./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f36e762e796a59800b85d8514c20c7f73c19b5c1 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Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 13:54:59,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 13:54:59,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 13:54:59,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 13:54:59,703 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 13:54:59,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 13:54:59,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 13:54:59,713 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 13:54:59,721 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 13:54:59,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 13:54:59,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 13:54:59,732 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 13:54:59,733 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 13:54:59,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 13:54:59,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 13:54:59,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 13:54:59,738 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 13:54:59,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 13:54:59,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 13:54:59,743 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 13:54:59,744 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 13:54:59,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 13:54:59,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 13:54:59,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 13:54:59,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 13:54:59,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 13:54:59,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 13:54:59,754 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 13:54:59,755 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 13:54:59,755 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 13:54:59,756 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 13:54:59,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 13:54:59,757 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 13:54:59,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 13:54:59,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 13:54:59,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 13:54:59,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 13:54:59,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 13:54:59,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 13:54:59,761 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 13:54:59,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 13:54:59,762 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-08-27 13:54:59,784 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 13:54:59,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 13:54:59,786 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 13:54:59,786 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 13:54:59,787 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 13:54:59,788 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 13:54:59,788 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 13:54:59,788 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 13:54:59,788 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 13:54:59,788 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 13:54:59,789 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 13:54:59,789 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 13:54:59,789 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 13:54:59,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 13:54:59,790 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 13:54:59,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 13:54:59,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 13:54:59,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 13:54:59,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 13:54:59,790 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 13:54:59,790 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 13:54:59,790 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 13:54:59,791 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 13:54:59,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 13:54:59,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 13:54:59,791 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 13:54:59,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 13:54:59,791 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 13:54:59,792 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 13:54:59,792 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 13:54:59,793 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f36e762e796a59800b85d8514c20c7f73c19b5c1 [2021-08-27 13:55:00,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 13:55:00,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 13:55:00,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 13:55:00,076 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 13:55:00,077 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 13:55:00,077 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c [2021-08-27 13:55:00,119 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c28e2d393/1592bc56de1743a2a39c78a12a782606/FLAG42b56f15d [2021-08-27 13:55:00,490 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 13:55:00,490 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c [2021-08-27 13:55:00,494 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c28e2d393/1592bc56de1743a2a39c78a12a782606/FLAG42b56f15d [2021-08-27 13:55:00,915 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c28e2d393/1592bc56de1743a2a39c78a12a782606 [2021-08-27 13:55:00,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 13:55:00,922 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 13:55:00,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 13:55:00,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 13:55:00,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 13:55:00,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 01:55:00" (1/1) ... [2021-08-27 13:55:00,929 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aa1a0b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:00, skipping insertion in model container [2021-08-27 13:55:00,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 01:55:00" (1/1) ... [2021-08-27 13:55:00,935 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 13:55:00,947 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 13:55:01,033 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 13:55:01,036 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 13:55:01,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 13:55:01,053 INFO L208 MainTranslator]: Completed translation [2021-08-27 13:55:01,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:01 WrapperNode [2021-08-27 13:55:01,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 13:55:01,054 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 13:55:01,054 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 13:55:01,054 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 13:55:01,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:01" (1/1) ... [2021-08-27 13:55:01,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:01" (1/1) ... [2021-08-27 13:55:01,080 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 13:55:01,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 13:55:01,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 13:55:01,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 13:55:01,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:01" (1/1) ... [2021-08-27 13:55:01,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:01" (1/1) ... [2021-08-27 13:55:01,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:01" (1/1) ... [2021-08-27 13:55:01,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:01" (1/1) ... [2021-08-27 13:55:01,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:01" (1/1) ... [2021-08-27 13:55:01,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:01" (1/1) ... [2021-08-27 13:55:01,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:01" (1/1) ... [2021-08-27 13:55:01,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 13:55:01,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 13:55:01,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 13:55:01,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 13:55:01,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:01" (1/1) ... [2021-08-27 13:55:01,116 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:01,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:01,143 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) [2021-08-27 13:55:01,160 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 [2021-08-27 13:55:01,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 13:55:01,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 13:55:01,315 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 13:55:01,316 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-27 13:55:01,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 01:55:01 BoogieIcfgContainer [2021-08-27 13:55:01,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 13:55:01,321 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 13:55:01,321 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 13:55:01,324 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 13:55:01,324 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 13:55:01,324 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 01:55:00" (1/3) ... [2021-08-27 13:55:01,326 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ee05ecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 01:55:01, skipping insertion in model container [2021-08-27 13:55:01,326 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 13:55:01,326 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:01" (2/3) ... [2021-08-27 13:55:01,327 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ee05ecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 01:55:01, skipping insertion in model container [2021-08-27 13:55:01,327 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 13:55:01,327 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 01:55:01" (3/3) ... [2021-08-27 13:55:01,328 INFO L389 chiAutomizerObserver]: Analyzing ICFG McCarthy91_Iteration.c [2021-08-27 13:55:01,382 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 13:55:01,382 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 13:55:01,383 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 13:55:01,383 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 13:55:01,383 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 13:55:01,383 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 13:55:01,383 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 13:55:01,383 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 13:55:01,395 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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) [2021-08-27 13:55:01,410 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 13:55:01,410 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:55:01,410 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:55:01,414 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-08-27 13:55:01,415 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 13:55:01,415 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 13:55:01,415 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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) [2021-08-27 13:55:01,416 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 13:55:01,416 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:55:01,416 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:55:01,417 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-08-27 13:55:01,417 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 13:55:01,422 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~c~0, main_~n~0;havoc main_~c~0;havoc main_~n~0;main_~c~0 := 1;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; 7#L15-2true [2021-08-27 13:55:01,423 INFO L793 eck$LassoCheckResult]: Loop: 7#L15-2true assume !!(main_~c~0 > 0); 5#L15true assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 7#L15-2true [2021-08-27 13:55:01,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:01,429 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-08-27 13:55:01,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:01,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180495990] [2021-08-27 13:55:01,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:01,439 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:01,498 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:01,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:01,521 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:01,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:01,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2021-08-27 13:55:01,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:01,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455451727] [2021-08-27 13:55:01,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:01,527 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:01,537 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:01,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:01,547 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:01,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:01,550 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2021-08-27 13:55:01,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:01,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317514504] [2021-08-27 13:55:01,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:01,552 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:01,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:01,569 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:01,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:01,582 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:01,708 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:01,709 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:01,709 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:01,709 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:01,709 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 13:55:01,709 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:01,710 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:01,710 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:01,710 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration1_Loop [2021-08-27 13:55:01,710 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:01,710 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:01,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:01,732 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:01,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:01,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:01,808 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:01,809 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 13:55:01,810 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:01,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:01,841 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) [2021-08-27 13:55:01,846 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:55:01,846 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:01,851 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 [2021-08-27 13:55:01,884 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:55:01,884 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 13:55:01,907 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 [2021-08-27 13:55:01,908 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:01,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:01,917 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) [2021-08-27 13:55:01,919 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 [2021-08-27 13:55:01,927 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:55:01,928 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:01,965 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:55:01,965 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 13:55:02,011 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 [2021-08-27 13:55:02,011 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:02,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:02,024 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) [2021-08-27 13:55:02,069 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 [2021-08-27 13:55:02,072 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:55:02,073 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:02,136 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 [2021-08-27 13:55:02,137 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:02,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:02,149 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) [2021-08-27 13:55:02,215 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 [2021-08-27 13:55:02,216 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 13:55:02,216 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:02,261 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 13:55:02,269 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 [2021-08-27 13:55:02,269 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:02,269 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:02,269 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:02,269 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:02,270 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 13:55:02,270 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:02,270 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:02,270 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:02,270 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration1_Loop [2021-08-27 13:55:02,270 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:02,270 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:02,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:02,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:02,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:02,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:02,357 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:02,360 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 13:55:02,362 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:02,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:02,365 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) [2021-08-27 13:55:02,366 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 [2021-08-27 13:55:02,367 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 [2021-08-27 13:55:02,375 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:02,375 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:02,375 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:02,375 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:02,383 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:02,383 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:02,399 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:02,417 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 [2021-08-27 13:55:02,418 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:02,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:02,419 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) [2021-08-27 13:55:02,420 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 [2021-08-27 13:55:02,421 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 [2021-08-27 13:55:02,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:02,430 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:02,430 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:02,430 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:02,434 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:02,434 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:02,451 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:02,476 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 [2021-08-27 13:55:02,476 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:02,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:02,482 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) [2021-08-27 13:55:02,483 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 [2021-08-27 13:55:02,484 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 [2021-08-27 13:55:02,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:02,492 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:55:02,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:02,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:02,493 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:02,495 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:55:02,495 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:55:02,512 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 13:55:02,520 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 13:55:02,520 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-08-27 13:55:02,521 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:02,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:02,533 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) [2021-08-27 13:55:02,537 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 [2021-08-27 13:55:02,537 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 13:55:02,540 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 13:55:02,540 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 13:55:02,541 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0) = 1*ULTIMATE.start_main_~n~0 Supporting invariants [] [2021-08-27 13:55:02,571 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 [2021-08-27 13:55:02,573 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 13:55:02,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:02,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:02,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:02,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:02,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:02,606 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 13:55:02,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:02,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:02,625 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-08-27 13:55:02,626 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-08-27 13:55:02,647 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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). Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 23 states and 30 transitions. Complement of second has 6 states. [2021-08-27 13:55:02,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 13:55:02,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-08-27 13:55:02,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2021-08-27 13:55:02,650 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2021-08-27 13:55:02,651 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:02,651 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2021-08-27 13:55:02,651 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:02,651 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2021-08-27 13:55:02,651 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:02,652 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2021-08-27 13:55:02,656 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 13:55:02,658 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2021-08-27 13:55:02,659 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-08-27 13:55:02,659 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-08-27 13:55:02,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2021-08-27 13:55:02,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 13:55:02,660 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-08-27 13:55:02,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2021-08-27 13:55:02,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-08-27 13:55:02,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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) [2021-08-27 13:55:02,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-08-27 13:55:02,674 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-08-27 13:55:02,674 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-08-27 13:55:02,674 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 13:55:02,675 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-08-27 13:55:02,675 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 13:55:02,675 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:55:02,675 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:55:02,675 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-08-27 13:55:02,676 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 13:55:02,676 INFO L791 eck$LassoCheckResult]: Stem: 63#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~c~0, main_~n~0;havoc main_~c~0;havoc main_~n~0;main_~c~0 := 1;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; 64#L15-2 assume !!(main_~c~0 > 0); 65#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 66#L15-2 [2021-08-27 13:55:02,676 INFO L793 eck$LassoCheckResult]: Loop: 66#L15-2 assume !!(main_~c~0 > 0); 69#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 66#L15-2 [2021-08-27 13:55:02,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:02,677 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2021-08-27 13:55:02,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:02,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930985927] [2021-08-27 13:55:02,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:02,678 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:02,682 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:02,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:02,688 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:02,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:02,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2021-08-27 13:55:02,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:02,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947192292] [2021-08-27 13:55:02,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:02,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:02,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:02,692 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:02,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:02,694 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:02,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:02,694 INFO L82 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2021-08-27 13:55:02,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:02,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59047043] [2021-08-27 13:55:02,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:02,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:02,698 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:02,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:02,701 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:02,719 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:02,719 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:02,719 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:02,719 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:02,719 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 13:55:02,720 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:02,720 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:02,720 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:02,720 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration2_Loop [2021-08-27 13:55:02,720 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:02,720 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:02,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:02,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:02,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:02,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:02,767 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:02,767 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 13:55:02,767 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:02,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:02,768 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) [2021-08-27 13:55:02,768 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 [2021-08-27 13:55:02,772 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:55:02,772 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:02,786 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:55:02,786 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 13:55:02,805 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 [2021-08-27 13:55:02,806 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:02,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:02,810 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) [2021-08-27 13:55:02,813 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 [2021-08-27 13:55:02,814 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:55:02,814 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:02,839 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 [2021-08-27 13:55:02,839 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:02,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:02,840 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) [2021-08-27 13:55:02,841 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 [2021-08-27 13:55:02,842 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 13:55:02,842 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:02,868 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 13:55:02,871 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 [2021-08-27 13:55:02,872 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:02,872 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:02,872 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:02,872 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:02,872 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 13:55:02,872 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:02,872 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:02,872 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:02,872 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration2_Loop [2021-08-27 13:55:02,872 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:02,872 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:02,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:02,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:02,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:02,914 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 [2021-08-27 13:55:02,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:02,953 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:02,954 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 13:55:02,954 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:02,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:02,955 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) [2021-08-27 13:55:02,985 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 [2021-08-27 13:55:02,992 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:02,992 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:02,992 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:02,992 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:02,998 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:02,998 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:03,003 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 [2021-08-27 13:55:03,016 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:03,036 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 [2021-08-27 13:55:03,037 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:03,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:03,037 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) [2021-08-27 13:55:03,040 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 [2021-08-27 13:55:03,041 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 [2021-08-27 13:55:03,047 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:03,047 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:55:03,047 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:03,047 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:03,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:03,048 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:55:03,048 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:55:03,063 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 13:55:03,066 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 13:55:03,067 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-08-27 13:55:03,067 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:03,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:03,069 INFO L229 MonitoredProcess]: Starting monitored process 15 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) [2021-08-27 13:55:03,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-08-27 13:55:03,074 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 13:55:03,074 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 13:55:03,074 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 13:55:03,074 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0) = 1*ULTIMATE.start_main_~c~0 Supporting invariants [] [2021-08-27 13:55:03,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-08-27 13:55:03,097 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 13:55:03,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:03,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:03,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:03,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:03,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:03,130 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 13:55:03,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:03,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:03,156 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-27 13:55:03,156 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:55:03,166 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 16 transitions. Complement of second has 5 states. [2021-08-27 13:55:03,166 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 [2021-08-27 13:55:03,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:55:03,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-08-27 13:55:03,167 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2021-08-27 13:55:03,167 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:03,168 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-08-27 13:55:03,168 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:03,168 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2021-08-27 13:55:03,168 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:03,168 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2021-08-27 13:55:03,169 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 13:55:03,169 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2021-08-27 13:55:03,170 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-08-27 13:55:03,170 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-08-27 13:55:03,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2021-08-27 13:55:03,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 13:55:03,170 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-08-27 13:55:03,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2021-08-27 13:55:03,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-08-27 13:55:03,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 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) [2021-08-27 13:55:03,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2021-08-27 13:55:03,172 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-08-27 13:55:03,172 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-08-27 13:55:03,172 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-27 13:55:03,172 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2021-08-27 13:55:03,173 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 13:55:03,173 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:55:03,173 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:55:03,173 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2021-08-27 13:55:03,174 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 13:55:03,174 INFO L791 eck$LassoCheckResult]: Stem: 117#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~c~0, main_~n~0;havoc main_~c~0;havoc main_~n~0;main_~c~0 := 1;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; 118#L15-2 assume !!(main_~c~0 > 0); 119#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 120#L15-2 assume !!(main_~c~0 > 0); 125#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 123#L15-2 [2021-08-27 13:55:03,174 INFO L793 eck$LassoCheckResult]: Loop: 123#L15-2 assume !!(main_~c~0 > 0); 124#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 123#L15-2 [2021-08-27 13:55:03,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:03,174 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 2 times [2021-08-27 13:55:03,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:03,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167222223] [2021-08-27 13:55:03,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:03,175 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:03,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:03,181 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:03,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:03,187 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:03,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:03,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2021-08-27 13:55:03,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:03,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688449095] [2021-08-27 13:55:03,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:03,188 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:03,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:03,192 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:03,195 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:03,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:03,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1364196307, now seen corresponding path program 2 times [2021-08-27 13:55:03,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:03,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020204522] [2021-08-27 13:55:03,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:03,197 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:03,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:03,203 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:03,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:03,210 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:03,235 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:03,235 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:03,235 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:03,235 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:03,235 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 13:55:03,235 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:03,236 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:03,236 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:03,236 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration3_Loop [2021-08-27 13:55:03,236 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:03,236 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:03,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:03,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:03,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:03,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:03,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:03,331 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:03,331 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 13:55:03,331 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:03,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:03,336 INFO L229 MonitoredProcess]: Starting monitored process 16 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) [2021-08-27 13:55:03,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-08-27 13:55:03,339 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:55:03,339 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:03,369 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:55:03,369 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 13:55:03,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:03,387 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:03,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:03,387 INFO L229 MonitoredProcess]: Starting monitored process 17 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) [2021-08-27 13:55:03,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-08-27 13:55:03,389 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:55:03,389 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:03,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-08-27 13:55:03,415 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:03,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:03,415 INFO L229 MonitoredProcess]: Starting monitored process 18 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) [2021-08-27 13:55:03,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-08-27 13:55:03,417 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 13:55:03,417 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:03,444 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 13:55:03,447 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-08-27 13:55:03,448 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:03,448 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:03,448 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:03,448 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:03,448 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 13:55:03,448 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:03,448 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:03,448 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:03,448 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration3_Loop [2021-08-27 13:55:03,448 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:03,448 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:03,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:03,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:03,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:03,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:03,520 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:03,521 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 13:55:03,521 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:03,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:03,522 INFO L229 MonitoredProcess]: Starting monitored process 19 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) [2021-08-27 13:55:03,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-08-27 13:55:03,524 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 [2021-08-27 13:55:03,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:03,530 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:55:03,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:03,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:03,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:03,531 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:55:03,531 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:55:03,546 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 13:55:03,548 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 13:55:03,548 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-08-27 13:55:03,549 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:03,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:03,549 INFO L229 MonitoredProcess]: Starting monitored process 20 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) [2021-08-27 13:55:03,555 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 13:55:03,555 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 13:55:03,555 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 13:55:03,555 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0) = 1*ULTIMATE.start_main_~c~0 Supporting invariants [] [2021-08-27 13:55:03,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-08-27 13:55:03,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:03,583 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 13:55:03,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:03,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:03,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:03,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:03,610 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 13:55:03,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:03,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:03,624 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-27 13:55:03,624 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:55:03,630 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 20 transitions. Complement of second has 5 states. [2021-08-27 13:55:03,631 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 [2021-08-27 13:55:03,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:55:03,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-08-27 13:55:03,631 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-08-27 13:55:03,631 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:03,631 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:03,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:03,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:03,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:03,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:03,663 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 13:55:03,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:03,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:03,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:03,723 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-27 13:55:03,723 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:55:03,732 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 20 transitions. Complement of second has 5 states. [2021-08-27 13:55:03,732 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 [2021-08-27 13:55:03,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:55:03,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-08-27 13:55:03,733 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-08-27 13:55:03,733 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:03,733 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:03,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:03,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:03,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:03,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:03,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:03,765 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 13:55:03,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:03,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:03,784 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-27 13:55:03,784 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:55:03,791 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 23 transitions. Complement of second has 4 states. [2021-08-27 13:55:03,792 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 [2021-08-27 13:55:03,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:55:03,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-08-27 13:55:03,792 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2021-08-27 13:55:03,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:03,792 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2021-08-27 13:55:03,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:03,792 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2021-08-27 13:55:03,793 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:03,793 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 23 transitions. [2021-08-27 13:55:03,793 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-08-27 13:55:03,794 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 19 transitions. [2021-08-27 13:55:03,794 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-08-27 13:55:03,794 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-08-27 13:55:03,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2021-08-27 13:55:03,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 13:55:03,794 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2021-08-27 13:55:03,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2021-08-27 13:55:03,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2021-08-27 13:55:03,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-08-27 13:55:03,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2021-08-27 13:55:03,795 INFO L704 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2021-08-27 13:55:03,795 INFO L587 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2021-08-27 13:55:03,795 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-27 13:55:03,795 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2021-08-27 13:55:03,795 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-08-27 13:55:03,795 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:55:03,795 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:55:03,795 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-08-27 13:55:03,795 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 13:55:03,795 INFO L791 eck$LassoCheckResult]: Stem: 264#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~c~0, main_~n~0;havoc main_~c~0;havoc main_~n~0;main_~c~0 := 1;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; 265#L15-2 [2021-08-27 13:55:03,795 INFO L793 eck$LassoCheckResult]: Loop: 265#L15-2 assume !!(main_~c~0 > 0); 266#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 265#L15-2 [2021-08-27 13:55:03,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:03,796 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2021-08-27 13:55:03,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:03,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451503500] [2021-08-27 13:55:03,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:03,796 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:03,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:03,799 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:03,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:03,800 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:03,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:03,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1286, now seen corresponding path program 1 times [2021-08-27 13:55:03,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:03,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758714758] [2021-08-27 13:55:03,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:03,801 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:03,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:03,804 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:03,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:03,805 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:03,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:03,806 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 3 times [2021-08-27 13:55:03,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:03,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595021666] [2021-08-27 13:55:03,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:03,806 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:03,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:03,821 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:03,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:03,823 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:03,844 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:03,844 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:03,844 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:03,844 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:03,844 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 13:55:03,844 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:03,844 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:03,844 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:03,844 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration4_Loop [2021-08-27 13:55:03,844 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:03,844 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:03,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:03,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:03,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:03,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:03,885 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:03,885 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 13:55:03,886 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:03,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:03,893 INFO L229 MonitoredProcess]: Starting monitored process 21 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) [2021-08-27 13:55:03,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-08-27 13:55:03,896 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:55:03,896 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:03,914 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:55:03,914 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 13:55:03,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:03,931 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:03,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:03,932 INFO L229 MonitoredProcess]: Starting monitored process 22 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) [2021-08-27 13:55:03,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-08-27 13:55:03,934 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:55:03,934 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:03,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:03,976 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:03,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:03,991 INFO L229 MonitoredProcess]: Starting monitored process 23 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) [2021-08-27 13:55:03,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-08-27 13:55:03,993 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 13:55:03,993 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:04,011 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:55:04,011 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=1} Honda state: {ULTIMATE.start_main_~c~0=1} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=0}, {ULTIMATE.start_main_~c~0=1}, {ULTIMATE.start_main_~c~0=0}] Lambdas: [0, 1, 0] Nus: [0, 0] [2021-08-27 13:55:04,027 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-08-27 13:55:04,027 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:04,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:04,029 INFO L229 MonitoredProcess]: Starting monitored process 24 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) [2021-08-27 13:55:04,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-08-27 13:55:04,031 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:55:04,031 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:04,068 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-08-27 13:55:04,069 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:04,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:04,070 INFO L229 MonitoredProcess]: Starting monitored process 25 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) [2021-08-27 13:55:04,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-08-27 13:55:04,071 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 13:55:04,071 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:04,102 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 13:55:04,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:04,107 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:04,107 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:04,107 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:04,107 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:04,107 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 13:55:04,107 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:04,107 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:04,107 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:04,107 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration4_Loop [2021-08-27 13:55:04,107 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:04,107 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:04,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:04,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:04,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:04,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:04,176 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:04,176 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 13:55:04,176 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:04,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:04,177 INFO L229 MonitoredProcess]: Starting monitored process 26 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) [2021-08-27 13:55:04,184 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 [2021-08-27 13:55:04,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-08-27 13:55:04,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:04,191 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:55:04,191 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:04,191 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:04,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:04,192 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:55:04,192 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:55:04,206 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:04,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:04,222 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:04,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:04,222 INFO L229 MonitoredProcess]: Starting monitored process 27 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) [2021-08-27 13:55:04,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-08-27 13:55:04,224 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 [2021-08-27 13:55:04,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:04,230 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:55:04,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:04,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:04,230 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:04,231 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:55:04,231 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:55:04,246 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 13:55:04,248 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 13:55:04,248 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 13:55:04,248 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:04,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:04,249 INFO L229 MonitoredProcess]: Starting monitored process 28 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) [2021-08-27 13:55:04,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-08-27 13:55:04,251 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 13:55:04,251 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 13:55:04,251 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 13:55:04,251 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0) = -2*ULTIMATE.start_main_~n~0 + 211 Supporting invariants [] [2021-08-27 13:55:04,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:04,268 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 13:55:04,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:04,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:04,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:04,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:04,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:04,287 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 13:55:04,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:04,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:04,293 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-08-27 13:55:04,293 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-08-27 13:55:04,300 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 11 states and 17 transitions. Complement of second has 5 states. [2021-08-27 13:55:04,301 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 [2021-08-27 13:55:04,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-08-27 13:55:04,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3 transitions. [2021-08-27 13:55:04,301 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 1 letters. Loop has 2 letters. [2021-08-27 13:55:04,302 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:04,302 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 3 letters. Loop has 2 letters. [2021-08-27 13:55:04,302 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:04,302 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 1 letters. Loop has 4 letters. [2021-08-27 13:55:04,302 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:04,302 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 17 transitions. [2021-08-27 13:55:04,303 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-08-27 13:55:04,305 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 9 states and 13 transitions. [2021-08-27 13:55:04,305 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-08-27 13:55:04,305 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-08-27 13:55:04,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2021-08-27 13:55:04,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 13:55:04,305 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2021-08-27 13:55:04,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2021-08-27 13:55:04,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2021-08-27 13:55:04,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 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) [2021-08-27 13:55:04,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 12 transitions. [2021-08-27 13:55:04,307 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2021-08-27 13:55:04,307 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2021-08-27 13:55:04,307 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-08-27 13:55:04,307 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 12 transitions. [2021-08-27 13:55:04,308 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-08-27 13:55:04,308 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:55:04,308 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:55:04,309 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2021-08-27 13:55:04,309 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 13:55:04,309 INFO L791 eck$LassoCheckResult]: Stem: 309#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~c~0, main_~n~0;havoc main_~c~0;havoc main_~n~0;main_~c~0 := 1;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; 310#L15-2 assume !!(main_~c~0 > 0); 315#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 316#L15-2 assume !!(main_~c~0 > 0); 311#L15 [2021-08-27 13:55:04,309 INFO L793 eck$LassoCheckResult]: Loop: 311#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 312#L15-2 assume !!(main_~c~0 > 0); 311#L15 [2021-08-27 13:55:04,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:04,310 INFO L82 PathProgramCache]: Analyzing trace with hash 963335, now seen corresponding path program 2 times [2021-08-27 13:55:04,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:04,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343420771] [2021-08-27 13:55:04,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:04,310 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:04,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:04,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:04,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 13:55:04,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343420771] [2021-08-27 13:55:04,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343420771] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 13:55:04,349 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 13:55:04,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-27 13:55:04,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109313920] [2021-08-27 13:55:04,351 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 13:55:04,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:04,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 2 times [2021-08-27 13:55:04,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:04,353 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032735493] [2021-08-27 13:55:04,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:04,353 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:04,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:04,370 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:04,375 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:04,395 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:04,395 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:04,395 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:04,395 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:04,396 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 13:55:04,396 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:04,396 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:04,396 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:04,396 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration5_Loop [2021-08-27 13:55:04,396 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:04,396 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:04,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:04,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:04,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:04,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:04,449 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:04,449 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 13:55:04,450 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:04,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:04,454 INFO L229 MonitoredProcess]: Starting monitored process 29 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) [2021-08-27 13:55:04,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-08-27 13:55:04,456 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:55:04,456 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:04,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:04,479 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:04,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:04,480 INFO L229 MonitoredProcess]: Starting monitored process 30 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) [2021-08-27 13:55:04,482 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 13:55:04,482 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:04,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-08-27 13:55:04,503 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:55:04,503 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=0}, {ULTIMATE.start_main_~c~0=1}, {ULTIMATE.start_main_~c~0=0}] Lambdas: [15, 1, 14] Nus: [0, 1] [2021-08-27 13:55:04,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:04,521 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:04,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:04,523 INFO L229 MonitoredProcess]: Starting monitored process 31 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) [2021-08-27 13:55:04,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-08-27 13:55:04,532 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:55:04,532 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:04,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:04,564 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:04,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:04,564 INFO L229 MonitoredProcess]: Starting monitored process 32 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) [2021-08-27 13:55:04,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-08-27 13:55:04,567 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 13:55:04,567 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:04,597 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 13:55:04,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:04,600 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:04,600 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:04,600 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:04,600 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:04,600 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 13:55:04,600 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:04,600 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:04,600 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:04,600 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration5_Loop [2021-08-27 13:55:04,600 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:04,600 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:04,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:04,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:04,615 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:04,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:04,653 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:04,653 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 13:55:04,662 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:04,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:04,664 INFO L229 MonitoredProcess]: Starting monitored process 33 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) [2021-08-27 13:55:04,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-08-27 13:55:04,665 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 [2021-08-27 13:55:04,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:04,672 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:55:04,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:04,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:04,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:04,673 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:55:04,673 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:55:04,674 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:04,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-08-27 13:55:04,690 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:04,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:04,695 INFO L229 MonitoredProcess]: Starting monitored process 34 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) [2021-08-27 13:55:04,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-08-27 13:55:04,697 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 [2021-08-27 13:55:04,703 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:04,703 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:04,703 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:04,703 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:04,706 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:04,706 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:04,710 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:04,725 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-08-27 13:55:04,726 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:04,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:04,727 INFO L229 MonitoredProcess]: Starting monitored process 35 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) [2021-08-27 13:55:04,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-08-27 13:55:04,729 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 [2021-08-27 13:55:04,735 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:04,735 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:55:04,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:04,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:04,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:04,736 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:55:04,736 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:55:04,738 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 13:55:04,739 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 13:55:04,739 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 13:55:04,739 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:04,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:04,740 INFO L229 MonitoredProcess]: Starting monitored process 36 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) [2021-08-27 13:55:04,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-08-27 13:55:04,745 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 13:55:04,745 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 13:55:04,745 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 13:55:04,745 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0) = -2*ULTIMATE.start_main_~n~0 + 211 Supporting invariants [] [2021-08-27 13:55:04,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:04,761 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 13:55:04,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:04,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:04,812 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:04,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:04,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:04,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:04,827 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 13:55:04,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:04,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:04,860 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-27 13:55:04,860 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:55:04,867 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 17 transitions. Complement of second has 5 states. [2021-08-27 13:55:04,867 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 [2021-08-27 13:55:04,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:55:04,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-08-27 13:55:04,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 4 letters. Loop has 2 letters. [2021-08-27 13:55:04,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:04,868 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:04,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:04,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:04,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:04,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:04,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:04,890 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 13:55:04,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:04,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:04,910 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-27 13:55:04,910 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:55:04,921 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 10 states and 14 transitions. Complement of second has 5 states. [2021-08-27 13:55:04,922 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 [2021-08-27 13:55:04,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:55:04,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-08-27 13:55:04,922 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2021-08-27 13:55:04,922 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:04,922 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:04,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:04,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:04,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:04,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:04,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:04,945 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 13:55:04,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:04,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:04,964 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-27 13:55:04,965 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:55:04,970 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 20 transitions. Complement of second has 4 states. [2021-08-27 13:55:04,970 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 [2021-08-27 13:55:04,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:55:04,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-08-27 13:55:04,971 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2021-08-27 13:55:04,971 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:04,971 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2021-08-27 13:55:04,971 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:04,971 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 4 letters. [2021-08-27 13:55:04,971 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:04,972 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 20 transitions. [2021-08-27 13:55:04,972 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-08-27 13:55:04,972 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 12 states and 16 transitions. [2021-08-27 13:55:04,972 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-08-27 13:55:04,972 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2021-08-27 13:55:04,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2021-08-27 13:55:04,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 13:55:04,972 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-08-27 13:55:04,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2021-08-27 13:55:04,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 7. [2021-08-27 13:55:04,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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) [2021-08-27 13:55:04,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-08-27 13:55:04,973 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-08-27 13:55:04,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 13:55:04,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 13:55:04,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 13:55:04,976 INFO L87 Difference]: Start difference. First operand 7 states and 10 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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) [2021-08-27 13:55:05,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 13:55:05,002 INFO L93 Difference]: Finished difference Result 10 states and 12 transitions. [2021-08-27 13:55:05,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 13:55:05,002 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2021-08-27 13:55:05,004 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 13:55:05,004 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 8 states and 10 transitions. [2021-08-27 13:55:05,004 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-08-27 13:55:05,004 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2021-08-27 13:55:05,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2021-08-27 13:55:05,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 13:55:05,005 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-08-27 13:55:05,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2021-08-27 13:55:05,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2021-08-27 13:55:05,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 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) [2021-08-27 13:55:05,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-08-27 13:55:05,006 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-08-27 13:55:05,006 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-08-27 13:55:05,006 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-08-27 13:55:05,006 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2021-08-27 13:55:05,010 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 13:55:05,010 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:55:05,010 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:55:05,010 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 1, 1, 1] [2021-08-27 13:55:05,010 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2021-08-27 13:55:05,011 INFO L791 eck$LassoCheckResult]: Stem: 459#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~c~0, main_~n~0;havoc main_~c~0;havoc main_~n~0;main_~c~0 := 1;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; 460#L15-2 assume !!(main_~c~0 > 0); 463#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 462#L15-2 assume !!(main_~c~0 > 0); 464#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 465#L15-2 assume !!(main_~c~0 > 0); 461#L15 [2021-08-27 13:55:05,011 INFO L793 eck$LassoCheckResult]: Loop: 461#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 462#L15-2 assume !!(main_~c~0 > 0); 464#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 465#L15-2 assume !!(main_~c~0 > 0); 461#L15 [2021-08-27 13:55:05,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:05,011 INFO L82 PathProgramCache]: Analyzing trace with hash 925824930, now seen corresponding path program 3 times [2021-08-27 13:55:05,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:05,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298172129] [2021-08-27 13:55:05,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:05,012 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:05,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:05,022 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:05,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:05,033 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:05,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:05,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1380409, now seen corresponding path program 1 times [2021-08-27 13:55:05,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:05,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070863322] [2021-08-27 13:55:05,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:05,035 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:05,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:05,038 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:05,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:05,041 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:05,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:05,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1848815782, now seen corresponding path program 4 times [2021-08-27 13:55:05,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:05,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950851134] [2021-08-27 13:55:05,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:05,042 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:05,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:05,048 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:05,063 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:05,106 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:05,107 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:05,107 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:05,107 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:05,107 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 13:55:05,107 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:05,107 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:05,107 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:05,107 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration6_Loop [2021-08-27 13:55:05,107 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:05,107 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:05,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:05,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:05,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:05,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:05,167 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:05,167 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 13:55:05,167 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:05,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:05,181 INFO L229 MonitoredProcess]: Starting monitored process 37 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) [2021-08-27 13:55:05,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-08-27 13:55:05,183 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:55:05,183 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:05,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:05,220 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:05,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:05,221 INFO L229 MonitoredProcess]: Starting monitored process 38 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) [2021-08-27 13:55:05,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-08-27 13:55:05,223 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 13:55:05,223 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:05,231 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 13:55:05,246 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-08-27 13:55:05,246 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:05,246 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:05,246 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:05,246 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:05,246 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 13:55:05,246 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:05,246 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:05,246 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:05,246 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration6_Loop [2021-08-27 13:55:05,246 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:05,246 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:05,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:05,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:05,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:05,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:05,299 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:05,299 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 13:55:05,299 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:05,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:05,301 INFO L229 MonitoredProcess]: Starting monitored process 39 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) [2021-08-27 13:55:05,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-08-27 13:55:05,304 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 [2021-08-27 13:55:05,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:05,310 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:55:05,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:05,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:05,310 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:05,311 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:55:05,311 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:55:05,312 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 13:55:05,314 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 13:55:05,314 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 13:55:05,314 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:05,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:05,315 INFO L229 MonitoredProcess]: Starting monitored process 40 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) [2021-08-27 13:55:05,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-08-27 13:55:05,317 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 13:55:05,317 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 13:55:05,317 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 13:55:05,317 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0) = -2*ULTIMATE.start_main_~n~0 + 201 Supporting invariants [] [2021-08-27 13:55:05,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:05,335 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 13:55:05,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:05,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:05,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:05,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:05,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 13:55:05,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:05,418 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:05,419 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-08-27 13:55:05,419 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-08-27 13:55:05,424 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 13 states and 16 transitions. Complement of second has 5 states. [2021-08-27 13:55:05,424 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 [2021-08-27 13:55:05,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-08-27 13:55:05,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-08-27 13:55:05,425 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 4 letters. [2021-08-27 13:55:05,425 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:05,425 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:05,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:05,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:05,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:05,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:05,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 13:55:05,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:05,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:05,525 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:05,526 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2021-08-27 13:55:05,526 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-08-27 13:55:05,538 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 11 states and 14 transitions. Complement of second has 5 states. [2021-08-27 13:55:05,538 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 [2021-08-27 13:55:05,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-08-27 13:55:05,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-08-27 13:55:05,539 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 6 letters. Loop has 4 letters. [2021-08-27 13:55:05,539 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:05,539 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:05,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:05,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:05,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:05,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:05,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 13:55:05,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:05,601 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:05,601 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-08-27 13:55:05,601 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-08-27 13:55:05,606 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 16 states and 19 transitions. Complement of second has 4 states. [2021-08-27 13:55:05,607 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 [2021-08-27 13:55:05,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-08-27 13:55:05,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-08-27 13:55:05,607 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2021-08-27 13:55:05,607 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:05,607 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:05,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:05,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:05,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:05,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:05,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:05,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 13:55:05,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:05,688 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:05,688 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2021-08-27 13:55:05,688 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-08-27 13:55:05,704 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 13 states and 18 transitions. Complement of second has 4 states. [2021-08-27 13:55:05,704 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 [2021-08-27 13:55:05,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-08-27 13:55:05,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-08-27 13:55:05,705 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 4 letters. [2021-08-27 13:55:05,705 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:05,705 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:05,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:05,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:05,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:05,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 13:55:05,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:05,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:05,787 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-08-27 13:55:05,788 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-08-27 13:55:05,821 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 72 states and 96 transitions. Complement of second has 37 states 8 powerset states29 rank states. The highest rank that occured is 5 [2021-08-27 13:55:05,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-08-27 13:55:05,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-08-27 13:55:05,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2021-08-27 13:55:05,822 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 6 letters. Loop has 4 letters. [2021-08-27 13:55:05,822 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:05,822 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 10 letters. Loop has 4 letters. [2021-08-27 13:55:05,822 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:05,822 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 6 letters. Loop has 8 letters. [2021-08-27 13:55:05,823 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:05,823 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 96 transitions. [2021-08-27 13:55:05,824 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2021-08-27 13:55:05,824 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 27 states and 38 transitions. [2021-08-27 13:55:05,825 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2 [2021-08-27 13:55:05,825 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2 [2021-08-27 13:55:05,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 38 transitions. [2021-08-27 13:55:05,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 13:55:05,825 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 38 transitions. [2021-08-27 13:55:05,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 38 transitions. [2021-08-27 13:55:05,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 15. [2021-08-27 13:55:05,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 14 states have internal predecessors, (22), 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) [2021-08-27 13:55:05,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 22 transitions. [2021-08-27 13:55:05,827 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 22 transitions. [2021-08-27 13:55:05,827 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 22 transitions. [2021-08-27 13:55:05,827 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-08-27 13:55:05,827 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 22 transitions. [2021-08-27 13:55:05,827 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-08-27 13:55:05,827 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:55:05,827 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:55:05,828 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 2, 1, 1] [2021-08-27 13:55:05,828 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 2, 1] [2021-08-27 13:55:05,828 INFO L791 eck$LassoCheckResult]: Stem: 823#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~c~0, main_~n~0;havoc main_~c~0;havoc main_~n~0;main_~c~0 := 1;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; 825#L15-2 assume !!(main_~c~0 > 0); 828#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 827#L15-2 assume !!(main_~c~0 > 0); 833#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 832#L15-2 assume !!(main_~c~0 > 0); 831#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 830#L15-2 assume !!(main_~c~0 > 0); 826#L15 [2021-08-27 13:55:05,828 INFO L793 eck$LassoCheckResult]: Loop: 826#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 827#L15-2 assume !!(main_~c~0 > 0); 833#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 832#L15-2 assume !!(main_~c~0 > 0); 831#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 830#L15-2 assume !!(main_~c~0 > 0); 826#L15 [2021-08-27 13:55:05,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:05,828 INFO L82 PathProgramCache]: Analyzing trace with hash 659527871, now seen corresponding path program 5 times [2021-08-27 13:55:05,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:05,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093380756] [2021-08-27 13:55:05,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:05,829 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:05,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:05,850 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 13:55:05,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 13:55:05,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093380756] [2021-08-27 13:55:05,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093380756] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 13:55:05,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118770744] [2021-08-27 13:55:05,850 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 13:55:05,850 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 13:55:05,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:05,851 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 13:55:05,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2021-08-27 13:55:05,898 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-08-27 13:55:05,898 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 13:55:05,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 13:55:05,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:05,941 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 13:55:05,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118770744] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 13:55:05,941 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 13:55:05,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-08-27 13:55:05,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143651556] [2021-08-27 13:55:05,942 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 13:55:05,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:05,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1326573462, now seen corresponding path program 2 times [2021-08-27 13:55:05,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:05,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629326492] [2021-08-27 13:55:05,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:05,943 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:05,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:05,957 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:05,965 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:06,015 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:06,016 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:06,016 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:06,016 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:06,016 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 13:55:06,016 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:06,016 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:06,016 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:06,016 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration7_Loop [2021-08-27 13:55:06,016 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:06,016 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:06,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:06,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:06,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:06,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:06,069 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:06,069 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 13:55:06,069 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:06,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:06,070 INFO L229 MonitoredProcess]: Starting monitored process 42 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) [2021-08-27 13:55:06,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-08-27 13:55:06,072 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:55:06,072 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:06,084 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:55:06,084 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_13=1} Honda state: {v_rep~unnamed0~0~true_13=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 13:55:06,099 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-08-27 13:55:06,100 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:06,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:06,100 INFO L229 MonitoredProcess]: Starting monitored process 43 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) [2021-08-27 13:55:06,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-08-27 13:55:06,103 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:55:06,103 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:06,134 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-08-27 13:55:06,134 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:06,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:06,149 INFO L229 MonitoredProcess]: Starting monitored process 44 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) [2021-08-27 13:55:06,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-08-27 13:55:06,153 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 13:55:06,153 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:06,210 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 13:55:06,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:06,214 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:06,215 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:06,215 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:06,215 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:06,215 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 13:55:06,215 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:06,215 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:06,215 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:06,215 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration7_Loop [2021-08-27 13:55:06,215 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:06,215 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:06,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:06,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:06,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:06,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:06,258 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:06,258 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 13:55:06,258 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:06,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:06,259 INFO L229 MonitoredProcess]: Starting monitored process 45 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) [2021-08-27 13:55:06,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-08-27 13:55:06,261 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 [2021-08-27 13:55:06,268 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:06,268 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:06,268 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:06,268 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:06,270 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:06,270 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:06,272 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:06,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:06,293 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:06,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:06,294 INFO L229 MonitoredProcess]: Starting monitored process 46 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) [2021-08-27 13:55:06,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-08-27 13:55:06,296 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 [2021-08-27 13:55:06,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:06,303 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:55:06,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:06,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:06,303 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:06,303 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:55:06,304 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:55:06,305 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 13:55:06,307 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 13:55:06,307 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-08-27 13:55:06,307 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:06,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:06,308 INFO L229 MonitoredProcess]: Starting monitored process 47 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) [2021-08-27 13:55:06,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-08-27 13:55:06,319 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 13:55:06,319 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 13:55:06,319 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 13:55:06,319 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0) = 1*ULTIMATE.start_main_~n~0 Supporting invariants [] [2021-08-27 13:55:06,335 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-08-27 13:55:06,335 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 13:55:06,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:06,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:06,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:06,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:06,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 13:55:06,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:06,410 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:06,410 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-08-27 13:55:06,410 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 22 transitions. cyclomatic complexity: 9 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-08-27 13:55:06,429 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 22 transitions. cyclomatic complexity: 9. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 65 states and 87 transitions. Complement of second has 9 states. [2021-08-27 13:55:06,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-08-27 13:55:06,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-08-27 13:55:06,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2021-08-27 13:55:06,430 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 8 letters. Loop has 6 letters. [2021-08-27 13:55:06,430 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:06,430 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 14 letters. Loop has 6 letters. [2021-08-27 13:55:06,430 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:06,430 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 8 letters. Loop has 12 letters. [2021-08-27 13:55:06,430 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:06,430 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 87 transitions. [2021-08-27 13:55:06,431 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-08-27 13:55:06,432 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 54 states and 75 transitions. [2021-08-27 13:55:06,432 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-08-27 13:55:06,432 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-08-27 13:55:06,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 75 transitions. [2021-08-27 13:55:06,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 13:55:06,432 INFO L681 BuchiCegarLoop]: Abstraction has 54 states and 75 transitions. [2021-08-27 13:55:06,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 75 transitions. [2021-08-27 13:55:06,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 46. [2021-08-27 13:55:06,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 46 states have (on average 1.434782608695652) internal successors, (66), 45 states have internal predecessors, (66), 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) [2021-08-27 13:55:06,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 66 transitions. [2021-08-27 13:55:06,434 INFO L704 BuchiCegarLoop]: Abstraction has 46 states and 66 transitions. [2021-08-27 13:55:06,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 13:55:06,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 13:55:06,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-27 13:55:06,435 INFO L87 Difference]: Start difference. First operand 46 states and 66 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-08-27 13:55:06,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 13:55:06,444 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2021-08-27 13:55:06,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 13:55:06,444 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 60 transitions. [2021-08-27 13:55:06,445 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-08-27 13:55:06,445 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 33 states and 44 transitions. [2021-08-27 13:55:06,445 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2 [2021-08-27 13:55:06,445 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2 [2021-08-27 13:55:06,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 44 transitions. [2021-08-27 13:55:06,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 13:55:06,446 INFO L681 BuchiCegarLoop]: Abstraction has 33 states and 44 transitions. [2021-08-27 13:55:06,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 44 transitions. [2021-08-27 13:55:06,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 21. [2021-08-27 13:55:06,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 20 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:55:06,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 30 transitions. [2021-08-27 13:55:06,447 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2021-08-27 13:55:06,447 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2021-08-27 13:55:06,447 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-08-27 13:55:06,447 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 30 transitions. [2021-08-27 13:55:06,447 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-08-27 13:55:06,447 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:55:06,447 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:55:06,447 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 2, 2, 1] [2021-08-27 13:55:06,447 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 2, 1] [2021-08-27 13:55:06,447 INFO L791 eck$LassoCheckResult]: Stem: 1091#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~c~0, main_~n~0;havoc main_~c~0;havoc main_~n~0;main_~c~0 := 1;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; 1093#L15-2 assume !!(main_~c~0 > 0); 1111#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 1108#L15-2 assume !!(main_~c~0 > 0); 1101#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 1095#L15-2 assume !!(main_~c~0 > 0); 1102#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 1100#L15-2 assume !!(main_~c~0 > 0); 1099#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 1098#L15-2 assume !!(main_~c~0 > 0); 1094#L15 [2021-08-27 13:55:06,448 INFO L793 eck$LassoCheckResult]: Loop: 1094#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 1095#L15-2 assume !!(main_~c~0 > 0); 1102#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 1100#L15-2 assume !!(main_~c~0 > 0); 1099#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 1098#L15-2 assume !!(main_~c~0 > 0); 1094#L15 [2021-08-27 13:55:06,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:06,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1791617062, now seen corresponding path program 6 times [2021-08-27 13:55:06,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:06,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653198078] [2021-08-27 13:55:06,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:06,448 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:06,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:06,452 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:06,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:06,455 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:06,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:06,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1326573462, now seen corresponding path program 3 times [2021-08-27 13:55:06,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:06,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94719325] [2021-08-27 13:55:06,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:06,455 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:06,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:06,478 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:06,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:06,480 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:06,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:06,481 INFO L82 PathProgramCache]: Analyzing trace with hash 709032111, now seen corresponding path program 7 times [2021-08-27 13:55:06,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:06,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551699729] [2021-08-27 13:55:06,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:06,481 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:06,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:06,514 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 41 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 13:55:06,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 13:55:06,514 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551699729] [2021-08-27 13:55:06,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551699729] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 13:55:06,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476429308] [2021-08-27 13:55:06,515 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-27 13:55:06,515 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 13:55:06,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:06,515 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 13:55:06,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2021-08-27 13:55:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:06,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 13:55:06,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:06,614 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 41 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 13:55:06,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476429308] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 13:55:06,614 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 13:55:06,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-08-27 13:55:06,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743668940] [2021-08-27 13:55:06,656 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:06,657 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:06,657 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:06,657 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:06,657 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 13:55:06,657 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:06,657 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:06,657 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:06,657 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration8_Loop [2021-08-27 13:55:06,657 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:06,657 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:06,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:06,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:06,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:06,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:06,709 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:06,709 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 13:55:06,710 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:06,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:06,710 INFO L229 MonitoredProcess]: Starting monitored process 49 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) [2021-08-27 13:55:06,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-08-27 13:55:06,713 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:55:06,713 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:06,733 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:55:06,733 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 13:55:06,749 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-08-27 13:55:06,750 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:06,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:06,750 INFO L229 MonitoredProcess]: Starting monitored process 50 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) [2021-08-27 13:55:06,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-08-27 13:55:06,752 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:55:06,752 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:06,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:06,775 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:06,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:06,776 INFO L229 MonitoredProcess]: Starting monitored process 51 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) [2021-08-27 13:55:06,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-08-27 13:55:06,778 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 13:55:06,778 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:06,834 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 13:55:06,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:06,837 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:06,837 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:06,837 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:06,837 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:06,837 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 13:55:06,837 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:06,837 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:06,837 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:06,837 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration8_Loop [2021-08-27 13:55:06,837 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:06,837 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:06,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:06,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:06,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:06,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:06,887 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:06,887 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 13:55:06,887 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:06,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:06,893 INFO L229 MonitoredProcess]: Starting monitored process 52 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) [2021-08-27 13:55:06,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-08-27 13:55:06,895 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 [2021-08-27 13:55:06,902 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:06,902 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:06,902 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:06,902 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:06,904 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:06,904 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:06,918 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:06,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:06,935 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:06,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:06,941 INFO L229 MonitoredProcess]: Starting monitored process 53 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) [2021-08-27 13:55:06,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-08-27 13:55:06,982 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 [2021-08-27 13:55:06,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:06,990 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:55:06,990 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:06,990 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:06,990 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:06,991 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:55:06,991 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:55:07,004 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 13:55:07,006 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 13:55:07,006 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-08-27 13:55:07,007 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:07,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:07,008 INFO L229 MonitoredProcess]: Starting monitored process 54 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) [2021-08-27 13:55:07,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-08-27 13:55:07,010 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 13:55:07,010 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 13:55:07,010 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 13:55:07,010 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0) = 1*ULTIMATE.start_main_~n~0 Supporting invariants [] [2021-08-27 13:55:07,041 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2021-08-27 13:55:07,041 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 13:55:07,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:07,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:07,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:07,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:07,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:07,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 13:55:07,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:07,111 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:07,112 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-08-27 13:55:07,112 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 13 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-08-27 13:55:07,127 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 13. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 56 transitions. Complement of second has 7 states. [2021-08-27 13:55:07,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-27 13:55:07,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-08-27 13:55:07,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2021-08-27 13:55:07,130 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 10 letters. Loop has 6 letters. [2021-08-27 13:55:07,130 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:07,130 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:07,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:07,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:07,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:07,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:07,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:07,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:07,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 13:55:07,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:07,243 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:07,244 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2021-08-27 13:55:07,244 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 13 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-08-27 13:55:07,259 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 13. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 56 transitions. Complement of second has 7 states. [2021-08-27 13:55:07,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-27 13:55:07,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-08-27 13:55:07,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2021-08-27 13:55:07,260 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 10 letters. Loop has 6 letters. [2021-08-27 13:55:07,260 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:07,260 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:07,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:07,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:07,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:07,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:07,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:07,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 13:55:07,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:07,331 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:07,332 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-08-27 13:55:07,332 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 13 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-08-27 13:55:07,368 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 13. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 75 states and 99 transitions. Complement of second has 13 states. [2021-08-27 13:55:07,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-08-27 13:55:07,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-08-27 13:55:07,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2021-08-27 13:55:07,369 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 10 letters. Loop has 6 letters. [2021-08-27 13:55:07,370 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:07,370 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 16 letters. Loop has 6 letters. [2021-08-27 13:55:07,370 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:07,370 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 10 letters. Loop has 12 letters. [2021-08-27 13:55:07,370 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:07,370 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 99 transitions. [2021-08-27 13:55:07,372 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2021-08-27 13:55:07,373 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 52 states and 71 transitions. [2021-08-27 13:55:07,373 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-08-27 13:55:07,373 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2021-08-27 13:55:07,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 71 transitions. [2021-08-27 13:55:07,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 13:55:07,373 INFO L681 BuchiCegarLoop]: Abstraction has 52 states and 71 transitions. [2021-08-27 13:55:07,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 71 transitions. [2021-08-27 13:55:07,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 40. [2021-08-27 13:55:07,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.45) internal successors, (58), 39 states have internal predecessors, (58), 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) [2021-08-27 13:55:07,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 58 transitions. [2021-08-27 13:55:07,376 INFO L704 BuchiCegarLoop]: Abstraction has 40 states and 58 transitions. [2021-08-27 13:55:07,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 13:55:07,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 13:55:07,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-27 13:55:07,377 INFO L87 Difference]: Start difference. First operand 40 states and 58 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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) [2021-08-27 13:55:07,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 13:55:07,391 INFO L93 Difference]: Finished difference Result 68 states and 85 transitions. [2021-08-27 13:55:07,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 13:55:07,392 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 85 transitions. [2021-08-27 13:55:07,395 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 18 [2021-08-27 13:55:07,395 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 51 states and 67 transitions. [2021-08-27 13:55:07,395 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2 [2021-08-27 13:55:07,395 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-08-27 13:55:07,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 67 transitions. [2021-08-27 13:55:07,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 13:55:07,396 INFO L681 BuchiCegarLoop]: Abstraction has 51 states and 67 transitions. [2021-08-27 13:55:07,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 67 transitions. [2021-08-27 13:55:07,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 33. [2021-08-27 13:55:07,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.303030303030303) internal successors, (43), 32 states have internal predecessors, (43), 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) [2021-08-27 13:55:07,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2021-08-27 13:55:07,397 INFO L704 BuchiCegarLoop]: Abstraction has 33 states and 43 transitions. [2021-08-27 13:55:07,397 INFO L587 BuchiCegarLoop]: Abstraction has 33 states and 43 transitions. [2021-08-27 13:55:07,397 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-08-27 13:55:07,397 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 43 transitions. [2021-08-27 13:55:07,397 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2021-08-27 13:55:07,398 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:55:07,398 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:55:07,398 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2021-08-27 13:55:07,398 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 2, 2] [2021-08-27 13:55:07,398 INFO L791 eck$LassoCheckResult]: Stem: 1634#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~c~0, main_~n~0;havoc main_~c~0;havoc main_~n~0;main_~c~0 := 1;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; 1636#L15-2 assume !!(main_~c~0 > 0); 1654#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 1649#L15-2 assume !!(main_~c~0 > 0); 1645#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 1646#L15-2 [2021-08-27 13:55:07,399 INFO L793 eck$LassoCheckResult]: Loop: 1646#L15-2 assume !!(main_~c~0 > 0); 1643#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 1644#L15-2 assume !!(main_~c~0 > 0); 1648#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 1641#L15-2 assume !!(main_~c~0 > 0); 1637#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 1638#L15-2 assume !!(main_~c~0 > 0); 1645#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 1646#L15-2 [2021-08-27 13:55:07,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:07,399 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 4 times [2021-08-27 13:55:07,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:07,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499373067] [2021-08-27 13:55:07,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:07,399 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:07,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:07,403 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:07,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:07,404 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:07,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:07,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1687002897, now seen corresponding path program 4 times [2021-08-27 13:55:07,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:07,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199084174] [2021-08-27 13:55:07,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:07,405 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:07,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:07,417 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 13:55:07,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 13:55:07,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199084174] [2021-08-27 13:55:07,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199084174] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 13:55:07,417 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 13:55:07,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 13:55:07,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799478566] [2021-08-27 13:55:07,418 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 13:55:07,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 13:55:07,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 13:55:07,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 13:55:07,418 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. cyclomatic complexity: 14 Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-08-27 13:55:07,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 13:55:07,425 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2021-08-27 13:55:07,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 13:55:07,425 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 63 transitions. [2021-08-27 13:55:07,425 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2021-08-27 13:55:07,426 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 39 states and 47 transitions. [2021-08-27 13:55:07,426 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-08-27 13:55:07,426 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-08-27 13:55:07,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 47 transitions. [2021-08-27 13:55:07,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 13:55:07,426 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 47 transitions. [2021-08-27 13:55:07,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 47 transitions. [2021-08-27 13:55:07,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 33. [2021-08-27 13:55:07,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 32 states have internal predecessors, (41), 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) [2021-08-27 13:55:07,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions. [2021-08-27 13:55:07,428 INFO L704 BuchiCegarLoop]: Abstraction has 33 states and 41 transitions. [2021-08-27 13:55:07,428 INFO L587 BuchiCegarLoop]: Abstraction has 33 states and 41 transitions. [2021-08-27 13:55:07,428 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-08-27 13:55:07,428 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 41 transitions. [2021-08-27 13:55:07,428 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2021-08-27 13:55:07,428 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:55:07,428 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:55:07,429 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2021-08-27 13:55:07,429 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 3, 2] [2021-08-27 13:55:07,429 INFO L791 eck$LassoCheckResult]: Stem: 1725#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~c~0, main_~n~0;havoc main_~c~0;havoc main_~n~0;main_~c~0 := 1;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; 1727#L15-2 assume !!(main_~c~0 > 0); 1745#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 1740#L15-2 assume !!(main_~c~0 > 0); 1736#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 1732#L15-2 [2021-08-27 13:55:07,429 INFO L793 eck$LassoCheckResult]: Loop: 1732#L15-2 assume !!(main_~c~0 > 0); 1733#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 1735#L15-2 assume !!(main_~c~0 > 0); 1741#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 1739#L15-2 assume !!(main_~c~0 > 0); 1728#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 1729#L15-2 assume !!(main_~c~0 > 0); 1744#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 1742#L15-2 assume !!(main_~c~0 > 0); 1738#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 1732#L15-2 [2021-08-27 13:55:07,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:07,429 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 5 times [2021-08-27 13:55:07,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:07,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49764596] [2021-08-27 13:55:07,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:07,430 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:07,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:07,432 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:07,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:07,434 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:07,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:07,434 INFO L82 PathProgramCache]: Analyzing trace with hash 2007111828, now seen corresponding path program 5 times [2021-08-27 13:55:07,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:07,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254657759] [2021-08-27 13:55:07,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:07,435 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:07,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:07,437 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:07,440 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:07,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:07,440 INFO L82 PathProgramCache]: Analyzing trace with hash -254222659, now seen corresponding path program 8 times [2021-08-27 13:55:07,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:07,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775617533] [2021-08-27 13:55:07,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:07,444 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:07,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:07,451 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:07,454 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:07,522 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:07,522 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:07,522 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:07,522 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:07,522 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 13:55:07,522 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:07,522 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:07,522 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:07,522 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration10_Loop [2021-08-27 13:55:07,522 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:07,523 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:07,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:07,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:07,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:07,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:07,567 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:07,567 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 13:55:07,567 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:07,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:07,568 INFO L229 MonitoredProcess]: Starting monitored process 55 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) [2021-08-27 13:55:07,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-08-27 13:55:07,570 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:55:07,570 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:07,581 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:55:07,581 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_17=1} Honda state: {v_rep~unnamed0~0~true_17=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 13:55:07,598 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-08-27 13:55:07,598 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:07,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:07,598 INFO L229 MonitoredProcess]: Starting monitored process 56 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) [2021-08-27 13:55:07,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-08-27 13:55:07,600 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:55:07,600 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:07,623 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-08-27 13:55:07,623 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:07,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:07,624 INFO L229 MonitoredProcess]: Starting monitored process 57 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) [2021-08-27 13:55:07,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-08-27 13:55:07,626 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 13:55:07,626 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:07,958 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 13:55:07,961 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-08-27 13:55:07,961 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:07,961 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:07,961 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:07,961 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:07,961 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 13:55:07,961 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:07,961 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:07,961 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:07,961 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration10_Loop [2021-08-27 13:55:07,961 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:07,961 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:07,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:07,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:07,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:07,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:08,014 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:08,014 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 13:55:08,014 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:08,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:08,015 INFO L229 MonitoredProcess]: Starting monitored process 58 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) [2021-08-27 13:55:08,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-08-27 13:55:08,017 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 [2021-08-27 13:55:08,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:08,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:08,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:08,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:08,024 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:08,024 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:08,040 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:08,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-08-27 13:55:08,055 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:08,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:08,056 INFO L229 MonitoredProcess]: Starting monitored process 59 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) [2021-08-27 13:55:08,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-08-27 13:55:08,057 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 [2021-08-27 13:55:08,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:08,064 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:55:08,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:08,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:08,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:08,064 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:55:08,064 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:55:08,066 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 13:55:08,067 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 13:55:08,067 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-08-27 13:55:08,067 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:08,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:08,068 INFO L229 MonitoredProcess]: Starting monitored process 60 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) [2021-08-27 13:55:08,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-08-27 13:55:08,069 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 13:55:08,070 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 13:55:08,070 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 13:55:08,070 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0) = 1*ULTIMATE.start_main_~n~0 Supporting invariants [] [2021-08-27 13:55:08,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:08,085 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 13:55:08,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:08,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:08,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:08,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:08,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 13:55:08,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:08,192 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:08,192 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2021-08-27 13:55:08,192 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2021-08-27 13:55:08,195 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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 37 states and 47 transitions. Complement of second has 5 states. [2021-08-27 13:55:08,196 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 [2021-08-27 13:55:08,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2021-08-27 13:55:08,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-08-27 13:55:08,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 5 letters. Loop has 10 letters. [2021-08-27 13:55:08,196 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:08,196 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:08,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:08,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:08,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:08,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:08,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 13:55:08,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:08,291 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:08,292 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 5 loop predicates [2021-08-27 13:55:08,292 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2021-08-27 13:55:08,294 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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 37 states and 47 transitions. Complement of second has 5 states. [2021-08-27 13:55:08,295 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 [2021-08-27 13:55:08,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2021-08-27 13:55:08,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-08-27 13:55:08,295 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 5 letters. Loop has 10 letters. [2021-08-27 13:55:08,295 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:08,295 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:08,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:08,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:08,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:08,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:08,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 13:55:08,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:08,399 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:08,400 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2021-08-27 13:55:08,400 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2021-08-27 13:55:08,406 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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 46 states and 60 transitions. Complement of second has 4 states. [2021-08-27 13:55:08,407 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 [2021-08-27 13:55:08,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2021-08-27 13:55:08,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-08-27 13:55:08,407 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 10 letters. [2021-08-27 13:55:08,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:08,407 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:08,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:08,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:08,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:08,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:08,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 13:55:08,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:08,533 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:08,534 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 5 loop predicates [2021-08-27 13:55:08,534 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2021-08-27 13:55:08,557 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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 63 states and 75 transitions. Complement of second has 8 states. [2021-08-27 13:55:08,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-08-27 13:55:08,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2021-08-27 13:55:08,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2021-08-27 13:55:08,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 5 letters. Loop has 10 letters. [2021-08-27 13:55:08,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:08,558 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:08,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:08,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:08,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:08,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 13:55:08,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:08,676 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:08,676 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2021-08-27 13:55:08,676 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 33 states and 41 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2021-08-27 13:55:08,723 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:08,724 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:08,724 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:08,724 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:08,725 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:08,751 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:08,752 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:08,752 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:08,752 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:08,752 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:08,752 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:08,752 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:08,753 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:08,758 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 33 states and 41 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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 404 states and 547 transitions. Complement of second has 85 states 12 powerset states73 rank states. The highest rank that occured is 7 [2021-08-27 13:55:08,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-08-27 13:55:08,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2021-08-27 13:55:08,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 29 transitions. [2021-08-27 13:55:08,759 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 29 transitions. Stem has 5 letters. Loop has 10 letters. [2021-08-27 13:55:08,760 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:08,760 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 29 transitions. Stem has 15 letters. Loop has 10 letters. [2021-08-27 13:55:08,760 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:08,761 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 29 transitions. Stem has 5 letters. Loop has 20 letters. [2021-08-27 13:55:08,762 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:08,762 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 404 states and 547 transitions. [2021-08-27 13:55:08,768 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 24 [2021-08-27 13:55:08,770 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 404 states to 145 states and 187 transitions. [2021-08-27 13:55:08,770 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-08-27 13:55:08,770 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-08-27 13:55:08,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 145 states and 187 transitions. [2021-08-27 13:55:08,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 13:55:08,770 INFO L681 BuchiCegarLoop]: Abstraction has 145 states and 187 transitions. [2021-08-27 13:55:08,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states and 187 transitions. [2021-08-27 13:55:08,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 96. [2021-08-27 13:55:08,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 96 states have (on average 1.34375) internal successors, (129), 95 states have internal predecessors, (129), 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) [2021-08-27 13:55:08,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 129 transitions. [2021-08-27 13:55:08,776 INFO L704 BuchiCegarLoop]: Abstraction has 96 states and 129 transitions. [2021-08-27 13:55:08,776 INFO L587 BuchiCegarLoop]: Abstraction has 96 states and 129 transitions. [2021-08-27 13:55:08,776 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-08-27 13:55:08,776 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states and 129 transitions. [2021-08-27 13:55:08,777 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2021-08-27 13:55:08,777 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:55:08,777 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:55:08,777 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2021-08-27 13:55:08,777 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [7, 4, 3] [2021-08-27 13:55:08,778 INFO L791 eck$LassoCheckResult]: Stem: 2718#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~c~0, main_~n~0;havoc main_~c~0;havoc main_~n~0;main_~c~0 := 1;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; 2721#L15-2 assume !!(main_~c~0 > 0); 2753#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 2742#L15-2 assume !!(main_~c~0 > 0); 2730#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 2727#L15-2 [2021-08-27 13:55:08,778 INFO L793 eck$LassoCheckResult]: Loop: 2727#L15-2 assume !!(main_~c~0 > 0); 2728#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 2779#L15-2 assume !!(main_~c~0 > 0); 2773#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 2771#L15-2 assume !!(main_~c~0 > 0); 2765#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 2764#L15-2 assume !!(main_~c~0 > 0); 2763#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 2755#L15-2 assume !!(main_~c~0 > 0); 2734#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 2747#L15-2 assume !!(main_~c~0 > 0); 2745#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 2744#L15-2 assume !!(main_~c~0 > 0); 2732#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 2727#L15-2 [2021-08-27 13:55:08,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:08,778 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 6 times [2021-08-27 13:55:08,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:08,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361303962] [2021-08-27 13:55:08,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:08,779 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:08,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:08,782 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:08,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:08,784 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:08,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:08,784 INFO L82 PathProgramCache]: Analyzing trace with hash 822111324, now seen corresponding path program 6 times [2021-08-27 13:55:08,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:08,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784655594] [2021-08-27 13:55:08,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:08,785 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:08,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:08,788 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:08,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:08,807 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:08,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:08,808 INFO L82 PathProgramCache]: Analyzing trace with hash 128316933, now seen corresponding path program 9 times [2021-08-27 13:55:08,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:08,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328817369] [2021-08-27 13:55:08,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:08,809 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:08,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:08,814 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:08,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:08,821 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:08,911 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:08,911 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:08,911 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:08,911 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:08,911 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 13:55:08,911 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:08,911 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:08,912 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:08,912 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration11_Loop [2021-08-27 13:55:08,912 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:08,912 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:08,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:08,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:08,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:08,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:08,961 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:08,961 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 13:55:08,961 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:08,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:08,962 INFO L229 MonitoredProcess]: Starting monitored process 61 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) [2021-08-27 13:55:08,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-08-27 13:55:08,964 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:55:08,964 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:08,993 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2021-08-27 13:55:08,993 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:08,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:08,993 INFO L229 MonitoredProcess]: Starting monitored process 62 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) [2021-08-27 13:55:08,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-08-27 13:55:08,995 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 13:55:08,995 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:09,267 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 13:55:09,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:09,271 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:09,271 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:09,271 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:09,271 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:09,271 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 13:55:09,271 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:09,271 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:09,271 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:09,271 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration11_Loop [2021-08-27 13:55:09,271 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:09,271 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:09,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:09,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:09,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:09,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:09,317 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:09,317 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 13:55:09,317 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:09,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:09,323 INFO L229 MonitoredProcess]: Starting monitored process 63 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) [2021-08-27 13:55:09,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-08-27 13:55:09,325 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 [2021-08-27 13:55:09,331 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:09,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:09,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:09,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:09,333 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:09,333 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:09,335 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:09,353 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-08-27 13:55:09,353 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:09,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:09,354 INFO L229 MonitoredProcess]: Starting monitored process 64 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) [2021-08-27 13:55:09,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-08-27 13:55:09,356 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 [2021-08-27 13:55:09,362 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:09,362 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:09,362 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:09,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:09,364 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:09,364 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:09,366 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:09,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2021-08-27 13:55:09,384 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:09,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:09,384 INFO L229 MonitoredProcess]: Starting monitored process 65 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) [2021-08-27 13:55:09,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-08-27 13:55:09,390 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 [2021-08-27 13:55:09,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:09,396 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:55:09,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:09,396 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:09,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:09,397 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:55:09,397 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:55:09,422 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 13:55:09,424 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-08-27 13:55:09,424 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 13:55:09,424 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:09,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:09,425 INFO L229 MonitoredProcess]: Starting monitored process 66 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) [2021-08-27 13:55:09,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-08-27 13:55:09,427 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 13:55:09,427 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 13:55:09,427 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 13:55:09,427 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0) = 1*ULTIMATE.start_main_~n~0 Supporting invariants [] [2021-08-27 13:55:09,443 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2021-08-27 13:55:09,443 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 13:55:09,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:09,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:09,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:09,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 13:55:09,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:09,603 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:09,603 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 7 loop predicates [2021-08-27 13:55:09,603 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 96 states and 129 transitions. cyclomatic complexity: 42 Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-08-27 13:55:09,606 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 96 states and 129 transitions. cyclomatic complexity: 42. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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 104 states and 145 transitions. Complement of second has 5 states. [2021-08-27 13:55:09,607 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 [2021-08-27 13:55:09,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-08-27 13:55:09,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-08-27 13:55:09,607 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 5 letters. Loop has 14 letters. [2021-08-27 13:55:09,607 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:09,607 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:09,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:09,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:09,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:09,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:09,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:09,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 13:55:09,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:09,706 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:09,764 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:09,765 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 7 loop predicates [2021-08-27 13:55:09,765 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 96 states and 129 transitions. cyclomatic complexity: 42 Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-08-27 13:55:09,771 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 96 states and 129 transitions. cyclomatic complexity: 42. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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 104 states and 145 transitions. Complement of second has 5 states. [2021-08-27 13:55:09,771 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 [2021-08-27 13:55:09,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-08-27 13:55:09,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-08-27 13:55:09,771 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 5 letters. Loop has 14 letters. [2021-08-27 13:55:09,771 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:09,772 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:09,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:09,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:09,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:09,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:09,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:09,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 13:55:09,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:09,915 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:09,916 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 7 loop predicates [2021-08-27 13:55:09,916 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 96 states and 129 transitions. cyclomatic complexity: 42 Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-08-27 13:55:09,924 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 96 states and 129 transitions. cyclomatic complexity: 42. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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 146 states and 191 transitions. Complement of second has 4 states. [2021-08-27 13:55:09,929 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 [2021-08-27 13:55:09,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-08-27 13:55:09,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-08-27 13:55:09,930 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 14 letters. [2021-08-27 13:55:09,930 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:09,930 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:09,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:09,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:09,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:09,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:09,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:09,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 13:55:09,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:10,090 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:10,090 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 7 loop predicates [2021-08-27 13:55:10,090 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 96 states and 129 transitions. cyclomatic complexity: 42 Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-08-27 13:55:10,125 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 96 states and 129 transitions. cyclomatic complexity: 42. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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 172 states and 219 transitions. Complement of second has 8 states. [2021-08-27 13:55:10,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-08-27 13:55:10,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-08-27 13:55:10,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2021-08-27 13:55:10,125 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 5 letters. Loop has 14 letters. [2021-08-27 13:55:10,126 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:10,126 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:10,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:10,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:10,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:10,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 13:55:10,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:10,278 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:10,279 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 7 loop predicates [2021-08-27 13:55:10,279 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 96 states and 129 transitions. cyclomatic complexity: 42 Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-08-27 13:55:10,319 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,319 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,319 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,320 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,320 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,321 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,321 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,321 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,321 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,322 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,322 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,322 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,351 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,352 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,352 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,352 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,352 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,352 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,353 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,353 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,353 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,353 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,354 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,354 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,354 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,354 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,355 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,355 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,355 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,356 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,357 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,358 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,358 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,358 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,358 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,358 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,386 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,386 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,386 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,386 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,387 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,387 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,387 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,387 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,387 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,387 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,387 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,389 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,390 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,390 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,390 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,390 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,390 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,390 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,391 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,392 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,392 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,392 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,392 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,392 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,392 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,392 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:10,413 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 96 states and 129 transitions. cyclomatic complexity: 42 Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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 1787 states and 2714 transitions. Complement of second has 144 states 16 powerset states128 rank states. The highest rank that occured is 7 [2021-08-27 13:55:10,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 7 non-accepting loop states 1 accepting loop states [2021-08-27 13:55:10,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-08-27 13:55:10,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 39 transitions. [2021-08-27 13:55:10,414 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 39 transitions. Stem has 5 letters. Loop has 14 letters. [2021-08-27 13:55:10,414 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:10,414 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 39 transitions. Stem has 19 letters. Loop has 14 letters. [2021-08-27 13:55:10,415 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:10,415 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 39 transitions. Stem has 5 letters. Loop has 28 letters. [2021-08-27 13:55:10,417 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:10,417 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1787 states and 2714 transitions. [2021-08-27 13:55:10,426 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 33 [2021-08-27 13:55:10,429 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1787 states to 471 states and 636 transitions. [2021-08-27 13:55:10,429 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-08-27 13:55:10,429 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-08-27 13:55:10,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 471 states and 636 transitions. [2021-08-27 13:55:10,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 13:55:10,429 INFO L681 BuchiCegarLoop]: Abstraction has 471 states and 636 transitions. [2021-08-27 13:55:10,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states and 636 transitions. [2021-08-27 13:55:10,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 260. [2021-08-27 13:55:10,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 260 states have (on average 1.4461538461538461) internal successors, (376), 259 states have internal predecessors, (376), 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) [2021-08-27 13:55:10,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 376 transitions. [2021-08-27 13:55:10,452 INFO L704 BuchiCegarLoop]: Abstraction has 260 states and 376 transitions. [2021-08-27 13:55:10,452 INFO L587 BuchiCegarLoop]: Abstraction has 260 states and 376 transitions. [2021-08-27 13:55:10,452 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-08-27 13:55:10,452 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 260 states and 376 transitions. [2021-08-27 13:55:10,453 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2021-08-27 13:55:10,453 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:55:10,453 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:55:10,454 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2021-08-27 13:55:10,454 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [9, 5, 4] [2021-08-27 13:55:10,454 INFO L791 eck$LassoCheckResult]: Stem: 5631#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~c~0, main_~n~0;havoc main_~c~0;havoc main_~n~0;main_~c~0 := 1;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; 5634#L15-2 assume !!(main_~c~0 > 0); 5680#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 5650#L15-2 assume !!(main_~c~0 > 0); 5647#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 5644#L15-2 [2021-08-27 13:55:10,454 INFO L793 eck$LassoCheckResult]: Loop: 5644#L15-2 assume !!(main_~c~0 > 0); 5645#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 5815#L15-2 assume !!(main_~c~0 > 0); 5778#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 5776#L15-2 assume !!(main_~c~0 > 0); 5774#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 5772#L15-2 assume !!(main_~c~0 > 0); 5768#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 5769#L15-2 assume !!(main_~c~0 > 0); 5751#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 5752#L15-2 assume !!(main_~c~0 > 0); 5748#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 5749#L15-2 assume !!(main_~c~0 > 0); 5652#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 5674#L15-2 assume !!(main_~c~0 > 0); 5653#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 5651#L15-2 assume !!(main_~c~0 > 0); 5649#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 5644#L15-2 [2021-08-27 13:55:10,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:10,455 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 7 times [2021-08-27 13:55:10,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:10,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586537851] [2021-08-27 13:55:10,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:10,455 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:10,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:10,475 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:10,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:10,476 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:10,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:10,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1476420572, now seen corresponding path program 7 times [2021-08-27 13:55:10,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:10,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79219930] [2021-08-27 13:55:10,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:10,477 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:10,482 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:10,485 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:10,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:10,485 INFO L82 PathProgramCache]: Analyzing trace with hash 939927885, now seen corresponding path program 10 times [2021-08-27 13:55:10,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:10,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091417721] [2021-08-27 13:55:10,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:10,486 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:10,491 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:10,500 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:10,623 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:10,623 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:10,623 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:10,623 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:10,623 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 13:55:10,623 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:10,623 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:10,623 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:10,623 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration12_Loop [2021-08-27 13:55:10,623 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:10,623 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:10,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:10,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:10,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:10,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:10,664 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:10,664 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 13:55:10,664 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:10,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:10,665 INFO L229 MonitoredProcess]: Starting monitored process 67 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) [2021-08-27 13:55:10,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-08-27 13:55:10,667 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:55:10,667 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:10,679 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:55:10,679 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_21=0} Honda state: {v_rep~unnamed0~0~false_21=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 13:55:10,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:10,695 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:10,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:10,696 INFO L229 MonitoredProcess]: Starting monitored process 68 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) [2021-08-27 13:55:10,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-08-27 13:55:10,698 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:55:10,698 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:10,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:10,720 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:10,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:10,720 INFO L229 MonitoredProcess]: Starting monitored process 69 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) [2021-08-27 13:55:10,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-08-27 13:55:10,722 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 13:55:10,722 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:10,747 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 13:55:10,750 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2021-08-27 13:55:10,750 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:10,750 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:10,750 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:10,750 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:10,750 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 13:55:10,750 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:10,750 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:10,750 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:10,750 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration12_Loop [2021-08-27 13:55:10,750 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:10,750 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:10,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:10,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:10,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:10,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:10,800 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:10,800 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 13:55:10,800 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:10,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:10,801 INFO L229 MonitoredProcess]: Starting monitored process 70 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) [2021-08-27 13:55:10,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-08-27 13:55:10,803 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 [2021-08-27 13:55:10,809 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:10,809 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:10,809 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:10,809 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:10,810 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:10,810 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:10,813 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:10,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:10,829 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:10,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:10,829 INFO L229 MonitoredProcess]: Starting monitored process 71 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) [2021-08-27 13:55:10,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-08-27 13:55:10,837 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 [2021-08-27 13:55:10,843 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:10,843 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:10,843 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:10,843 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:10,845 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:10,845 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:10,846 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:10,862 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:10,862 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:10,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:10,863 INFO L229 MonitoredProcess]: Starting monitored process 72 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) [2021-08-27 13:55:10,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-08-27 13:55:10,866 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:10,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:10,873 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:55:10,873 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:10,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:10,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:10,874 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:55:10,874 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:55:10,880 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 13:55:10,882 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-08-27 13:55:10,882 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 13:55:10,882 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:10,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:10,882 INFO L229 MonitoredProcess]: Starting monitored process 73 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) [2021-08-27 13:55:10,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-08-27 13:55:10,884 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 13:55:10,884 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 13:55:10,884 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 13:55:10,884 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0) = 1*ULTIMATE.start_main_~n~0 Supporting invariants [] [2021-08-27 13:55:10,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:10,900 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 13:55:10,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:10,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:10,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:10,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:10,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:10,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-27 13:55:10,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:11,105 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 36 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:11,105 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates [2021-08-27 13:55:11,106 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 260 states and 376 transitions. cyclomatic complexity: 137 Second operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 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) [2021-08-27 13:55:11,110 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 260 states and 376 transitions. cyclomatic complexity: 137. Second operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 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 276 states and 420 transitions. Complement of second has 5 states. [2021-08-27 13:55:11,111 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 [2021-08-27 13:55:11,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 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) [2021-08-27 13:55:11,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-08-27 13:55:11,111 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 5 letters. Loop has 18 letters. [2021-08-27 13:55:11,112 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:11,112 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:11,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:11,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:11,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:11,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:11,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-27 13:55:11,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:11,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:11,288 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 36 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:11,292 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 9 loop predicates [2021-08-27 13:55:11,293 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 260 states and 376 transitions. cyclomatic complexity: 137 Second operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 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) [2021-08-27 13:55:11,296 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 260 states and 376 transitions. cyclomatic complexity: 137. Second operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 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 276 states and 420 transitions. Complement of second has 5 states. [2021-08-27 13:55:11,296 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 [2021-08-27 13:55:11,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 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) [2021-08-27 13:55:11,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-08-27 13:55:11,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 5 letters. Loop has 18 letters. [2021-08-27 13:55:11,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:11,297 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:11,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:11,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:11,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:11,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:11,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-27 13:55:11,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:11,482 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 36 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:11,483 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates [2021-08-27 13:55:11,483 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 260 states and 376 transitions. cyclomatic complexity: 137 Second operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 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) [2021-08-27 13:55:11,488 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 260 states and 376 transitions. cyclomatic complexity: 137. Second operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 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 392 states and 537 transitions. Complement of second has 4 states. [2021-08-27 13:55:11,488 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 [2021-08-27 13:55:11,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 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) [2021-08-27 13:55:11,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-08-27 13:55:11,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 18 letters. [2021-08-27 13:55:11,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:11,489 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:11,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:11,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:11,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:11,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:11,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:11,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-27 13:55:11,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:11,673 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 36 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:11,674 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 9 loop predicates [2021-08-27 13:55:11,674 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 260 states and 376 transitions. cyclomatic complexity: 137 Second operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 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) [2021-08-27 13:55:11,697 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 260 states and 376 transitions. cyclomatic complexity: 137. Second operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 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 455 states and 606 transitions. Complement of second has 8 states. [2021-08-27 13:55:11,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-08-27 13:55:11,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 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) [2021-08-27 13:55:11,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2021-08-27 13:55:11,698 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 5 letters. Loop has 18 letters. [2021-08-27 13:55:11,698 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:11,698 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:11,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:11,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:11,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:11,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:11,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-27 13:55:11,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:11,888 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 36 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:11,889 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates [2021-08-27 13:55:11,889 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 260 states and 376 transitions. cyclomatic complexity: 137 Second operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 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) [2021-08-27 13:55:11,917 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,918 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,918 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,918 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,919 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,919 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,919 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,919 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,919 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,920 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,920 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,920 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,920 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,921 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,921 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,921 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,921 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,921 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,922 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,922 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,922 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,922 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,923 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,923 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,923 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,923 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,923 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,924 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,966 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,966 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,966 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,966 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,966 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,966 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,966 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,966 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,967 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,967 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,967 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,967 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,968 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,968 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,968 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,968 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,968 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,968 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,968 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,968 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,968 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,968 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,969 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,969 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,969 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,969 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,970 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,970 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,970 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,970 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,970 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,970 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,971 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,971 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,971 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,971 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,971 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,972 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,972 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,972 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,972 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,972 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,973 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,973 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,973 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,973 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,973 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,973 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,974 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,974 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,974 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,974 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,974 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,975 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,975 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:11,975 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,002 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,002 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,002 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,002 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,002 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,002 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,003 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,003 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,003 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,003 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,003 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,004 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,004 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,004 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,004 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,004 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,005 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,005 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,005 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,006 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,006 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,006 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,006 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,006 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,006 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,006 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,006 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,007 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,007 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,007 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,007 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,007 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,007 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,007 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,008 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,008 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,008 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,008 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,009 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,009 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,009 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,009 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,009 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,010 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,010 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,011 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,011 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,011 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,011 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,011 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,011 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,012 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,012 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,012 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,012 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,012 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,013 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,013 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,013 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,013 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,013 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,014 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,014 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,014 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,014 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,014 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,014 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,015 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,015 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,015 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,015 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,015 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,016 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,016 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,060 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,061 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,061 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,061 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,061 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,061 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,061 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,062 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,062 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,062 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,062 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,063 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,063 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,064 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,064 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,064 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,064 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,065 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,065 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,065 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,065 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,065 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,066 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,066 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,066 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,066 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,067 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,067 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,067 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,068 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,068 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,068 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,068 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,068 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,069 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,069 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,069 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,070 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,070 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,070 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,070 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,070 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,071 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,071 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,071 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,072 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,072 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,072 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,072 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,073 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,073 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,073 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,073 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,073 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,074 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,074 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,074 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,074 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:12,097 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 260 states and 376 transitions. cyclomatic complexity: 137 Second operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 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 5484 states and 8953 transitions. Complement of second has 178 states 20 powerset states158 rank states. The highest rank that occured is 7 [2021-08-27 13:55:12,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 1 stem states 9 non-accepting loop states 1 accepting loop states [2021-08-27 13:55:12,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 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) [2021-08-27 13:55:12,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 49 transitions. [2021-08-27 13:55:12,098 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 49 transitions. Stem has 5 letters. Loop has 18 letters. [2021-08-27 13:55:12,100 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:12,100 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 49 transitions. Stem has 23 letters. Loop has 18 letters. [2021-08-27 13:55:12,100 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:12,100 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 49 transitions. Stem has 5 letters. Loop has 36 letters. [2021-08-27 13:55:12,101 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:12,101 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5484 states and 8953 transitions. [2021-08-27 13:55:12,131 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 42 [2021-08-27 13:55:12,138 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5484 states to 1391 states and 1971 transitions. [2021-08-27 13:55:12,138 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-08-27 13:55:12,138 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-08-27 13:55:12,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1391 states and 1971 transitions. [2021-08-27 13:55:12,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 13:55:12,138 INFO L681 BuchiCegarLoop]: Abstraction has 1391 states and 1971 transitions. [2021-08-27 13:55:12,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1391 states and 1971 transitions. [2021-08-27 13:55:12,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1391 to 660. [2021-08-27 13:55:12,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 660 states have (on average 1.5893939393939394) internal successors, (1049), 659 states have internal predecessors, (1049), 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) [2021-08-27 13:55:12,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 1049 transitions. [2021-08-27 13:55:12,151 INFO L704 BuchiCegarLoop]: Abstraction has 660 states and 1049 transitions. [2021-08-27 13:55:12,151 INFO L587 BuchiCegarLoop]: Abstraction has 660 states and 1049 transitions. [2021-08-27 13:55:12,151 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-08-27 13:55:12,151 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 660 states and 1049 transitions. [2021-08-27 13:55:12,154 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2021-08-27 13:55:12,154 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:55:12,154 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:55:12,155 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2021-08-27 13:55:12,155 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [11, 6, 5] [2021-08-27 13:55:12,155 INFO L791 eck$LassoCheckResult]: Stem: 13384#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~c~0, main_~n~0;havoc main_~c~0;havoc main_~n~0;main_~c~0 := 1;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; 13389#L15-2 assume !!(main_~c~0 > 0); 13475#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 13411#L15-2 assume !!(main_~c~0 > 0); 13408#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 13405#L15-2 [2021-08-27 13:55:12,155 INFO L793 eck$LassoCheckResult]: Loop: 13405#L15-2 assume !!(main_~c~0 > 0); 13406#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 14038#L15-2 assume !!(main_~c~0 > 0); 13902#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 13900#L15-2 assume !!(main_~c~0 > 0); 13898#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 13896#L15-2 assume !!(main_~c~0 > 0); 13894#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 13890#L15-2 assume !!(main_~c~0 > 0); 13888#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 13886#L15-2 assume !!(main_~c~0 > 0); 13882#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 13883#L15-2 assume !!(main_~c~0 > 0); 13868#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 13661#L15-2 assume !!(main_~c~0 > 0); 13866#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 13867#L15-2 assume !!(main_~c~0 > 0); 13413#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 13415#L15-2 assume !!(main_~c~0 > 0); 13414#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 13412#L15-2 assume !!(main_~c~0 > 0); 13410#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 13405#L15-2 [2021-08-27 13:55:12,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:12,155 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 8 times [2021-08-27 13:55:12,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:12,156 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000100966] [2021-08-27 13:55:12,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:12,156 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:12,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:12,160 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:12,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:12,162 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:12,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:12,162 INFO L82 PathProgramCache]: Analyzing trace with hash 684828652, now seen corresponding path program 8 times [2021-08-27 13:55:12,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:12,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352316521] [2021-08-27 13:55:12,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:12,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:12,170 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:12,176 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:12,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:12,176 INFO L82 PathProgramCache]: Analyzing trace with hash 185301141, now seen corresponding path program 11 times [2021-08-27 13:55:12,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:12,177 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190754524] [2021-08-27 13:55:12,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:12,177 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:12,183 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:12,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:12,187 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:12,365 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:12,365 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:12,365 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:12,365 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:12,365 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 13:55:12,365 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:12,366 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:12,366 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:12,366 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration13_Loop [2021-08-27 13:55:12,366 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:12,366 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:12,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:12,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:12,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:12,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:12,411 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:12,412 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 13:55:12,412 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:12,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:12,417 INFO L229 MonitoredProcess]: Starting monitored process 74 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) [2021-08-27 13:55:12,425 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:55:12,425 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:12,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-08-27 13:55:12,441 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:55:12,441 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_23=1} Honda state: {v_rep~unnamed0~0~true_23=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 13:55:12,457 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:12,458 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:12,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:12,459 INFO L229 MonitoredProcess]: Starting monitored process 75 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) [2021-08-27 13:55:12,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-08-27 13:55:12,462 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:55:12,462 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:12,485 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:55:12,485 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_23=0} Honda state: {v_rep~unnamed0~0~false_23=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 13:55:12,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:12,503 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:12,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:12,504 INFO L229 MonitoredProcess]: Starting monitored process 76 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) [2021-08-27 13:55:12,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-08-27 13:55:12,509 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:55:12,509 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:12,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:12,547 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:12,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:12,548 INFO L229 MonitoredProcess]: Starting monitored process 77 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) [2021-08-27 13:55:12,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-08-27 13:55:12,562 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 13:55:12,562 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:12,596 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 13:55:12,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:12,599 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:12,599 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:12,599 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:12,599 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:12,599 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 13:55:12,599 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:12,599 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:12,599 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:12,599 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration13_Loop [2021-08-27 13:55:12,599 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:12,600 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:12,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:12,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:12,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:12,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:12,647 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:12,647 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 13:55:12,648 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:12,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:12,661 INFO L229 MonitoredProcess]: Starting monitored process 78 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) [2021-08-27 13:55:12,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-08-27 13:55:12,662 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 [2021-08-27 13:55:12,670 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:12,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:12,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:12,670 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:12,672 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:12,672 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:12,685 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:12,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:12,702 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:12,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:12,702 INFO L229 MonitoredProcess]: Starting monitored process 79 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) [2021-08-27 13:55:12,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-08-27 13:55:12,704 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 [2021-08-27 13:55:12,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:12,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:12,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:12,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:12,712 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:12,712 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:12,718 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:12,738 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:12,738 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:12,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:12,739 INFO L229 MonitoredProcess]: Starting monitored process 80 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) [2021-08-27 13:55:12,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-08-27 13:55:12,741 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 [2021-08-27 13:55:12,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:12,747 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:55:12,747 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:12,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:12,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:12,748 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:55:12,748 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:55:12,750 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 13:55:12,752 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 13:55:12,752 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-08-27 13:55:12,752 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:12,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:12,752 INFO L229 MonitoredProcess]: Starting monitored process 81 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) [2021-08-27 13:55:12,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2021-08-27 13:55:12,754 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 13:55:12,755 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 13:55:12,755 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 13:55:12,755 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0) = 1*ULTIMATE.start_main_~n~0 Supporting invariants [] [2021-08-27 13:55:12,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:12,770 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 13:55:12,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:12,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:12,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:12,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-27 13:55:12,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:12,827 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Ended with exit code 0 [2021-08-27 13:55:13,007 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 50 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:13,008 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 11 loop predicates [2021-08-27 13:55:13,008 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 660 states and 1049 transitions. cyclomatic complexity: 434 Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 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) [2021-08-27 13:55:13,025 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 660 states and 1049 transitions. cyclomatic complexity: 434. Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 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 692 states and 1173 transitions. Complement of second has 5 states. [2021-08-27 13:55:13,025 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 [2021-08-27 13:55:13,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 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) [2021-08-27 13:55:13,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-08-27 13:55:13,026 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 5 letters. Loop has 22 letters. [2021-08-27 13:55:13,027 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:13,027 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:13,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:13,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:13,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:13,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:13,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-27 13:55:13,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:13,269 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 50 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:13,270 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 11 loop predicates [2021-08-27 13:55:13,270 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 660 states and 1049 transitions. cyclomatic complexity: 434 Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 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) [2021-08-27 13:55:13,276 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 660 states and 1049 transitions. cyclomatic complexity: 434. Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 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 692 states and 1173 transitions. Complement of second has 5 states. [2021-08-27 13:55:13,277 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 [2021-08-27 13:55:13,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 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) [2021-08-27 13:55:13,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-08-27 13:55:13,277 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 5 letters. Loop has 22 letters. [2021-08-27 13:55:13,277 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:13,277 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:13,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:13,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:13,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:13,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:13,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:13,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-27 13:55:13,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:13,517 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 50 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:13,518 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 11 loop predicates [2021-08-27 13:55:13,518 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 660 states and 1049 transitions. cyclomatic complexity: 434 Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 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) [2021-08-27 13:55:13,525 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 660 states and 1049 transitions. cyclomatic complexity: 434. Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 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 996 states and 1456 transitions. Complement of second has 4 states. [2021-08-27 13:55:13,525 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 [2021-08-27 13:55:13,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 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) [2021-08-27 13:55:13,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-08-27 13:55:13,526 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 22 letters. [2021-08-27 13:55:13,526 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:13,526 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:13,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:13,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:13,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:13,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:13,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-27 13:55:13,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:13,727 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 50 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:13,727 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 11 loop predicates [2021-08-27 13:55:13,727 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 660 states and 1049 transitions. cyclomatic complexity: 434 Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 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) [2021-08-27 13:55:13,749 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 660 states and 1049 transitions. cyclomatic complexity: 434. Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 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 1149 states and 1623 transitions. Complement of second has 8 states. [2021-08-27 13:55:13,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-08-27 13:55:13,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 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) [2021-08-27 13:55:13,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2021-08-27 13:55:13,750 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 5 letters. Loop has 22 letters. [2021-08-27 13:55:13,750 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:13,750 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:13,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:13,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:13,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:13,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:13,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:13,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-27 13:55:13,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:13,959 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 50 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:13,959 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 11 loop predicates [2021-08-27 13:55:13,959 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 660 states and 1049 transitions. cyclomatic complexity: 434 Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 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) [2021-08-27 13:55:13,999 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:13,999 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,000 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,000 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,000 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,000 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,001 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,001 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,001 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,001 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,001 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,001 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,001 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,002 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,002 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,002 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,002 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,002 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,003 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,003 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,003 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,003 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,003 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,003 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,003 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,004 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,004 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,004 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,004 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,004 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,005 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,005 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,005 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,005 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,005 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,005 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,006 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,006 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,006 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,006 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,006 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,007 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,007 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,007 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,007 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,007 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,007 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,008 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,008 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,008 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,008 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,008 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,008 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,009 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,009 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,009 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,009 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,009 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,009 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,010 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,037 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,037 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,037 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,038 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,038 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,038 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,038 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,038 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,039 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,039 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,039 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,039 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,040 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,040 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,040 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,040 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,040 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,040 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,040 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,041 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,041 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,041 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,041 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,041 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,041 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,041 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,041 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,042 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,042 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,042 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,042 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,042 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,042 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,043 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,043 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,043 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,043 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,043 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,044 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,044 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,044 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,044 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,044 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,044 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,044 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,044 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,044 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,045 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,045 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,045 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,045 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,045 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,045 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,046 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,046 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,046 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,046 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,046 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,047 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,047 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,047 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,047 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,047 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,048 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,048 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,048 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,048 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,048 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,048 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,048 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,048 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,048 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,049 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,049 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,049 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,049 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,049 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,050 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,050 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,050 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,050 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,050 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,050 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,051 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,051 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,051 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,051 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,051 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,051 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,051 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,052 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,052 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,052 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,052 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,053 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,053 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,053 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,053 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,053 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,053 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,053 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,053 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,054 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,054 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,054 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,054 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,054 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,055 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,055 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,055 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,055 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,055 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,055 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,055 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,056 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,056 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,056 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,056 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,056 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,056 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,095 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,095 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,095 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,095 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,095 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,096 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,096 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,096 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,096 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,097 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,097 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,097 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,097 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,098 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,098 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,098 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,098 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,098 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,099 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,099 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,100 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,100 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,100 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,100 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,100 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,100 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,100 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,100 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,101 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,101 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,101 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,101 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,101 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,101 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,101 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,101 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,101 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,102 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,102 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,102 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,102 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,102 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,102 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,102 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,102 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,103 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,103 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,103 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,103 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,104 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,104 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,104 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,104 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,104 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,105 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,105 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,105 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,105 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,105 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,105 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,105 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,106 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,106 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,106 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,106 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,106 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,106 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,106 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,106 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,106 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,107 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,107 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,107 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,107 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,108 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,108 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,108 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,108 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,108 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,108 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,108 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,108 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,109 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,109 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,109 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,109 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,110 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,110 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,110 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,110 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,110 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,111 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,111 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,111 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,111 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,111 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,111 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,111 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,112 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,112 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,112 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,112 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,112 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,112 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,112 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,112 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,113 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,113 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,113 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,113 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,113 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,114 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,114 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,114 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,114 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,114 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,114 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,114 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,114 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,115 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,115 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,115 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,115 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,115 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,115 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,116 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,116 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,116 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,116 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,117 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,117 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,117 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,117 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,117 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,117 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,118 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,118 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,118 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,118 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,118 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,118 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,119 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,119 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,119 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,119 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,119 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,119 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,119 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,119 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,120 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,120 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,120 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,120 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,120 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,121 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,121 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,121 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,121 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,121 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,121 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,121 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,122 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,122 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,122 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,122 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,122 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,122 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,123 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,123 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,123 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,177 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,177 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,177 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,177 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,177 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,177 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,178 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,178 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,178 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,178 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,179 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,179 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,179 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,180 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,180 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,180 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,180 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,180 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,181 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,181 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,181 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,181 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,181 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,181 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,182 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,182 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,182 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,182 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,182 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,182 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,182 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,182 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,182 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,183 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,183 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,183 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,183 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,183 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,183 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,183 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,183 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,183 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,184 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,184 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,184 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,184 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,184 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,184 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,185 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,185 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,185 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,185 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,185 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,186 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,186 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,186 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,187 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,187 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,187 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,187 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,187 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,187 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,187 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,187 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,187 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,188 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,188 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,188 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,188 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,188 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,188 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,188 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,189 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,189 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,189 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,189 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,189 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,190 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,190 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,190 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,196 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,196 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,196 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,196 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,197 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,197 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,197 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,197 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,197 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,197 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,197 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,197 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,197 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,198 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,198 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,198 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,198 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,198 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,198 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,198 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,199 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,199 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,199 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,199 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,199 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,199 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,200 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,200 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,200 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,200 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,200 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,200 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,200 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,201 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,201 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,201 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,201 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,202 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,202 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,202 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,202 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,202 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,203 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,203 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,203 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,203 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,203 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,203 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,203 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,204 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,204 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,204 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,204 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,204 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,204 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,204 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,204 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,205 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,205 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,205 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,205 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,205 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,206 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,206 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,206 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,206 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,206 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,207 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,207 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,207 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,207 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,207 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,207 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,207 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,256 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,257 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,257 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,257 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,257 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,257 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,257 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,257 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,257 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,258 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,258 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,258 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,259 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,259 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,259 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,259 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,260 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,260 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,260 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,260 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,260 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,260 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,260 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,260 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,261 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,261 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,261 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,261 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,261 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,261 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,261 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,261 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,262 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,262 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,262 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,262 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,262 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,262 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,262 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,262 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,262 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,263 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,263 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,263 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,263 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,263 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,263 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,263 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,264 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,264 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,264 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,264 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,264 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,265 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,265 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,265 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,265 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,265 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,266 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,266 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,266 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,266 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,266 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,266 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,267 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,267 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,267 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,267 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,267 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,268 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,268 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,268 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,268 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,268 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,268 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,268 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,268 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,269 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,269 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,269 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,269 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,269 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,269 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,269 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,270 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,270 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,270 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,270 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,270 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,270 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,271 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,271 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,271 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,272 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,272 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,272 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,273 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,273 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,273 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,273 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,273 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,273 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,273 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,273 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,274 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,274 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,274 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,274 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,274 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,274 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,274 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,274 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,274 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,275 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,275 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,275 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,275 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,275 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,276 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,276 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,276 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,276 WARN L278 uchiComplementFKVNwa]: big8 [2021-08-27 13:55:14,306 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 660 states and 1049 transitions. cyclomatic complexity: 434 Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 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 14845 states and 25888 transitions. Complement of second has 212 states 24 powerset states188 rank states. The highest rank that occured is 7 [2021-08-27 13:55:14,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 1 stem states 11 non-accepting loop states 1 accepting loop states [2021-08-27 13:55:14,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 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) [2021-08-27 13:55:14,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 59 transitions. [2021-08-27 13:55:14,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 59 transitions. Stem has 5 letters. Loop has 22 letters. [2021-08-27 13:55:14,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:14,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 59 transitions. Stem has 27 letters. Loop has 22 letters. [2021-08-27 13:55:14,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:14,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 59 transitions. Stem has 5 letters. Loop has 44 letters. [2021-08-27 13:55:14,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:14,312 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14845 states and 25888 transitions. [2021-08-27 13:55:14,378 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 51 [2021-08-27 13:55:14,395 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14845 states to 3699 states and 5622 transitions. [2021-08-27 13:55:14,395 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-08-27 13:55:14,396 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-08-27 13:55:14,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3699 states and 5622 transitions. [2021-08-27 13:55:14,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 13:55:14,396 INFO L681 BuchiCegarLoop]: Abstraction has 3699 states and 5622 transitions. [2021-08-27 13:55:14,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3699 states and 5622 transitions. [2021-08-27 13:55:14,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3699 to 1604. [2021-08-27 13:55:14,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1604 states, 1604 states have (on average 1.7880299251870324) internal successors, (2868), 1603 states have internal predecessors, (2868), 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) [2021-08-27 13:55:14,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2868 transitions. [2021-08-27 13:55:14,426 INFO L704 BuchiCegarLoop]: Abstraction has 1604 states and 2868 transitions. [2021-08-27 13:55:14,426 INFO L587 BuchiCegarLoop]: Abstraction has 1604 states and 2868 transitions. [2021-08-27 13:55:14,426 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-08-27 13:55:14,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1604 states and 2868 transitions. [2021-08-27 13:55:14,430 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 29 [2021-08-27 13:55:14,430 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:55:14,430 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:55:14,431 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2021-08-27 13:55:14,431 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [13, 7, 6] [2021-08-27 13:55:14,431 INFO L791 eck$LassoCheckResult]: Stem: 33134#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~c~0, main_~n~0;havoc main_~c~0;havoc main_~n~0;main_~c~0 := 1;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; 33152#L15-2 assume !!(main_~c~0 > 0); 33390#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 33178#L15-2 assume !!(main_~c~0 > 0); 33175#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 33171#L15-2 [2021-08-27 13:55:14,432 INFO L793 eck$LassoCheckResult]: Loop: 33171#L15-2 assume !!(main_~c~0 > 0); 33172#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 34732#L15-2 assume !!(main_~c~0 > 0); 34533#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 34530#L15-2 assume !!(main_~c~0 > 0); 34528#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 34527#L15-2 assume !!(main_~c~0 > 0); 34525#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 34521#L15-2 assume !!(main_~c~0 > 0); 34520#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 34519#L15-2 assume !!(main_~c~0 > 0); 34518#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 34517#L15-2 assume !!(main_~c~0 > 0); 34516#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 33587#L15-2 assume !!(main_~c~0 > 0); 34515#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 34514#L15-2 assume !!(main_~c~0 > 0); 34513#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 33571#L15-2 assume !!(main_~c~0 > 0); 34512#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 34510#L15-2 assume !!(main_~c~0 > 0); 33180#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 33182#L15-2 assume !!(main_~c~0 > 0); 33181#L15 assume main_~n~0 > 100;main_~n~0 := main_~n~0 - 10;main_~c~0 := main_~c~0 - 1; 33179#L15-2 assume !!(main_~c~0 > 0); 33177#L15 assume !(main_~n~0 > 100);main_~n~0 := 11 + main_~n~0;main_~c~0 := 1 + main_~c~0; 33171#L15-2 [2021-08-27 13:55:14,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:14,433 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 9 times [2021-08-27 13:55:14,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:14,433 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485094302] [2021-08-27 13:55:14,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:14,433 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:14,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:14,437 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:14,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:14,445 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:14,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:14,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1767338060, now seen corresponding path program 9 times [2021-08-27 13:55:14,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:14,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14179431] [2021-08-27 13:55:14,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:14,447 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:14,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:14,454 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:14,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:14,468 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:14,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:14,469 INFO L82 PathProgramCache]: Analyzing trace with hash 818406365, now seen corresponding path program 12 times [2021-08-27 13:55:14,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:14,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809015631] [2021-08-27 13:55:14,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:14,469 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:14,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:14,477 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:14,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:14,486 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:14,682 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:14,682 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:14,682 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:14,682 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:14,682 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 13:55:14,682 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:14,682 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:14,682 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:14,682 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration14_Loop [2021-08-27 13:55:14,682 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:14,682 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:14,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:14,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:14,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:14,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:14,725 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:14,726 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 13:55:14,726 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:14,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:14,731 INFO L229 MonitoredProcess]: Starting monitored process 82 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) [2021-08-27 13:55:14,761 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:55:14,761 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:14,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2021-08-27 13:55:14,787 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2021-08-27 13:55:14,787 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:14,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:14,787 INFO L229 MonitoredProcess]: Starting monitored process 83 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) [2021-08-27 13:55:14,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2021-08-27 13:55:14,789 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 13:55:14,789 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:55:14,814 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 13:55:14,816 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Ended with exit code 0 [2021-08-27 13:55:14,817 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:14,817 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:14,817 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:14,817 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:14,817 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 13:55:14,817 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:14,817 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:14,817 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:14,817 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration14_Loop [2021-08-27 13:55:14,817 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:14,817 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:14,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:14,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:14,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:14,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:14,864 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:14,864 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 13:55:14,865 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:14,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:14,865 INFO L229 MonitoredProcess]: Starting monitored process 84 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) [2021-08-27 13:55:14,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2021-08-27 13:55:14,867 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 [2021-08-27 13:55:14,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:14,873 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:14,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:14,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:14,875 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:14,875 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:14,877 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:14,891 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Ended with exit code 0 [2021-08-27 13:55:14,892 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:14,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:14,892 INFO L229 MonitoredProcess]: Starting monitored process 85 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) [2021-08-27 13:55:14,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-08-27 13:55:14,894 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 [2021-08-27 13:55:14,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:14,900 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:55:14,900 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:14,900 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:14,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:14,901 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:55:14,901 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:55:14,902 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 13:55:14,903 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-08-27 13:55:14,903 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 13:55:14,903 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:14,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:14,904 INFO L229 MonitoredProcess]: Starting monitored process 86 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) [2021-08-27 13:55:14,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2021-08-27 13:55:14,906 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 13:55:14,906 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 13:55:14,906 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 13:55:14,906 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0) = 1*ULTIMATE.start_main_~c~0 Supporting invariants [] [2021-08-27 13:55:14,921 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Ended with exit code 0 [2021-08-27 13:55:14,921 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 13:55:14,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:14,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:14,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:14,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:14,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-27 13:55:14,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:15,119 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 81 proven. 35 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-08-27 13:55:15,120 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2021-08-27 13:55:15,120 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1604 states and 2868 transitions. cyclomatic complexity: 1357 Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2021-08-27 13:55:15,128 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1604 states and 2868 transitions. cyclomatic complexity: 1357. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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 1668 states and 3224 transitions. Complement of second has 5 states. [2021-08-27 13:55:15,128 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 [2021-08-27 13:55:15,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2021-08-27 13:55:15,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-08-27 13:55:15,129 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 5 letters. Loop has 26 letters. [2021-08-27 13:55:15,129 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:15,129 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:15,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:15,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:15,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:15,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-27 13:55:15,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:15,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:15,317 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 81 proven. 35 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-08-27 13:55:15,317 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 6 loop predicates [2021-08-27 13:55:15,318 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1604 states and 2868 transitions. cyclomatic complexity: 1357 Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2021-08-27 13:55:15,330 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1604 states and 2868 transitions. cyclomatic complexity: 1357. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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 1668 states and 3224 transitions. Complement of second has 5 states. [2021-08-27 13:55:15,330 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 [2021-08-27 13:55:15,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2021-08-27 13:55:15,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-08-27 13:55:15,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 5 letters. Loop has 26 letters. [2021-08-27 13:55:15,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:15,331 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:15,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:15,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:15,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:15,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:15,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-27 13:55:15,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:15,522 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 81 proven. 35 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-08-27 13:55:15,522 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2021-08-27 13:55:15,522 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1604 states and 2868 transitions. cyclomatic complexity: 1357 Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2021-08-27 13:55:15,541 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1604 states and 2868 transitions. cyclomatic complexity: 1357. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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 2364 states and 3787 transitions. Complement of second has 7 states. [2021-08-27 13:55:15,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-27 13:55:15,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2021-08-27 13:55:15,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2021-08-27 13:55:15,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 5 letters. Loop has 26 letters. [2021-08-27 13:55:15,543 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:15,543 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:15,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:15,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:15,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:15,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:15,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:15,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-27 13:55:15,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:15,713 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 81 proven. 35 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-08-27 13:55:15,713 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 6 loop predicates [2021-08-27 13:55:15,713 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1604 states and 2868 transitions. cyclomatic complexity: 1357 Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2021-08-27 13:55:15,745 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1604 states and 2868 transitions. cyclomatic complexity: 1357. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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 3111 states and 5286 transitions. Complement of second has 12 states. [2021-08-27 13:55:15,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2021-08-27 13:55:15,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2021-08-27 13:55:15,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 13 transitions. [2021-08-27 13:55:15,746 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 5 letters. Loop has 26 letters. [2021-08-27 13:55:15,746 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:15,746 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 31 letters. Loop has 26 letters. [2021-08-27 13:55:15,746 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:15,746 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 5 letters. Loop has 52 letters. [2021-08-27 13:55:15,747 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:15,747 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3111 states and 5286 transitions. [2021-08-27 13:55:15,756 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 13:55:15,756 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3111 states to 0 states and 0 transitions. [2021-08-27 13:55:15,756 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 13:55:15,756 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 13:55:15,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 13:55:15,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 13:55:15,757 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 13:55:15,757 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 13:55:15,757 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 13:55:15,757 INFO L425 BuchiCegarLoop]: ======== Iteration 15============ [2021-08-27 13:55:15,757 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-27 13:55:15,757 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 13:55:15,757 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-27 13:55:15,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 01:55:15 BoogieIcfgContainer [2021-08-27 13:55:15,763 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 13:55:15,763 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 13:55:15,763 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 13:55:15,763 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 13:55:15,764 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 01:55:01" (3/4) ... [2021-08-27 13:55:15,765 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 13:55:15,766 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 13:55:15,767 INFO L168 Benchmark]: Toolchain (without parser) took 14844.80 ms. Allocated memory was 71.3 MB in the beginning and 220.2 MB in the end (delta: 148.9 MB). Free memory was 54.1 MB in the beginning and 65.5 MB in the end (delta: -11.4 MB). Peak memory consumption was 135.8 MB. Max. memory is 16.1 GB. [2021-08-27 13:55:15,767 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 71.3 MB. Free memory is still 53.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 13:55:15,767 INFO L168 Benchmark]: CACSL2BoogieTranslator took 130.92 ms. Allocated memory is still 71.3 MB. Free memory was 53.9 MB in the beginning and 45.5 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-27 13:55:15,768 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.84 ms. Allocated memory is still 71.3 MB. Free memory was 45.5 MB in the beginning and 55.2 MB in the end (delta: -9.7 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. [2021-08-27 13:55:15,768 INFO L168 Benchmark]: Boogie Preprocessor took 27.43 ms. Allocated memory is still 71.3 MB. Free memory was 55.2 MB in the beginning and 54.3 MB in the end (delta: 919.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 13:55:15,768 INFO L168 Benchmark]: RCFGBuilder took 209.41 ms. Allocated memory is still 71.3 MB. Free memory was 54.0 MB in the beginning and 45.4 MB in the end (delta: 8.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-08-27 13:55:15,768 INFO L168 Benchmark]: BuchiAutomizer took 14442.05 ms. Allocated memory was 71.3 MB in the beginning and 220.2 MB in the end (delta: 148.9 MB). Free memory was 45.4 MB in the beginning and 65.5 MB in the end (delta: -20.1 MB). Peak memory consumption was 130.9 MB. Max. memory is 16.1 GB. [2021-08-27 13:55:15,768 INFO L168 Benchmark]: Witness Printer took 2.49 ms. Allocated memory is still 220.2 MB. Free memory is still 65.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 13:55:15,770 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 71.3 MB. Free memory is still 53.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 130.92 ms. Allocated memory is still 71.3 MB. Free memory was 53.9 MB in the beginning and 45.5 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 25.84 ms. Allocated memory is still 71.3 MB. Free memory was 45.5 MB in the beginning and 55.2 MB in the end (delta: -9.7 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.43 ms. Allocated memory is still 71.3 MB. Free memory was 55.2 MB in the beginning and 54.3 MB in the end (delta: 919.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 209.41 ms. Allocated memory is still 71.3 MB. Free memory was 54.0 MB in the beginning and 45.4 MB in the end (delta: 8.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 14442.05 ms. Allocated memory was 71.3 MB in the beginning and 220.2 MB in the end (delta: 148.9 MB). Free memory was 45.4 MB in the beginning and 65.5 MB in the end (delta: -20.1 MB). Peak memory consumption was 130.9 MB. Max. memory is 16.1 GB. * Witness Printer took 2.49 ms. Allocated memory is still 220.2 MB. Free memory is still 65.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 17 terminating modules (4 trivial, 4 deterministic, 9 nondeterministic). One deterministic module has affine ranking function n and consists of 4 locations. One deterministic module has affine ranking function c and consists of 3 locations. One deterministic module has affine ranking function 211 + -2 * n and consists of 3 locations. One deterministic module has affine ranking function n and consists of 5 locations. One nondeterministic module has affine ranking function c and consists of 3 locations. One nondeterministic module has affine ranking function 211 + -2 * n and consists of 3 locations. One nondeterministic module has affine ranking function 201 + -2 * n and consists of 5 locations. One nondeterministic module has affine ranking function n and consists of 5 locations. One nondeterministic module has affine ranking function n and consists of 7 locations. One nondeterministic module has affine ranking function n and consists of 9 locations. One nondeterministic module has affine ranking function n and consists of 11 locations. One nondeterministic module has affine ranking function n and consists of 13 locations. One nondeterministic module has affine ranking function c and consists of 6 locations. 4 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 14.3s and 15 iterations. TraceHistogramMax:13. Analysis of lassos took 7.2s. Construction of modules took 0.2s. Büchi inclusion checks took 6.4s. Highest rank in rank-based complementation 7. Minimization of det autom 1. Minimization of nondet autom 16. Automata minimization 93.8ms AutomataMinimizationTime, 16 MinimizatonAttempts, 3169 StatesRemovedByMinimization, 14 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 1604 states and ocurred in iteration 13. Nontrivial modules had stage [4, 0, 3, 1, 5]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 254/414 HoareTripleCheckerStatistics: 213 SDtfs, 239 SDslu, 127 SDs, 0 SdLazy, 380 SolverSat, 137 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 294.3ms Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT10 conc0 concLT1 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax158 hnf96 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq151 hnf94 smp97 dnf100 smp100 tf112 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 38ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 13 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-08-27 13:55:15,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:16,000 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2021-08-27 13:55:16,203 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...