/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/nonblocking-counter-alt2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-02 00:11:50,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-02 00:11:50,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-02 00:11:50,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-02 00:11:50,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-02 00:11:50,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-02 00:11:50,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-02 00:11:50,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-02 00:11:50,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-02 00:11:50,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-02 00:11:50,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-02 00:11:50,454 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-02 00:11:50,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-02 00:11:50,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-02 00:11:50,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-02 00:11:50,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-02 00:11:50,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-02 00:11:50,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-02 00:11:50,462 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-02 00:11:50,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-02 00:11:50,468 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-02 00:11:50,468 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-02 00:11:50,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-02 00:11:50,470 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-02 00:11:50,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-02 00:11:50,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-02 00:11:50,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-02 00:11:50,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-02 00:11:50,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-02 00:11:50,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-02 00:11:50,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-02 00:11:50,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-02 00:11:50,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-02 00:11:50,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-02 00:11:50,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-02 00:11:50,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-02 00:11:50,479 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-02 00:11:50,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-02 00:11:50,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-02 00:11:50,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-02 00:11:50,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-02 00:11:50,483 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-03-02 00:11:50,509 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-02 00:11:50,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-02 00:11:50,509 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-02 00:11:50,510 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-02 00:11:50,510 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-02 00:11:50,510 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-02 00:11:50,511 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-02 00:11:50,511 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-02 00:11:50,511 INFO L138 SettingsManager]: * Use SBE=true [2022-03-02 00:11:50,511 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-02 00:11:50,512 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-02 00:11:50,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-02 00:11:50,512 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-02 00:11:50,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-02 00:11:50,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-02 00:11:50,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-02 00:11:50,512 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-02 00:11:50,513 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-02 00:11:50,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-02 00:11:50,513 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-02 00:11:50,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-02 00:11:50,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-02 00:11:50,513 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-02 00:11:50,513 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-02 00:11:50,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-02 00:11:50,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 00:11:50,514 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-02 00:11:50,514 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-02 00:11:50,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-02 00:11:50,515 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-02 00:11:50,515 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-02 00:11:50,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-02 00:11:50,515 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-02 00:11:50,515 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-02 00:11:50,515 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-02 00:11:50,515 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-02 00:11:50,515 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-02 00:11:50,516 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-02 00:11:50,516 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-02 00:11:50,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-02 00:11:50,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-02 00:11:50,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-02 00:11:50,731 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-02 00:11:50,733 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-02 00:11:50,734 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/nonblocking-counter-alt2.wvr.bpl [2022-03-02 00:11:50,734 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/nonblocking-counter-alt2.wvr.bpl' [2022-03-02 00:11:50,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-02 00:11:50,755 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-02 00:11:50,756 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-02 00:11:50,756 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-02 00:11:50,756 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-02 00:11:50,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:11:50" (1/1) ... [2022-03-02 00:11:50,772 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:11:50" (1/1) ... [2022-03-02 00:11:50,777 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-02 00:11:50,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-02 00:11:50,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-02 00:11:50,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-02 00:11:50,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-02 00:11:50,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:11:50" (1/1) ... [2022-03-02 00:11:50,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:11:50" (1/1) ... [2022-03-02 00:11:50,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:11:50" (1/1) ... [2022-03-02 00:11:50,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:11:50" (1/1) ... [2022-03-02 00:11:50,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:11:50" (1/1) ... [2022-03-02 00:11:50,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:11:50" (1/1) ... [2022-03-02 00:11:50,791 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:11:50" (1/1) ... [2022-03-02 00:11:50,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-02 00:11:50,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-02 00:11:50,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-02 00:11:50,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-02 00:11:50,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:11:50" (1/1) ... [2022-03-02 00:11:50,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 00:11:50,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:11:50,821 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-02 00:11:50,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-02 00:11:50,851 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-02 00:11:50,851 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-02 00:11:50,851 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-02 00:11:50,851 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-02 00:11:50,851 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-02 00:11:50,852 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-02 00:11:50,852 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-02 00:11:50,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-02 00:11:50,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-02 00:11:50,853 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-02 00:11:50,887 INFO L234 CfgBuilder]: Building ICFG [2022-03-02 00:11:50,888 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-02 00:11:50,951 INFO L275 CfgBuilder]: Performing block encoding [2022-03-02 00:11:50,961 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-02 00:11:50,961 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-02 00:11:50,962 INFO L202 PluginConnector]: Adding new model nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 12:11:50 BoogieIcfgContainer [2022-03-02 00:11:50,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-02 00:11:50,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-02 00:11:50,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-02 00:11:50,966 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-02 00:11:50,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:11:50" (1/2) ... [2022-03-02 00:11:50,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66a3f90d and model type nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.03 12:11:50, skipping insertion in model container [2022-03-02 00:11:50,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 12:11:50" (2/2) ... [2022-03-02 00:11:50,968 INFO L111 eAbstractionObserver]: Analyzing ICFG nonblocking-counter-alt2.wvr.bpl [2022-03-02 00:11:50,971 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-02 00:11:50,971 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-02 00:11:50,971 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-02 00:11:50,971 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-02 00:11:50,991 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-02 00:11:51,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-02 00:11:51,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:11:51,030 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-02 00:11:51,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-02 00:11:51,052 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-02 00:11:51,056 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-03-02 00:11:51,056 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-02 00:11:51,166 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 78 transitions and produced 71 states. [2022-03-02 00:11:51,168 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 00:11:51,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:11:51,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1283594101, now seen corresponding path program 1 times [2022-03-02 00:11:51,178 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:11:51,178 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073637680] [2022-03-02 00:11:51,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:11:51,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:11:51,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:11:51,457 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 14 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-02 00:11:51,458 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:11:51,458 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073637680] [2022-03-02 00:11:51,459 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073637680] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:11:51,459 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602918923] [2022-03-02 00:11:51,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:11:51,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:11:51,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:11:51,483 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:11:51,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-02 00:11:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:11:51,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 27 conjunts are in the unsatisfiable core [2022-03-02 00:11:51,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:11:52,445 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:11:52,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:11:53,084 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:11:53,085 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602918923] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:11:53,085 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:11:53,085 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14, 14] total 35 [2022-03-02 00:11:53,087 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090408683] [2022-03-02 00:11:53,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:11:53,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-03-02 00:11:53,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:11:53,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-03-02 00:11:53,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=1000, Unknown=0, NotChecked=0, Total=1260 [2022-03-02 00:11:53,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:11:53,108 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:11:53,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 2.2222222222222223) internal successors, (80), 35 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 00:11:53,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:11:53,725 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 81 transitions and produced 75 states. [2022-03-02 00:11:53,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-03-02 00:11:53,759 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-02 00:11:53,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-02 00:11:53,943 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 00:11:53,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:11:53,944 INFO L85 PathProgramCache]: Analyzing trace with hash 2020318779, now seen corresponding path program 2 times [2022-03-02 00:11:53,944 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:11:53,944 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816125133] [2022-03-02 00:11:53,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:11:53,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:11:53,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:11:54,292 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:11:54,292 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:11:54,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816125133] [2022-03-02 00:11:54,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816125133] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:11:54,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656913699] [2022-03-02 00:11:54,293 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 00:11:54,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:11:54,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:11:54,317 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:11:54,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-02 00:11:54,375 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 00:11:54,375 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:11:54,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 19 conjunts are in the unsatisfiable core [2022-03-02 00:11:54,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:11:54,895 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 20 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:11:54,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:11:55,386 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 6 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:11:55,387 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656913699] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:11:55,387 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:11:55,387 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 15] total 43 [2022-03-02 00:11:55,388 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051506887] [2022-03-02 00:11:55,388 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:11:55,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-03-02 00:11:55,390 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:11:55,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-03-02 00:11:55,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=247, Invalid=1645, Unknown=0, NotChecked=0, Total=1892 [2022-03-02 00:11:55,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:11:55,392 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:11:55,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 1.9772727272727273) internal successors, (87), 43 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 00:11:55,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-03-02 00:11:55,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:11:56,403 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 114 transitions and produced 100 states. [2022-03-02 00:11:56,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:11:56,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:11:56,423 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-02 00:11:56,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:11:56,620 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 00:11:56,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:11:56,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1229191807, now seen corresponding path program 3 times [2022-03-02 00:11:56,620 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:11:56,620 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356227927] [2022-03-02 00:11:56,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:11:56,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:11:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:11:56,857 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 47 proven. 51 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-02 00:11:56,857 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:11:56,857 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356227927] [2022-03-02 00:11:56,858 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356227927] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:11:56,858 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813623453] [2022-03-02 00:11:56,858 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-02 00:11:56,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:11:56,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:11:56,869 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:11:56,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-02 00:11:56,902 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2022-03-02 00:11:56,902 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:11:56,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 27 conjunts are in the unsatisfiable core [2022-03-02 00:11:56,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:11:57,438 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 27 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:11:57,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:11:58,241 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 25 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:11:58,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813623453] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:11:58,242 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:11:58,242 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18, 20] total 52 [2022-03-02 00:11:58,242 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194679239] [2022-03-02 00:11:58,243 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:11:58,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-03-02 00:11:58,245 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:11:58,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-03-02 00:11:58,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=489, Invalid=2267, Unknown=0, NotChecked=0, Total=2756 [2022-03-02 00:11:58,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:11:58,248 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:11:58,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 2.188679245283019) internal successors, (116), 52 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 00:11:58,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:11:58,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:11:58,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:11:59,859 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 129 transitions and produced 113 states. [2022-03-02 00:11:59,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:11:59,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:11:59,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-02 00:11:59,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-02 00:12:00,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:12:00,062 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 00:12:00,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:12:00,062 INFO L85 PathProgramCache]: Analyzing trace with hash -249677237, now seen corresponding path program 4 times [2022-03-02 00:12:00,063 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:12:00,063 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300145562] [2022-03-02 00:12:00,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:12:00,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:12:00,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:12:00,648 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:12:00,648 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:12:00,648 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300145562] [2022-03-02 00:12:00,649 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300145562] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:12:00,649 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184477231] [2022-03-02 00:12:00,649 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-02 00:12:00,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:12:00,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:12:00,650 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:12:00,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-02 00:12:00,687 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-02 00:12:00,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:12:00,688 WARN L261 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 59 conjunts are in the unsatisfiable core [2022-03-02 00:12:00,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:12:02,097 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:12:02,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:12:03,727 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 56 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:12:03,728 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184477231] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:12:03,728 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:12:03,728 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24, 24] total 71 [2022-03-02 00:12:03,728 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191831561] [2022-03-02 00:12:03,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:12:03,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2022-03-02 00:12:03,729 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:12:03,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2022-03-02 00:12:03,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=737, Invalid=4233, Unknown=0, NotChecked=0, Total=4970 [2022-03-02 00:12:03,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:12:03,731 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:12:03,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 1.9859154929577465) internal successors, (141), 71 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 00:12:03,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:12:03,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:12:03,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-03-02 00:12:03,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:12:06,458 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 185 transitions and produced 154 states. [2022-03-02 00:12:06,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:12:06,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:12:06,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-02 00:12:06,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-02 00:12:06,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-02 00:12:06,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:12:06,673 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 00:12:06,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:12:06,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1556082153, now seen corresponding path program 5 times [2022-03-02 00:12:06,673 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:12:06,673 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591848637] [2022-03-02 00:12:06,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:12:06,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:12:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:12:07,224 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 223 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-02 00:12:07,225 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:12:07,225 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591848637] [2022-03-02 00:12:07,225 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591848637] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:12:07,225 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027532542] [2022-03-02 00:12:07,225 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-02 00:12:07,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:12:07,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:12:07,234 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:12:07,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-02 00:12:07,296 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2022-03-02 00:12:07,296 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:12:07,297 WARN L261 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 81 conjunts are in the unsatisfiable core [2022-03-02 00:12:07,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:12:09,581 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 0 proven. 337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:12:09,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:12:11,726 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 0 proven. 337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:12:11,727 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027532542] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:12:11,727 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:12:11,727 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 31, 32] total 88 [2022-03-02 00:12:11,727 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575165276] [2022-03-02 00:12:11,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:12:11,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2022-03-02 00:12:11,728 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:12:11,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2022-03-02 00:12:11,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1508, Invalid=6324, Unknown=0, NotChecked=0, Total=7832 [2022-03-02 00:12:11,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:12:11,730 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:12:11,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 89 states have (on average 2.0898876404494384) internal successors, (186), 88 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 00:12:11,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:12:11,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:12:11,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-03-02 00:12:11,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-02 00:12:11,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:12:15,762 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 213 transitions and produced 183 states. [2022-03-02 00:12:15,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:12:15,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:12:15,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-02 00:12:15,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-02 00:12:15,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-03-02 00:12:15,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-02 00:12:15,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:12:15,980 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 00:12:15,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:12:15,980 INFO L85 PathProgramCache]: Analyzing trace with hash 816922215, now seen corresponding path program 6 times [2022-03-02 00:12:15,981 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:12:15,981 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732419835] [2022-03-02 00:12:15,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:12:15,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:12:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:12:17,135 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 0 proven. 481 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:12:17,136 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:12:17,136 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732419835] [2022-03-02 00:12:17,136 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732419835] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:12:17,136 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130131824] [2022-03-02 00:12:17,136 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-02 00:12:17,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:12:17,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:12:17,137 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:12:17,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-02 00:12:17,252 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2022-03-02 00:12:17,252 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:12:17,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 75 conjunts are in the unsatisfiable core [2022-03-02 00:12:17,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:12:20,037 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 42 proven. 439 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:12:20,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:12:22,422 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 210 proven. 271 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:12:22,422 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130131824] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:12:22,422 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:12:22,422 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 38, 37] total 110 [2022-03-02 00:12:22,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282311294] [2022-03-02 00:12:22,422 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:12:22,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 111 states [2022-03-02 00:12:22,423 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:12:22,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2022-03-02 00:12:22,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1308, Invalid=10902, Unknown=0, NotChecked=0, Total=12210 [2022-03-02 00:12:22,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:12:22,426 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:12:22,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 111 states, 111 states have (on average 1.972972972972973) internal successors, (219), 110 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 00:12:22,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:12:22,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:12:22,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-03-02 00:12:22,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-02 00:12:22,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-03-02 00:12:22,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:12:29,005 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 246 transitions and produced 209 states. [2022-03-02 00:12:29,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:12:29,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:12:29,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-02 00:12:29,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-02 00:12:29,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-02 00:12:29,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-02 00:12:29,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-02 00:12:29,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:12:29,207 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 00:12:29,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:12:29,207 INFO L85 PathProgramCache]: Analyzing trace with hash -473765459, now seen corresponding path program 7 times [2022-03-02 00:12:29,207 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:12:29,207 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77373784] [2022-03-02 00:12:29,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:12:29,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:12:29,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:12:29,847 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 322 proven. 326 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-02 00:12:29,847 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:12:29,847 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77373784] [2022-03-02 00:12:29,847 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77373784] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:12:29,850 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873363930] [2022-03-02 00:12:29,850 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-02 00:12:29,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:12:29,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:12:29,853 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:12:29,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-02 00:12:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:12:29,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 56 conjunts are in the unsatisfiable core [2022-03-02 00:12:29,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:12:31,588 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 258 proven. 392 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:12:31,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:12:33,600 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 262 proven. 388 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:12:33,601 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873363930] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:12:33,601 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:12:33,601 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 40, 41] total 116 [2022-03-02 00:12:33,601 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788701618] [2022-03-02 00:12:33,601 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:12:33,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 117 states [2022-03-02 00:12:33,602 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:12:33,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 117 interpolants. [2022-03-02 00:12:33,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2127, Invalid=11445, Unknown=0, NotChecked=0, Total=13572 [2022-03-02 00:12:33,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:12:33,605 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:12:33,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 117 states, 117 states have (on average 2.111111111111111) internal successors, (247), 116 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 00:12:33,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:12:33,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:12:33,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-03-02 00:12:33,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-02 00:12:33,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2022-03-02 00:12:33,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-02 00:12:33,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:12:37,617 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 261 transitions and produced 221 states. [2022-03-02 00:12:37,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:12:37,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:12:37,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-02 00:12:37,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-02 00:12:37,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-02 00:12:37,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-02 00:12:37,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-02 00:12:37,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-02 00:12:37,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-03-02 00:12:37,818 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 00:12:37,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:12:37,819 INFO L85 PathProgramCache]: Analyzing trace with hash 960201335, now seen corresponding path program 8 times [2022-03-02 00:12:37,819 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:12:37,819 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475414815] [2022-03-02 00:12:37,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:12:37,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:12:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:12:39,533 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 0 proven. 761 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:12:39,533 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:12:39,533 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475414815] [2022-03-02 00:12:39,534 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475414815] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:12:39,534 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614714841] [2022-03-02 00:12:39,534 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 00:12:39,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:12:39,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:12:39,535 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:12:39,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-02 00:12:39,580 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 00:12:39,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:12:39,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 64 conjunts are in the unsatisfiable core [2022-03-02 00:12:39,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:12:42,271 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 380 proven. 381 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:12:42,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:12:45,003 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 306 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:12:45,004 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614714841] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:12:45,004 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:12:45,004 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 45, 45] total 132 [2022-03-02 00:12:45,004 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842670067] [2022-03-02 00:12:45,004 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:12:45,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 133 states [2022-03-02 00:12:45,005 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:12:45,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 133 interpolants. [2022-03-02 00:12:45,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2402, Invalid=15154, Unknown=0, NotChecked=0, Total=17556 [2022-03-02 00:12:45,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:12:45,009 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:12:45,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 133 states, 133 states have (on average 2.0) internal successors, (266), 132 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 00:12:45,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:12:45,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:12:45,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-03-02 00:12:45,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-02 00:12:45,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2022-03-02 00:12:45,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-02 00:12:45,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-02 00:12:45,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:12:52,027 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 413 transitions and produced 335 states. [2022-03-02 00:12:52,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:12:52,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-02 00:12:52,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-02 00:12:52,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-02 00:12:52,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-02 00:12:52,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-02 00:12:52,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-03-02 00:12:52,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-03-02 00:12:52,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-02 00:12:52,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:12:52,242 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 00:12:52,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:12:52,243 INFO L85 PathProgramCache]: Analyzing trace with hash 195561243, now seen corresponding path program 9 times [2022-03-02 00:12:52,243 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:12:52,243 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311801082] [2022-03-02 00:12:52,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:12:52,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:12:52,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:12:53,408 INFO L134 CoverageAnalysis]: Checked inductivity of 2041 backedges. 1519 proven. 518 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-02 00:12:53,409 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:12:53,409 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311801082] [2022-03-02 00:12:53,411 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311801082] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:12:53,411 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267825213] [2022-03-02 00:12:53,411 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-02 00:12:53,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:12:53,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:12:53,412 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:12:53,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-02 00:12:53,518 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 41 check-sat command(s) [2022-03-02 00:12:53,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:12:53,522 WARN L261 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 172 conjunts are in the unsatisfiable core [2022-03-02 00:12:53,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:13:13,525 INFO L134 CoverageAnalysis]: Checked inductivity of 2041 backedges. 0 proven. 2041 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:13:13,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:13:20,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2041 backedges. 0 proven. 2041 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:13:20,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267825213] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:13:20,296 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:13:20,296 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 67, 67] total 193 [2022-03-02 00:13:20,296 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455976809] [2022-03-02 00:13:20,296 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:13:20,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 194 states [2022-03-02 00:13:20,297 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:13:20,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 194 interpolants. [2022-03-02 00:13:20,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7665, Invalid=29758, Unknown=19, NotChecked=0, Total=37442 [2022-03-02 00:13:20,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:13:20,306 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:13:20,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 194 states, 194 states have (on average 2.0412371134020617) internal successors, (396), 193 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 00:13:20,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:13:20,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-03-02 00:13:20,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-02 00:13:20,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-02 00:13:20,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2022-03-02 00:13:20,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2022-03-02 00:13:20,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 100 states. [2022-03-02 00:13:20,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2022-03-02 00:13:20,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:13:32,779 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 489 transitions and produced 394 states. [2022-03-02 00:13:32,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:13:32,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-02 00:13:32,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-02 00:13:32,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-02 00:13:32,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-02 00:13:32,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-02 00:13:32,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-03-02 00:13:32,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-03-02 00:13:32,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2022-03-02 00:13:32,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-02 00:13:33,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-03-02 00:13:33,002 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 00:13:33,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:13:33,011 INFO L85 PathProgramCache]: Analyzing trace with hash -2047553341, now seen corresponding path program 10 times [2022-03-02 00:13:33,012 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:13:33,012 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199026853] [2022-03-02 00:13:33,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:13:33,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:13:33,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:13:39,389 INFO L134 CoverageAnalysis]: Checked inductivity of 2965 backedges. 0 proven. 2965 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:13:39,390 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:13:39,390 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199026853] [2022-03-02 00:13:39,390 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199026853] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:13:39,390 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616736051] [2022-03-02 00:13:39,390 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-02 00:13:39,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:13:39,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:13:39,391 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:13:39,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-02 00:13:39,679 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-02 00:13:39,679 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:13:39,685 WARN L261 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 317 conjunts are in the unsatisfiable core [2022-03-02 00:13:39,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:13:48,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2965 backedges. 0 proven. 2965 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:13:48,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:14:02,393 INFO L134 CoverageAnalysis]: Checked inductivity of 2965 backedges. 0 proven. 2965 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:14:02,394 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616736051] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:14:02,394 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:14:02,394 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 85, 85] total 213 [2022-03-02 00:14:02,394 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992188547] [2022-03-02 00:14:02,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:14:02,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 213 states [2022-03-02 00:14:02,395 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:14:02,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 213 interpolants. [2022-03-02 00:14:02,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9081, Invalid=36075, Unknown=0, NotChecked=0, Total=45156 [2022-03-02 00:14:02,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:14:02,399 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:14:02,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 213 states, 213 states have (on average 1.9812206572769953) internal successors, (422), 213 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 00:14:02,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:14:02,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-03-02 00:14:02,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-02 00:14:02,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-02 00:14:02,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2022-03-02 00:14:02,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2022-03-02 00:14:02,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 100 states. [2022-03-02 00:14:02,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-03-02 00:14:02,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 142 states. [2022-03-02 00:14:02,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:16:13,079 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 762 transitions and produced 555 states. [2022-03-02 00:16:13,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:16:13,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-02 00:16:13,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-02 00:16:13,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-02 00:16:13,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-02 00:16:13,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-02 00:16:13,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-03-02 00:16:13,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-03-02 00:16:13,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2022-03-02 00:16:13,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 236 states. [2022-03-02 00:16:13,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-02 00:16:13,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-02 00:16:13,296 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 00:16:13,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:16:13,296 INFO L85 PathProgramCache]: Analyzing trace with hash -773108847, now seen corresponding path program 11 times [2022-03-02 00:16:13,297 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:16:13,297 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123897987] [2022-03-02 00:16:13,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:16:13,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:16:13,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:16:16,565 INFO L134 CoverageAnalysis]: Checked inductivity of 7450 backedges. 5776 proven. 1674 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:16:16,565 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:16:16,565 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123897987] [2022-03-02 00:16:16,566 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123897987] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:16:16,566 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896096456] [2022-03-02 00:16:16,566 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-02 00:16:16,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:16:16,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:16:16,567 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:16:16,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-02 00:16:16,912 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 78 check-sat command(s) [2022-03-02 00:16:16,912 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:16:16,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 272 conjunts are in the unsatisfiable core [2022-03-02 00:16:16,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:16:32,006 INFO L134 CoverageAnalysis]: Checked inductivity of 7450 backedges. 0 proven. 7450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:16:32,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:18:56,665 INFO L134 CoverageAnalysis]: Checked inductivity of 7450 backedges. 5852 proven. 1598 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:18:56,665 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [896096456] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:18:56,665 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:18:56,665 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [121, 122, 122] total 361 [2022-03-02 00:18:56,665 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471726845] [2022-03-02 00:18:56,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:18:56,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 362 states [2022-03-02 00:18:56,666 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:18:56,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 362 interpolants. [2022-03-02 00:18:56,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29400, Invalid=101282, Unknown=0, NotChecked=0, Total=130682 [2022-03-02 00:18:56,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:18:56,676 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:18:56,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 362 states, 362 states have (on average 2.016574585635359) internal successors, (730), 361 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 00:18:56,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:18:56,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-03-02 00:18:56,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-02 00:18:56,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-02 00:18:56,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2022-03-02 00:18:56,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2022-03-02 00:18:56,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 100 states. [2022-03-02 00:18:56,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-03-02 00:18:56,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 142 states. [2022-03-02 00:18:56,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 236 states. [2022-03-02 00:18:56,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:20:43,147 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1114 transitions and produced 865 states. [2022-03-02 00:20:43,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:20:43,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-02 00:20:43,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-02 00:20:43,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-02 00:20:43,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-02 00:20:43,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-02 00:20:43,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-03-02 00:20:43,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-03-02 00:20:43,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-02 00:20:43,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 285 states. [2022-03-02 00:20:43,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 287 states. [2022-03-02 00:20:43,165 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-03-02 00:20:43,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-03-02 00:20:43,364 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 00:20:43,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:20:43,364 INFO L85 PathProgramCache]: Analyzing trace with hash -438892155, now seen corresponding path program 12 times [2022-03-02 00:20:43,364 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:20:43,364 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837193194] [2022-03-02 00:20:43,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:20:43,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:20:43,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:20:50,590 INFO L134 CoverageAnalysis]: Checked inductivity of 16004 backedges. 9407 proven. 6593 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-02 00:20:50,590 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:20:50,590 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837193194] [2022-03-02 00:20:50,590 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837193194] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:20:50,590 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341911888] [2022-03-02 00:20:50,590 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-02 00:20:50,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:20:50,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:20:50,592 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:20:50,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-03-02 00:20:51,947 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 99 check-sat command(s) [2022-03-02 00:20:51,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:20:51,961 WARN L261 TraceCheckSpWp]: Trace formula consists of 919 conjuncts, 535 conjunts are in the unsatisfiable core [2022-03-02 00:20:51,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:25:14,777 INFO L134 CoverageAnalysis]: Checked inductivity of 16004 backedges. 0 proven. 16004 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:25:14,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:25:45,302 INFO L134 CoverageAnalysis]: Checked inductivity of 16004 backedges. 0 proven. 16004 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:25:45,302 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341911888] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:25:45,302 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:25:45,302 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [179, 184, 184] total 544 [2022-03-02 00:25:45,304 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348067455] [2022-03-02 00:25:45,304 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:25:45,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 545 states [2022-03-02 00:25:45,305 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:25:45,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 545 interpolants. [2022-03-02 00:25:45,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48407, Invalid=247995, Unknown=78, NotChecked=0, Total=296480 [2022-03-02 00:25:45,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:25:45,321 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:25:45,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 545 states, 545 states have (on average 2.014678899082569) internal successors, (1098), 544 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 00:25:45,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:25:45,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-03-02 00:25:45,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-02 00:25:45,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-02 00:25:45,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2022-03-02 00:25:45,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2022-03-02 00:25:45,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 100 states. [2022-03-02 00:25:45,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-03-02 00:25:45,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-02 00:25:45,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 285 states. [2022-03-02 00:25:45,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 287 states. [2022-03-02 00:25:45,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-03-02 00:26:20,388 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-03-02 00:26:20,394 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 00:26:20,394 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 00:26:20,394 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 00:26:20,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-03-02 00:26:20,569 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 757 known predicates. [2022-03-02 00:26:20,570 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-02 00:26:20,571 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-02 00:26:20,571 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-02 00:26:20,575 INFO L732 BasicCegarLoop]: Path program histogram: [12] [2022-03-02 00:26:20,576 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-02 00:26:20,577 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-02 00:26:20,578 INFO L202 PluginConnector]: Adding new model nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.03 12:26:20 BasicIcfg [2022-03-02 00:26:20,578 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-02 00:26:20,578 INFO L158 Benchmark]: Toolchain (without parser) took 869823.55ms. Allocated memory was 175.1MB in the beginning and 1.1GB in the end (delta: 922.7MB). Free memory was 139.2MB in the beginning and 259.3MB in the end (delta: -120.1MB). Peak memory consumption was 804.2MB. Max. memory is 8.0GB. [2022-03-02 00:26:20,578 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.14ms. Allocated memory is still 175.1MB. Free memory is still 140.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-02 00:26:20,579 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.86ms. Allocated memory is still 175.1MB. Free memory was 139.1MB in the beginning and 137.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 00:26:20,579 INFO L158 Benchmark]: Boogie Preprocessor took 11.83ms. Allocated memory is still 175.1MB. Free memory was 137.6MB in the beginning and 136.7MB in the end (delta: 880.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 00:26:20,579 INFO L158 Benchmark]: RCFGBuilder took 169.02ms. Allocated memory is still 175.1MB. Free memory was 136.5MB in the beginning and 127.9MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-02 00:26:20,579 INFO L158 Benchmark]: TraceAbstraction took 869614.41ms. Allocated memory was 175.1MB in the beginning and 1.1GB in the end (delta: 922.7MB). Free memory was 127.4MB in the beginning and 259.3MB in the end (delta: -131.9MB). Peak memory consumption was 791.6MB. Max. memory is 8.0GB. [2022-03-02 00:26:20,580 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.14ms. Allocated memory is still 175.1MB. Free memory is still 140.3MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.86ms. Allocated memory is still 175.1MB. Free memory was 139.1MB in the beginning and 137.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.83ms. Allocated memory is still 175.1MB. Free memory was 137.6MB in the beginning and 136.7MB in the end (delta: 880.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 169.02ms. Allocated memory is still 175.1MB. Free memory was 136.5MB in the beginning and 127.9MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 869614.41ms. Allocated memory was 175.1MB in the beginning and 1.1GB in the end (delta: 922.7MB). Free memory was 127.4MB in the beginning and 259.3MB in the end (delta: -131.9MB). Peak memory consumption was 791.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 51]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 757 known predicates. - TimeoutResultAtElement [Line: 46]: 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 757 known predicates. - TimeoutResultAtElement [Line: 46]: 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 757 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 32 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 869.5s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 12, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 312.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 1412, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 550.6s InterpolantComputationTime, 2804 NumberOfCodeBlocks, 2804 NumberOfCodeBlocksAsserted, 281 NumberOfCheckSat, 4170 ConstructedInterpolants, 4 QuantifiedInterpolants, 97018 SizeOfPredicates, 111 NumberOfNonLiveVariables, 3403 ConjunctsInSsa, 1704 ConjunctsInUnsatCore, 36 InterpolantComputations, 0 PerfectInterpolantSequences, 24768/93027 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