/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/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_THREAD_INSTANCE --traceabstraction.maximal.amount.of.steps.the.threads.are.allowed.to.take.successively 1 --traceabstraction.enable.heuristic.with.loops.as.step.type false --traceabstraction.considered.threads.and.their.maximal.amount.of.steps X --traceabstraction.defines.what.statements.are.considered.a.step.in.por LOOP -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-1.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-32214ab [2023-05-19 20:16:30,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-05-19 20:16:30,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-05-19 20:16:30,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-05-19 20:16:30,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-05-19 20:16:30,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-05-19 20:16:30,488 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-05-19 20:16:30,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-05-19 20:16:30,492 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-05-19 20:16:30,496 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-05-19 20:16:30,497 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-05-19 20:16:30,498 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-05-19 20:16:30,498 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-05-19 20:16:30,500 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-05-19 20:16:30,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-05-19 20:16:30,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-05-19 20:16:30,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-05-19 20:16:30,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-05-19 20:16:30,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-05-19 20:16:30,508 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-05-19 20:16:30,509 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-05-19 20:16:30,509 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-05-19 20:16:30,510 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-05-19 20:16:30,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-05-19 20:16:30,516 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-05-19 20:16:30,516 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-05-19 20:16:30,516 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-05-19 20:16:30,518 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-05-19 20:16:30,518 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-05-19 20:16:30,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-05-19 20:16:30,518 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-05-19 20:16:30,519 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-05-19 20:16:30,520 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-05-19 20:16:30,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-05-19 20:16:30,521 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-05-19 20:16:30,521 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-05-19 20:16:30,522 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-05-19 20:16:30,522 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-05-19 20:16:30,522 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-05-19 20:16:30,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-05-19 20:16:30,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-05-19 20:16:30,524 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-19 20:16:30,549 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-19 20:16:30,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-19 20:16:30,549 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-19 20:16:30,550 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-19 20:16:30,550 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-19 20:16:30,550 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-19 20:16:30,551 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-19 20:16:30,551 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-19 20:16:30,551 INFO L138 SettingsManager]: * Use SBE=true [2023-05-19 20:16:30,551 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-19 20:16:30,552 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-19 20:16:30,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-19 20:16:30,552 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-19 20:16:30,552 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-19 20:16:30,552 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-19 20:16:30,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-19 20:16:30,552 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-19 20:16:30,552 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-19 20:16:30,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-19 20:16:30,553 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-19 20:16:30,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-19 20:16:30,553 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-19 20:16:30,553 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-19 20:16:30,553 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-19 20:16:30,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-19 20:16:30,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-19 20:16:30,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-19 20:16:30,554 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-19 20:16:30,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-19 20:16:30,555 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-19 20:16:30,555 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-19 20:16:30,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-19 20:16:30,555 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-19 20:16:30,555 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-19 20:16:30,555 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-19 20:16:30,555 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-19 20:16:30,555 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> X Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> LOOP [2023-05-19 20:16:30,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-19 20:16:30,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-19 20:16:30,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-19 20:16:30,775 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-05-19 20:16:30,776 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2023-05-19 20:16:30,777 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-1.wvr.bpl [2023-05-19 20:16:30,777 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-1.wvr.bpl' [2023-05-19 20:16:30,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-19 20:16:30,794 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-05-19 20:16:30,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-19 20:16:30,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-19 20:16:30,795 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-19 20:16:30,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:16:30" (1/1) ... [2023-05-19 20:16:30,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:16:30" (1/1) ... [2023-05-19 20:16:30,814 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-05-19 20:16:30,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-19 20:16:30,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-19 20:16:30,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-19 20:16:30,817 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-19 20:16:30,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:16:30" (1/1) ... [2023-05-19 20:16:30,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:16:30" (1/1) ... [2023-05-19 20:16:30,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:16:30" (1/1) ... [2023-05-19 20:16:30,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:16:30" (1/1) ... [2023-05-19 20:16:30,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:16:30" (1/1) ... [2023-05-19 20:16:30,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:16:30" (1/1) ... [2023-05-19 20:16:30,829 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:16:30" (1/1) ... [2023-05-19 20:16:30,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:16:30" (1/1) ... [2023-05-19 20:16:30,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-19 20:16:30,830 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-19 20:16:30,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-19 20:16:30,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-19 20:16:30,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:16:30" (1/1) ... [2023-05-19 20:16:30,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-19 20:16:30,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 20:16:30,851 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) [2023-05-19 20:16:30,861 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 [2023-05-19 20:16:30,883 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-05-19 20:16:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-05-19 20:16:30,883 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-05-19 20:16:30,883 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-05-19 20:16:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-05-19 20:16:30,883 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-05-19 20:16:30,883 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-05-19 20:16:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-19 20:16:30,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-19 20:16:30,884 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2023-05-19 20:16:30,920 INFO L235 CfgBuilder]: Building ICFG [2023-05-19 20:16:30,923 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-19 20:16:31,021 INFO L276 CfgBuilder]: Performing block encoding [2023-05-19 20:16:31,026 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-19 20:16:31,026 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-05-19 20:16:31,027 INFO L202 PluginConnector]: Adding new model misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.05 08:16:31 BoogieIcfgContainer [2023-05-19 20:16:31,027 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-19 20:16:31,036 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-19 20:16:31,036 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-19 20:16:31,050 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-19 20:16:31,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:16:30" (1/2) ... [2023-05-19 20:16:31,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a57f166 and model type misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.05 08:16:31, skipping insertion in model container [2023-05-19 20:16:31,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.05 08:16:31" (2/2) ... [2023-05-19 20:16:31,052 INFO L112 eAbstractionObserver]: Analyzing ICFG misc-1.wvr.bpl [2023-05-19 20:16:31,057 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-19 20:16:31,063 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-19 20:16:31,063 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-19 20:16:31,063 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-19 20:16:31,088 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-05-19 20:16:31,124 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-19 20:16:31,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-19 20:16:31,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 20:16:31,130 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) [2023-05-19 20:16:31,131 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 [2023-05-19 20:16:31,162 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-19 20:16:31,197 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-19 20:16:31,203 INFO L357 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, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5df3cc82, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-19 20:16:31,203 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-05-19 20:16:31,298 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-19 20:16:31,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 20:16:31,302 INFO L85 PathProgramCache]: Analyzing trace with hash 2056539922, now seen corresponding path program 1 times [2023-05-19 20:16:31,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 20:16:31,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239513288] [2023-05-19 20:16:31,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 20:16:31,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 20:16:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 20:16:31,582 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:16:31,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 20:16:31,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239513288] [2023-05-19 20:16:31,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239513288] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 20:16:31,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775565340] [2023-05-19 20:16:31,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 20:16:31,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:16:31,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 20:16:31,586 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) [2023-05-19 20:16:31,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-05-19 20:16:31,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 20:16:31,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 6 conjunts are in the unsatisfiable core [2023-05-19 20:16:31,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 20:16:31,713 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:16:31,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 20:16:31,760 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:16:31,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775565340] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 20:16:31,761 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 20:16:31,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 6 [2023-05-19 20:16:31,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216136317] [2023-05-19 20:16:31,763 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 20:16:31,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-05-19 20:16:31,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 20:16:31,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-05-19 20:16:31,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-05-19 20:16:31,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:16:31,790 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 20:16:31,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 states have internal predecessors, (30), 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) [2023-05-19 20:16:31,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:16:31,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-19 20:16:31,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-05-19 20:16:32,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-05-19 20:16:32,171 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-19 20:16:32,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 20:16:32,171 INFO L85 PathProgramCache]: Analyzing trace with hash -127152416, now seen corresponding path program 1 times [2023-05-19 20:16:32,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 20:16:32,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95949566] [2023-05-19 20:16:32,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 20:16:32,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 20:16:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 20:16:33,077 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:16:33,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 20:16:33,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95949566] [2023-05-19 20:16:33,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95949566] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 20:16:33,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015418092] [2023-05-19 20:16:33,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 20:16:33,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:16:33,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 20:16:33,085 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) [2023-05-19 20:16:33,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-05-19 20:16:33,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 20:16:33,116 WARN L261 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 31 conjunts are in the unsatisfiable core [2023-05-19 20:16:33,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 20:16:33,490 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2023-05-19 20:16:33,521 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:16:33,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 20:16:33,760 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 20:16:33,760 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 23 treesize of output 48 [2023-05-19 20:16:33,818 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:16:33,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:16:33,820 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2023-05-19 20:16:33,850 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:16:33,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015418092] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 20:16:33,851 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 20:16:33,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 11] total 29 [2023-05-19 20:16:33,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977525207] [2023-05-19 20:16:33,852 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 20:16:33,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-05-19 20:16:33,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 20:16:33,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-05-19 20:16:33,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=742, Unknown=0, NotChecked=0, Total=870 [2023-05-19 20:16:33,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:16:33,856 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 20:16:33,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.433333333333333) internal successors, (73), 29 states have internal predecessors, (73), 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) [2023-05-19 20:16:33,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-19 20:16:33,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:16:34,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:16:34,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-05-19 20:16:34,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-05-19 20:16:34,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:16:34,651 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-19 20:16:34,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 20:16:34,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1611530286, now seen corresponding path program 2 times [2023-05-19 20:16:34,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 20:16:34,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481873088] [2023-05-19 20:16:34,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 20:16:34,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 20:16:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 20:16:34,752 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-19 20:16:34,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 20:16:34,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481873088] [2023-05-19 20:16:34,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481873088] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 20:16:34,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892219342] [2023-05-19 20:16:34,753 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-19 20:16:34,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:16:34,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 20:16:34,757 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) [2023-05-19 20:16:34,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-05-19 20:16:34,786 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-19 20:16:34,786 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 20:16:34,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2023-05-19 20:16:34,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 20:16:34,820 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-19 20:16:34,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 20:16:34,862 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-19 20:16:34,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892219342] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 20:16:34,863 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 20:16:34,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 7 [2023-05-19 20:16:34,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358663278] [2023-05-19 20:16:34,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 20:16:34,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-05-19 20:16:34,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 20:16:34,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-05-19 20:16:34,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-05-19 20:16:34,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:16:34,864 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 20:16:34,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 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) [2023-05-19 20:16:34,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:16:34,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2023-05-19 20:16:34,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:16:35,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:16:35,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-19 20:16:35,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-05-19 20:16:35,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-05-19 20:16:35,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:16:35,255 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-19 20:16:35,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 20:16:35,256 INFO L85 PathProgramCache]: Analyzing trace with hash -2089428253, now seen corresponding path program 1 times [2023-05-19 20:16:35,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 20:16:35,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661850644] [2023-05-19 20:16:35,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 20:16:35,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 20:16:35,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 20:16:35,311 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-19 20:16:35,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 20:16:35,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661850644] [2023-05-19 20:16:35,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661850644] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 20:16:35,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462482417] [2023-05-19 20:16:35,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 20:16:35,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:16:35,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 20:16:35,326 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) [2023-05-19 20:16:35,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-05-19 20:16:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 20:16:35,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 8 conjunts are in the unsatisfiable core [2023-05-19 20:16:35,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 20:16:35,462 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-19 20:16:35,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 20:16:35,516 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-19 20:16:35,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462482417] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 20:16:35,516 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 20:16:35,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 7 [2023-05-19 20:16:35,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222844327] [2023-05-19 20:16:35,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 20:16:35,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-05-19 20:16:35,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 20:16:35,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-05-19 20:16:35,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-05-19 20:16:35,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:16:35,518 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 20:16:35,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 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) [2023-05-19 20:16:35,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:16:35,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-19 20:16:35,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-05-19 20:16:35,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:16:35,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:16:35,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-19 20:16:35,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-05-19 20:16:35,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:16:35,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-05-19 20:16:35,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:16:35,814 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-19 20:16:35,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 20:16:35,814 INFO L85 PathProgramCache]: Analyzing trace with hash -361890385, now seen corresponding path program 1 times [2023-05-19 20:16:35,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 20:16:35,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273626731] [2023-05-19 20:16:35,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 20:16:35,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 20:16:35,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 20:16:36,455 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:16:36,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 20:16:36,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273626731] [2023-05-19 20:16:36,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273626731] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 20:16:36,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7579044] [2023-05-19 20:16:36,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 20:16:36,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:16:36,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 20:16:36,458 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) [2023-05-19 20:16:36,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-05-19 20:16:36,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 20:16:36,491 WARN L261 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 41 conjunts are in the unsatisfiable core [2023-05-19 20:16:36,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 20:16:37,080 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 21 [2023-05-19 20:16:37,114 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:16:37,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 20:16:37,624 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 20:16:37,625 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 33 treesize of output 98 [2023-05-19 20:16:37,767 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:16:37,767 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:16:37,768 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:16:37,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:16:37,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:16:37,769 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 7 [2023-05-19 20:16:37,813 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:16:37,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7579044] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 20:16:37,813 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 20:16:37,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 16, 16] total 44 [2023-05-19 20:16:37,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182524854] [2023-05-19 20:16:37,813 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 20:16:37,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2023-05-19 20:16:37,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 20:16:37,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2023-05-19 20:16:37,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=1781, Unknown=0, NotChecked=0, Total=1980 [2023-05-19 20:16:37,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:16:37,815 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 20:16:37,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 2.2222222222222223) internal successors, (100), 44 states have internal predecessors, (100), 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) [2023-05-19 20:16:37,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:16:37,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-19 20:16:37,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-05-19 20:16:37,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:16:37,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:16:40,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:16:40,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-19 20:16:40,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-05-19 20:16:40,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:16:40,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-05-19 20:16:40,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-05-19 20:16:40,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:16:40,308 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-19 20:16:40,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 20:16:40,309 INFO L85 PathProgramCache]: Analyzing trace with hash -197541681, now seen corresponding path program 2 times [2023-05-19 20:16:40,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 20:16:40,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020982086] [2023-05-19 20:16:40,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 20:16:40,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 20:16:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 20:16:41,392 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 1 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:16:41,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 20:16:41,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020982086] [2023-05-19 20:16:41,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020982086] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 20:16:41,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208493944] [2023-05-19 20:16:41,393 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-19 20:16:41,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:16:41,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 20:16:41,409 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) [2023-05-19 20:16:41,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-05-19 20:16:41,445 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-19 20:16:41,445 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 20:16:41,446 WARN L261 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 61 conjunts are in the unsatisfiable core [2023-05-19 20:16:41,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 20:16:42,765 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 19 [2023-05-19 20:16:42,817 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:16:42,817 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 20:16:44,034 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 20:16:44,035 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 53 treesize of output 258 [2023-05-19 20:16:45,669 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:16:45,670 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:16:45,670 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:16:45,671 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:16:45,671 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:16:45,671 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:16:45,672 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:16:45,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:16:45,673 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:16:45,673 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:16:45,673 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:16:45,674 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:16:45,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:16:45,675 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:16:45,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:16:45,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:16:45,677 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 10 disjoint index pairs (out of 45 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 7 [2023-05-19 20:16:45,733 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:16:45,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208493944] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 20:16:45,734 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 20:16:45,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 26, 26] total 76 [2023-05-19 20:16:45,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267444983] [2023-05-19 20:16:45,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 20:16:45,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2023-05-19 20:16:45,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 20:16:45,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2023-05-19 20:16:45,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=456, Invalid=5396, Unknown=0, NotChecked=0, Total=5852 [2023-05-19 20:16:45,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:16:45,736 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 20:16:45,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 2.064935064935065) internal successors, (159), 76 states have internal predecessors, (159), 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) [2023-05-19 20:16:45,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:16:45,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-19 20:16:45,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-05-19 20:16:45,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:16:45,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2023-05-19 20:16:45,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:16:55,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:16:55,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-19 20:16:55,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-05-19 20:16:55,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:16:55,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-05-19 20:16:55,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2023-05-19 20:16:55,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-05-19 20:16:55,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:16:55,335 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-19 20:16:55,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 20:16:55,335 INFO L85 PathProgramCache]: Analyzing trace with hash -826226730, now seen corresponding path program 3 times [2023-05-19 20:16:55,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 20:16:55,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133453705] [2023-05-19 20:16:55,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 20:16:55,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 20:16:55,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 20:16:57,445 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 38 proven. 192 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2023-05-19 20:16:57,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 20:16:57,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133453705] [2023-05-19 20:16:57,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133453705] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 20:16:57,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803058539] [2023-05-19 20:16:57,445 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-19 20:16:57,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:16:57,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 20:16:57,447 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) [2023-05-19 20:16:57,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-05-19 20:16:57,505 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-05-19 20:16:57,506 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 20:16:57,508 WARN L261 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 123 conjunts are in the unsatisfiable core [2023-05-19 20:16:57,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 20:17:01,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:01,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:02,365 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 20:17:02,366 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 127 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 63 case distinctions, treesize of input 91 treesize of output 535 [2023-05-19 20:17:04,345 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 456 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:17:04,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 20:17:10,899 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:17:10,899 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:17:10,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:10,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:10,902 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:17:10,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:10,926 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 20:17:10,928 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 48 treesize of output 88 [2023-05-19 20:17:11,007 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:17:11,007 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:17:11,008 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:17:11,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:11,009 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:17:11,009 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:17:11,009 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:17:11,009 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:17:11,010 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:17:11,010 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:17:11,010 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:17:11,011 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 20:17:11,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:11,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:11,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 20:17:11,016 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 7 [2023-05-19 20:17:11,127 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 309 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-05-19 20:17:11,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803058539] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 20:17:11,127 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 20:17:11,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 60, 32] total 108 [2023-05-19 20:17:11,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136850534] [2023-05-19 20:17:11,128 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 20:17:11,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 109 states [2023-05-19 20:17:11,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 20:17:11,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2023-05-19 20:17:11,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=634, Invalid=11138, Unknown=0, NotChecked=0, Total=11772 [2023-05-19 20:17:11,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:17:11,140 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 20:17:11,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 109 states, 109 states have (on average 1.9541284403669725) internal successors, (213), 108 states have internal predecessors, (213), 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) [2023-05-19 20:17:11,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:17:11,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-19 20:17:11,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-05-19 20:17:11,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:17:11,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2023-05-19 20:17:11,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 111 states. [2023-05-19 20:17:11,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:17:48,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:17:48,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-19 20:17:48,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-05-19 20:17:48,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-19 20:17:48,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-05-19 20:17:48,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2023-05-19 20:17:48,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2023-05-19 20:17:48,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-05-19 20:17:49,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-05-19 20:17:49,010 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-19 20:17:49,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 20:17:49,010 INFO L85 PathProgramCache]: Analyzing trace with hash 671898917, now seen corresponding path program 4 times [2023-05-19 20:17:49,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 20:17:49,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506039780] [2023-05-19 20:17:49,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 20:17:49,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 20:17:49,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 20:17:51,296 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 34 proven. 224 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-05-19 20:17:51,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 20:17:51,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506039780] [2023-05-19 20:17:51,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506039780] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 20:17:51,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045227237] [2023-05-19 20:17:51,296 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-05-19 20:17:51,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:17:51,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 20:17:51,298 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) [2023-05-19 20:17:51,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-05-19 20:17:51,341 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-05-19 20:17:51,341 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 20:17:51,343 WARN L261 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 133 conjunts are in the unsatisfiable core [2023-05-19 20:17:51,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 20:17:55,344 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 66 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 33 [2023-05-19 20:17:55,418 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 0 proven. 558 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:17:55,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 20:18:03,922 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 20:18:03,923 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 276 case distinctions, treesize of input 123 treesize of output 1448 [2023-05-19 20:18:39,553 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2023-05-19 20:18:39,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-05-19 20:18:39,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:18:39,771 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Maybe an infinite loop at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:345) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-05-19 20:18:39,775 INFO L158 Benchmark]: Toolchain (without parser) took 128980.65ms. Allocated memory was 192.9MB in the beginning and 697.3MB in the end (delta: 504.4MB). Free memory was 151.3MB in the beginning and 309.3MB in the end (delta: -157.9MB). Peak memory consumption was 440.3MB. Max. memory is 8.0GB. [2023-05-19 20:18:39,775 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 192.9MB. Free memory is still 152.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-05-19 20:18:39,776 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.38ms. Allocated memory is still 192.9MB. Free memory was 151.2MB in the beginning and 149.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-05-19 20:18:39,776 INFO L158 Benchmark]: Boogie Preprocessor took 13.04ms. Allocated memory is still 192.9MB. Free memory was 149.7MB in the beginning and 148.6MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-05-19 20:18:39,777 INFO L158 Benchmark]: RCFGBuilder took 196.92ms. Allocated memory is still 192.9MB. Free memory was 148.6MB in the beginning and 139.3MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-05-19 20:18:39,777 INFO L158 Benchmark]: TraceAbstraction took 128738.07ms. Allocated memory was 192.9MB in the beginning and 697.3MB in the end (delta: 504.4MB). Free memory was 168.1MB in the beginning and 309.3MB in the end (delta: -141.1MB). Peak memory consumption was 455.9MB. Max. memory is 8.0GB. [2023-05-19 20:18:39,793 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10ms. Allocated memory is still 192.9MB. Free memory is still 152.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.38ms. Allocated memory is still 192.9MB. Free memory was 151.2MB in the beginning and 149.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.04ms. Allocated memory is still 192.9MB. Free memory was 149.7MB in the beginning and 148.6MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 196.92ms. Allocated memory is still 192.9MB. Free memory was 148.6MB in the beginning and 139.3MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 128738.07ms. Allocated memory was 192.9MB in the beginning and 697.3MB in the end (delta: 504.4MB). Free memory was 168.1MB in the beginning and 309.3MB in the end (delta: -141.1MB). Peak memory consumption was 455.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Maybe an infinite loop de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Maybe an infinite loop: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-05-19 20:18:39,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2023-05-19 20:18:40,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...