/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/max-tailsum2.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.fs.omega-petrinet-638c691-m [2022-09-29 15:00:10,917 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 15:00:10,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 15:00:10,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 15:00:10,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 15:00:10,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 15:00:10,969 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 15:00:10,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 15:00:10,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 15:00:10,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 15:00:10,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 15:00:10,979 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 15:00:10,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 15:00:10,981 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 15:00:10,983 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 15:00:10,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 15:00:10,987 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 15:00:10,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 15:00:10,989 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 15:00:10,995 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 15:00:10,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 15:00:10,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 15:00:10,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 15:00:11,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 15:00:11,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 15:00:11,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-29 15:00:11,008 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-29 15:00:11,010 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-29 15:00:11,010 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-29 15:00:11,012 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-29 15:00:11,012 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-29 15:00:11,012 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-29 15:00:11,013 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-29 15:00:11,013 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 15:00:11,014 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 15:00:11,014 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 15:00:11,015 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 15:00:11,048 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 15:00:11,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 15:00:11,049 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 15:00:11,049 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 15:00:11,050 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 15:00:11,050 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 15:00:11,050 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 15:00:11,050 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-09-29 15:00:11,050 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-09-29 15:00:11,051 INFO L138 SettingsManager]: * Use old map elimination=false [2022-09-29 15:00:11,051 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-09-29 15:00:11,052 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-09-29 15:00:11,052 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-09-29 15:00:11,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 15:00:11,052 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 15:00:11,052 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-09-29 15:00:11,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 15:00:11,052 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 15:00:11,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 15:00:11,053 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-09-29 15:00:11,054 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-09-29 15:00:11,054 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-09-29 15:00:11,054 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 15:00:11,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 15:00:11,054 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-09-29 15:00:11,054 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 15:00:11,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-09-29 15:00:11,055 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 15:00:11,055 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 15:00:11,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 15:00:11,055 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 15:00:11,056 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-09-29 15:00:11,056 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 15:00:11,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 15:00:11,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 15:00:11,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 15:00:11,325 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 15:00:11,326 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 15:00:11,327 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/max-tailsum2.bpl [2022-09-29 15:00:11,327 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/max-tailsum2.bpl' [2022-09-29 15:00:11,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 15:00:11,361 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-29 15:00:11,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-29 15:00:11,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-29 15:00:11,368 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-29 15:00:11,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "max-tailsum2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:11" (1/1) ... [2022-09-29 15:00:11,394 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "max-tailsum2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:11" (1/1) ... [2022-09-29 15:00:11,401 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-09-29 15:00:11,403 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-29 15:00:11,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 15:00:11,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 15:00:11,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 15:00:11,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "max-tailsum2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:11" (1/1) ... [2022-09-29 15:00:11,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "max-tailsum2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:11" (1/1) ... [2022-09-29 15:00:11,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "max-tailsum2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:11" (1/1) ... [2022-09-29 15:00:11,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "max-tailsum2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:11" (1/1) ... [2022-09-29 15:00:11,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "max-tailsum2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:11" (1/1) ... [2022-09-29 15:00:11,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "max-tailsum2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:11" (1/1) ... [2022-09-29 15:00:11,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "max-tailsum2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:11" (1/1) ... [2022-09-29 15:00:11,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 15:00:11,420 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 15:00:11,420 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 15:00:11,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 15:00:11,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "max-tailsum2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:11" (1/1) ... [2022-09-29 15:00:11,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:11,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:11,457 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 15:00:11,475 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 15:00:11,501 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-29 15:00:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 15:00:11,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 15:00:11,502 INFO L124 BoogieDeclarations]: Specification and implementation of procedure sum given in one single declaration [2022-09-29 15:00:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2022-09-29 15:00:11,502 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2022-09-29 15:00:11,503 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 15:00:11,555 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 15:00:11,556 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 15:00:11,640 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 15:00:11,646 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 15:00:11,646 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-29 15:00:11,648 INFO L202 PluginConnector]: Adding new model max-tailsum2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 03:00:11 BoogieIcfgContainer [2022-09-29 15:00:11,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 15:00:11,649 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-09-29 15:00:11,649 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-09-29 15:00:11,652 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-09-29 15:00:11,653 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 15:00:11,653 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "max-tailsum2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:11" (1/2) ... [2022-09-29 15:00:11,655 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2328dd3e and model type max-tailsum2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.09 03:00:11, skipping insertion in model container [2022-09-29 15:00:11,655 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 15:00:11,655 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "max-tailsum2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 03:00:11" (2/2) ... [2022-09-29 15:00:11,657 INFO L322 chiAutomizerObserver]: Analyzing ICFG max-tailsum2.bpl [2022-09-29 15:00:11,713 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-29 15:00:11,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 30 transitions, 76 flow [2022-09-29 15:00:11,761 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 15:00:11,761 INFO L123 PetriNetUnfolderBase]: 2/26 cut-off events. [2022-09-29 15:00:11,761 INFO L124 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2022-09-29 15:00:11,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 26 events. 2/26 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2022-09-29 15:00:11,764 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 30 transitions, 76 flow [2022-09-29 15:00:11,768 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 26 transitions, 64 flow [2022-09-29 15:00:11,771 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-09-29 15:00:11,784 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 26 transitions, 64 flow [2022-09-29 15:00:11,787 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 26 transitions, 64 flow [2022-09-29 15:00:11,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 26 transitions, 64 flow [2022-09-29 15:00:11,795 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 15:00:11,795 INFO L123 PetriNetUnfolderBase]: 2/26 cut-off events. [2022-09-29 15:00:11,795 INFO L124 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2022-09-29 15:00:11,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 26 events. 2/26 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2022-09-29 15:00:11,797 INFO L116 LiptonReduction]: Number of co-enabled transitions 198 [2022-09-29 15:00:12,147 INFO L131 LiptonReduction]: Checked pairs total: 140 [2022-09-29 15:00:12,147 INFO L133 LiptonReduction]: Total number of compositions: 13 [2022-09-29 15:00:12,168 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-09-29 15:00:12,168 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-09-29 15:00:12,169 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-09-29 15:00:12,169 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-09-29 15:00:12,169 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-09-29 15:00:12,169 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-09-29 15:00:12,169 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-09-29 15:00:12,169 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-09-29 15:00:12,170 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-09-29 15:00:12,194 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 7 [2022-09-29 15:00:12,194 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 15:00:12,194 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 15:00:12,197 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-09-29 15:00:12,197 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-09-29 15:00:12,198 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-09-29 15:00:12,198 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 19 states, but on-demand construction may add more states [2022-09-29 15:00:12,199 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 7 [2022-09-29 15:00:12,200 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 15:00:12,200 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 15:00:12,200 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-09-29 15:00:12,200 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-09-29 15:00:12,206 INFO L733 eck$LassoCheckResult]: Stem: 36#[ULTIMATE.startENTRY]don't care [22] ULTIMATE.startENTRY-->L54: Formula: (and (<= 0 v_ULTIMATE.start_k1_1) (<= v_ULTIMATE.start_k1_1 v_N_1)) InVars {ULTIMATE.start_k1=v_ULTIMATE.start_k1_1, N=v_N_1} OutVars{ULTIMATE.start_k1=v_ULTIMATE.start_k1_1, N=v_N_1} AuxVars[] AssignedVars[] 39#[L54]don't care [58] L54-->sumENTRY: Formula: (and (= 0 v_sumThread1of1ForFork0_lo_4) (= v_ULTIMATE.start_k1_3 v_sumThread1of1ForFork0_hi_6) (= v_sumThread1of1ForFork0_thidvar0_2 1)) InVars {ULTIMATE.start_k1=v_ULTIMATE.start_k1_3} OutVars{sumThread1of1ForFork0_hi=v_sumThread1of1ForFork0_hi_6, sumThread1of1ForFork0_x=v_sumThread1of1ForFork0_x_8, sumThread1of1ForFork0_z=v_sumThread1of1ForFork0_z_8, ULTIMATE.start_k1=v_ULTIMATE.start_k1_3, sumThread1of1ForFork0_i=v_sumThread1of1ForFork0_i_16, sumThread1of1ForFork0_thidvar0=v_sumThread1of1ForFork0_thidvar0_2, sumThread1of1ForFork0_lo=v_sumThread1of1ForFork0_lo_4} AuxVars[] AssignedVars[sumThread1of1ForFork0_hi, sumThread1of1ForFork0_x, sumThread1of1ForFork0_z, sumThread1of1ForFork0_i, sumThread1of1ForFork0_thidvar0, sumThread1of1ForFork0_lo] 41#[L54-1, sumENTRY]don't care [74] sumENTRY-->L31-1: Formula: (and (= v_sumThread1of1ForFork0_i_27 v_sumThread1of1ForFork0_lo_7) (= 0 v_sumThread1of1ForFork0_z_17) (= 0 v_sumThread1of1ForFork0_x_15)) InVars {sumThread1of1ForFork0_lo=v_sumThread1of1ForFork0_lo_7} OutVars{sumThread1of1ForFork0_x=v_sumThread1of1ForFork0_x_15, sumThread1of1ForFork0_z=v_sumThread1of1ForFork0_z_17, sumThread1of1ForFork0_i=v_sumThread1of1ForFork0_i_27, sumThread1of1ForFork0_lo=v_sumThread1of1ForFork0_lo_7} AuxVars[] AssignedVars[sumThread1of1ForFork0_x, sumThread1of1ForFork0_z, sumThread1of1ForFork0_i] 43#[L31-1, L54-1]don't care [2022-09-29 15:00:12,207 INFO L735 eck$LassoCheckResult]: Loop: 43#[L31-1, L54-1]don't care [75] L31-1-->L31-1: Formula: (and (< v_sumThread1of1ForFork0_i_30 v_sumThread1of1ForFork0_hi_11) (= (let ((.cse0 (+ (select v_A_11 v_sumThread1of1ForFork0_i_29) v_sumThread1of1ForFork0_z_20))) (ite (< 0 .cse0) .cse0 0)) v_sumThread1of1ForFork0_z_19) (= (+ (select v_A_11 v_sumThread1of1ForFork0_i_30) v_sumThread1of1ForFork0_x_18) v_sumThread1of1ForFork0_x_17) (= (+ v_sumThread1of1ForFork0_i_30 1) v_sumThread1of1ForFork0_i_29)) InVars {A=v_A_11, sumThread1of1ForFork0_hi=v_sumThread1of1ForFork0_hi_11, sumThread1of1ForFork0_x=v_sumThread1of1ForFork0_x_18, sumThread1of1ForFork0_z=v_sumThread1of1ForFork0_z_20, sumThread1of1ForFork0_i=v_sumThread1of1ForFork0_i_30} OutVars{A=v_A_11, sumThread1of1ForFork0_hi=v_sumThread1of1ForFork0_hi_11, sumThread1of1ForFork0_x=v_sumThread1of1ForFork0_x_17, sumThread1of1ForFork0_z=v_sumThread1of1ForFork0_z_19, sumThread1of1ForFork0_i=v_sumThread1of1ForFork0_i_29} AuxVars[] AssignedVars[sumThread1of1ForFork0_x, sumThread1of1ForFork0_z, sumThread1of1ForFork0_i] 43#[L31-1, L54-1]don't care [2022-09-29 15:00:12,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:12,211 INFO L85 PathProgramCache]: Analyzing trace with hash 52805, now seen corresponding path program 1 times [2022-09-29 15:00:12,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:12,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104424785] [2022-09-29 15:00:12,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:12,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:12,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:12,273 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:12,293 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:12,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:12,296 INFO L85 PathProgramCache]: Analyzing trace with hash 106, now seen corresponding path program 1 times [2022-09-29 15:00:12,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:12,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882500654] [2022-09-29 15:00:12,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:12,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:12,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:12,318 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:12,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:12,328 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:12,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:12,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1637030, now seen corresponding path program 1 times [2022-09-29 15:00:12,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:12,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701236146] [2022-09-29 15:00:12,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:12,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:12,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:12,349 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:12,360 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:12,564 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 15:00:12,564 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 15:00:12,565 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 15:00:12,565 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 15:00:12,565 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 15:00:12,565 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:12,565 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 15:00:12,565 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 15:00:12,565 INFO L133 ssoRankerPreferences]: Filename of dumped script: max-tailsum2.bpl_BEv2_Iteration1_Lasso [2022-09-29 15:00:12,565 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 15:00:12,565 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 15:00:12,580 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 15:00:12,589 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 15:00:12,772 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 15:00:12,775 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 15:00:12,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:12,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:12,783 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 15:00:12,788 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 15:00:12,799 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:12,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:12,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:00:12,800 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:12,807 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:00:12,807 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:00:12,814 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 15:00:12,824 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:00:12,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-09-29 15:00:12,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:12,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:12,847 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 15:00:12,847 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 15:00:12,866 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 15:00:12,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:12,873 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:12,873 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-09-29 15:00:12,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:12,891 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2022-09-29 15:00:12,891 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-09-29 15:00:12,906 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:00:12,939 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 15:00:12,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:12,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:12,941 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 15:00:12,950 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 15:00:12,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:12,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:12,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:00:12,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:12,971 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 15:00:12,975 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:00:12,975 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:00:12,991 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 15:00:13,011 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2022-09-29 15:00:13,011 INFO L444 ModelExtractionUtils]: 12 out of 19 variables were initially zero. Simplification set additionally 4 variables to zero. [2022-09-29 15:00:13,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:13,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:13,047 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 15:00:13,092 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 15:00:13,107 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 15:00:13,109 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-09-29 15:00:13,109 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 15:00:13,110 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(sumThread1of1ForFork0_hi, sumThread1of1ForFork0_i) = 1*sumThread1of1ForFork0_hi - 1*sumThread1of1ForFork0_i Supporting invariants [] [2022-09-29 15:00:13,133 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 15:00:13,136 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 15:00:13,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:13,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:00:13,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 15:00:13,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:00:13,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:00:13,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 15:00:13,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:00:13,177 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 15:00:13,202 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-09-29 15:00:13,204 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 19 states, but on-demand construction may add more states Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 15:00:13,273 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 19 states, but on-demand construction may add more states. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 45 states and 101 transitions. Complement of second has 4 states. [2022-09-29 15:00:13,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-09-29 15:00:13,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 15:00:13,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2022-09-29 15:00:13,282 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 3 letters. Loop has 1 letters. [2022-09-29 15:00:13,283 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:00:13,283 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 4 letters. Loop has 1 letters. [2022-09-29 15:00:13,283 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:00:13,283 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 3 letters. Loop has 2 letters. [2022-09-29 15:00:13,283 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:00:13,284 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 101 transitions. [2022-09-29 15:00:13,287 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2022-09-29 15:00:13,291 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 23 states and 53 transitions. [2022-09-29 15:00:13,292 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2022-09-29 15:00:13,292 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-09-29 15:00:13,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 53 transitions. [2022-09-29 15:00:13,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-09-29 15:00:13,293 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 53 transitions. [2022-09-29 15:00:13,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 53 transitions. [2022-09-29 15:00:13,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2022-09-29 15:00:13,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 2.35) internal successors, (47), 19 states have internal predecessors, (47), 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 15:00:13,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 47 transitions. [2022-09-29 15:00:13,319 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 47 transitions. [2022-09-29 15:00:13,319 INFO L428 stractBuchiCegarLoop]: Abstraction has 20 states and 47 transitions. [2022-09-29 15:00:13,319 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-09-29 15:00:13,319 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 47 transitions. [2022-09-29 15:00:13,322 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2022-09-29 15:00:13,322 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 15:00:13,323 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 15:00:13,323 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-09-29 15:00:13,323 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-09-29 15:00:13,323 INFO L733 eck$LassoCheckResult]: Stem: 156#[ULTIMATE.startENTRY]don't care [22] ULTIMATE.startENTRY-->L54: Formula: (and (<= 0 v_ULTIMATE.start_k1_1) (<= v_ULTIMATE.start_k1_1 v_N_1)) InVars {ULTIMATE.start_k1=v_ULTIMATE.start_k1_1, N=v_N_1} OutVars{ULTIMATE.start_k1=v_ULTIMATE.start_k1_1, N=v_N_1} AuxVars[] AssignedVars[] 152#[L54]don't care [58] L54-->sumENTRY: Formula: (and (= 0 v_sumThread1of1ForFork0_lo_4) (= v_ULTIMATE.start_k1_3 v_sumThread1of1ForFork0_hi_6) (= v_sumThread1of1ForFork0_thidvar0_2 1)) InVars {ULTIMATE.start_k1=v_ULTIMATE.start_k1_3} OutVars{sumThread1of1ForFork0_hi=v_sumThread1of1ForFork0_hi_6, sumThread1of1ForFork0_x=v_sumThread1of1ForFork0_x_8, sumThread1of1ForFork0_z=v_sumThread1of1ForFork0_z_8, ULTIMATE.start_k1=v_ULTIMATE.start_k1_3, sumThread1of1ForFork0_i=v_sumThread1of1ForFork0_i_16, sumThread1of1ForFork0_thidvar0=v_sumThread1of1ForFork0_thidvar0_2, sumThread1of1ForFork0_lo=v_sumThread1of1ForFork0_lo_4} AuxVars[] AssignedVars[sumThread1of1ForFork0_hi, sumThread1of1ForFork0_x, sumThread1of1ForFork0_z, sumThread1of1ForFork0_i, sumThread1of1ForFork0_thidvar0, sumThread1of1ForFork0_lo] 154#[L54-1, sumENTRY]don't care [61] L54-1-->sumENTRY: Formula: (and (= (+ v_ULTIMATE.start_k1_5 1) v_sumThread1of1ForFork1_lo_4) (= 2 v_sumThread1of1ForFork1_thidvar1_2) (= 2 v_sumThread1of1ForFork1_thidvar0_2) (= v_N_3 v_sumThread1of1ForFork1_hi_6)) InVars {N=v_N_3, ULTIMATE.start_k1=v_ULTIMATE.start_k1_5} OutVars{N=v_N_3, sumThread1of1ForFork1_hi=v_sumThread1of1ForFork1_hi_6, sumThread1of1ForFork1_z=v_sumThread1of1ForFork1_z_8, sumThread1of1ForFork1_thidvar0=v_sumThread1of1ForFork1_thidvar0_2, sumThread1of1ForFork1_thidvar1=v_sumThread1of1ForFork1_thidvar1_2, sumThread1of1ForFork1_i=v_sumThread1of1ForFork1_i_16, ULTIMATE.start_k1=v_ULTIMATE.start_k1_5, sumThread1of1ForFork1_x=v_sumThread1of1ForFork1_x_8, sumThread1of1ForFork1_lo=v_sumThread1of1ForFork1_lo_4} AuxVars[] AssignedVars[sumThread1of1ForFork1_hi, sumThread1of1ForFork1_z, sumThread1of1ForFork1_thidvar0, sumThread1of1ForFork1_thidvar1, sumThread1of1ForFork1_i, sumThread1of1ForFork1_x, sumThread1of1ForFork1_lo] 174#[sumENTRY, sumENTRY, L55]don't care [72] sumENTRY-->L31-1: Formula: (and (= 0 v_sumThread1of1ForFork1_z_13) (= v_sumThread1of1ForFork1_lo_7 v_sumThread1of1ForFork1_i_25) (= 0 v_sumThread1of1ForFork1_x_15)) InVars {sumThread1of1ForFork1_lo=v_sumThread1of1ForFork1_lo_7} OutVars{sumThread1of1ForFork1_z=v_sumThread1of1ForFork1_z_13, sumThread1of1ForFork1_i=v_sumThread1of1ForFork1_i_25, sumThread1of1ForFork1_x=v_sumThread1of1ForFork1_x_15, sumThread1of1ForFork1_lo=v_sumThread1of1ForFork1_lo_7} AuxVars[] AssignedVars[sumThread1of1ForFork1_z, sumThread1of1ForFork1_i, sumThread1of1ForFork1_x] 176#[sumENTRY, L55, L31-1]don't care [2022-09-29 15:00:13,324 INFO L735 eck$LassoCheckResult]: Loop: 176#[sumENTRY, L55, L31-1]don't care [76] L31-1-->L31-1: Formula: (and (= (+ v_sumThread1of1ForFork1_i_32 1) v_sumThread1of1ForFork1_i_31) (< v_sumThread1of1ForFork1_i_32 v_sumThread1of1ForFork1_hi_11) (= (let ((.cse0 (+ (select v_A_13 v_sumThread1of1ForFork1_i_31) v_sumThread1of1ForFork1_z_16))) (ite (< 0 .cse0) .cse0 0)) v_sumThread1of1ForFork1_z_15) (= (+ (select v_A_13 v_sumThread1of1ForFork1_i_32) v_sumThread1of1ForFork1_x_22) v_sumThread1of1ForFork1_x_21)) InVars {A=v_A_13, sumThread1of1ForFork1_hi=v_sumThread1of1ForFork1_hi_11, sumThread1of1ForFork1_z=v_sumThread1of1ForFork1_z_16, sumThread1of1ForFork1_i=v_sumThread1of1ForFork1_i_32, sumThread1of1ForFork1_x=v_sumThread1of1ForFork1_x_22} OutVars{A=v_A_13, sumThread1of1ForFork1_hi=v_sumThread1of1ForFork1_hi_11, sumThread1of1ForFork1_z=v_sumThread1of1ForFork1_z_15, sumThread1of1ForFork1_i=v_sumThread1of1ForFork1_i_31, sumThread1of1ForFork1_x=v_sumThread1of1ForFork1_x_21} AuxVars[] AssignedVars[sumThread1of1ForFork1_z, sumThread1of1ForFork1_i, sumThread1of1ForFork1_x] 176#[sumENTRY, L55, L31-1]don't care [2022-09-29 15:00:13,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:13,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1636624, now seen corresponding path program 1 times [2022-09-29 15:00:13,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:13,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510487108] [2022-09-29 15:00:13,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:13,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:13,347 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:13,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:13,353 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:13,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:13,354 INFO L85 PathProgramCache]: Analyzing trace with hash 107, now seen corresponding path program 1 times [2022-09-29 15:00:13,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:13,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166427698] [2022-09-29 15:00:13,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:13,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:13,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:13,379 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:13,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:13,396 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:13,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:13,397 INFO L85 PathProgramCache]: Analyzing trace with hash 50735420, now seen corresponding path program 1 times [2022-09-29 15:00:13,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:13,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128688789] [2022-09-29 15:00:13,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:13,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:13,409 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:13,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:13,437 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:13,576 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 15:00:13,576 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 15:00:13,576 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 15:00:13,576 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 15:00:13,576 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 15:00:13,576 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:13,576 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 15:00:13,577 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 15:00:13,577 INFO L133 ssoRankerPreferences]: Filename of dumped script: max-tailsum2.bpl_BEv2_Iteration2_Lasso [2022-09-29 15:00:13,577 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 15:00:13,577 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 15:00:13,580 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 15:00:13,583 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 15:00:13,585 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 15:00:13,588 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 15:00:13,590 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 15:00:13,592 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 15:00:13,594 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 15:00:13,644 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 15:00:13,798 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 15:00:13,798 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 15:00:13,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:13,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:13,799 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 15:00:13,801 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 15:00:13,802 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 15:00:13,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:13,810 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 15:00:13,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:13,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:00:13,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:13,811 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 15:00:13,811 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 15:00:13,824 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:00:13,851 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 15:00:13,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:13,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:13,853 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 15:00:13,855 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 15:00:13,856 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 15:00:13,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:13,865 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:13,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:00:13,865 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:13,869 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:00:13,869 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:00:13,883 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:00:13,908 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 15:00:13,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:13,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:13,910 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 15:00:13,912 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 15:00:13,915 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 15:00:13,922 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:13,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:13,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:00:13,922 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:13,924 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:00:13,924 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:00:13,927 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:00:13,951 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 15:00:13,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:13,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:13,953 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 15:00:13,955 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 15:00:13,956 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 15:00:13,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:13,963 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 15:00:13,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:13,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:00:13,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:13,965 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 15:00:13,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 15:00:13,984 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:00:14,006 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 15:00:14,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:14,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:14,008 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 15:00:14,009 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 15:00:14,010 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 15:00:14,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:14,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 15:00:14,018 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:14,018 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:00:14,018 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:14,019 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 15:00:14,019 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 15:00:14,035 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:00:14,061 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 15:00:14,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:14,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:14,063 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 15:00:14,069 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 15:00:14,070 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 15:00:14,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:14,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:14,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:00:14,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:14,080 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:00:14,080 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:00:14,095 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:00:14,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-09-29 15:00:14,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:14,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:14,125 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 15:00:14,128 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 15:00:14,137 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:14,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:14,138 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-09-29 15:00:14,138 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:14,151 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2022-09-29 15:00:14,152 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-09-29 15:00:14,159 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 15:00:14,175 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:00:14,202 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 15:00:14,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:14,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:14,203 INFO L229 MonitoredProcess]: Starting monitored process 13 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 15:00:14,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-09-29 15:00:14,254 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 15:00:14,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:14,262 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:14,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:00:14,262 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:14,266 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:00:14,267 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:00:14,296 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 15:00:14,302 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 15:00:14,318 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-09-29 15:00:14,318 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 13 variables to zero. [2022-09-29 15:00:14,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:14,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:14,320 INFO L229 MonitoredProcess]: Starting monitored process 14 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 15:00:14,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-09-29 15:00:14,326 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 15:00:14,355 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-09-29 15:00:14,355 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 15:00:14,355 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(sumThread1of1ForFork1_i, sumThread1of1ForFork1_hi) = -1*sumThread1of1ForFork1_i + 1*sumThread1of1ForFork1_hi Supporting invariants [] [2022-09-29 15:00:14,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-09-29 15:00:14,384 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 15:00:14,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:00:14,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 15:00:14,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:00:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:00:14,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 15:00:14,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:00:14,421 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 15:00:14,422 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-09-29 15:00:14,423 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 47 transitions. cyclomatic complexity: 34 Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 15:00:14,457 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 47 transitions. cyclomatic complexity: 34. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 36 states and 81 transitions. Complement of second has 4 states. [2022-09-29 15:00:14,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-09-29 15:00:14,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 15:00:14,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2022-09-29 15:00:14,459 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 4 letters. Loop has 1 letters. [2022-09-29 15:00:14,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:00:14,459 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 1 letters. [2022-09-29 15:00:14,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:00:14,460 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2022-09-29 15:00:14,460 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:00:14,460 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 81 transitions. [2022-09-29 15:00:14,465 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-09-29 15:00:14,465 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 0 states and 0 transitions. [2022-09-29 15:00:14,466 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-09-29 15:00:14,466 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-09-29 15:00:14,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-09-29 15:00:14,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-29 15:00:14,466 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-29 15:00:14,466 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-29 15:00:14,467 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-29 15:00:14,472 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-09-29 15:00:14,472 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-09-29 15:00:14,472 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-09-29 15:00:14,472 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-09-29 15:00:14,479 INFO L202 PluginConnector]: Adding new model max-tailsum2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.09 03:00:14 BoogieIcfgContainer [2022-09-29 15:00:14,480 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-09-29 15:00:14,481 INFO L158 Benchmark]: Toolchain (without parser) took 3119.36ms. Allocated memory is still 191.9MB. Free memory was 150.8MB in the beginning and 159.0MB in the end (delta: -8.2MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 15:00:14,481 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.16ms. Allocated memory is still 191.9MB. Free memory is still 151.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 15:00:14,481 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.52ms. Allocated memory is still 191.9MB. Free memory was 150.6MB in the beginning and 149.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 15:00:14,482 INFO L158 Benchmark]: Boogie Preprocessor took 14.60ms. Allocated memory is still 191.9MB. Free memory was 149.0MB in the beginning and 148.2MB in the end (delta: 859.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 15:00:14,485 INFO L158 Benchmark]: RCFGBuilder took 228.25ms. Allocated memory is still 191.9MB. Free memory was 148.2MB in the beginning and 139.1MB in the end (delta: 9.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-09-29 15:00:14,485 INFO L158 Benchmark]: BuchiAutomizer took 2830.68ms. Allocated memory is still 191.9MB. Free memory was 139.1MB in the beginning and 159.0MB in the end (delta: -19.9MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 15:00:14,490 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 0.16ms. Allocated memory is still 191.9MB. Free memory is still 151.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.52ms. Allocated memory is still 191.9MB. Free memory was 150.6MB in the beginning and 149.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 14.60ms. Allocated memory is still 191.9MB. Free memory was 149.0MB in the beginning and 148.2MB in the end (delta: 859.9kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 228.25ms. Allocated memory is still 191.9MB. Free memory was 148.2MB in the beginning and 139.1MB in the end (delta: 9.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 2830.68ms. Allocated memory is still 191.9MB. Free memory was 139.1MB in the beginning and 159.0MB in the end (delta: -19.9MB). There was no memory consumed. 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). One deterministic module has affine ranking function -1 * i + hi and consists of 3 locations. One deterministic module has affine ranking function -1 * i + hi and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s 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, 28 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 3 mSDtfsCounter, 39 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital76 mio100 ax100 hnf100 lsp103 ukn75 mio100 lsp57 div100 bol100 ite100 ukn100 eq170 hnf94 smp100 dnf163 smp69 tf100 neg98 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 61ms VariablesStem: 2 VariablesLoop: 6 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.4s, 31 PlacesBefore, 18 PlacesAfterwards, 26 TransitionsBefore, 13 TransitionsAfterwards, 198 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 13 TotalNumberOfCompositions, 140 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 140, positive: 140, positive conditional: 0, positive unconditional: 140, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 117, positive: 117, positive conditional: 0, positive unconditional: 117, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 117, positive: 117, positive conditional: 0, positive unconditional: 117, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 140, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 117, unknown conditional: 0, unknown unconditional: 117] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 RESULT: Ultimate proved your program to be correct! [2022-09-29 15:00:14,521 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-09-29 15:00:14,732 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...