/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-semanticLbe.epf -i ../../../trunk/examples/concurrent/bpl/POPL2023/min2-max2-sample.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.fs.omega-petrinet-638c691-m [2022-09-29 15:00:16,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 15:00:16,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 15:00:16,563 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 15:00:16,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 15:00:16,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 15:00:16,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 15:00:16,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 15:00:16,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 15:00:16,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 15:00:16,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 15:00:16,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 15:00:16,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 15:00:16,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 15:00:16,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 15:00:16,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 15:00:16,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 15:00:16,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 15:00:16,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 15:00:16,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 15:00:16,579 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 15:00:16,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 15:00:16,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 15:00:16,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 15:00:16,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 15:00:16,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 15:00:16,592 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 15:00:16,593 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 15:00:16,608 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-semanticLbe.epf [2022-09-29 15:00:16,629 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 15:00:16,630 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 15:00:16,630 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 15:00:16,630 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 15:00:16,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 15:00:16,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 15:00:16,633 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 15:00:16,633 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-09-29 15:00:16,633 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-09-29 15:00:16,633 INFO L138 SettingsManager]: * Use old map elimination=false [2022-09-29 15:00:16,634 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-09-29 15:00:16,634 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-09-29 15:00:16,634 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-09-29 15:00:16,634 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 15:00:16,634 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 15:00:16,634 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-09-29 15:00:16,634 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 15:00:16,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 15:00:16,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 15:00:16,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-09-29 15:00:16,635 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-09-29 15:00:16,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-09-29 15:00:16,635 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 15:00:16,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 15:00:16,635 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-09-29 15:00:16,635 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 15:00:16,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-09-29 15:00:16,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 15:00:16,635 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 15:00:16,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 15:00:16,636 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 15:00:16,636 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-09-29 15:00:16,636 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 15:00:16,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 15:00:16,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 15:00:16,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 15:00:16,839 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 15:00:16,840 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 15:00:16,841 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/min2-max2-sample.bpl [2022-09-29 15:00:16,841 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/min2-max2-sample.bpl' [2022-09-29 15:00:16,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 15:00:16,870 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-29 15:00:16,872 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-29 15:00:16,872 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-29 15:00:16,872 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-29 15:00:16,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:16" (1/1) ... [2022-09-29 15:00:16,886 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:16" (1/1) ... [2022-09-29 15:00:16,891 INFO L137 Inliner]: procedures = 4, calls = 5, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-09-29 15:00:16,892 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-29 15:00:16,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 15:00:16,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 15:00:16,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 15:00:16,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:16" (1/1) ... [2022-09-29 15:00:16,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:16" (1/1) ... [2022-09-29 15:00:16,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:16" (1/1) ... [2022-09-29 15:00:16,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:16" (1/1) ... [2022-09-29 15:00:16,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:16" (1/1) ... [2022-09-29 15:00:16,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:16" (1/1) ... [2022-09-29 15:00:16,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:16" (1/1) ... [2022-09-29 15:00:16,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 15:00:16,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 15:00:16,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 15:00:16,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 15:00:16,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:16" (1/1) ... [2022-09-29 15:00:16,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:16,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:16,932 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-09-29 15:00:16,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-09-29 15:00:16,962 INFO L124 BoogieDeclarations]: Specification and implementation of procedure computeMax given in one single declaration [2022-09-29 15:00:16,962 INFO L130 BoogieDeclarations]: Found specification of procedure computeMax [2022-09-29 15:00:16,962 INFO L138 BoogieDeclarations]: Found implementation of procedure computeMax [2022-09-29 15:00:16,962 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-29 15:00:16,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 15:00:16,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 15:00:16,962 INFO L124 BoogieDeclarations]: Specification and implementation of procedure sample given in one single declaration [2022-09-29 15:00:16,963 INFO L130 BoogieDeclarations]: Found specification of procedure sample [2022-09-29 15:00:16,963 INFO L138 BoogieDeclarations]: Found implementation of procedure sample [2022-09-29 15:00:16,963 INFO L124 BoogieDeclarations]: Specification and implementation of procedure computeMin given in one single declaration [2022-09-29 15:00:16,963 INFO L130 BoogieDeclarations]: Found specification of procedure computeMin [2022-09-29 15:00:16,963 INFO L138 BoogieDeclarations]: Found implementation of procedure computeMin [2022-09-29 15:00:16,963 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-29 15:00:16,998 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 15:00:16,999 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 15:00:17,098 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 15:00:17,108 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 15:00:17,108 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-09-29 15:00:17,110 INFO L202 PluginConnector]: Adding new model min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 03:00:17 BoogieIcfgContainer [2022-09-29 15:00:17,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 15:00:17,111 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-09-29 15:00:17,111 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-09-29 15:00:17,113 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-09-29 15:00:17,114 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 15:00:17,114 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:16" (1/2) ... [2022-09-29 15:00:17,116 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2499abfc and model type min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.09 03:00:17, skipping insertion in model container [2022-09-29 15:00:17,116 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 15:00:17,116 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 03:00:17" (2/2) ... [2022-09-29 15:00:17,117 INFO L322 chiAutomizerObserver]: Analyzing ICFG min2-max2-sample.bpl [2022-09-29 15:00:17,208 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-09-29 15:00:17,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 49 transitions, 135 flow [2022-09-29 15:00:17,255 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 15:00:17,256 INFO L123 PetriNetUnfolderBase]: 5/39 cut-off events. [2022-09-29 15:00:17,256 INFO L124 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2022-09-29 15:00:17,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 39 events. 5/39 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 102 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2022-09-29 15:00:17,259 INFO L82 GeneralOperation]: Start removeDead. Operand has 55 places, 49 transitions, 135 flow [2022-09-29 15:00:17,269 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 39 transitions, 105 flow [2022-09-29 15:00:17,275 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-09-29 15:00:17,285 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 39 transitions, 105 flow [2022-09-29 15:00:17,287 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 39 transitions, 105 flow [2022-09-29 15:00:17,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 39 transitions, 105 flow [2022-09-29 15:00:17,297 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 15:00:17,297 INFO L123 PetriNetUnfolderBase]: 5/39 cut-off events. [2022-09-29 15:00:17,297 INFO L124 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2022-09-29 15:00:17,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 39 events. 5/39 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 99 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2022-09-29 15:00:17,299 INFO L116 LiptonReduction]: Number of co-enabled transitions 810 [2022-09-29 15:00:17,408 INFO L131 LiptonReduction]: Checked pairs total: 1249 [2022-09-29 15:00:17,408 INFO L133 LiptonReduction]: Total number of compositions: 5 [2022-09-29 15:00:17,422 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-09-29 15:00:17,423 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-09-29 15:00:17,423 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-09-29 15:00:17,423 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-09-29 15:00:17,423 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-09-29 15:00:17,423 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-09-29 15:00:17,424 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-09-29 15:00:17,424 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-09-29 15:00:17,425 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-09-29 15:00:17,758 INFO L131 ngComponentsAnalysis]: Automaton has 783 accepting balls. 2886 [2022-09-29 15:00:17,758 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 15:00:17,758 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 15:00:17,761 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-09-29 15:00:17,762 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-09-29 15:00:17,762 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-09-29 15:00:17,762 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 3129 states, but on-demand construction may add more states [2022-09-29 15:00:17,808 INFO L131 ngComponentsAnalysis]: Automaton has 783 accepting balls. 2886 [2022-09-29 15:00:17,808 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 15:00:17,808 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 15:00:17,808 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-09-29 15:00:17,809 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-09-29 15:00:17,812 INFO L733 eck$LassoCheckResult]: Stem: 58#[ULTIMATE.startENTRY]don't care [98] ULTIMATE.startENTRY-->computeMinENTRY: Formula: (= v_computeMinThread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{computeMinThread1of1ForFork0_x=v_computeMinThread1of1ForFork0_x_2, computeMinThread1of1ForFork0_thidvar0=v_computeMinThread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[computeMinThread1of1ForFork0_x, computeMinThread1of1ForFork0_thidvar0] 61#[computeMinENTRY, L69]don't care [84] computeMinENTRY-->L33: Formula: (= v_array_min_6 0) InVars {} OutVars{array_min=v_array_min_6} AuxVars[] AssignedVars[array_min] 63#[L33, L69]don't care [85] L33-->L36-1: Formula: (= v_i1_7 0) InVars {} OutVars{i1=v_i1_7} AuxVars[] AssignedVars[i1] 69#[L36-1, L69]don't care [2022-09-29 15:00:17,813 INFO L735 eck$LassoCheckResult]: Loop: 69#[L36-1, L69]don't care [86] L36-1-->L36: Formula: (< v_i1_2 v_N_3) InVars {i1=v_i1_2, N=v_N_3} OutVars{i1=v_i1_2, N=v_N_3} AuxVars[] AssignedVars[] 83#[L36, L69]don't care [88] L36-->L36-1: Formula: (and (= (+ v_i1_9 1) v_i1_8) (= v_array_min_7 (let ((.cse0 (select v_A_5 v_i1_9))) (ite (< v_array_min_8 .cse0) v_array_min_8 .cse0)))) InVars {A=v_A_5, i1=v_i1_9, array_min=v_array_min_8} OutVars{A=v_A_5, i1=v_i1_8, array_min=v_array_min_7} AuxVars[] AssignedVars[array_min, i1] 69#[L36-1, L69]don't care [2022-09-29 15:00:17,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:17,820 INFO L85 PathProgramCache]: Analyzing trace with hash 126658, now seen corresponding path program 1 times [2022-09-29 15:00:17,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:17,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538455463] [2022-09-29 15:00:17,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:17,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:17,882 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:17,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:17,903 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:17,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:17,905 INFO L85 PathProgramCache]: Analyzing trace with hash 3715, now seen corresponding path program 1 times [2022-09-29 15:00:17,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:17,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075529679] [2022-09-29 15:00:17,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:17,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:17,915 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:17,928 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:17,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:17,929 INFO L85 PathProgramCache]: Analyzing trace with hash 121721092, now seen corresponding path program 1 times [2022-09-29 15:00:17,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:17,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890534043] [2022-09-29 15:00:17,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:17,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:17,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:17,935 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:17,955 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:18,096 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 15:00:18,097 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 15:00:18,097 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 15:00:18,097 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 15:00:18,097 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 15:00:18,097 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:18,097 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 15:00:18,097 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 15:00:18,097 INFO L133 ssoRankerPreferences]: Filename of dumped script: min2-max2-sample.bpl_BEv2_Iteration1_Lasso [2022-09-29 15:00:18,097 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 15:00:18,097 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 15:00:18,109 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 15:00:18,115 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 15:00:18,117 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 15:00:18,206 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 15:00:18,209 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 15:00:18,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:18,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:18,211 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-09-29 15:00:18,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-09-29 15:00:18,229 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-09-29 15:00:18,236 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:18,236 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:18,236 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:00:18,237 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:18,240 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:00:18,240 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:00:18,252 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:00:18,268 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-09-29 15:00:18,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:18,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:18,270 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-09-29 15:00:18,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-09-29 15:00:18,273 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-09-29 15:00:18,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:18,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 15:00:18,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:18,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:00:18,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:18,280 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 15:00:18,281 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 15:00:18,292 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:00:18,308 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-09-29 15:00:18,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:18,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:18,309 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-09-29 15:00:18,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-09-29 15:00:18,311 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-09-29 15:00:18,317 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:18,317 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:18,318 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-09-29 15:00:18,318 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:18,341 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2022-09-29 15:00:18,342 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-09-29 15:00:18,370 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:00:18,388 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-09-29 15:00:18,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:18,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:18,390 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-09-29 15:00:18,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-09-29 15:00:18,412 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-09-29 15:00:18,419 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:18,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:18,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:00:18,420 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:18,423 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:00:18,423 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:00:18,441 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 15:00:18,463 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2022-09-29 15:00:18,463 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2022-09-29 15:00:18,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:18,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:18,465 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-09-29 15:00:18,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-09-29 15:00:18,468 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 15:00:18,475 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-09-29 15:00:18,475 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 15:00:18,476 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(N, i1) = 1*N - 1*i1 Supporting invariants [] [2022-09-29 15:00:18,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-09-29 15:00:18,493 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 15:00:18,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:18,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:00:18,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 15:00:18,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:00:18,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:00:18,542 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 15:00:18,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:00:18,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 15:00:18,594 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-09-29 15:00:18,596 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 3129 states, but on-demand construction may add more states Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 15:00:18,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-09-29 15:00:18,967 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 3129 states, but on-demand construction may add more states. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) Result 12007 states and 65185 transitions. Complement of second has 8 states. [2022-09-29 15:00:18,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-09-29 15:00:18,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 15:00:18,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 133 transitions. [2022-09-29 15:00:18,977 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 133 transitions. Stem has 3 letters. Loop has 2 letters. [2022-09-29 15:00:18,978 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:00:18,978 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 133 transitions. Stem has 5 letters. Loop has 2 letters. [2022-09-29 15:00:18,978 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:00:18,978 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 133 transitions. Stem has 3 letters. Loop has 4 letters. [2022-09-29 15:00:18,978 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:00:18,978 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12007 states and 65185 transitions. [2022-09-29 15:00:19,328 INFO L131 ngComponentsAnalysis]: Automaton has 1326 accepting balls. 4236 [2022-09-29 15:00:19,581 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12007 states to 10439 states and 57226 transitions. [2022-09-29 15:00:19,582 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5393 [2022-09-29 15:00:19,614 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7722 [2022-09-29 15:00:19,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10439 states and 57226 transitions. [2022-09-29 15:00:19,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-09-29 15:00:19,615 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10439 states and 57226 transitions. [2022-09-29 15:00:19,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10439 states and 57226 transitions. [2022-09-29 15:00:19,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10439 to 7845. [2022-09-29 15:00:20,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7845 states, 7845 states have (on average 5.7889101338432125) internal successors, (45414), 7844 states have internal predecessors, (45414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 15:00:20,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7845 states to 7845 states and 45414 transitions. [2022-09-29 15:00:20,052 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7845 states and 45414 transitions. [2022-09-29 15:00:20,052 INFO L428 stractBuchiCegarLoop]: Abstraction has 7845 states and 45414 transitions. [2022-09-29 15:00:20,052 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-09-29 15:00:20,052 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7845 states and 45414 transitions. [2022-09-29 15:00:20,212 INFO L131 ngComponentsAnalysis]: Automaton has 1241 accepting balls. 4002 [2022-09-29 15:00:20,213 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 15:00:20,213 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 15:00:20,213 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-09-29 15:00:20,213 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-09-29 15:00:20,214 INFO L733 eck$LassoCheckResult]: Stem: 29627#[ULTIMATE.startENTRY]don't care [98] ULTIMATE.startENTRY-->computeMinENTRY: Formula: (= v_computeMinThread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{computeMinThread1of1ForFork0_x=v_computeMinThread1of1ForFork0_x_2, computeMinThread1of1ForFork0_thidvar0=v_computeMinThread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[computeMinThread1of1ForFork0_x, computeMinThread1of1ForFork0_thidvar0] 26041#[computeMinENTRY, L69]don't care [101] L69-->computeMinENTRY: Formula: (and (= v_computeMinThread1of1ForFork1_thidvar0_2 2) (= v_computeMinThread1of1ForFork1_thidvar1_2 2)) InVars {} OutVars{computeMinThread1of1ForFork1_x=v_computeMinThread1of1ForFork1_x_2, computeMinThread1of1ForFork1_thidvar0=v_computeMinThread1of1ForFork1_thidvar0_2, computeMinThread1of1ForFork1_thidvar1=v_computeMinThread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[computeMinThread1of1ForFork1_x, computeMinThread1of1ForFork1_thidvar0, computeMinThread1of1ForFork1_thidvar1] 26045#[L70, computeMinENTRY, computeMinENTRY]don't care [90] computeMinENTRY-->L33: Formula: (= v_array_min_6 0) InVars {} OutVars{array_min=v_array_min_6} AuxVars[] AssignedVars[array_min] 26829#[L70, computeMinENTRY, L33]don't care [91] L33-->L36-1: Formula: (= v_i1_7 0) InVars {} OutVars{i1=v_i1_7} AuxVars[] AssignedVars[i1] 26741#[L70, computeMinENTRY, L36-1]don't care [2022-09-29 15:00:20,214 INFO L735 eck$LassoCheckResult]: Loop: 26741#[L70, computeMinENTRY, L36-1]don't care [92] L36-1-->L36: Formula: (< v_i1_2 v_N_3) InVars {i1=v_i1_2, N=v_N_3} OutVars{i1=v_i1_2, N=v_N_3} AuxVars[] AssignedVars[] 26737#[L70, computeMinENTRY, L36]don't care [94] L36-->L36-1: Formula: (and (= (+ v_i1_9 1) v_i1_8) (= v_array_min_7 (let ((.cse0 (select v_A_5 v_i1_9))) (ite (< v_array_min_8 .cse0) v_array_min_8 .cse0)))) InVars {A=v_A_5, i1=v_i1_9, array_min=v_array_min_8} OutVars{A=v_A_5, i1=v_i1_8, array_min=v_array_min_7} AuxVars[] AssignedVars[array_min, i1] 26741#[L70, computeMinENTRY, L36-1]don't care [2022-09-29 15:00:20,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:20,215 INFO L85 PathProgramCache]: Analyzing trace with hash 3942981, now seen corresponding path program 1 times [2022-09-29 15:00:20,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:20,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636111297] [2022-09-29 15:00:20,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:20,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:20,245 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:20,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:20,250 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:20,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:20,251 INFO L85 PathProgramCache]: Analyzing trace with hash 3907, now seen corresponding path program 1 times [2022-09-29 15:00:20,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:20,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97334607] [2022-09-29 15:00:20,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:20,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:20,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:20,266 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:20,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:20,273 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:20,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:20,274 INFO L85 PathProgramCache]: Analyzing trace with hash -505759609, now seen corresponding path program 1 times [2022-09-29 15:00:20,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:20,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632375247] [2022-09-29 15:00:20,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:20,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:20,289 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:20,303 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:20,384 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 15:00:20,384 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 15:00:20,385 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 15:00:20,385 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 15:00:20,385 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 15:00:20,385 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:20,385 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 15:00:20,385 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 15:00:20,385 INFO L133 ssoRankerPreferences]: Filename of dumped script: min2-max2-sample.bpl_BEv2_Iteration2_Lasso [2022-09-29 15:00:20,385 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 15:00:20,385 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 15:00:20,386 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 15:00:20,388 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 15:00:20,391 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 15:00:20,393 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 15:00:20,396 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 15:00:20,427 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 15:00:20,515 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 15:00:20,516 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 15:00:20,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:20,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:20,523 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-09-29 15:00:20,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-09-29 15:00:20,525 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-09-29 15:00:20,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:20,531 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 15:00:20,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:20,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:00:20,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:20,532 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 15:00:20,532 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 15:00:20,543 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:00:20,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-09-29 15:00:20,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:20,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:20,561 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-09-29 15:00:20,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-09-29 15:00:20,564 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-09-29 15:00:20,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:20,569 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 15:00:20,570 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:20,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:00:20,570 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:20,570 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 15:00:20,570 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 15:00:20,571 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:00:20,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-09-29 15:00:20,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:20,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:20,588 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-09-29 15:00:20,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-09-29 15:00:20,589 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-09-29 15:00:20,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:20,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:20,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:00:20,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:20,597 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:00:20,597 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:00:20,615 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:00:20,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-09-29 15:00:20,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:20,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:20,649 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-09-29 15:00:20,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-09-29 15:00:20,651 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-09-29 15:00:20,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:20,657 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:20,658 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:00:20,658 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:20,659 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:00:20,659 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:00:20,675 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:00:20,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-09-29 15:00:20,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:20,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:20,695 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-09-29 15:00:20,701 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-09-29 15:00:20,706 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:20,706 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:20,706 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:00:20,707 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:20,709 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:00:20,709 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:00:20,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-09-29 15:00:20,723 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 15:00:20,730 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2022-09-29 15:00:20,730 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2022-09-29 15:00:20,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:20,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:20,732 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-09-29 15:00:20,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-09-29 15:00:20,790 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 15:00:20,807 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-09-29 15:00:20,807 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 15:00:20,807 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(N, i1) = 1*N - 1*i1 Supporting invariants [] [2022-09-29 15:00:20,823 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-09-29 15:00:20,824 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 15:00:20,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:00:20,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 15:00:20,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:00:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:00:20,846 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 15:00:20,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:00:20,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 15:00:20,860 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-09-29 15:00:20,860 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7845 states and 45414 transitions. cyclomatic complexity: 39189 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 15:00:21,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-09-29 15:00:21,234 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7845 states and 45414 transitions. cyclomatic complexity: 39189. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Result 15612 states and 90700 transitions. Complement of second has 8 states. [2022-09-29 15:00:21,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-09-29 15:00:21,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 15:00:21,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 131 transitions. [2022-09-29 15:00:21,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 131 transitions. Stem has 4 letters. Loop has 2 letters. [2022-09-29 15:00:21,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:00:21,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 131 transitions. Stem has 6 letters. Loop has 2 letters. [2022-09-29 15:00:21,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:00:21,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 131 transitions. Stem has 4 letters. Loop has 4 letters. [2022-09-29 15:00:21,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:00:21,235 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15612 states and 90700 transitions. [2022-09-29 15:00:21,546 INFO L131 ngComponentsAnalysis]: Automaton has 1594 accepting balls. 4356 [2022-09-29 15:00:21,831 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15612 states to 14192 states and 83268 transitions. [2022-09-29 15:00:21,831 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6454 [2022-09-29 15:00:21,866 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8668 [2022-09-29 15:00:21,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14192 states and 83268 transitions. [2022-09-29 15:00:21,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-09-29 15:00:21,866 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14192 states and 83268 transitions. [2022-09-29 15:00:21,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14192 states and 83268 transitions. [2022-09-29 15:00:22,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14192 to 7945. [2022-09-29 15:00:22,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7945 states, 7945 states have (on average 6.173694147262429) internal successors, (49050), 7944 states have internal predecessors, (49050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 15:00:22,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7945 states to 7945 states and 49050 transitions. [2022-09-29 15:00:22,227 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7945 states and 49050 transitions. [2022-09-29 15:00:22,227 INFO L428 stractBuchiCegarLoop]: Abstraction has 7945 states and 49050 transitions. [2022-09-29 15:00:22,227 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-09-29 15:00:22,227 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7945 states and 49050 transitions. [2022-09-29 15:00:22,287 INFO L131 ngComponentsAnalysis]: Automaton has 1068 accepting balls. 2916 [2022-09-29 15:00:22,287 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 15:00:22,287 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 15:00:22,287 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-09-29 15:00:22,287 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-09-29 15:00:22,288 INFO L733 eck$LassoCheckResult]: Stem: 62087#[ULTIMATE.startENTRY]don't care [98] ULTIMATE.startENTRY-->computeMinENTRY: Formula: (= v_computeMinThread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{computeMinThread1of1ForFork0_x=v_computeMinThread1of1ForFork0_x_2, computeMinThread1of1ForFork0_thidvar0=v_computeMinThread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[computeMinThread1of1ForFork0_x, computeMinThread1of1ForFork0_thidvar0] 58085#[computeMinENTRY, L69]don't care [101] L69-->computeMinENTRY: Formula: (and (= v_computeMinThread1of1ForFork1_thidvar0_2 2) (= v_computeMinThread1of1ForFork1_thidvar1_2 2)) InVars {} OutVars{computeMinThread1of1ForFork1_x=v_computeMinThread1of1ForFork1_x_2, computeMinThread1of1ForFork1_thidvar0=v_computeMinThread1of1ForFork1_thidvar0_2, computeMinThread1of1ForFork1_thidvar1=v_computeMinThread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[computeMinThread1of1ForFork1_x, computeMinThread1of1ForFork1_thidvar0, computeMinThread1of1ForFork1_thidvar1] 58089#[L70, computeMinENTRY, computeMinENTRY]don't care [104] L70-->computeMaxENTRY: Formula: (and (= v_computeMaxThread1of1ForFork2_thidvar2_2 3) (= v_computeMaxThread1of1ForFork2_thidvar0_2 3) (= v_computeMaxThread1of1ForFork2_thidvar1_2 3)) InVars {} OutVars{computeMaxThread1of1ForFork2_y=v_computeMaxThread1of1ForFork2_y_2, computeMaxThread1of1ForFork2_thidvar2=v_computeMaxThread1of1ForFork2_thidvar2_2, computeMaxThread1of1ForFork2_thidvar1=v_computeMaxThread1of1ForFork2_thidvar1_2, computeMaxThread1of1ForFork2_thidvar0=v_computeMaxThread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[computeMaxThread1of1ForFork2_y, computeMaxThread1of1ForFork2_thidvar2, computeMaxThread1of1ForFork2_thidvar1, computeMaxThread1of1ForFork2_thidvar0] 58995#[computeMinENTRY, computeMaxENTRY, L71, computeMinENTRY]don't care [107] L71-->computeMaxENTRY: Formula: (and (= v_computeMaxThread1of1ForFork3_thidvar0_2 4) (= v_computeMaxThread1of1ForFork3_thidvar3_2 4) (= v_computeMaxThread1of1ForFork3_thidvar2_2 4) (= v_computeMaxThread1of1ForFork3_thidvar1_2 4)) InVars {} OutVars{computeMaxThread1of1ForFork3_thidvar3=v_computeMaxThread1of1ForFork3_thidvar3_2, computeMaxThread1of1ForFork3_y=v_computeMaxThread1of1ForFork3_y_2, computeMaxThread1of1ForFork3_thidvar1=v_computeMaxThread1of1ForFork3_thidvar1_2, computeMaxThread1of1ForFork3_thidvar2=v_computeMaxThread1of1ForFork3_thidvar2_2, computeMaxThread1of1ForFork3_thidvar0=v_computeMaxThread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[computeMaxThread1of1ForFork3_thidvar3, computeMaxThread1of1ForFork3_y, computeMaxThread1of1ForFork3_thidvar1, computeMaxThread1of1ForFork3_thidvar2, computeMaxThread1of1ForFork3_thidvar0] 59007#[computeMinENTRY, computeMaxENTRY, computeMaxENTRY, computeMinENTRY, L72]don't care [110] L72-->L60: Formula: (and (= 5 v_sampleThread1of1ForFork4_thidvar0_2) (= 5 v_sampleThread1of1ForFork4_thidvar1_2) (= 5 v_sampleThread1of1ForFork4_thidvar2_2) (= 5 v_sampleThread1of1ForFork4_thidvar4_2) (= 5 v_sampleThread1of1ForFork4_thidvar3_2)) InVars {} OutVars{sampleThread1of1ForFork4_thidvar4=v_sampleThread1of1ForFork4_thidvar4_2, sampleThread1of1ForFork4_thidvar3=v_sampleThread1of1ForFork4_thidvar3_2, sampleThread1of1ForFork4_thidvar2=v_sampleThread1of1ForFork4_thidvar2_2, sampleThread1of1ForFork4_thidvar1=v_sampleThread1of1ForFork4_thidvar1_2, sampleThread1of1ForFork4_thidvar0=v_sampleThread1of1ForFork4_thidvar0_2} AuxVars[] AssignedVars[sampleThread1of1ForFork4_thidvar4, sampleThread1of1ForFork4_thidvar3, sampleThread1of1ForFork4_thidvar2, sampleThread1of1ForFork4_thidvar1, sampleThread1of1ForFork4_thidvar0] 59531#[L73, L60, computeMaxENTRY, computeMinENTRY, computeMinENTRY, computeMaxENTRY]don't care [2022-09-29 15:00:22,288 INFO L735 eck$LassoCheckResult]: Loop: 59531#[L73, L60, computeMaxENTRY, computeMinENTRY, computeMinENTRY, computeMaxENTRY]don't care [81] L60-->L62: Formula: (= v_min_samples_1 (store v_min_samples_2 (+ (- 1) v_i1_1) v_array_min_3)) InVars {min_samples=v_min_samples_2, i1=v_i1_1, array_min=v_array_min_3} OutVars{min_samples=v_min_samples_1, i1=v_i1_1, array_min=v_array_min_3} AuxVars[] AssignedVars[min_samples] 59529#[L73, computeMaxENTRY, computeMinENTRY, computeMinENTRY, L62, computeMaxENTRY]don't care [83] L62-->L60: Formula: (= (store v_max_samples_2 (+ (- 1) v_i2_7) v_array_max_6) v_max_samples_1) InVars {i2=v_i2_7, array_max=v_array_max_6, max_samples=v_max_samples_2} OutVars{i2=v_i2_7, array_max=v_array_max_6, max_samples=v_max_samples_1} AuxVars[] AssignedVars[max_samples] 59531#[L73, L60, computeMaxENTRY, computeMinENTRY, computeMinENTRY, computeMaxENTRY]don't care [2022-09-29 15:00:22,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:22,288 INFO L85 PathProgramCache]: Analyzing trace with hash 122246471, now seen corresponding path program 1 times [2022-09-29 15:00:22,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:22,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904466270] [2022-09-29 15:00:22,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:22,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:22,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:22,292 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:22,296 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:22,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:22,296 INFO L85 PathProgramCache]: Analyzing trace with hash 3555, now seen corresponding path program 1 times [2022-09-29 15:00:22,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:22,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125985234] [2022-09-29 15:00:22,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:22,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:22,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:22,300 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:22,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:22,303 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:22,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:22,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1514744233, now seen corresponding path program 1 times [2022-09-29 15:00:22,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:22,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166228570] [2022-09-29 15:00:22,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:22,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:22,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:22,308 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:22,313 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:22,395 INFO L202 PluginConnector]: Adding new model min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.09 03:00:22 BoogieIcfgContainer [2022-09-29 15:00:22,395 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-09-29 15:00:22,396 INFO L158 Benchmark]: Toolchain (without parser) took 5525.61ms. Allocated memory was 174.1MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 127.6MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 360.5MB. Max. memory is 8.0GB. [2022-09-29 15:00:22,396 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.15ms. Allocated memory is still 174.1MB. Free memory is still 128.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 15:00:22,397 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.54ms. Allocated memory is still 174.1MB. Free memory was 127.5MB in the beginning and 126.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-29 15:00:22,397 INFO L158 Benchmark]: Boogie Preprocessor took 14.82ms. Allocated memory is still 174.1MB. Free memory was 126.0MB in the beginning and 125.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-29 15:00:22,397 INFO L158 Benchmark]: RCFGBuilder took 201.30ms. Allocated memory is still 174.1MB. Free memory was 124.9MB in the beginning and 145.4MB in the end (delta: -20.4MB). Peak memory consumption was 16.2MB. Max. memory is 8.0GB. [2022-09-29 15:00:22,398 INFO L158 Benchmark]: BuchiAutomizer took 5284.76ms. Allocated memory was 174.1MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 145.2MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 376.8MB. Max. memory is 8.0GB. [2022-09-29 15:00:22,399 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 0.15ms. Allocated memory is still 174.1MB. Free memory is still 128.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.54ms. Allocated memory is still 174.1MB. Free memory was 127.5MB in the beginning and 126.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.82ms. Allocated memory is still 174.1MB. Free memory was 126.0MB in the beginning and 125.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 201.30ms. Allocated memory is still 174.1MB. Free memory was 124.9MB in the beginning and 145.4MB in the end (delta: -20.4MB). Peak memory consumption was 16.2MB. Max. memory is 8.0GB. * BuchiAutomizer took 5284.76ms. Allocated memory was 174.1MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 145.2MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 376.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function N + -1 * i1 and consists of 5 locations. One deterministic module has affine ranking function N + -1 * i1 and consists of 5 locations. The remainder module has 7945 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 2. Automata minimization 0.8s AutomataMinimizationTime, 2 MinimizatonAttempts, 8841 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 1.1s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 143 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 141 mSDsluCounter, 108 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 101 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 211 IncrementalHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 62 mSDtfsCounter, 211 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital44 mio100 ax100 hnf100 lsp105 ukn67 mio100 lsp61 div100 bol100 ite100 ukn100 eq163 hnf100 smp100 dnf135 smp69 tf100 neg96 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 62ms VariablesStem: 1 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.1s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 60]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {array_max=7, array_min=6, i1=0, i2=20641, x=0, y=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 60]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L69] FORK 0 fork 1 computeMin(); [L70] FORK 0 fork 2, 2 computeMin(); [L71] FORK 0 fork 3, 3, 3 computeMax(); [L72] FORK 0 fork 4, 4, 4, 4 computeMax(); [L73] FORK 0 fork 5, 5, 5, 5, 5 sample(); Loop: [L61] min_samples[i1 - 1] := array_min; [L62] max_samples[i2 - 1] := array_max; End of lasso representation. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 50 PlacesBefore, 45 PlacesAfterwards, 39 TransitionsBefore, 34 TransitionsAfterwards, 810 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 1249 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 523, positive: 479, positive conditional: 0, positive unconditional: 479, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 370, positive: 348, positive conditional: 0, positive unconditional: 348, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 370, positive: 344, positive conditional: 0, positive unconditional: 344, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 26, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 51, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 523, positive: 131, positive conditional: 0, positive unconditional: 131, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 370, unknown conditional: 0, unknown unconditional: 370] , Statistics on independence cache: Total cache size (in pairs): 199, Positive cache size: 181, Positive conditional cache size: 0, Positive unconditional cache size: 181, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 RESULT: Ultimate proved your program to be incorrect! [2022-09-29 15:00:22,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...