/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/buffer-series-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-19 11:29:51,360 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-19 11:29:51,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-19 11:29:51,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-19 11:29:51,380 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-19 11:29:51,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-19 11:29:51,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-19 11:29:51,382 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-19 11:29:51,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-19 11:29:51,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-19 11:29:51,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-19 11:29:51,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-19 11:29:51,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-19 11:29:51,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-19 11:29:51,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-19 11:29:51,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-19 11:29:51,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-19 11:29:51,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-19 11:29:51,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-19 11:29:51,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-19 11:29:51,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-19 11:29:51,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-19 11:29:51,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-19 11:29:51,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-19 11:29:51,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-19 11:29:51,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-19 11:29:51,396 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-19 11:29:51,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-19 11:29:51,396 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-19 11:29:51,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-19 11:29:51,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-19 11:29:51,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-19 11:29:51,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-19 11:29:51,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-19 11:29:51,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-19 11:29:51,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-19 11:29:51,399 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-19 11:29:51,399 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-19 11:29:51,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-19 11:29:51,400 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-19 11:29:51,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-19 11:29:51,401 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 [2022-02-19 11:29:51,414 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-19 11:29:51,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-19 11:29:51,414 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-19 11:29:51,415 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-19 11:29:51,415 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-19 11:29:51,415 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-19 11:29:51,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-19 11:29:51,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-19 11:29:51,416 INFO L138 SettingsManager]: * Use SBE=true [2022-02-19 11:29:51,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-19 11:29:51,416 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-19 11:29:51,416 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-19 11:29:51,416 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-19 11:29:51,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-19 11:29:51,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-19 11:29:51,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-19 11:29:51,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-19 11:29:51,417 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-19 11:29:51,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-19 11:29:51,417 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-19 11:29:51,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-19 11:29:51,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-19 11:29:51,417 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-19 11:29:51,417 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-19 11:29:51,417 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-19 11:29:51,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 11:29:51,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-19 11:29:51,418 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-19 11:29:51,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-19 11:29:51,418 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-19 11:29:51,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-19 11:29:51,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-19 11:29:51,418 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-19 11:29:51,418 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-19 11:29:51,418 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-19 11:29:51,419 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-19 11:29:51,419 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-02-19 11:29:51,422 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-02-19 11:29:51,423 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-19 11:29:51,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-19 11:29:51,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-19 11:29:51,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-19 11:29:51,588 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-19 11:29:51,589 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-19 11:29:51,590 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/buffer-series-array.wvr.bpl [2022-02-19 11:29:51,590 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/buffer-series-array.wvr.bpl' [2022-02-19 11:29:51,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-19 11:29:51,607 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-19 11:29:51,608 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-19 11:29:51,608 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-19 11:29:51,608 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-19 11:29:51,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:29:51" (1/1) ... [2022-02-19 11:29:51,621 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:29:51" (1/1) ... [2022-02-19 11:29:51,626 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-19 11:29:51,627 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-19 11:29:51,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-19 11:29:51,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-19 11:29:51,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-19 11:29:51,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:29:51" (1/1) ... [2022-02-19 11:29:51,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:29:51" (1/1) ... [2022-02-19 11:29:51,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:29:51" (1/1) ... [2022-02-19 11:29:51,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:29:51" (1/1) ... [2022-02-19 11:29:51,640 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:29:51" (1/1) ... [2022-02-19 11:29:51,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:29:51" (1/1) ... [2022-02-19 11:29:51,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:29:51" (1/1) ... [2022-02-19 11:29:51,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-19 11:29:51,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-19 11:29:51,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-19 11:29:51,644 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-19 11:29:51,645 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:29:51" (1/1) ... [2022-02-19 11:29:51,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 11:29:51,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:29:51,684 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-19 11:29:51,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-19 11:29:51,728 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-19 11:29:51,728 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-19 11:29:51,728 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-19 11:29:51,728 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-19 11:29:51,728 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-19 11:29:51,728 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-19 11:29:51,728 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-19 11:29:51,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-19 11:29:51,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-19 11:29:51,729 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-19 11:29:51,729 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-19 11:29:51,729 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-19 11:29:51,730 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-02-19 11:29:51,731 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-19 11:29:51,732 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-19 11:29:51,732 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-19 11:29:51,770 INFO L234 CfgBuilder]: Building ICFG [2022-02-19 11:29:51,772 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-19 11:29:51,899 INFO L275 CfgBuilder]: Performing block encoding [2022-02-19 11:29:51,913 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-19 11:29:51,913 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-19 11:29:51,914 INFO L202 PluginConnector]: Adding new model buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 11:29:51 BoogieIcfgContainer [2022-02-19 11:29:51,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-19 11:29:51,916 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-19 11:29:51,916 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-19 11:29:51,918 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-19 11:29:51,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:29:51" (1/2) ... [2022-02-19 11:29:51,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76395ae0 and model type buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 11:29:51, skipping insertion in model container [2022-02-19 11:29:51,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 11:29:51" (2/2) ... [2022-02-19 11:29:51,919 INFO L111 eAbstractionObserver]: Analyzing ICFG buffer-series-array.wvr.bpl [2022-02-19 11:29:51,922 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-19 11:29:51,923 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-19 11:29:51,923 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-19 11:29:51,923 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-19 11:29:51,967 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-19 11:29:52,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-19 11:29:52,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:29:52,020 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-19 11:29:52,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-19 11:29:52,071 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-19 11:29:52,076 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 [2022-02-19 11:29:52,076 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-19 11:29:52,478 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 550 transitions and produced 476 states. [2022-02-19 11:29:52,480 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 11:29:52,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:29:52,486 INFO L85 PathProgramCache]: Analyzing trace with hash 544937668, now seen corresponding path program 1 times [2022-02-19 11:29:52,495 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:29:52,495 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499312843] [2022-02-19 11:29:52,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:29:52,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:29:52,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:29:53,215 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 284 proven. 232 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-02-19 11:29:53,215 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:29:53,215 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499312843] [2022-02-19 11:29:53,216 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499312843] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:29:53,218 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502724358] [2022-02-19 11:29:53,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:29:53,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:29:53,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:29:53,230 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:29:53,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-19 11:29:53,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:29:53,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 20 conjunts are in the unsatisfiable core [2022-02-19 11:29:53,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:29:53,689 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 360 proven. 4 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-02-19 11:29:53,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:29:53,943 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 360 proven. 4 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-02-19 11:29:53,943 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502724358] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:29:53,943 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:29:53,943 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 12, 12] total 41 [2022-02-19 11:29:53,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982018454] [2022-02-19 11:29:53,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:29:53,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-02-19 11:29:53,955 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:29:53,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-02-19 11:29:53,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=356, Invalid=1366, Unknown=0, NotChecked=0, Total=1722 [2022-02-19 11:29:53,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:29:53,983 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:29:53,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 4.595238095238095) internal successors, (193), 41 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 11:29:53,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:29:54,897 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1045 transitions and produced 875 states. [2022-02-19 11:29:54,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-19 11:29:54,927 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-19 11:29:55,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-02-19 11:29:55,114 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 11:29:55,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:29:55,115 INFO L85 PathProgramCache]: Analyzing trace with hash -897615446, now seen corresponding path program 2 times [2022-02-19 11:29:55,115 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:29:55,115 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234990099] [2022-02-19 11:29:55,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:29:55,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:29:55,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:29:57,030 INFO L134 CoverageAnalysis]: Checked inductivity of 1794 backedges. 374 proven. 1370 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-02-19 11:29:57,030 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:29:57,030 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234990099] [2022-02-19 11:29:57,031 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234990099] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:29:57,031 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754244065] [2022-02-19 11:29:57,031 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 11:29:57,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:29:57,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:29:57,032 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:29:57,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-19 11:29:57,115 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 11:29:57,116 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:29:57,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 45 conjunts are in the unsatisfiable core [2022-02-19 11:29:57,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:29:58,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1794 backedges. 1143 proven. 515 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-02-19 11:29:58,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:29:58,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1794 backedges. 1143 proven. 515 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-02-19 11:29:58,699 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754244065] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:29:58,699 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:29:58,700 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [74, 23, 23] total 100 [2022-02-19 11:29:58,700 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662654708] [2022-02-19 11:29:58,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:29:58,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2022-02-19 11:29:58,702 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:29:58,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2022-02-19 11:29:58,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1228, Invalid=8872, Unknown=0, NotChecked=0, Total=10100 [2022-02-19 11:29:58,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:29:58,705 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:29:58,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 101 states have (on average 3.3267326732673266) internal successors, (336), 100 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 11:29:58,706 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-19 11:29:58,706 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:30:04,968 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1364 transitions and produced 1135 states. [2022-02-19 11:30:04,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-19 11:30:04,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2022-02-19 11:30:04,985 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-19 11:30:05,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:30:05,184 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 11:30:05,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:30:05,184 INFO L85 PathProgramCache]: Analyzing trace with hash 460457942, now seen corresponding path program 3 times [2022-02-19 11:30:05,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:30:05,184 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264393758] [2022-02-19 11:30:05,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:30:05,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:30:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:30:05,872 INFO L134 CoverageAnalysis]: Checked inductivity of 3098 backedges. 1843 proven. 1119 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-02-19 11:30:05,873 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:30:05,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264393758] [2022-02-19 11:30:05,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264393758] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:30:05,879 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330462810] [2022-02-19 11:30:05,883 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-19 11:30:05,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:30:05,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:30:05,885 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:30:05,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-19 11:30:05,969 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2022-02-19 11:30:05,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:30:05,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 13 conjunts are in the unsatisfiable core [2022-02-19 11:30:05,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:30:06,299 INFO L134 CoverageAnalysis]: Checked inductivity of 3098 backedges. 338 proven. 4 refuted. 0 times theorem prover too weak. 2756 trivial. 0 not checked. [2022-02-19 11:30:06,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:30:06,493 INFO L134 CoverageAnalysis]: Checked inductivity of 3098 backedges. 338 proven. 4 refuted. 0 times theorem prover too weak. 2756 trivial. 0 not checked. [2022-02-19 11:30:06,493 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330462810] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:30:06,493 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:30:06,493 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 7, 7] total 39 [2022-02-19 11:30:06,493 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763106213] [2022-02-19 11:30:06,493 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:30:06,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-02-19 11:30:06,494 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:30:06,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-02-19 11:30:06,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=525, Invalid=957, Unknown=0, NotChecked=0, Total=1482 [2022-02-19 11:30:06,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:30:06,495 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:30:06,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 6.076923076923077) internal successors, (237), 39 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 11:30:06,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-19 11:30:06,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 138 states. [2022-02-19 11:30:06,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:30:08,749 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1651 transitions and produced 1346 states. [2022-02-19 11:30:08,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:30:08,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:30:08,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:30:08,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-02-19 11:30:08,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:30:08,963 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 11:30:08,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:30:08,964 INFO L85 PathProgramCache]: Analyzing trace with hash 89764035, now seen corresponding path program 4 times [2022-02-19 11:30:08,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:30:08,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068378103] [2022-02-19 11:30:08,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:30:08,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:30:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:30:09,683 INFO L134 CoverageAnalysis]: Checked inductivity of 4572 backedges. 2622 proven. 1782 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-02-19 11:30:09,684 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:30:09,684 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068378103] [2022-02-19 11:30:09,684 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068378103] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:30:09,684 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350463569] [2022-02-19 11:30:09,684 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-19 11:30:09,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:30:09,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:30:09,685 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:30:09,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-19 11:30:09,828 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-19 11:30:09,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:30:09,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 81 conjunts are in the unsatisfiable core [2022-02-19 11:30:09,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:30:10,344 INFO L134 CoverageAnalysis]: Checked inductivity of 4572 backedges. 2701 proven. 1703 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-02-19 11:30:10,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:30:10,861 INFO L134 CoverageAnalysis]: Checked inductivity of 4572 backedges. 2701 proven. 1703 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-02-19 11:30:10,862 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350463569] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:30:10,862 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:30:10,862 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39, 39] total 40 [2022-02-19 11:30:10,862 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562066308] [2022-02-19 11:30:10,862 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:30:10,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-02-19 11:30:10,863 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:30:10,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-02-19 11:30:10,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=783, Invalid=857, Unknown=0, NotChecked=0, Total=1640 [2022-02-19 11:30:10,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:30:10,864 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:30:10,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 5.634146341463414) internal successors, (231), 40 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 11:30:10,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:30:10,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:30:10,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:30:10,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:30:11,554 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1882 transitions and produced 1522 states. [2022-02-19 11:30:11,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:30:11,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:30:11,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:30:11,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:30:11,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-19 11:30:11,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:30:11,771 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 11:30:11,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:30:11,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1667839905, now seen corresponding path program 5 times [2022-02-19 11:30:11,772 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:30:11,772 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288616921] [2022-02-19 11:30:11,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:30:11,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:30:11,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:30:12,611 INFO L134 CoverageAnalysis]: Checked inductivity of 6077 backedges. 3518 proven. 2391 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-02-19 11:30:12,611 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:30:12,611 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288616921] [2022-02-19 11:30:12,611 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288616921] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:30:12,611 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459665104] [2022-02-19 11:30:12,611 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-19 11:30:12,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:30:12,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:30:12,614 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:30:12,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-19 11:30:12,867 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 48 check-sat command(s) [2022-02-19 11:30:12,867 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:30:12,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 70 conjunts are in the unsatisfiable core [2022-02-19 11:30:12,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:30:15,152 INFO L134 CoverageAnalysis]: Checked inductivity of 6077 backedges. 2194 proven. 2492 refuted. 0 times theorem prover too weak. 1391 trivial. 0 not checked. [2022-02-19 11:30:15,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:30:17,560 INFO L134 CoverageAnalysis]: Checked inductivity of 6077 backedges. 3172 proven. 1502 refuted. 0 times theorem prover too weak. 1403 trivial. 0 not checked. [2022-02-19 11:30:17,560 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459665104] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:30:17,560 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:30:17,560 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 69, 61] total 174 [2022-02-19 11:30:17,560 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739429414] [2022-02-19 11:30:17,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:30:17,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 175 states [2022-02-19 11:30:17,561 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:30:17,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 175 interpolants. [2022-02-19 11:30:17,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5572, Invalid=24878, Unknown=0, NotChecked=0, Total=30450 [2022-02-19 11:30:17,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:30:17,567 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:30:17,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 175 states, 175 states have (on average 4.097142857142857) internal successors, (717), 174 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 11:30:17,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:30:17,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:30:17,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:30:17,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:30:17,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:30:30,619 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3069 transitions and produced 2349 states. [2022-02-19 11:30:30,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:30:30,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:30:30,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:30:30,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:30:30,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 313 states. [2022-02-19 11:30:30,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-19 11:30:30,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:30:30,836 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 11:30:30,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:30:30,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1678253178, now seen corresponding path program 6 times [2022-02-19 11:30:30,836 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:30:30,836 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322501303] [2022-02-19 11:30:30,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:30:30,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:30:31,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:30:33,565 INFO L134 CoverageAnalysis]: Checked inductivity of 17708 backedges. 9114 proven. 3290 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2022-02-19 11:30:33,566 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:30:33,566 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322501303] [2022-02-19 11:30:33,566 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322501303] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:30:33,566 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25278054] [2022-02-19 11:30:33,566 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-19 11:30:33,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:30:33,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:30:33,567 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:30:33,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-19 11:30:34,797 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 97 check-sat command(s) [2022-02-19 11:30:34,797 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:30:34,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 1272 conjuncts, 40 conjunts are in the unsatisfiable core [2022-02-19 11:30:34,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:30:36,094 INFO L134 CoverageAnalysis]: Checked inductivity of 17708 backedges. 6977 proven. 22 refuted. 0 times theorem prover too weak. 10709 trivial. 0 not checked. [2022-02-19 11:30:36,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:30:37,435 INFO L134 CoverageAnalysis]: Checked inductivity of 17708 backedges. 6977 proven. 22 refuted. 0 times theorem prover too weak. 10709 trivial. 0 not checked. [2022-02-19 11:30:37,436 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25278054] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:30:37,436 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:30:37,436 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 32, 32] total 152 [2022-02-19 11:30:37,436 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997185526] [2022-02-19 11:30:37,436 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:30:37,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 152 states [2022-02-19 11:30:37,437 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:30:37,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 152 interpolants. [2022-02-19 11:30:37,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5163, Invalid=17789, Unknown=0, NotChecked=0, Total=22952 [2022-02-19 11:30:37,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:30:37,443 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:30:37,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 152 states, 152 states have (on average 3.1578947368421053) internal successors, (480), 152 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 11:30:37,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:30:37,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:30:37,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:30:37,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:30:37,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 313 states. [2022-02-19 11:30:37,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:30:46,689 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3739 transitions and produced 2716 states. [2022-02-19 11:30:46,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:30:46,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:30:46,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:30:46,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:30:46,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 401 states. [2022-02-19 11:30:46,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2022-02-19 11:30:46,713 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-02-19 11:30:46,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:30:46,908 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 11:30:46,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:30:46,908 INFO L85 PathProgramCache]: Analyzing trace with hash -105501859, now seen corresponding path program 7 times [2022-02-19 11:30:46,908 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:30:46,908 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782575311] [2022-02-19 11:30:46,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:30:46,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:30:47,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:30:59,880 INFO L134 CoverageAnalysis]: Checked inductivity of 28419 backedges. 6992 proven. 18063 refuted. 0 times theorem prover too weak. 3364 trivial. 0 not checked. [2022-02-19 11:30:59,880 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:30:59,880 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782575311] [2022-02-19 11:30:59,880 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782575311] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:30:59,880 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464784065] [2022-02-19 11:30:59,880 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-19 11:30:59,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:30:59,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:30:59,881 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:30:59,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-19 11:31:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:31:00,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 1791 conjuncts, 120 conjunts are in the unsatisfiable core [2022-02-19 11:31:00,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:31:12,368 INFO L134 CoverageAnalysis]: Checked inductivity of 28419 backedges. 14010 proven. 6701 refuted. 0 times theorem prover too weak. 7708 trivial. 0 not checked. [2022-02-19 11:31:12,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:31:20,679 INFO L134 CoverageAnalysis]: Checked inductivity of 28419 backedges. 15285 proven. 5396 refuted. 0 times theorem prover too weak. 7738 trivial. 0 not checked. [2022-02-19 11:31:20,679 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464784065] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:31:20,680 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:31:20,680 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [255, 119, 61] total 433 [2022-02-19 11:31:20,680 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393600643] [2022-02-19 11:31:20,680 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:31:20,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 434 states [2022-02-19 11:31:20,681 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:31:20,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 434 interpolants. [2022-02-19 11:31:20,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16471, Invalid=171451, Unknown=0, NotChecked=0, Total=187922 [2022-02-19 11:31:20,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:31:20,693 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:31:20,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 434 states, 434 states have (on average 2.912442396313364) internal successors, (1264), 433 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 11:31:20,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:31:20,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:31:20,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:31:20,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:31:20,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 401 states. [2022-02-19 11:31:20,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 158 states. [2022-02-19 11:31:20,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:32:10,179 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4330 transitions and produced 3092 states. [2022-02-19 11:32:10,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:32:10,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:32:10,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:32:10,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:32:10,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 434 states. [2022-02-19 11:32:10,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2022-02-19 11:32:10,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 601 states. [2022-02-19 11:32:10,201 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-02-19 11:32:10,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-02-19 11:32:10,401 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 11:32:10,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:32:10,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1622858938, now seen corresponding path program 8 times [2022-02-19 11:32:10,402 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:32:10,402 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771461686] [2022-02-19 11:32:10,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:32:10,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:32:10,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:32:13,769 INFO L134 CoverageAnalysis]: Checked inductivity of 36737 backedges. 18462 proven. 5204 refuted. 0 times theorem prover too weak. 13071 trivial. 0 not checked. [2022-02-19 11:32:13,769 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:32:13,769 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771461686] [2022-02-19 11:32:13,769 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771461686] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:32:13,769 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980504225] [2022-02-19 11:32:13,770 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 11:32:13,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:32:13,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:32:13,771 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:32:13,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-19 11:32:14,025 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 11:32:14,026 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:32:14,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 2105 conjuncts, 120 conjunts are in the unsatisfiable core [2022-02-19 11:32:14,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:32:14,707 INFO L134 CoverageAnalysis]: Checked inductivity of 36737 backedges. 18499 proven. 5204 refuted. 0 times theorem prover too weak. 13034 trivial. 0 not checked. [2022-02-19 11:32:14,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:32:15,429 INFO L134 CoverageAnalysis]: Checked inductivity of 36737 backedges. 18499 proven. 5204 refuted. 0 times theorem prover too weak. 13034 trivial. 0 not checked. [2022-02-19 11:32:15,430 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980504225] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:32:15,430 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:32:15,430 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [115, 58, 58] total 116 [2022-02-19 11:32:15,432 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134009403] [2022-02-19 11:32:15,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:32:15,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 117 states [2022-02-19 11:32:15,436 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:32:15,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 117 interpolants. [2022-02-19 11:32:15,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5133, Invalid=8439, Unknown=0, NotChecked=0, Total=13572 [2022-02-19 11:32:15,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:32:15,438 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:32:15,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 117 states, 117 states have (on average 3.700854700854701) internal successors, (433), 116 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 11:32:15,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:32:15,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:32:15,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:32:15,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:32:15,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 434 states. [2022-02-19 11:32:15,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 158 states. [2022-02-19 11:32:15,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 601 states. [2022-02-19 11:32:15,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:32:19,177 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4506 transitions and produced 3196 states. [2022-02-19 11:32:19,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:32:19,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:32:19,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:32:19,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:32:19,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 434 states. [2022-02-19 11:32:19,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2022-02-19 11:32:19,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 601 states. [2022-02-19 11:32:19,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-02-19 11:32:19,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-19 11:32:19,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:32:19,401 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 11:32:19,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:32:19,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1176455880, now seen corresponding path program 9 times [2022-02-19 11:32:19,401 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:32:19,401 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440371615] [2022-02-19 11:32:19,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:32:19,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:32:19,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:32:23,875 INFO L134 CoverageAnalysis]: Checked inductivity of 38245 backedges. 19109 proven. 6713 refuted. 0 times theorem prover too weak. 12423 trivial. 0 not checked. [2022-02-19 11:32:23,875 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:32:23,875 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440371615] [2022-02-19 11:32:23,875 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440371615] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:32:23,875 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880393514] [2022-02-19 11:32:23,875 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-19 11:32:23,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:32:23,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:32:23,877 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:32:23,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-19 11:32:24,422 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 34 check-sat command(s) [2022-02-19 11:32:24,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:32:24,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 1262 conjuncts, 69 conjunts are in the unsatisfiable core [2022-02-19 11:32:24,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:32:26,164 INFO L134 CoverageAnalysis]: Checked inductivity of 38245 backedges. 11160 proven. 922 refuted. 0 times theorem prover too weak. 26163 trivial. 0 not checked. [2022-02-19 11:32:26,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:32:26,891 INFO L134 CoverageAnalysis]: Checked inductivity of 38245 backedges. 11160 proven. 922 refuted. 0 times theorem prover too weak. 26163 trivial. 0 not checked. [2022-02-19 11:32:26,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880393514] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:32:26,891 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:32:26,891 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [131, 34, 34] total 165 [2022-02-19 11:32:26,892 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136671905] [2022-02-19 11:32:26,892 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:32:26,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 165 states [2022-02-19 11:32:26,893 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:32:26,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 165 interpolants. [2022-02-19 11:32:26,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7159, Invalid=19901, Unknown=0, NotChecked=0, Total=27060 [2022-02-19 11:32:26,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:32:26,897 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:32:26,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 165 states, 165 states have (on average 3.3454545454545452) internal successors, (552), 165 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 11:32:26,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:32:26,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:32:26,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:32:26,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:32:26,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 434 states. [2022-02-19 11:32:26,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 158 states. [2022-02-19 11:32:26,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 601 states. [2022-02-19 11:32:26,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2022-02-19 11:32:26,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:32:35,457 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4692 transitions and produced 3309 states. [2022-02-19 11:32:35,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:32:35,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:32:35,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:32:35,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:32:35,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 434 states. [2022-02-19 11:32:35,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2022-02-19 11:32:35,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 601 states. [2022-02-19 11:32:35,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-02-19 11:32:35,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-02-19 11:32:35,477 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-19 11:32:35,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-02-19 11:32:35,677 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 11:32:35,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:32:35,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1743024964, now seen corresponding path program 10 times [2022-02-19 11:32:35,677 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:32:35,678 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180431522] [2022-02-19 11:32:35,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:32:35,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:32:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:32:41,008 INFO L134 CoverageAnalysis]: Checked inductivity of 40085 backedges. 19613 proven. 8413 refuted. 0 times theorem prover too weak. 12059 trivial. 0 not checked. [2022-02-19 11:32:41,008 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:32:41,009 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180431522] [2022-02-19 11:32:41,009 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180431522] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:32:41,009 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958893113] [2022-02-19 11:32:41,009 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-19 11:32:41,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:32:41,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:32:41,010 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:32:41,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-19 11:32:41,284 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-19 11:32:41,284 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:32:41,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 2229 conjuncts, 152 conjunts are in the unsatisfiable core [2022-02-19 11:32:41,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:32:42,709 INFO L134 CoverageAnalysis]: Checked inductivity of 40085 backedges. 19634 proven. 8413 refuted. 0 times theorem prover too weak. 12038 trivial. 0 not checked. [2022-02-19 11:32:42,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:32:44,048 INFO L134 CoverageAnalysis]: Checked inductivity of 40085 backedges. 19634 proven. 8413 refuted. 0 times theorem prover too weak. 12038 trivial. 0 not checked. [2022-02-19 11:32:44,048 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958893113] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:32:44,048 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:32:44,049 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [147, 74, 74] total 148 [2022-02-19 11:32:44,049 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883188136] [2022-02-19 11:32:44,049 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:32:44,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 149 states [2022-02-19 11:32:44,050 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:32:44,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 149 interpolants. [2022-02-19 11:32:44,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8325, Invalid=13727, Unknown=0, NotChecked=0, Total=22052 [2022-02-19 11:32:44,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:32:44,052 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:32:44,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 149 states, 149 states have (on average 3.6577181208053693) internal successors, (545), 148 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 11:32:44,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:32:44,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:32:44,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:32:44,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:32:44,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 434 states. [2022-02-19 11:32:44,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 158 states. [2022-02-19 11:32:44,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 601 states. [2022-02-19 11:32:44,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2022-02-19 11:32:44,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-02-19 11:32:44,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:32:47,478 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4868 transitions and produced 3413 states. [2022-02-19 11:32:47,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:32:47,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:32:47,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:32:47,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:32:47,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 434 states. [2022-02-19 11:32:47,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2022-02-19 11:32:47,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 601 states. [2022-02-19 11:32:47,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-02-19 11:32:47,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-02-19 11:32:47,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2022-02-19 11:32:47,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-02-19 11:32:47,697 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 [2022-02-19 11:32:47,698 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 11:32:47,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:32:47,698 INFO L85 PathProgramCache]: Analyzing trace with hash 287034300, now seen corresponding path program 11 times [2022-02-19 11:32:47,698 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:32:47,698 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740203007] [2022-02-19 11:32:47,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:32:47,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:32:48,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:32:53,091 INFO L134 CoverageAnalysis]: Checked inductivity of 41977 backedges. 19989 proven. 10305 refuted. 0 times theorem prover too weak. 11683 trivial. 0 not checked. [2022-02-19 11:32:53,091 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:32:53,091 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740203007] [2022-02-19 11:32:53,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740203007] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:32:53,092 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024253681] [2022-02-19 11:32:53,092 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-19 11:32:53,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:32:53,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:32:53,094 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:32:53,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-19 11:32:54,844 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 101 check-sat command(s) [2022-02-19 11:32:54,845 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:32:54,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 2285 conjuncts, 181 conjunts are in the unsatisfiable core [2022-02-19 11:32:54,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:33:08,678 INFO L134 CoverageAnalysis]: Checked inductivity of 41977 backedges. 12800 proven. 18649 refuted. 0 times theorem prover too weak. 10528 trivial. 0 not checked. [2022-02-19 11:33:08,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:33:16,952 INFO L134 CoverageAnalysis]: Checked inductivity of 41977 backedges. 19042 proven. 12347 refuted. 0 times theorem prover too weak. 10588 trivial. 0 not checked. [2022-02-19 11:33:16,953 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024253681] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:33:16,953 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:33:16,953 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [163, 180, 87] total 428 [2022-02-19 11:33:16,953 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350477473] [2022-02-19 11:33:16,953 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:33:16,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 429 states [2022-02-19 11:33:16,954 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:33:16,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 429 interpolants. [2022-02-19 11:33:16,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26362, Invalid=157250, Unknown=0, NotChecked=0, Total=183612 [2022-02-19 11:33:16,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:33:16,968 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:33:16,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 429 states, 429 states have (on average 3.4965034965034967) internal successors, (1500), 428 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 11:33:16,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:33:16,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:33:16,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:33:16,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:33:16,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 434 states. [2022-02-19 11:33:16,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 158 states. [2022-02-19 11:33:16,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 601 states. [2022-02-19 11:33:16,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2022-02-19 11:33:16,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-02-19 11:33:16,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 149 states. [2022-02-19 11:33:16,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:34:10,157 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5132 transitions and produced 3569 states. [2022-02-19 11:34:10,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:34:10,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:34:10,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:34:10,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:34:10,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 434 states. [2022-02-19 11:34:10,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2022-02-19 11:34:10,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 601 states. [2022-02-19 11:34:10,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-02-19 11:34:10,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-02-19 11:34:10,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2022-02-19 11:34:10,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 503 states. [2022-02-19 11:34:10,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-19 11:34:10,375 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 [2022-02-19 11:34:10,376 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 11:34:10,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:34:10,376 INFO L85 PathProgramCache]: Analyzing trace with hash 134520766, now seen corresponding path program 12 times [2022-02-19 11:34:10,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:34:10,376 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233377735] [2022-02-19 11:34:10,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:34:10,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:34:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:34:16,925 INFO L134 CoverageAnalysis]: Checked inductivity of 45175 backedges. 20298 proven. 13502 refuted. 0 times theorem prover too weak. 11375 trivial. 0 not checked. [2022-02-19 11:34:16,926 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:34:16,926 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233377735] [2022-02-19 11:34:16,926 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233377735] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:34:16,926 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119309893] [2022-02-19 11:34:16,926 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-19 11:34:16,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:34:16,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:34:16,927 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:34:16,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-02-19 11:34:17,852 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 67 check-sat command(s) [2022-02-19 11:34:17,852 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:34:17,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 1661 conjuncts, 75 conjunts are in the unsatisfiable core [2022-02-19 11:34:17,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:34:21,072 INFO L134 CoverageAnalysis]: Checked inductivity of 45175 backedges. 12265 proven. 1052 refuted. 0 times theorem prover too weak. 31858 trivial. 0 not checked. [2022-02-19 11:34:21,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:34:21,919 INFO L134 CoverageAnalysis]: Checked inductivity of 45175 backedges. 12265 proven. 1052 refuted. 0 times theorem prover too weak. 31858 trivial. 0 not checked. [2022-02-19 11:34:21,919 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119309893] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:34:21,919 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:34:21,919 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [187, 36, 36] total 223 [2022-02-19 11:34:21,920 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61800032] [2022-02-19 11:34:21,920 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:34:21,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 223 states [2022-02-19 11:34:21,921 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:34:21,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 223 interpolants. [2022-02-19 11:34:21,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13964, Invalid=35542, Unknown=0, NotChecked=0, Total=49506 [2022-02-19 11:34:21,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:34:21,925 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:34:21,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 223 states, 223 states have (on average 3.1614349775784754) internal successors, (705), 223 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 11:34:21,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:34:21,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:34:21,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:34:21,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:34:21,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 434 states. [2022-02-19 11:34:21,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 158 states. [2022-02-19 11:34:21,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 601 states. [2022-02-19 11:34:21,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2022-02-19 11:34:21,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-02-19 11:34:21,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 149 states. [2022-02-19 11:34:21,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 503 states. [2022-02-19 11:34:21,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:34:38,563 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5318 transitions and produced 3682 states. [2022-02-19 11:34:38,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:34:38,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:34:38,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:34:38,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:34:38,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 434 states. [2022-02-19 11:34:38,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2022-02-19 11:34:38,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 601 states. [2022-02-19 11:34:38,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-02-19 11:34:38,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-02-19 11:34:38,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2022-02-19 11:34:38,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 503 states. [2022-02-19 11:34:38,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 256 states. [2022-02-19 11:34:38,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-02-19 11:34:38,768 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 [2022-02-19 11:34:38,769 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 11:34:38,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:34:38,769 INFO L85 PathProgramCache]: Analyzing trace with hash 951025600, now seen corresponding path program 13 times [2022-02-19 11:34:38,769 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:34:38,769 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137852697] [2022-02-19 11:34:38,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:34:38,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:34:39,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:34:55,908 INFO L134 CoverageAnalysis]: Checked inductivity of 47695 backedges. 10882 proven. 27971 refuted. 0 times theorem prover too weak. 8842 trivial. 0 not checked. [2022-02-19 11:34:55,909 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:34:55,909 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137852697] [2022-02-19 11:34:55,909 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137852697] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:34:55,909 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643340091] [2022-02-19 11:34:55,909 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-19 11:34:55,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:34:55,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:34:55,935 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:34:55,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-02-19 11:34:56,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:34:56,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 2437 conjuncts, 210 conjunts are in the unsatisfiable core [2022-02-19 11:34:56,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:35:16,351 INFO L134 CoverageAnalysis]: Checked inductivity of 47695 backedges. 12998 proven. 24467 refuted. 0 times theorem prover too weak. 10230 trivial. 0 not checked. [2022-02-19 11:35:16,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:35:38,882 INFO L134 CoverageAnalysis]: Checked inductivity of 47695 backedges. 14303 proven. 23132 refuted. 0 times theorem prover too weak. 10260 trivial. 0 not checked. [2022-02-19 11:35:38,882 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643340091] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:35:38,882 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:35:38,882 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [353, 209, 150] total 710 [2022-02-19 11:35:38,883 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448990598] [2022-02-19 11:35:38,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:35:38,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 711 states [2022-02-19 11:35:38,884 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:35:38,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 711 interpolants. [2022-02-19 11:35:38,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48504, Invalid=456306, Unknown=0, NotChecked=0, Total=504810 [2022-02-19 11:35:38,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:35:38,910 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:35:38,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 711 states, 711 states have (on average 2.869198312236287) internal successors, (2040), 710 states have internal predecessors, (2040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 11:35:38,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:35:38,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:35:38,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:35:38,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:35:38,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 434 states. [2022-02-19 11:35:38,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 158 states. [2022-02-19 11:35:38,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 601 states. [2022-02-19 11:35:38,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2022-02-19 11:35:38,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-02-19 11:35:38,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 149 states. [2022-02-19 11:35:38,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 503 states. [2022-02-19 11:35:38,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 256 states. [2022-02-19 11:35:38,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:36:15,818 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5340 transitions and produced 3695 states. [2022-02-19 11:36:15,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:36:15,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:36:15,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:36:15,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:36:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 434 states. [2022-02-19 11:36:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2022-02-19 11:36:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 601 states. [2022-02-19 11:36:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-02-19 11:36:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-02-19 11:36:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2022-02-19 11:36:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 503 states. [2022-02-19 11:36:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 256 states. [2022-02-19 11:36:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 247 states. [2022-02-19 11:36:15,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-02-19 11:36:16,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:36:16,035 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 11:36:16,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:36:16,036 INFO L85 PathProgramCache]: Analyzing trace with hash -790403348, now seen corresponding path program 14 times [2022-02-19 11:36:16,036 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:36:16,036 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304118365] [2022-02-19 11:36:16,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:36:16,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:36:16,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:36:19,920 INFO L134 CoverageAnalysis]: Checked inductivity of 48005 backedges. 24105 proven. 16409 refuted. 0 times theorem prover too weak. 7491 trivial. 0 not checked. [2022-02-19 11:36:19,920 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:36:19,920 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304118365] [2022-02-19 11:36:19,920 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304118365] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:36:19,920 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617092679] [2022-02-19 11:36:19,920 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 11:36:19,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:36:19,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:36:19,921 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:36:19,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-02-19 11:36:20,216 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 11:36:20,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:36:20,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 2444 conjuncts, 209 conjunts are in the unsatisfiable core [2022-02-19 11:36:20,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:36:21,270 INFO L134 CoverageAnalysis]: Checked inductivity of 48005 backedges. 24312 proven. 16202 refuted. 0 times theorem prover too weak. 7491 trivial. 0 not checked. [2022-02-19 11:36:21,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:36:22,547 INFO L134 CoverageAnalysis]: Checked inductivity of 48005 backedges. 24312 proven. 16202 refuted. 0 times theorem prover too weak. 7491 trivial. 0 not checked. [2022-02-19 11:36:22,547 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617092679] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:36:22,547 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:36:22,547 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [103, 103, 103] total 104 [2022-02-19 11:36:22,548 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696474478] [2022-02-19 11:36:22,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:36:22,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2022-02-19 11:36:22,549 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:36:22,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2022-02-19 11:36:22,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5359, Invalid=5561, Unknown=0, NotChecked=0, Total=10920 [2022-02-19 11:36:22,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:36:22,550 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:36:22,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 105 states have (on average 5.247619047619048) internal successors, (551), 104 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 11:36:22,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:36:22,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:36:22,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:36:22,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:36:22,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 434 states. [2022-02-19 11:36:22,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 158 states. [2022-02-19 11:36:22,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 601 states. [2022-02-19 11:36:22,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2022-02-19 11:36:22,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-02-19 11:36:22,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 149 states. [2022-02-19 11:36:22,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 503 states. [2022-02-19 11:36:22,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 256 states. [2022-02-19 11:36:22,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 247 states. [2022-02-19 11:36:22,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:36:25,980 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5571 transitions and produced 3829 states. [2022-02-19 11:36:25,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:36:25,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:36:25,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:36:25,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:36:25,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 434 states. [2022-02-19 11:36:25,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2022-02-19 11:36:25,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 601 states. [2022-02-19 11:36:25,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-02-19 11:36:25,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-02-19 11:36:25,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2022-02-19 11:36:25,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 503 states. [2022-02-19 11:36:25,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 256 states. [2022-02-19 11:36:25,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 247 states. [2022-02-19 11:36:25,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-02-19 11:36:26,002 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-02-19 11:36:26,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:36:26,200 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 11:36:26,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:36:26,201 INFO L85 PathProgramCache]: Analyzing trace with hash -99426226, now seen corresponding path program 15 times [2022-02-19 11:36:26,201 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:36:26,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666796528] [2022-02-19 11:36:26,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:36:26,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:36:26,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:36:30,142 INFO L134 CoverageAnalysis]: Checked inductivity of 51750 backedges. 26346 proven. 17892 refuted. 0 times theorem prover too weak. 7512 trivial. 0 not checked. [2022-02-19 11:36:30,142 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:36:30,142 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666796528] [2022-02-19 11:36:30,142 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666796528] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:36:30,143 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229150235] [2022-02-19 11:36:30,143 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-19 11:36:30,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:36:30,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:36:30,151 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:36:30,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-02-19 11:36:31,617 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 65 check-sat command(s) [2022-02-19 11:36:31,617 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:36:31,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 1948 conjuncts, 155 conjunts are in the unsatisfiable core [2022-02-19 11:36:31,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:36:37,815 INFO L134 CoverageAnalysis]: Checked inductivity of 51750 backedges. 24322 proven. 1194 refuted. 0 times theorem prover too weak. 26234 trivial. 0 not checked. [2022-02-19 11:36:37,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:36:43,240 INFO L134 CoverageAnalysis]: Checked inductivity of 51750 backedges. 24322 proven. 1194 refuted. 0 times theorem prover too weak. 26234 trivial. 0 not checked. [2022-02-19 11:36:43,241 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229150235] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:36:43,241 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:36:43,241 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [110, 112, 112] total 297 [2022-02-19 11:36:43,241 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416380414] [2022-02-19 11:36:43,241 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:36:43,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 298 states [2022-02-19 11:36:43,243 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:36:43,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 298 interpolants. [2022-02-19 11:36:43,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23762, Invalid=64744, Unknown=0, NotChecked=0, Total=88506 [2022-02-19 11:36:43,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:36:43,253 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:36:43,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 298 states, 298 states have (on average 4.446308724832215) internal successors, (1325), 297 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 11:36:43,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:36:43,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:36:43,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:36:43,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:36:43,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 434 states. [2022-02-19 11:36:43,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 158 states. [2022-02-19 11:36:43,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 601 states. [2022-02-19 11:36:43,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2022-02-19 11:36:43,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-02-19 11:36:43,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 149 states. [2022-02-19 11:36:43,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 503 states. [2022-02-19 11:36:43,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 256 states. [2022-02-19 11:36:43,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 247 states. [2022-02-19 11:36:43,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2022-02-19 11:36:43,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:37:41,171 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 7344 transitions and produced 4882 states. [2022-02-19 11:37:41,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:37:41,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:37:41,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:37:41,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:37:41,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 434 states. [2022-02-19 11:37:41,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2022-02-19 11:37:41,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 601 states. [2022-02-19 11:37:41,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-02-19 11:37:41,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-02-19 11:37:41,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2022-02-19 11:37:41,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 503 states. [2022-02-19 11:37:41,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 256 states. [2022-02-19 11:37:41,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 247 states. [2022-02-19 11:37:41,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-02-19 11:37:41,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 439 states. [2022-02-19 11:37:41,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-02-19 11:37:41,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-02-19 11:37:41,387 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 11:37:41,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:37:41,388 INFO L85 PathProgramCache]: Analyzing trace with hash 584462549, now seen corresponding path program 16 times [2022-02-19 11:37:41,388 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:37:41,388 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135326276] [2022-02-19 11:37:41,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:37:41,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:37:41,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:37:45,125 INFO L134 CoverageAnalysis]: Checked inductivity of 94117 backedges. 34913 proven. 25799 refuted. 0 times theorem prover too weak. 33405 trivial. 0 not checked. [2022-02-19 11:37:45,125 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:37:45,125 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135326276] [2022-02-19 11:37:45,125 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135326276] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:37:45,125 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085485674] [2022-02-19 11:37:45,126 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-19 11:37:45,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:37:45,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:37:45,127 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:37:45,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-02-19 11:37:45,580 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-19 11:37:45,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:37:45,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 3515 conjuncts, 240 conjunts are in the unsatisfiable core [2022-02-19 11:37:45,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:38:05,174 INFO L134 CoverageAnalysis]: Checked inductivity of 94117 backedges. 40222 proven. 24132 refuted. 0 times theorem prover too weak. 29763 trivial. 0 not checked. [2022-02-19 11:38:05,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:38:17,399 INFO L134 CoverageAnalysis]: Checked inductivity of 94117 backedges. 43355 proven. 20974 refuted. 0 times theorem prover too weak. 29788 trivial. 0 not checked. [2022-02-19 11:38:17,399 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1085485674] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:38:17,399 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:38:17,400 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [117, 239, 121] total 475 [2022-02-19 11:38:17,400 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445543820] [2022-02-19 11:38:17,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:38:17,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 476 states [2022-02-19 11:38:17,401 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:38:17,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 476 interpolants. [2022-02-19 11:38:17,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39037, Invalid=187063, Unknown=0, NotChecked=0, Total=226100 [2022-02-19 11:38:17,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:38:17,418 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:38:17,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 476 states, 476 states have (on average 4.292016806722689) internal successors, (2043), 475 states have internal predecessors, (2043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 11:38:17,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:38:17,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:38:17,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:38:17,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:38:17,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 434 states. [2022-02-19 11:38:17,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 158 states. [2022-02-19 11:38:17,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 601 states. [2022-02-19 11:38:17,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2022-02-19 11:38:17,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-02-19 11:38:17,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 149 states. [2022-02-19 11:38:17,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 503 states. [2022-02-19 11:38:17,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 256 states. [2022-02-19 11:38:17,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 247 states. [2022-02-19 11:38:17,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2022-02-19 11:38:17,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 439 states. [2022-02-19 11:38:17,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:39:00,424 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 7575 transitions and produced 5016 states. [2022-02-19 11:39:00,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:39:00,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:39:00,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:39:00,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:39:00,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 434 states. [2022-02-19 11:39:00,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2022-02-19 11:39:00,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 601 states. [2022-02-19 11:39:00,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-02-19 11:39:00,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-02-19 11:39:00,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2022-02-19 11:39:00,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 503 states. [2022-02-19 11:39:00,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 256 states. [2022-02-19 11:39:00,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 247 states. [2022-02-19 11:39:00,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-02-19 11:39:00,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 439 states. [2022-02-19 11:39:00,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 677 states. [2022-02-19 11:39:00,448 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-02-19 11:39:00,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-02-19 11:39:00,643 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 11:39:00,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:39:00,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1762474353, now seen corresponding path program 17 times [2022-02-19 11:39:00,644 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:39:00,644 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516127695] [2022-02-19 11:39:00,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:39:00,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:39:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:39:04,647 INFO L134 CoverageAnalysis]: Checked inductivity of 98352 backedges. 37447 proven. 27500 refuted. 0 times theorem prover too weak. 33405 trivial. 0 not checked. [2022-02-19 11:39:04,648 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:39:04,648 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516127695] [2022-02-19 11:39:04,648 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516127695] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:39:04,648 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564386139] [2022-02-19 11:39:04,648 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-19 11:39:04,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:39:04,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:39:04,649 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:39:04,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-02-19 11:39:11,955 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 126 check-sat command(s) [2022-02-19 11:39:11,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:39:12,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 3606 conjuncts, 304 conjunts are in the unsatisfiable core [2022-02-19 11:39:12,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:39:43,242 INFO L134 CoverageAnalysis]: Checked inductivity of 98352 backedges. 27396 proven. 45625 refuted. 0 times theorem prover too weak. 25331 trivial. 0 not checked. [2022-02-19 11:39:43,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:40:04,996 INFO L134 CoverageAnalysis]: Checked inductivity of 98352 backedges. 30531 proven. 42460 refuted. 0 times theorem prover too weak. 25361 trivial. 0 not checked. [2022-02-19 11:40:04,997 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564386139] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:40:04,997 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:40:04,997 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [124, 303, 183] total 608 [2022-02-19 11:40:04,997 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080773631] [2022-02-19 11:40:04,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:40:04,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 609 states [2022-02-19 11:40:04,999 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:40:05,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 609 interpolants. [2022-02-19 11:40:05,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59773, Invalid=310499, Unknown=0, NotChecked=0, Total=370272 [2022-02-19 11:40:05,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:40:05,024 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:40:05,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 609 states, 609 states have (on average 4.085385878489327) internal successors, (2488), 608 states have internal predecessors, (2488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 11:40:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:40:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:40:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:40:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:40:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 434 states. [2022-02-19 11:40:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 158 states. [2022-02-19 11:40:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 601 states. [2022-02-19 11:40:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2022-02-19 11:40:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-02-19 11:40:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 149 states. [2022-02-19 11:40:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 503 states. [2022-02-19 11:40:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 256 states. [2022-02-19 11:40:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 247 states. [2022-02-19 11:40:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2022-02-19 11:40:05,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 439 states. [2022-02-19 11:40:05,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 677 states. [2022-02-19 11:40:05,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:41:19,357 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 8776 transitions and produced 5722 states. [2022-02-19 11:41:19,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:41:19,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:41:19,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:41:19,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:41:19,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 434 states. [2022-02-19 11:41:19,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2022-02-19 11:41:19,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 601 states. [2022-02-19 11:41:19,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-02-19 11:41:19,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-02-19 11:41:19,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2022-02-19 11:41:19,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 503 states. [2022-02-19 11:41:19,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 256 states. [2022-02-19 11:41:19,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 247 states. [2022-02-19 11:41:19,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-02-19 11:41:19,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 439 states. [2022-02-19 11:41:19,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 677 states. [2022-02-19 11:41:19,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 888 states. [2022-02-19 11:41:19,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-02-19 11:41:19,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-02-19 11:41:19,587 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 11:41:19,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:41:19,588 INFO L85 PathProgramCache]: Analyzing trace with hash -2131673501, now seen corresponding path program 18 times [2022-02-19 11:41:19,588 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:41:19,588 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601693983] [2022-02-19 11:41:19,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:41:19,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:41:21,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:41:49,598 INFO L134 CoverageAnalysis]: Checked inductivity of 123138 backedges. 63667 proven. 59308 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2022-02-19 11:41:49,599 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:41:49,599 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601693983] [2022-02-19 11:41:49,599 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601693983] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:41:49,599 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928381595] [2022-02-19 11:41:49,599 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-19 11:41:49,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:41:49,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:41:49,600 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:41:49,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-02-19 11:42:08,152 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 177 check-sat command(s) [2022-02-19 11:42:08,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:42:08,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 4005 conjuncts, 293 conjunts are in the unsatisfiable core [2022-02-19 11:42:08,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:42:24,130 INFO L134 CoverageAnalysis]: Checked inductivity of 123138 backedges. 52990 proven. 12947 refuted. 0 times theorem prover too weak. 57201 trivial. 0 not checked. [2022-02-19 11:42:24,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:42:30,794 INFO L134 CoverageAnalysis]: Checked inductivity of 123138 backedges. 52990 proven. 12947 refuted. 0 times theorem prover too weak. 57201 trivial. 0 not checked. [2022-02-19 11:42:30,794 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1928381595] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:42:30,794 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:42:30,795 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [403, 173, 173] total 569 [2022-02-19 11:42:30,795 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782378917] [2022-02-19 11:42:30,795 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:42:30,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 570 states [2022-02-19 11:42:30,797 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:42:30,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 570 interpolants. [2022-02-19 11:42:30,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71003, Invalid=253327, Unknown=0, NotChecked=0, Total=324330 [2022-02-19 11:42:30,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:42:30,826 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:42:30,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 570 states, 570 states have (on average 4.208771929824562) internal successors, (2399), 569 states have internal predecessors, (2399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 11:42:30,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-02-19 11:42:30,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2022-02-19 11:42:30,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2022-02-19 11:42:30,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-19 11:42:30,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 434 states. [2022-02-19 11:42:30,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 158 states. [2022-02-19 11:42:30,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 601 states. [2022-02-19 11:42:30,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2022-02-19 11:42:30,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-02-19 11:42:30,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 149 states. [2022-02-19 11:42:30,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 503 states. [2022-02-19 11:42:30,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 256 states. [2022-02-19 11:42:30,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 247 states. [2022-02-19 11:42:30,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2022-02-19 11:42:30,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 439 states. [2022-02-19 11:42:30,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 677 states. [2022-02-19 11:42:30,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 888 states. [2022-02-19 11:42:30,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-02-19 11:43:52,206 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-19 11:43:52,206 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-19 11:43:52,206 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-19 11:43:52,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-02-19 11:43:52,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-02-19 11:43:52,512 WARN L594 AbstractCegarLoop]: Verification canceled: while executing DepthFirstTraversal. [2022-02-19 11:43:52,514 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-02-19 11:43:52,514 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-02-19 11:43:52,514 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-02-19 11:43:52,514 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-02-19 11:43:52,514 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-02-19 11:43:52,519 INFO L732 BasicCegarLoop]: Path program histogram: [18] [2022-02-19 11:43:52,520 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-19 11:43:52,520 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-19 11:43:52,522 INFO L202 PluginConnector]: Adding new model buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 11:43:52 BasicIcfg [2022-02-19 11:43:52,522 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-19 11:43:52,522 INFO L158 Benchmark]: Toolchain (without parser) took 840914.83ms. Allocated memory was 190.8MB in the beginning and 2.7GB in the end (delta: 2.5GB). Free memory was 154.5MB in the beginning and 340.6MB in the end (delta: -186.1MB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2022-02-19 11:43:52,522 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.38ms. Allocated memory is still 190.8MB. Free memory is still 155.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-19 11:43:52,522 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.42ms. Allocated memory is still 190.8MB. Free memory was 154.4MB in the beginning and 152.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-19 11:43:52,522 INFO L158 Benchmark]: Boogie Preprocessor took 12.89ms. Allocated memory is still 190.8MB. Free memory was 152.8MB in the beginning and 151.9MB in the end (delta: 921.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-19 11:43:52,523 INFO L158 Benchmark]: RCFGBuilder took 270.60ms. Allocated memory is still 190.8MB. Free memory was 151.7MB in the beginning and 141.5MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-19 11:43:52,523 INFO L158 Benchmark]: TraceAbstraction took 840606.16ms. Allocated memory was 190.8MB in the beginning and 2.7GB in the end (delta: 2.5GB). Free memory was 141.0MB in the beginning and 340.6MB in the end (delta: -199.6MB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2022-02-19 11:43:52,524 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 0.38ms. Allocated memory is still 190.8MB. Free memory is still 155.6MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.42ms. Allocated memory is still 190.8MB. Free memory was 154.4MB in the beginning and 152.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 12.89ms. Allocated memory is still 190.8MB. Free memory was 152.8MB in the beginning and 151.9MB in the end (delta: 921.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 270.60ms. Allocated memory is still 190.8MB. Free memory was 151.7MB in the beginning and 141.5MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 840606.16ms. Allocated memory was 190.8MB in the beginning and 2.7GB in the end (delta: 2.5GB). Free memory was 141.0MB in the beginning and 340.6MB in the end (delta: -199.6MB). Peak memory consumption was 2.3GB. 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: 82]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 54 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 840.5s, OverallIterations: 18, TraceHistogramMax: 0, PathProgramHistogramMax: 18, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 464.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 5546, 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: 0.8s SsaConstructionTime, 39.3s SatisfiabilityAnalysisTime, 330.3s InterpolantComputationTime, 28044 NumberOfCodeBlocks, 27003 NumberOfCodeBlocksAsserted, 754 NumberOfCheckSat, 42012 ConstructedInterpolants, 0 QuantifiedInterpolants, 190971 SizeOfPredicates, 24 NumberOfNonLiveVariables, 33314 ConjunctsInSsa, 2397 ConjunctsInUnsatCore, 54 InterpolantComputations, 0 PerfectInterpolantSequences, 1610960/2182464 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