/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-buchi-pn-semanticLbe.epf -i ../../../trunk/examples/concurrent/bpl/POPL2023/sum-print.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.fs.omega-petrinet-638c691-m [2022-09-29 15:06:37,018 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 15:06:37,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 15:06:37,056 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 15:06:37,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 15:06:37,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 15:06:37,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 15:06:37,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 15:06:37,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 15:06:37,077 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 15:06:37,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 15:06:37,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 15:06:37,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 15:06:37,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 15:06:37,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 15:06:37,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 15:06:37,081 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 15:06:37,082 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 15:06:37,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 15:06:37,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 15:06:37,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 15:06:37,092 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 15:06:37,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 15:06:37,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 15:06:37,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 15:06:37,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 15:06:37,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 15:06:37,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 15:06:37,111 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-buchi-pn-semanticLbe.epf [2022-09-29 15:06:37,145 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 15:06:37,146 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 15:06:37,154 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 15:06:37,154 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 15:06:37,155 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 15:06:37,155 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 15:06:37,155 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 15:06:37,155 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-09-29 15:06:37,156 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-09-29 15:06:37,156 INFO L138 SettingsManager]: * Use old map elimination=false [2022-09-29 15:06:37,156 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-09-29 15:06:37,157 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-09-29 15:06:37,157 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-09-29 15:06:37,157 INFO L138 SettingsManager]: * Automaton type for concurrent programs=BUCHI_PETRI_NET [2022-09-29 15:06:37,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 15:06:37,157 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 15:06:37,157 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-09-29 15:06:37,157 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 15:06:37,157 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 15:06:37,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 15:06:37,158 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-09-29 15:06:37,158 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-09-29 15:06:37,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-09-29 15:06:37,158 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 15:06:37,158 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 15:06:37,159 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-09-29 15:06:37,159 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 15:06:37,159 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-09-29 15:06:37,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 15:06:37,159 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 15:06:37,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 15:06:37,160 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 15:06:37,161 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-09-29 15:06:37,162 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 15:06:37,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 15:06:37,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 15:06:37,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 15:06:37,432 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 15:06:37,436 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 15:06:37,438 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sum-print.bpl [2022-09-29 15:06:37,438 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sum-print.bpl' [2022-09-29 15:06:37,458 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 15:06:37,459 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-29 15:06:37,460 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-29 15:06:37,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-29 15:06:37,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-29 15:06:37,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:37" (1/1) ... [2022-09-29 15:06:37,479 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:37" (1/1) ... [2022-09-29 15:06:37,493 INFO L137 Inliner]: procedures = 5, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2022-09-29 15:06:37,494 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-29 15:06:37,496 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 15:06:37,496 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 15:06:37,496 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 15:06:37,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:37" (1/1) ... [2022-09-29 15:06:37,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:37" (1/1) ... [2022-09-29 15:06:37,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:37" (1/1) ... [2022-09-29 15:06:37,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:37" (1/1) ... [2022-09-29 15:06:37,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:37" (1/1) ... [2022-09-29 15:06:37,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:37" (1/1) ... [2022-09-29 15:06:37,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:37" (1/1) ... [2022-09-29 15:06:37,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 15:06:37,512 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 15:06:37,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 15:06:37,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 15:06:37,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:37" (1/1) ... [2022-09-29 15:06:37,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:37,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:37,540 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 15:06:37,555 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 15:06:37,581 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-29 15:06:37,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 15:06:37,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 15:06:37,582 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T1 given in one single declaration [2022-09-29 15:06:37,582 INFO L130 BoogieDeclarations]: Found specification of procedure T1 [2022-09-29 15:06:37,582 INFO L138 BoogieDeclarations]: Found implementation of procedure T1 [2022-09-29 15:06:37,582 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T2 given in one single declaration [2022-09-29 15:06:37,582 INFO L130 BoogieDeclarations]: Found specification of procedure T2 [2022-09-29 15:06:37,582 INFO L138 BoogieDeclarations]: Found implementation of procedure T2 [2022-09-29 15:06:37,582 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T3 given in one single declaration [2022-09-29 15:06:37,582 INFO L130 BoogieDeclarations]: Found specification of procedure T3 [2022-09-29 15:06:37,582 INFO L138 BoogieDeclarations]: Found implementation of procedure T3 [2022-09-29 15:06:37,583 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 15:06:37,624 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 15:06:37,626 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 15:06:37,725 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 15:06:37,744 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 15:06:37,744 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-09-29 15:06:37,746 INFO L202 PluginConnector]: Adding new model sum-print.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 03:06:37 BoogieIcfgContainer [2022-09-29 15:06:37,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 15:06:37,747 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-09-29 15:06:37,747 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-09-29 15:06:37,754 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-09-29 15:06:37,755 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 15:06:37,755 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:37" (1/2) ... [2022-09-29 15:06:37,757 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d978de0 and model type sum-print.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.09 03:06:37, skipping insertion in model container [2022-09-29 15:06:37,758 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 15:06:37,758 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum-print.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 03:06:37" (2/2) ... [2022-09-29 15:06:37,761 INFO L322 chiAutomizerObserver]: Analyzing ICFG sum-print.bpl [2022-09-29 15:06:37,861 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-09-29 15:06:37,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 34 transitions, 92 flow [2022-09-29 15:06:37,930 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 15:06:37,931 INFO L123 PetriNetUnfolderBase]: 3/28 cut-off events. [2022-09-29 15:06:37,931 INFO L124 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2022-09-29 15:06:37,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 28 events. 3/28 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 49 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2022-09-29 15:06:37,936 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 34 transitions, 92 flow [2022-09-29 15:06:37,942 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 28 transitions, 74 flow [2022-09-29 15:06:37,945 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-09-29 15:06:37,966 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 28 transitions, 74 flow [2022-09-29 15:06:37,968 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 28 transitions, 74 flow [2022-09-29 15:06:37,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 28 transitions, 74 flow [2022-09-29 15:06:37,978 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 15:06:37,978 INFO L123 PetriNetUnfolderBase]: 3/28 cut-off events. [2022-09-29 15:06:37,978 INFO L124 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2022-09-29 15:06:37,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 28 events. 3/28 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 46 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2022-09-29 15:06:37,979 INFO L116 LiptonReduction]: Number of co-enabled transitions 250 [2022-09-29 15:06:38,349 INFO L131 LiptonReduction]: Checked pairs total: 204 [2022-09-29 15:06:38,350 INFO L133 LiptonReduction]: Total number of compositions: 11 [2022-09-29 15:06:38,362 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-09-29 15:06:38,362 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-09-29 15:06:38,362 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-09-29 15:06:38,362 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-09-29 15:06:38,362 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-09-29 15:06:38,362 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-09-29 15:06:38,362 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-09-29 15:06:38,363 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2022-09-29 15:06:38,363 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 24 places, 17 transitions, 52 flow [2022-09-29 15:06:38,367 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 24 places, 17 transitions, 52 flow [2022-09-29 15:06:38,369 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:38,369 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 15:06:38,369 INFO L123 PetriNetUnfolderBase]: 0/2 cut-off events. [2022-09-29 15:06:38,369 INFO L124 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2022-09-29 15:06:38,369 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 15:06:38,372 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-09-29 15:06:38,372 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 24 places, 17 transitions, 52 flow [2022-09-29 15:06:38,373 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 24 places, 17 transitions, 52 flow [2022-09-29 15:06:38,374 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:38,374 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 15:06:38,374 INFO L123 PetriNetUnfolderBase]: 0/2 cut-off events. [2022-09-29 15:06:38,374 INFO L124 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2022-09-29 15:06:38,374 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 15:06:38,379 INFO L733 eck$LassoCheckResult]: Stem: 42#[ULTIMATE.startENTRY]true [120] ULTIMATE.startENTRY-->L65: Formula: (and (= v_x_20 0) (= v_y_14 0)) InVars {} OutVars{y=v_y_14, x=v_x_20} AuxVars[] AssignedVars[y, x] 44#[L65]true [104] L65-->L24: Formula: (= v_T1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{T1Thread1of1ForFork0_thidvar0=v_T1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[T1Thread1of1ForFork0_thidvar0] 46#[L24, L65-1]true [2022-09-29 15:06:38,380 INFO L735 eck$LassoCheckResult]: Loop: 46#[L24, L65-1]true [116] L24-->L24: Formula: (and (= v_y_8 (+ (- 1) v_y_9)) (= v_x_14 (+ v_x_15 1))) InVars {y=v_y_9, x=v_x_15} OutVars{y=v_y_8, x=v_x_14} AuxVars[] AssignedVars[y, x] 46#[L24, L65-1]true [2022-09-29 15:06:38,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:38,384 INFO L85 PathProgramCache]: Analyzing trace with hash 4785, now seen corresponding path program 1 times [2022-09-29 15:06:38,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:06:38,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973974206] [2022-09-29 15:06:38,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:06:38,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:06:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:38,455 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:06:38,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:38,472 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:06:38,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:38,475 INFO L85 PathProgramCache]: Analyzing trace with hash 147, now seen corresponding path program 1 times [2022-09-29 15:06:38,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:06:38,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480896219] [2022-09-29 15:06:38,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:06:38,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:06:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:38,484 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:06:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:38,489 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:06:38,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:38,491 INFO L85 PathProgramCache]: Analyzing trace with hash 148451, now seen corresponding path program 1 times [2022-09-29 15:06:38,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:06:38,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68043824] [2022-09-29 15:06:38,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:06:38,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:06:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:38,498 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:06:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:38,504 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:06:38,539 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 15:06:38,539 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 15:06:38,539 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 15:06:38,540 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 15:06:38,540 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-09-29 15:06:38,540 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:38,540 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 15:06:38,540 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 15:06:38,540 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum-print.bpl_BEv2_Iteration1_Loop [2022-09-29 15:06:38,540 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 15:06:38,541 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 15:06:38,554 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 15:06:38,562 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 15:06:38,617 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 15:06:38,618 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-09-29 15:06:38,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:38,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:38,621 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 15:06:38,636 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 15:06:38,638 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-09-29 15:06:38,638 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 15:06:38,663 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 15:06:38,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:38,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:38,665 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 15:06:38,665 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 15:06:38,672 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-09-29 15:06:38,672 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 15:06:38,712 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-09-29 15:06:38,712 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {y=0} Honda state: {y=0} Generalized eigenvectors: [{y=-5}, {y=-2}, {y=6}] Lambdas: [1, 4, 1] Nus: [0, 1] [2022-09-29 15:06:38,729 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 15:06:38,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:38,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:38,731 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 15:06:38,732 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 15:06:38,734 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-09-29 15:06:38,734 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 15:06:38,758 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 15:06:38,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:38,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:38,760 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 15:06:38,770 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-09-29 15:06:38,770 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 15:06:38,778 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 15:06:38,793 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-09-29 15:06:38,794 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x=0} Honda state: {x=0} Generalized eigenvectors: [{x=-1}, {x=-2}, {x=4}] Lambdas: [1, 3, 1] Nus: [0, 1] [2022-09-29 15:06:38,809 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 15:06:38,834 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 15:06:38,834 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 15:06:38,834 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 15:06:38,835 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 15:06:38,835 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-09-29 15:06:38,835 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:38,835 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 15:06:38,835 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 15:06:38,835 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum-print.bpl_BEv2_Iteration1_Lasso [2022-09-29 15:06:38,835 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 15:06:38,835 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 15:06:38,839 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 15:06:38,842 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 15:06:38,847 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 15:06:38,885 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 15:06:38,885 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-09-29 15:06:38,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:38,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:38,892 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 15:06:38,894 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 15:06:38,895 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-09-29 15:06:38,895 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 15:06:38,915 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-09-29 15:06:38,916 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {T1Thread1of1ForFork0_thidvar0=0} Honda state: {T1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-09-29 15:06:38,933 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 15:06:38,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:38,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:38,935 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 15:06:38,936 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 15:06:38,972 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-09-29 15:06:38,973 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 15:06:38,995 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 15:06:38,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:38,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:38,997 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 15:06:38,997 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 15:06:38,999 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-09-29 15:06:38,999 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 15:06:39,018 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-09-29 15:06:39,019 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x=0} Honda state: {x=0} Generalized eigenvectors: [{x=-1}, {x=-2}, {x=4}] Lambdas: [1, 3, 1] Nus: [0, 1] [2022-09-29 15:06:39,036 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 15:06:39,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:39,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:39,037 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 15:06:39,038 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 15:06:39,039 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-09-29 15:06:39,040 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 15:06:39,064 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 15:06:39,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:39,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:39,066 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 15:06:39,066 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 15:06:39,068 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-09-29 15:06:39,068 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 15:06:39,100 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-09-29 15:06:39,100 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {y=0} Honda state: {y=0} Generalized eigenvectors: [{y=-5}, {y=-2}, {y=6}] Lambdas: [1, 4, 1] Nus: [0, 1] [2022-09-29 15:06:39,126 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 15:06:39,133 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier1,QUANTIFIED] [2022-09-29 15:06:39,134 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier2,QUANTIFIED] [2022-09-29 15:06:39,135 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier3,QUANTIFIED] [2022-09-29 15:06:39,141 INFO L202 PluginConnector]: Adding new model sum-print.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.09 03:06:39 BoogieIcfgContainer [2022-09-29 15:06:39,141 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-09-29 15:06:39,143 INFO L158 Benchmark]: Toolchain (without parser) took 1683.21ms. Allocated memory was 188.7MB in the beginning and 259.0MB in the end (delta: 70.3MB). Free memory was 140.5MB in the beginning and 212.8MB in the end (delta: -72.4MB). Peak memory consumption was 17.0MB. Max. memory is 8.0GB. [2022-09-29 15:06:39,144 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.15ms. Allocated memory is still 188.7MB. Free memory is still 141.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 15:06:39,145 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.44ms. Allocated memory is still 188.7MB. Free memory was 140.3MB in the beginning and 138.4MB in the end (delta: 1.9MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-29 15:06:39,149 INFO L158 Benchmark]: Boogie Preprocessor took 15.61ms. Allocated memory is still 188.7MB. Free memory was 138.4MB in the beginning and 137.5MB in the end (delta: 915.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-29 15:06:39,150 INFO L158 Benchmark]: RCFGBuilder took 234.46ms. Allocated memory is still 188.7MB. Free memory was 137.5MB in the beginning and 157.8MB in the end (delta: -20.3MB). Peak memory consumption was 13.9MB. Max. memory is 8.0GB. [2022-09-29 15:06:39,151 INFO L158 Benchmark]: BuchiAutomizer took 1394.36ms. Allocated memory was 188.7MB in the beginning and 259.0MB in the end (delta: 70.3MB). Free memory was 157.6MB in the beginning and 212.8MB in the end (delta: -55.2MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. [2022-09-29 15:06:39,154 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 188.7MB. Free memory is still 141.6MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 34.44ms. Allocated memory is still 188.7MB. Free memory was 140.3MB in the beginning and 138.4MB in the end (delta: 1.9MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.61ms. Allocated memory is still 188.7MB. Free memory was 138.4MB in the beginning and 137.5MB in the end (delta: 915.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 234.46ms. Allocated memory is still 188.7MB. Free memory was 137.5MB in the beginning and 157.8MB in the end (delta: -20.3MB). Peak memory consumption was 13.9MB. Max. memory is 8.0GB. * BuchiAutomizer took 1394.36ms. Allocated memory was 188.7MB in the beginning and 259.0MB in the end (delta: 70.3MB). Free memory was 157.6MB in the beginning and 212.8MB in the end (delta: -55.2MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier3,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 1 iterations. TraceHistogramMax:0. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. 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 [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp44 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq212 hnf100 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 4 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.4s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 24]: Nontermination argument in form of an infinite program execution. [2022-09-29 15:06:39,167 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier4,QUANTIFIED] [2022-09-29 15:06:39,168 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier5,QUANTIFIED] [2022-09-29 15:06:39,169 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier6,QUANTIFIED] [2022-09-29 15:06:39,169 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier7,QUANTIFIED] [2022-09-29 15:06:39,170 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier8,QUANTIFIED] [2022-09-29 15:06:39,171 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier9,QUANTIFIED] Nontermination argument in form of an infinite execution State at position 0 is {x=0, y=0, freshIdentifier7=0} State at position 1 is {x=0, y=0, freshIdentifier8=1} For i>1, the state at position i is {x=0 + sum_{k=0}^i -1 + -2*3^k + 4 + 4*k*3^(k-1), y=0 + sum_{k=0}^i -5 + -2*4^k + 6 + 6*k*4^(k-1), freshIdentifier9=1 + sum_{k=0}^i 0} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 6GEVs Lambdas: [1, 3, 1, 1, 4, 1] Mus: [0, 1, 0, 0, 1] - NonterminatingLassoResult [Line: 24]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L62] 0 x := 0; [L63] 0 y := 0; [L65] FORK 0 fork 1 T1(); Loop: [L25] x := x + 1; [L26] y := y - 1; End of lasso representation. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.4s, 35 PlacesBefore, 24 PlacesAfterwards, 28 TransitionsBefore, 17 TransitionsAfterwards, 250 CoEnabledTransitionPairs, 2 FixpointIterations, 2 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 11 TotalNumberOfCompositions, 204 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 195, positive: 193, positive conditional: 0, positive unconditional: 193, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 146, positive: 144, positive conditional: 0, positive unconditional: 144, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 146, positive: 141, positive conditional: 0, positive unconditional: 141, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 30, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 195, positive: 49, positive conditional: 0, positive unconditional: 49, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 146, unknown conditional: 0, unknown unconditional: 146] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 22, Positive conditional cache size: 0, Positive unconditional cache size: 22, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 RESULT: Ultimate proved your program to be incorrect! [2022-09-29 15:06:39,192 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...