the end (delta: 910.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-16 10:58:39,769 INFO L158 Benchmark]: RCFGBuilder took 169.45ms. Allocated memory is still 174.1MB. Free memory was 130.2MB in the beginning and 120.3MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-16 10:58:39,769 INFO L158 Benchmark]: TraceAbstraction took 769423.22ms. Allocated memory was 174.1MB in the beginning and 688.9MB in the end (delta: 514.9MB). Free memory was 119.9MB in the beginning and 282.0MB in the end (delta: -162.1MB). Peak memory consumption was 354.3MB. Max. memory is 8.0GB. [2022-02-16 10:58:39,770 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 0.09ms. Allocated memory is still 174.1MB. Free memory is still 134.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.25ms. Allocated memory is still 174.1MB. Free memory was 132.9MB in the beginning and 131.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.25ms. Allocated memory is still 174.1MB. Free memory was 131.3MB in the beginning and 130.3MB in the end (delta: 910.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 169.45ms. Allocated memory is still 174.1MB. Free memory was 130.2MB in the beginning and 120.3MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 769423.22ms. Allocated memory was 174.1MB in the beginning and 688.9MB in the end (delta: 514.9MB). Free memory was 119.9MB in the beginning and 282.0MB in the end (delta: -162.1MB). Peak memory consumption was 354.3MB. 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: 84]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 516 known predicates. - TimeoutResultAtElement [Line: 77]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 516 known predicates. - TimeoutResultAtElement [Line: 77]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 516 known predicates. - TimeoutResultAtElement [Line: 78]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 516 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 53 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 769.3s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 530.6s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 992, 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: 0.5s SsaConstructionTime, 18.8s SatisfiabilityAnalysisTime, 217.2s InterpolantComputationTime, 14042 NumberOfCodeBlocks, 13900 NumberOfCodeBlocksAsserted, 475 NumberOfCheckSat, 21039 ConstructedInterpolants, 2835 QuantifiedInterpolants, 200911 SizeOfPredicates, 35 NumberOfNonLiveVariables, 16875 ConjunctsInSsa, 1814 ConjunctsInUnsatCore, 24 InterpolantComputations, 0 PerfectInterpolantSequences, 71773/1347255 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