/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/max-tailsum2.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.fs.omega-petrinet-638c691-m [2022-09-29 15:02:59,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 15:02:59,583 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 15:02:59,615 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 15:02:59,616 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 15:02:59,618 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 15:02:59,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 15:02:59,621 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 15:02:59,622 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 15:02:59,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 15:02:59,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 15:02:59,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 15:02:59,627 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 15:02:59,628 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 15:02:59,629 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 15:02:59,631 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 15:02:59,632 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 15:02:59,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 15:02:59,634 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 15:02:59,638 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 15:02:59,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 15:02:59,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 15:02:59,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 15:02:59,641 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 15:02:59,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 15:02:59,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-29 15:02:59,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-29 15:02:59,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-29 15:02:59,650 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-29 15:02:59,651 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-29 15:02:59,651 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-29 15:02:59,651 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-29 15:02:59,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-29 15:02:59,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 15:02:59,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 15:02:59,653 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 15:02:59,653 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 15:02:59,675 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 15:02:59,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 15:02:59,676 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 15:02:59,676 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 15:02:59,677 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 15:02:59,677 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 15:02:59,677 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 15:02:59,677 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-09-29 15:02:59,677 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-09-29 15:02:59,677 INFO L138 SettingsManager]: * Use old map elimination=false [2022-09-29 15:02:59,678 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-09-29 15:02:59,678 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-09-29 15:02:59,678 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-09-29 15:02:59,678 INFO L138 SettingsManager]: * Automaton type for concurrent programs=BUCHI_PETRI_NET [2022-09-29 15:02:59,678 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 15:02:59,678 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 15:02:59,679 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-09-29 15:02:59,679 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 15:02:59,679 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 15:02:59,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 15:02:59,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-09-29 15:02:59,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-09-29 15:02:59,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-09-29 15:02:59,679 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 15:02:59,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 15:02:59,679 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-09-29 15:02:59,679 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 15:02:59,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-09-29 15:02:59,680 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 15:02:59,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 15:02:59,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 15:02:59,680 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 15:02:59,680 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-09-29 15:02:59,680 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 15:02:59,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 15:02:59,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 15:02:59,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 15:02:59,907 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 15:02:59,908 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 15:02:59,909 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/max-tailsum2.bpl [2022-09-29 15:02:59,909 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/max-tailsum2.bpl' [2022-09-29 15:02:59,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 15:02:59,937 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-29 15:02:59,938 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-29 15:02:59,938 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-29 15:02:59,939 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-29 15:02:59,946 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 03:02:59" (1/1) ... [2022-09-29 15:02:59,957 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 03:02:59" (1/1) ... [2022-09-29 15:02:59,962 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-09-29 15:02:59,963 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-29 15:02:59,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 15:02:59,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 15:02:59,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 15:02:59,970 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 03:02:59" (1/1) ... [2022-09-29 15:02:59,970 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 03:02:59" (1/1) ... [2022-09-29 15:02:59,971 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 03:02:59" (1/1) ... [2022-09-29 15:02:59,972 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 03:02:59" (1/1) ... [2022-09-29 15:02:59,973 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 03:02:59" (1/1) ... [2022-09-29 15:02:59,975 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 03:02:59" (1/1) ... [2022-09-29 15:02:59,976 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 03:02:59" (1/1) ... [2022-09-29 15:02:59,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 15:02:59,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 15:02:59,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 15:02:59,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 15:02:59,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "max-tailsum2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:02:59" (1/1) ... [2022-09-29 15:02:59,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:02:59,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:03:00,028 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 15:03:00,031 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 15:03:00,062 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-29 15:03:00,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 15:03:00,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 15:03:00,063 INFO L124 BoogieDeclarations]: Specification and implementation of procedure sum given in one single declaration [2022-09-29 15:03:00,063 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2022-09-29 15:03:00,063 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2022-09-29 15:03:00,064 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 15:03:00,101 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 15:03:00,102 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 15:03:00,191 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 15:03:00,213 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 15:03:00,214 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-29 15:03:00,215 INFO L202 PluginConnector]: Adding new model max-tailsum2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 03:03:00 BoogieIcfgContainer [2022-09-29 15:03:00,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 15:03:00,216 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-09-29 15:03:00,216 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-09-29 15:03:00,232 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-09-29 15:03:00,233 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 15:03:00,233 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "max-tailsum2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:02:59" (1/2) ... [2022-09-29 15:03:00,235 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f2f4b59 and model type max-tailsum2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.09 03:03:00, skipping insertion in model container [2022-09-29 15:03:00,236 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 15:03:00,236 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 03:03:00" (2/2) ... [2022-09-29 15:03:00,237 INFO L322 chiAutomizerObserver]: Analyzing ICFG max-tailsum2.bpl [2022-09-29 15:03:00,317 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-29 15:03:00,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 30 transitions, 76 flow [2022-09-29 15:03:00,358 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 15:03:00,358 INFO L123 PetriNetUnfolderBase]: 2/26 cut-off events. [2022-09-29 15:03:00,358 INFO L124 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2022-09-29 15:03:00,360 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 15:03:00,360 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 30 transitions, 76 flow [2022-09-29 15:03:00,363 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 26 transitions, 64 flow [2022-09-29 15:03:00,365 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-09-29 15:03:00,375 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 26 transitions, 64 flow [2022-09-29 15:03:00,377 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 26 transitions, 64 flow [2022-09-29 15:03:00,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 26 transitions, 64 flow [2022-09-29 15:03:00,383 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 15:03:00,384 INFO L123 PetriNetUnfolderBase]: 2/26 cut-off events. [2022-09-29 15:03:00,384 INFO L124 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2022-09-29 15:03:00,384 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 15:03:00,385 INFO L116 LiptonReduction]: Number of co-enabled transitions 198 [2022-09-29 15:03:00,598 INFO L131 LiptonReduction]: Checked pairs total: 140 [2022-09-29 15:03:00,598 INFO L133 LiptonReduction]: Total number of compositions: 13 [2022-09-29 15:03:00,607 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-09-29 15:03:00,607 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-09-29 15:03:00,608 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-09-29 15:03:00,608 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-09-29 15:03:00,608 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-09-29 15:03:00,608 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-09-29 15:03:00,608 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-09-29 15:03:00,608 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2022-09-29 15:03:00,608 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 18 places, 13 transitions, 38 flow [2022-09-29 15:03:00,612 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 18 places, 13 transitions, 38 flow [2022-09-29 15:03:00,614 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:03:00,614 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 15:03:00,614 INFO L123 PetriNetUnfolderBase]: 0/4 cut-off events. [2022-09-29 15:03:00,614 INFO L124 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2022-09-29 15:03:00,614 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 15:03:00,617 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-09-29 15:03:00,617 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 18 places, 13 transitions, 38 flow [2022-09-29 15:03:00,619 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 18 places, 13 transitions, 38 flow [2022-09-29 15:03:00,621 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:03:00,621 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 15:03:00,621 INFO L123 PetriNetUnfolderBase]: 0/4 cut-off events. [2022-09-29 15:03:00,621 INFO L124 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2022-09-29 15:03:00,621 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 15:03:00,625 INFO L733 eck$LassoCheckResult]: Stem: 37#[ULTIMATE.startENTRY]true [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]true [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#[sumENTRY, L54-1]true [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#[L54-1, L31-1]true [2022-09-29 15:03:00,626 INFO L735 eck$LassoCheckResult]: Loop: 43#[L54-1, L31-1]true [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#[L54-1, L31-1]true [2022-09-29 15:03:00,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:03:00,629 INFO L85 PathProgramCache]: Analyzing trace with hash 52805, now seen corresponding path program 1 times [2022-09-29 15:03:00,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:03:00,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486186502] [2022-09-29 15:03:00,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:03:00,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:03:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:03:00,688 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:03:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:03:00,703 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:03:00,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:03:00,705 INFO L85 PathProgramCache]: Analyzing trace with hash 106, now seen corresponding path program 1 times [2022-09-29 15:03:00,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:03:00,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18240665] [2022-09-29 15:03:00,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:03:00,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:03:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:03:00,715 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:03:00,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:03:00,722 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:03:00,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:03:00,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1637030, now seen corresponding path program 1 times [2022-09-29 15:03:00,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:03:00,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809977604] [2022-09-29 15:03:00,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:03:00,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:03:00,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:03:00,732 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:03:00,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:03:00,742 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:03:00,832 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 15:03:00,833 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 15:03:00,833 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 15:03:00,833 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 15:03:00,833 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 15:03:00,833 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:03:00,833 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 15:03:00,833 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 15:03:00,833 INFO L133 ssoRankerPreferences]: Filename of dumped script: max-tailsum2.bpl_BEv2_Iteration1_Lasso [2022-09-29 15:03:00,834 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 15:03:00,834 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 15:03:00,845 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 15:03:00,852 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 15:03:01,065 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 15:03:01,068 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 15:03:01,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:03:01,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:03:01,082 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 15:03:01,083 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 15:03:01,084 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 15:03:01,090 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:03:01,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:03:01,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:03:01,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:03:01,094 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:03:01,094 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:03:01,104 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:03:01,120 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-09-29 15:03:01,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:03:01,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:03:01,122 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 15:03:01,123 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 15:03:01,125 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 15:03:01,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:03:01,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:03:01,131 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-09-29 15:03:01,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:03:01,141 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2022-09-29 15:03:01,141 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-09-29 15:03:01,157 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:03:01,194 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 15:03:01,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:03:01,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:03:01,196 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 15:03:01,196 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 15:03:01,198 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 15:03:01,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:03:01,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:03:01,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:03:01,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:03:01,209 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:03:01,209 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:03:01,221 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 15:03:01,259 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2022-09-29 15:03:01,259 INFO L444 ModelExtractionUtils]: 12 out of 19 variables were initially zero. Simplification set additionally 4 variables to zero. [2022-09-29 15:03:01,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:03:01,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:03:01,268 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 15:03:01,294 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 15:03:01,295 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 15:03:01,316 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-09-29 15:03:01,316 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 15:03:01,316 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 15:03:01,332 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 15:03:01,335 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 15:03:01,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:03:01,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:03:01,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 15:03:01,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:03:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:03:01,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 15:03:01,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:03:01,370 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 15:03:01,390 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 15:03:01,392 INFO L162 BuchiComplementFKV]: Start buchiComplementFKV with optimization HEIMAT2. 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 15:03:01,502 INFO L171 BuchiComplementFKV]: Finished buchiComplementFKV with optimization HEIMAT2. 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 6 states and 370 transitions.4 powerset states2 rank states. The highest rank that occured is 1 [2022-09-29 15:03:01,503 INFO L54 IntersectBuchiEager]: Starting Intersection [2022-09-29 15:03:01,509 INFO L61 IntersectBuchiEager]: Exiting Intersection [2022-09-29 15:03:01,512 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 15:03:01,524 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 15:03:01,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 121 transitions. [2022-09-29 15:03:01,529 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 121 transitions. Stem has 3 letters. Loop has 1 letters. [2022-09-29 15:03:01,529 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:03:01,530 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 121 transitions. Stem has 4 letters. Loop has 1 letters. [2022-09-29 15:03:01,530 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:03:01,530 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 121 transitions. Stem has 3 letters. Loop has 2 letters. [2022-09-29 15:03:01,530 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:03:01,530 INFO L428 stractBuchiCegarLoop]: Abstraction has has 30 places, 212 transitions, 1046 flow [2022-09-29 15:03:01,530 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-09-29 15:03:01,530 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 30 places, 212 transitions, 1046 flow [2022-09-29 15:03:01,532 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 30 places, 212 transitions, 1046 flow [2022-09-29 15:03:01,533 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:03:01,534 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 30 places, 212 transitions, 1046 flow [2022-09-29 15:03:01,536 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:03:01,536 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 15:03:01,536 INFO L123 PetriNetUnfolderBase]: 3/15 cut-off events. [2022-09-29 15:03:01,536 INFO L124 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2022-09-29 15:03:01,537 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 15:03:01,537 INFO L733 eck$LassoCheckResult]: Stem: 37#[ULTIMATE.startENTRY]true [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]true [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#[sumENTRY, L54-1]true [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] 94#[sumENTRY, sumENTRY, L55]true [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] 96#[sumENTRY, L31-1, L55]true [2022-09-29 15:03:01,537 INFO L735 eck$LassoCheckResult]: Loop: 96#[sumENTRY, L31-1, L55]true [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] 96#[sumENTRY, L31-1, L55]true [2022-09-29 15:03:01,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:03:01,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1636624, now seen corresponding path program 1 times [2022-09-29 15:03:01,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:03:01,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571943005] [2022-09-29 15:03:01,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:03:01,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:03:01,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:03:01,559 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:03:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:03:01,563 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:03:01,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:03:01,564 INFO L85 PathProgramCache]: Analyzing trace with hash 107, now seen corresponding path program 1 times [2022-09-29 15:03:01,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:03:01,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249744767] [2022-09-29 15:03:01,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:03:01,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:03:01,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:03:01,570 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:03:01,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:03:01,577 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:03:01,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:03:01,577 INFO L85 PathProgramCache]: Analyzing trace with hash 50735420, now seen corresponding path program 1 times [2022-09-29 15:03:01,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:03:01,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125374194] [2022-09-29 15:03:01,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:03:01,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:03:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:03:01,585 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:03:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:03:01,592 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:03:01,710 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 15:03:01,711 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 15:03:01,711 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 15:03:01,711 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 15:03:01,711 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 15:03:01,711 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:03:01,711 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 15:03:01,711 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 15:03:01,711 INFO L133 ssoRankerPreferences]: Filename of dumped script: max-tailsum2.bpl_BEv2_Iteration2_Lasso [2022-09-29 15:03:01,711 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 15:03:01,711 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 15:03:01,713 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 15:03:01,714 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 15:03:01,716 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 15:03:01,719 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 15:03:01,720 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 15:03:01,722 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 15:03:01,724 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 15:03:01,760 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 15:03:01,888 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 15:03:01,888 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 15:03:01,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:03:01,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:03:01,889 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 15:03:01,891 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 15:03:01,892 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 15:03:01,897 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:03:01,898 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 15:03:01,898 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:03:01,898 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:03:01,898 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:03:01,899 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 15:03:01,899 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 15:03:01,915 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:03:01,933 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 15:03:01,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:03:01,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:03:01,934 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 15:03:01,945 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 15:03:01,946 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 15:03:01,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:03:01,952 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:03:01,952 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:03:01,952 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:03:01,953 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:03:01,953 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:03:01,969 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:03:01,987 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 15:03:01,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:03:01,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:03:01,989 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 15:03:01,990 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 15:03:01,991 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 15:03:01,996 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:03:01,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:03:01,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:03:01,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:03:01,998 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:03:01,998 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:03:02,014 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:03:02,031 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 15:03:02,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:03:02,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:03:02,034 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 15:03:02,035 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 15:03:02,035 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 15:03:02,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:03:02,041 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 15:03:02,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:03:02,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:03:02,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:03:02,042 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 15:03:02,042 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 15:03:02,063 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:03:02,081 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 15:03:02,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:03:02,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:03:02,082 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 15:03:02,083 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 15:03:02,085 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 15:03:02,090 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:03:02,090 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 15:03:02,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:03:02,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:03:02,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:03:02,091 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 15:03:02,091 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 15:03:02,106 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:03:02,124 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 15:03:02,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:03:02,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:03:02,125 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 15:03:02,126 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 15:03:02,128 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 15:03:02,133 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:03:02,133 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:03:02,133 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:03:02,133 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:03:02,135 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:03:02,135 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:03:02,151 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:03:02,167 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 15:03:02,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:03:02,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:03:02,168 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 15:03:02,169 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 15:03:02,171 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 15:03:02,176 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:03:02,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:03:02,177 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-09-29 15:03:02,177 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:03:02,204 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2022-09-29 15:03:02,204 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-09-29 15:03:02,222 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:03:02,238 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 15:03:02,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:03:02,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:03:02,240 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 15:03:02,241 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 15:03:02,242 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 15:03:02,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:03:02,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:03:02,248 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:03:02,248 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:03:02,251 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:03:02,251 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:03:02,267 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 15:03:02,276 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-09-29 15:03:02,276 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 13 variables to zero. [2022-09-29 15:03:02,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:03:02,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:03:02,313 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 15:03:02,314 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 15:03:02,315 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 15:03:02,336 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-09-29 15:03:02,336 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 15:03:02,336 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 15:03:02,361 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 15:03:02,362 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 15:03:02,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:03:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:03:02,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 15:03:02,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:03:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:03:02,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 15:03:02,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:03:02,403 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 15:03:02,403 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 15:03:02,404 INFO L162 BuchiComplementFKV]: Start buchiComplementFKV with optimization HEIMAT2. 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 15:03:02,480 INFO L171 BuchiComplementFKV]: Finished buchiComplementFKV with optimization HEIMAT2. 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 6 states and 367 transitions.4 powerset states2 rank states. The highest rank that occured is 1 [2022-09-29 15:03:02,480 INFO L54 IntersectBuchiEager]: Starting Intersection [2022-09-29 15:03:02,507 INFO L61 IntersectBuchiEager]: Exiting Intersection [2022-09-29 15:03:02,508 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 15:03:02,508 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 15:03:02,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 121 transitions. [2022-09-29 15:03:02,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 121 transitions. Stem has 4 letters. Loop has 1 letters. [2022-09-29 15:03:02,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:03:02,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 121 transitions. Stem has 5 letters. Loop has 1 letters. [2022-09-29 15:03:02,510 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:03:02,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 121 transitions. Stem has 4 letters. Loop has 2 letters. [2022-09-29 15:03:02,510 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:03:02,510 INFO L428 stractBuchiCegarLoop]: Abstraction has has 42 places, 3420 transitions, 23760 flow [2022-09-29 15:03:02,512 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-09-29 15:03:02,512 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 15:03:02,526 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 15:03:02,534 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:03:02,536 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 15:03:02,542 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:03:02,551 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 15:03:02,560 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:03:02,569 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 15:03:02,578 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:03:02,582 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 15:03:02,590 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:03:02,595 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 15:03:02,604 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:03:02,605 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 15:03:02,612 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:03:02,617 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 15:03:02,621 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:03:02,639 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 15:03:02,645 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:03:02,646 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 15:03:02,652 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:03:02,656 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 15:03:02,661 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:03:02,670 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 15:03:02,679 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:03:02,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-09-29 15:03:02,724 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 15:03:02,724 INFO L123 PetriNetUnfolderBase]: 193/321 cut-off events. [2022-09-29 15:03:02,724 INFO L124 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2022-09-29 15:03:02,725 INFO L47 CFPrefixIsEmptyBuchi]: Starting emptiness check. [2022-09-29 15:03:02,725 INFO L62 CFPrefixIsEmptyBuchi]: Starting cutoff event analysis. [2022-09-29 15:03:02,725 INFO L72 CFPrefixIsEmptyBuchi]: Ended cutoff event analysis. [2022-09-29 15:03:02,725 INFO L76 CFPrefixIsEmptyBuchi]: Type 1 Lasso search started. [2022-09-29 15:03:02,725 INFO L87 CFPrefixIsEmptyBuchi]: Type 1 Lasso search ended. [2022-09-29 15:03:02,725 INFO L107 CFPrefixIsEmptyBuchi]: Type 3 Lasso search started. [2022-09-29 15:03:02,742 INFO L206 CFPrefixIsEmptyBuchi]: Type 3 Lasso search ended. [2022-09-29 15:03:02,742 INFO L50 CFPrefixIsEmptyBuchi]: Finished emptiness check, language is empty [2022-09-29 15:03:02,743 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is empty [2022-09-29 15:03:02,747 INFO L202 PluginConnector]: Adding new model max-tailsum2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.09 03:03:02 BoogieIcfgContainer [2022-09-29 15:03:02,747 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-09-29 15:03:02,748 INFO L158 Benchmark]: Toolchain (without parser) took 2810.72ms. Allocated memory was 177.2MB in the beginning and 257.9MB in the end (delta: 80.7MB). Free memory was 128.7MB in the beginning and 218.7MB in the end (delta: -90.0MB). Peak memory consumption was 112.0MB. Max. memory is 8.0GB. [2022-09-29 15:03:02,748 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 177.2MB. Free memory is still 129.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 15:03:02,749 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.81ms. Allocated memory is still 177.2MB. Free memory was 128.6MB in the beginning and 127.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-29 15:03:02,751 INFO L158 Benchmark]: Boogie Preprocessor took 13.28ms. Allocated memory is still 177.2MB. Free memory was 127.1MB in the beginning and 126.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-29 15:03:02,754 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 15:03:02,755 INFO L158 Benchmark]: RCFGBuilder took 236.52ms. Allocated memory is still 177.2MB. Free memory was 126.0MB in the beginning and 148.6MB in the end (delta: -22.5MB). Peak memory consumption was 14.1MB. Max. memory is 8.0GB. [2022-09-29 15:03:02,757 INFO L158 Benchmark]: BuchiAutomizer took 2531.57ms. Allocated memory was 177.2MB in the beginning and 257.9MB in the end (delta: 80.7MB). Free memory was 148.4MB in the beginning and 218.7MB in the end (delta: -70.3MB). Peak memory consumption was 131.5MB. Max. memory is 8.0GB. [2022-09-29 15:03:02,762 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10ms. Allocated memory is still 177.2MB. Free memory is still 129.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.81ms. Allocated memory is still 177.2MB. Free memory was 128.6MB in the beginning and 127.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.28ms. Allocated memory is still 177.2MB. Free memory was 127.1MB in the beginning and 126.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 236.52ms. Allocated memory is still 177.2MB. Free memory was 126.0MB in the beginning and 148.6MB in the end (delta: -22.5MB). Peak memory consumption was 14.1MB. Max. memory is 8.0GB. * BuchiAutomizer took 2531.57ms. Allocated memory was 177.2MB in the beginning and 257.9MB in the end (delta: 80.7MB). Free memory was 148.4MB in the beginning and 218.7MB in the end (delta: -70.3MB). Peak memory consumption was 131.5MB. 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 2.4s and 3 iterations. TraceHistogramMax:0. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 1. 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 157 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 155 mSDsluCounter, 134 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 60 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 129 IncrementalHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 94 mSDtfsCounter, 129 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: 36ms 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: 0.2s - 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: 0.2s, 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 15:03:02,802 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...