./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/LogAG.c --full-output -ea --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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-restricted-15/LogAG.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 81a46fe8790e1f522cb67a9c253c8a7e6828f982 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-29 01:30:01,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:30:01,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:30:01,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:30:01,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:30:01,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:30:01,118 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:30:01,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:30:01,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:30:01,123 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:30:01,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:30:01,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:30:01,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:30:01,126 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:30:01,127 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:30:01,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:30:01,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:30:01,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:30:01,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:30:01,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:30:01,136 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:30:01,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:30:01,139 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:30:01,140 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:30:01,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:30:01,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:30:01,146 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:30:01,147 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:30:01,147 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:30:01,148 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:30:01,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:30:01,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:30:01,150 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:30:01,151 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:30:01,152 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:30:01,152 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:30:01,153 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:30:01,153 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:30:01,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:30:01,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:30:01,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:30:01,156 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-07-29 01:30:01,173 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:30:01,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:30:01,175 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:30:01,175 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:30:01,175 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:30:01,176 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 01:30:01,176 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 01:30:01,176 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 01:30:01,176 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 01:30:01,176 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 01:30:01,177 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 01:30:01,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:30:01,177 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:30:01,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:30:01,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:30:01,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 01:30:01,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 01:30:01,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 01:30:01,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:30:01,179 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 01:30:01,179 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:30:01,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 01:30:01,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:30:01,179 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:30:01,180 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 01:30:01,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:30:01,180 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:30:01,180 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:30:01,181 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 01:30:01,181 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 01:30:01,182 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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 -> 81a46fe8790e1f522cb67a9c253c8a7e6828f982 [2020-07-29 01:30:01,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:30:01,513 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:30:01,516 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:30:01,518 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:30:01,518 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:30:01,519 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/LogAG.c [2020-07-29 01:30:01,601 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3ffed9e7/787fef4e776147689e61fbe823b5e3c4/FLAG40eff594a [2020-07-29 01:30:02,096 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:30:02,097 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/LogAG.c [2020-07-29 01:30:02,104 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3ffed9e7/787fef4e776147689e61fbe823b5e3c4/FLAG40eff594a [2020-07-29 01:30:02,487 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3ffed9e7/787fef4e776147689e61fbe823b5e3c4 [2020-07-29 01:30:02,492 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:30:02,495 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:30:02,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:30:02,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:30:02,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:30:02,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:30:02" (1/1) ... [2020-07-29 01:30:02,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@799be313 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:02, skipping insertion in model container [2020-07-29 01:30:02,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:30:02" (1/1) ... [2020-07-29 01:30:02,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:30:02,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:30:02,732 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:30:02,736 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:30:02,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:30:02,767 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:30:02,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:02 WrapperNode [2020-07-29 01:30:02,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:30:02,769 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:30:02,769 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:30:02,769 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:30:02,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:02" (1/1) ... [2020-07-29 01:30:02,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:02" (1/1) ... [2020-07-29 01:30:02,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:30:02,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:30:02,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:30:02,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:30:02,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:02" (1/1) ... [2020-07-29 01:30:02,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:02" (1/1) ... [2020-07-29 01:30:02,864 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:02" (1/1) ... [2020-07-29 01:30:02,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:02" (1/1) ... [2020-07-29 01:30:02,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:02" (1/1) ... [2020-07-29 01:30:02,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:02" (1/1) ... [2020-07-29 01:30:02,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:02" (1/1) ... [2020-07-29 01:30:02,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:30:02,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:30:02,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:30:02,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:30:02,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:02,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:30:02,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:30:03,169 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:30:03,169 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-29 01:30:03,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:30:03 BoogieIcfgContainer [2020-07-29 01:30:03,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:30:03,182 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 01:30:03,182 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 01:30:03,194 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 01:30:03,195 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:30:03,195 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 01:30:02" (1/3) ... [2020-07-29 01:30:03,197 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50fe2a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:30:03, skipping insertion in model container [2020-07-29 01:30:03,197 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:30:03,197 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:02" (2/3) ... [2020-07-29 01:30:03,198 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50fe2a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:30:03, skipping insertion in model container [2020-07-29 01:30:03,198 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:30:03,201 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:30:03" (3/3) ... [2020-07-29 01:30:03,203 INFO L371 chiAutomizerObserver]: Analyzing ICFG LogAG.c [2020-07-29 01:30:03,280 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 01:30:03,280 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 01:30:03,280 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 01:30:03,280 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:30:03,280 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:30:03,281 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 01:30:03,281 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:30:03,281 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 01:30:03,292 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-07-29 01:30:03,314 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:30:03,314 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:03,314 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:03,319 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 01:30:03,319 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-29 01:30:03,320 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 01:30:03,320 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-07-29 01:30:03,322 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:30:03,322 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:03,322 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:03,323 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 01:30:03,323 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-29 01:30:03,329 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 6#L13-2true [2020-07-29 01:30:03,330 INFO L796 eck$LassoCheckResult]: Loop: 6#L13-2true assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; 3#L17-2true assume !(main_~xtmp~0 > 1); 10#L17-3true main_~x~0 := 1 + main_~xtmp~0;main_~res~0 := 1 + main_~res~0; 6#L13-2true [2020-07-29 01:30:03,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:03,335 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-07-29 01:30:03,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:03,344 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686292870] [2020-07-29 01:30:03,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:03,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:03,420 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:03,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:03,425 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:03,439 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:30:03,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:03,441 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2020-07-29 01:30:03,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:03,442 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102336170] [2020-07-29 01:30:03,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:03,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:03,456 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:03,463 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:03,465 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:30:03,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:03,467 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2020-07-29 01:30:03,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:03,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487458871] [2020-07-29 01:30:03,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:03,481 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:03,489 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:03,492 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:30:03,597 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:30:03,598 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:30:03,598 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:30:03,598 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:30:03,598 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-29 01:30:03,598 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:03,599 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:30:03,599 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:30:03,599 INFO L133 ssoRankerPreferences]: Filename of dumped script: LogAG.c_Iteration1_Loop [2020-07-29 01:30:03,599 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:30:03,599 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:30:03,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:03,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:03,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:03,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:03,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:03,895 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:30:03,896 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:30:03,908 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:30:03,908 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:03,920 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:30:03,920 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: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:03,975 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:30:03,976 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 01:30:03,983 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:30:03,983 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: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:30:04,027 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:30:04,028 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:30:04,088 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 01:30:04,089 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:04,609 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-29 01:30:04,611 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:30:04,612 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:30:04,612 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:30:04,612 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:30:04,612 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 01:30:04,612 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:04,612 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:30:04,612 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:30:04,613 INFO L133 ssoRankerPreferences]: Filename of dumped script: LogAG.c_Iteration1_Loop [2020-07-29 01:30:04,613 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:30:04,613 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:30:04,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:04,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:04,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:04,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:04,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:04,837 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:30:04,842 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:30:04,856 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 01:30:04,859 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:30:04,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:30:04,859 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:30:04,860 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:30:04,865 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:30:04,865 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:04,872 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:04,911 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 01:30:04,913 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:30:04,913 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:30:04,914 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:30:04,914 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:30:04,914 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:30:04,915 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:30:04,916 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:30:04,918 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:30:04,963 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 01:30:04,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:30:04,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:30:04,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:30:04,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:30:04,969 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:30:04,969 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:04,975 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:30:05,019 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 01:30:05,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:30:05,021 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:30:05,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:30:05,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:30:05,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:30:05,023 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:30:05,023 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:05,026 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:30:05,066 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 01:30:05,069 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:30:05,069 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:30:05,069 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:30:05,069 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:30:05,070 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:30:05,072 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:30:05,072 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:05,077 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 01:30:05,082 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-29 01:30:05,082 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:30:05,091 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-29 01:30:05,091 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-29 01:30:05,092 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 01:30:05,092 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:05,134 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-29 01:30:05,140 INFO L393 LassoCheck]: Loop: "assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0;" "assume !(main_~xtmp~0 > 1);" "main_~x~0 := 1 + main_~xtmp~0;main_~res~0 := 1 + main_~res~0;" [2020-07-29 01:30:05,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:05,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:05,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:05,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-29 01:30:05,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:05,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:30:05,206 INFO L280 TraceCheckUtils]: 0: Hoare triple {18#unseeded} havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; {18#unseeded} is VALID [2020-07-29 01:30:05,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:05,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-29 01:30:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:05,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:30:05,322 INFO L280 TraceCheckUtils]: 0: Hoare triple {21#(>= oldRank0 ULTIMATE.start_main_~x~0)} assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; {36#(and (<= (+ ULTIMATE.start_main_~xtmp~0 2) oldRank0) (<= 2 oldRank0))} is VALID [2020-07-29 01:30:05,323 INFO L280 TraceCheckUtils]: 1: Hoare triple {36#(and (<= (+ ULTIMATE.start_main_~xtmp~0 2) oldRank0) (<= 2 oldRank0))} assume !(main_~xtmp~0 > 1); {36#(and (<= (+ ULTIMATE.start_main_~xtmp~0 2) oldRank0) (<= 2 oldRank0))} is VALID [2020-07-29 01:30:05,325 INFO L280 TraceCheckUtils]: 2: Hoare triple {36#(and (<= (+ ULTIMATE.start_main_~xtmp~0 2) oldRank0) (<= 2 oldRank0))} main_~x~0 := 1 + main_~xtmp~0;main_~res~0 := 1 + main_~res~0; {31#(or (and (> oldRank0 ULTIMATE.start_main_~x~0) (>= oldRank0 0)) unseeded)} is VALID [2020-07-29 01:30:05,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:30:05,340 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 01:30:05,352 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:30:05,355 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:30:05,359 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,365 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 [2020-07-29 01:30:05,367 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2020-07-29 01:30:05,479 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 35 transitions. Complement of second has 7 states. [2020-07-29 01:30:05,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-29 01:30:05,480 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:30:05,480 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-07-29 01:30:05,482 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:30:05,483 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:05,483 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:05,483 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-29 01:30:05,486 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2020-07-29 01:30:05,487 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:05,487 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:05,488 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 35 transitions. [2020-07-29 01:30:05,489 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:30:05,489 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:05,490 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:05,492 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 8 states. [2020-07-29 01:30:05,493 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:30:05,494 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 3 examples of accepted words. [2020-07-29 01:30:05,494 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 3 states. [2020-07-29 01:30:05,497 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2020-07-29 01:30:05,497 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 01:30:05,498 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 23 states and 35 transitions. cyclomatic complexity: 15 [2020-07-29 01:30:05,498 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 01:30:05,498 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:30:05,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:30:05,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 35 transitions. cyclomatic complexity: 15 Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:30:05,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:30:05,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,501 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:30:05,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,501 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 35 transitions. cyclomatic complexity: 15 Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:30:05,502 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,502 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:30:05,502 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:30:05,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 35 transitions. cyclomatic complexity: 15 Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:30:05,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,504 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 23 letters. Loop has 23 letters. [2020-07-29 01:30:05,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,504 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 23 letters. Loop has 23 letters. [2020-07-29 01:30:05,505 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,505 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 35 transitions. cyclomatic complexity: 15 Stem has 23 letters. Loop has 23 letters. [2020-07-29 01:30:05,505 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,505 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 8 letters. Loop has 8 letters. [2020-07-29 01:30:05,506 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,506 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 8 letters. Loop has 8 letters. [2020-07-29 01:30:05,506 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,507 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 35 transitions. cyclomatic complexity: 15 Stem has 8 letters. Loop has 8 letters. [2020-07-29 01:30:05,507 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,507 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 5 letters. Loop has 5 letters. [2020-07-29 01:30:05,507 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,508 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 5 letters. Loop has 5 letters. [2020-07-29 01:30:05,508 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,508 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 35 transitions. cyclomatic complexity: 15 Stem has 5 letters. Loop has 5 letters. [2020-07-29 01:30:05,508 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:30:05,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:30:05,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 35 transitions. cyclomatic complexity: 15 Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:30:05,510 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:30:05,510 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,511 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:30:05,511 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,511 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 35 transitions. cyclomatic complexity: 15 Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:30:05,512 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:30:05,512 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:30:05,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 35 transitions. cyclomatic complexity: 15 Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:30:05,514 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,514 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:30:05,514 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,514 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:30:05,515 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,515 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 35 transitions. cyclomatic complexity: 15 Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:30:05,515 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,515 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:30:05,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,516 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:30:05,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,516 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 35 transitions. cyclomatic complexity: 15 Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:30:05,517 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,517 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:30:05,517 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,517 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:30:05,518 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,518 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 35 transitions. cyclomatic complexity: 15 Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:30:05,518 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,519 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:30:05,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:30:05,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2020-07-29 01:30:05,522 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:30:05,523 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,523 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2020-07-29 01:30:05,523 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,524 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2020-07-29 01:30:05,524 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:05,525 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. cyclomatic complexity: 15 [2020-07-29 01:30:05,529 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:30:05,533 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2020-07-29 01:30:05,535 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-29 01:30:05,535 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-29 01:30:05,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-07-29 01:30:05,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-29 01:30:05,537 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-29 01:30:05,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-07-29 01:30:05,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2020-07-29 01:30:05,569 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 01:30:05,570 INFO L82 GeneralOperation]: Start isEquivalent. First operand 7 states and 10 transitions. Second operand 6 states. [2020-07-29 01:30:05,570 INFO L74 IsIncluded]: Start isIncluded. First operand 7 states and 10 transitions. Second operand 6 states. [2020-07-29 01:30:05,573 INFO L87 Difference]: Start difference. First operand 7 states and 10 transitions. Second operand 6 states. [2020-07-29 01:30:05,577 INFO L149 Difference]: Subtrahend was not deterministic. Recomputing result with determinization. [2020-07-29 01:30:05,579 INFO L93 Difference]: Finished difference Result 7 states and 10 transitions. [2020-07-29 01:30:05,580 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 10 transitions. [2020-07-29 01:30:05,581 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:30:05,581 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:30:05,582 INFO L74 IsIncluded]: Start isIncluded. First operand 6 states. Second operand 7 states and 10 transitions. [2020-07-29 01:30:05,582 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 7 states and 10 transitions. [2020-07-29 01:30:05,582 INFO L149 Difference]: Subtrahend was not deterministic. Recomputing result with determinization. [2020-07-29 01:30:05,584 INFO L93 Difference]: Finished difference Result 8 states and 12 transitions. [2020-07-29 01:30:05,584 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 12 transitions. [2020-07-29 01:30:05,584 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:30:05,585 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:30:05,585 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 01:30:05,585 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 01:30:05,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-29 01:30:05,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2020-07-29 01:30:05,588 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-07-29 01:30:05,588 INFO L591 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-07-29 01:30:05,588 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 01:30:05,588 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2020-07-29 01:30:05,589 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:30:05,589 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:05,589 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:05,590 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-29 01:30:05,590 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-29 01:30:05,590 INFO L794 eck$LassoCheckResult]: Stem: 80#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 81#L13-2 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; 77#L17-2 [2020-07-29 01:30:05,591 INFO L796 eck$LassoCheckResult]: Loop: 77#L17-2 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := 1 + main_~restmp~0; 77#L17-2 [2020-07-29 01:30:05,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:05,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-07-29 01:30:05,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:05,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143801677] [2020-07-29 01:30:05,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:05,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:05,598 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:05,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:05,606 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:05,607 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:30:05,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:05,608 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2020-07-29 01:30:05,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:05,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869813275] [2020-07-29 01:30:05,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:05,613 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:05,617 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:05,618 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:30:05,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:05,619 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2020-07-29 01:30:05,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:05,620 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749870436] [2020-07-29 01:30:05,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:05,626 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:05,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:05,631 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:05,633 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:30:05,661 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:30:05,661 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:30:05,662 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:30:05,662 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:30:05,662 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-29 01:30:05,662 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:05,662 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:30:05,662 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:30:05,663 INFO L133 ssoRankerPreferences]: Filename of dumped script: LogAG.c_Iteration2_Loop [2020-07-29 01:30:05,663 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:30:05,663 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:30:05,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:05,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:05,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:05,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:05,831 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:30:05,832 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:05,836 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:30:05,836 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 01:30:05,840 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:30:05,841 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: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:30:05,890 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:30:05,890 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:30:05,943 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 01:30:05,943 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:05,967 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:30:05,968 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~restmp~0=0} Honda state: {ULTIMATE.start_main_~restmp~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~restmp~0=5}, {ULTIMATE.start_main_~restmp~0=-2}, {ULTIMATE.start_main_~restmp~0=-2}] Lambdas: [1, 0, 1] Nus: [0, 1] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:30:06,015 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:30:06,016 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:06,021 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:30:06,021 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:30:06,068 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:30:06,068 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:30:06,118 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 01:30:06,118 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:06,157 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-29 01:30:06,159 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:30:06,159 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:30:06,159 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:30:06,159 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:30:06,159 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 01:30:06,159 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:06,159 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:30:06,160 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:30:06,160 INFO L133 ssoRankerPreferences]: Filename of dumped script: LogAG.c_Iteration2_Loop [2020-07-29 01:30:06,160 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:30:06,160 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:30:06,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:06,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:06,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:06,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:06,304 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:30:06,304 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:30:06,308 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:06,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:30:06,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:30:06,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:30:06,311 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:30:06,315 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:30:06,315 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:30:06,320 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:06,359 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 01:30:06,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:30:06,361 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:30:06,362 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:30:06,362 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:30:06,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:30:06,363 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:30:06,363 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:30:06,365 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:06,387 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 01:30:06,390 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:30:06,390 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:30:06,390 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:30:06,390 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:30:06,400 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:30:06,401 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:30:06,406 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:30:06,434 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:06,435 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:30:06,436 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:30:06,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:30:06,436 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:30:06,436 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:30:06,437 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:30:06,437 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:30:06,440 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 01:30:06,442 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-29 01:30:06,442 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:06,461 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-29 01:30:06,462 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-29 01:30:06,462 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 01:30:06,462 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0) = 1*ULTIMATE.start_main_~xtmp~0 Supporting invariants [] [2020-07-29 01:30:06,507 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-29 01:30:06,510 INFO L393 LassoCheck]: Loop: "assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := 1 + main_~restmp~0;" [2020-07-29 01:30:06,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:06,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:06,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:06,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-29 01:30:06,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:06,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:30:06,542 INFO L280 TraceCheckUtils]: 0: Hoare triple {126#unseeded} havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; {126#unseeded} is VALID [2020-07-29 01:30:06,543 INFO L280 TraceCheckUtils]: 1: Hoare triple {126#unseeded} assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; {126#unseeded} is VALID [2020-07-29 01:30:06,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:06,552 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-29 01:30:06,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:06,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:30:06,561 INFO L280 TraceCheckUtils]: 0: Hoare triple {129#(>= oldRank0 ULTIMATE.start_main_~xtmp~0)} assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := 1 + main_~restmp~0; {139#(or unseeded (and (> oldRank0 ULTIMATE.start_main_~xtmp~0) (>= oldRank0 0)))} is VALID [2020-07-29 01:30:06,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:30:06,562 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-29 01:30:06,565 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 3 edges. 3 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:30:06,565 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:30:06,565 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,566 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 [2020-07-29 01:30:06,566 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand 2 states. [2020-07-29 01:30:06,593 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 13 states and 18 transitions. Complement of second has 5 states. [2020-07-29 01:30:06,593 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 [2020-07-29 01:30:06,593 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:30:06,593 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. cyclomatic complexity: 5 [2020-07-29 01:30:06,593 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:06,593 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:06,593 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-29 01:30:06,594 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:30:06,594 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:06,594 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:06,594 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2020-07-29 01:30:06,595 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:30:06,595 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:06,595 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:06,596 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 6 states and 9 transitions. cyclomatic complexity: 5 [2020-07-29 01:30:06,596 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 01:30:06,596 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 2 states. [2020-07-29 01:30:06,597 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:30:06,597 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 01:30:06,597 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 13 states and 18 transitions. cyclomatic complexity: 9 [2020-07-29 01:30:06,597 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 01:30:06,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 9 transitions. cyclomatic complexity: 5 Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:30:06,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,598 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:30:06,598 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,598 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 18 transitions. cyclomatic complexity: 9 Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:30:06,598 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,598 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 9 transitions. cyclomatic complexity: 5 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:06,598 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:06,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 18 transitions. cyclomatic complexity: 9 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:06,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 9 transitions. cyclomatic complexity: 5 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:06,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:06,600 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,600 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 18 transitions. cyclomatic complexity: 9 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:06,600 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,600 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 9 transitions. cyclomatic complexity: 5 Stem has 13 letters. Loop has 13 letters. [2020-07-29 01:30:06,600 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,600 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 13 letters. Loop has 13 letters. [2020-07-29 01:30:06,600 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,600 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 18 transitions. cyclomatic complexity: 9 Stem has 13 letters. Loop has 13 letters. [2020-07-29 01:30:06,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 9 transitions. cyclomatic complexity: 5 Stem has 6 letters. Loop has 6 letters. [2020-07-29 01:30:06,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 6 letters. Loop has 6 letters. [2020-07-29 01:30:06,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 18 transitions. cyclomatic complexity: 9 Stem has 6 letters. Loop has 6 letters. [2020-07-29 01:30:06,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 9 transitions. cyclomatic complexity: 5 Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:30:06,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:30:06,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 18 transitions. cyclomatic complexity: 9 Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:30:06,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 9 transitions. cyclomatic complexity: 5 Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:30:06,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:30:06,603 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,603 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 18 transitions. cyclomatic complexity: 9 Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:30:06,603 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,603 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 9 transitions. cyclomatic complexity: 5 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:06,603 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,603 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:06,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 18 transitions. cyclomatic complexity: 9 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:06,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 9 transitions. cyclomatic complexity: 5 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:06,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:06,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 18 transitions. cyclomatic complexity: 9 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:06,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,605 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:30:06,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-29 01:30:06,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-07-29 01:30:06,606 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:30:06,606 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,606 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:30:06,607 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,607 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2020-07-29 01:30:06,607 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:06,607 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. cyclomatic complexity: 9 [2020-07-29 01:30:06,608 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:30:06,609 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 9 states and 13 transitions. [2020-07-29 01:30:06,609 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-29 01:30:06,609 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2020-07-29 01:30:06,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2020-07-29 01:30:06,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-29 01:30:06,610 INFO L688 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2020-07-29 01:30:06,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2020-07-29 01:30:06,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 6. [2020-07-29 01:30:06,611 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 01:30:06,611 INFO L82 GeneralOperation]: Start isEquivalent. First operand 9 states and 13 transitions. Second operand 6 states. [2020-07-29 01:30:06,611 INFO L74 IsIncluded]: Start isIncluded. First operand 9 states and 13 transitions. Second operand 6 states. [2020-07-29 01:30:06,611 INFO L87 Difference]: Start difference. First operand 9 states and 13 transitions. Second operand 6 states. [2020-07-29 01:30:06,612 INFO L149 Difference]: Subtrahend was not deterministic. Recomputing result with determinization. [2020-07-29 01:30:06,613 INFO L93 Difference]: Finished difference Result 9 states and 13 transitions. [2020-07-29 01:30:06,613 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 13 transitions. [2020-07-29 01:30:06,613 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:30:06,613 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:30:06,613 INFO L74 IsIncluded]: Start isIncluded. First operand 6 states. Second operand 9 states and 13 transitions. [2020-07-29 01:30:06,613 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 9 states and 13 transitions. [2020-07-29 01:30:06,614 INFO L149 Difference]: Subtrahend was not deterministic. Recomputing result with determinization. [2020-07-29 01:30:06,615 INFO L93 Difference]: Finished difference Result 9 states and 13 transitions. [2020-07-29 01:30:06,615 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 13 transitions. [2020-07-29 01:30:06,616 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:30:06,616 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:30:06,616 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 01:30:06,616 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 01:30:06,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-29 01:30:06,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2020-07-29 01:30:06,617 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-07-29 01:30:06,617 INFO L591 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-07-29 01:30:06,617 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-29 01:30:06,617 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2020-07-29 01:30:06,617 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:30:06,617 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:06,618 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:06,618 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2020-07-29 01:30:06,618 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-29 01:30:06,618 INFO L794 eck$LassoCheckResult]: Stem: 170#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 171#L13-2 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; 168#L17-2 assume !(main_~xtmp~0 > 1); 169#L17-3 main_~x~0 := 1 + main_~xtmp~0;main_~res~0 := 1 + main_~res~0; 172#L13-2 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; 167#L17-2 [2020-07-29 01:30:06,618 INFO L796 eck$LassoCheckResult]: Loop: 167#L17-2 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := 1 + main_~restmp~0; 167#L17-2 [2020-07-29 01:30:06,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:06,619 INFO L82 PathProgramCache]: Analyzing trace with hash 29867642, now seen corresponding path program 2 times [2020-07-29 01:30:06,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:06,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060769134] [2020-07-29 01:30:06,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:06,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:06,626 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:06,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:06,631 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:06,633 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:30:06,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:06,634 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2020-07-29 01:30:06,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:06,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458333659] [2020-07-29 01:30:06,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:06,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:06,638 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:06,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:06,640 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:06,641 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:30:06,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:06,642 INFO L82 PathProgramCache]: Analyzing trace with hash 925896921, now seen corresponding path program 1 times [2020-07-29 01:30:06,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:06,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553545331] [2020-07-29 01:30:06,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:06,719 INFO L280 TraceCheckUtils]: 0: Hoare triple {226#true} havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; {226#true} is VALID [2020-07-29 01:30:06,720 INFO L280 TraceCheckUtils]: 1: Hoare triple {226#true} assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; {226#true} is VALID [2020-07-29 01:30:06,721 INFO L280 TraceCheckUtils]: 2: Hoare triple {226#true} assume !(main_~xtmp~0 > 1); {228#(<= ULTIMATE.start_main_~xtmp~0 1)} is VALID [2020-07-29 01:30:06,723 INFO L280 TraceCheckUtils]: 3: Hoare triple {228#(<= ULTIMATE.start_main_~xtmp~0 1)} main_~x~0 := 1 + main_~xtmp~0;main_~res~0 := 1 + main_~res~0; {229#(<= ULTIMATE.start_main_~x~0 2)} is VALID [2020-07-29 01:30:06,724 INFO L280 TraceCheckUtils]: 4: Hoare triple {229#(<= ULTIMATE.start_main_~x~0 2)} assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; {230#(<= ULTIMATE.start_main_~xtmp~0 0)} is VALID [2020-07-29 01:30:06,727 INFO L280 TraceCheckUtils]: 5: Hoare triple {230#(<= ULTIMATE.start_main_~xtmp~0 0)} assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := 1 + main_~restmp~0; {227#false} is VALID [2020-07-29 01:30:06,728 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:30:06,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553545331] [2020-07-29 01:30:06,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 01:30:06,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-29 01:30:06,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084147687] [2020-07-29 01:30:06,755 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:30:06,755 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:30:06,755 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:30:06,755 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:30:06,755 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-29 01:30:06,755 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:06,756 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:30:06,756 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:30:06,756 INFO L133 ssoRankerPreferences]: Filename of dumped script: LogAG.c_Iteration3_Loop [2020-07-29 01:30:06,756 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:30:06,756 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:30:06,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:06,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:06,781 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:06,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:06,926 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:30:06,926 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:30:06,938 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:30:06,938 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:06,943 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:30:06,943 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: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:30:06,981 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:30:06,981 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:06,985 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:30:06,986 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:30:07,019 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:30:07,020 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:07,047 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 01:30:07,047 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 01:30:07,072 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-29 01:30:07,074 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:30:07,074 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:30:07,074 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:30:07,074 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:30:07,074 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 01:30:07,074 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:07,075 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:30:07,075 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:30:07,075 INFO L133 ssoRankerPreferences]: Filename of dumped script: LogAG.c_Iteration3_Loop [2020-07-29 01:30:07,075 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:30:07,075 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:30:07,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:07,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:07,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:07,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:07,219 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:30:07,219 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:07,222 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 01:30:07,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:30:07,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:30:07,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:30:07,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:30:07,227 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:30:07,227 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:30:07,231 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:07,253 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 01:30:07,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:30:07,254 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:30:07,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:30:07,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:30:07,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:30:07,256 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:30:07,256 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:30:07,258 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 01:30:07,261 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-29 01:30:07,261 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:07,263 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-29 01:30:07,264 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-29 01:30:07,264 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 01:30:07,264 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0) = 1*ULTIMATE.start_main_~xtmp~0 Supporting invariants [] [2020-07-29 01:30:07,286 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-29 01:30:07,288 INFO L393 LassoCheck]: Loop: "assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := 1 + main_~restmp~0;" [2020-07-29 01:30:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:07,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:07,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-29 01:30:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:07,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:30:07,318 INFO L280 TraceCheckUtils]: 0: Hoare triple {231#unseeded} havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; {231#unseeded} is VALID [2020-07-29 01:30:07,320 INFO L280 TraceCheckUtils]: 1: Hoare triple {231#unseeded} assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; {231#unseeded} is VALID [2020-07-29 01:30:07,321 INFO L280 TraceCheckUtils]: 2: Hoare triple {231#unseeded} assume !(main_~xtmp~0 > 1); {231#unseeded} is VALID [2020-07-29 01:30:07,323 INFO L280 TraceCheckUtils]: 3: Hoare triple {231#unseeded} main_~x~0 := 1 + main_~xtmp~0;main_~res~0 := 1 + main_~res~0; {231#unseeded} is VALID [2020-07-29 01:30:07,323 INFO L280 TraceCheckUtils]: 4: Hoare triple {231#unseeded} assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; {231#unseeded} is VALID [2020-07-29 01:30:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:07,326 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-29 01:30:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:07,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:30:07,331 INFO L280 TraceCheckUtils]: 0: Hoare triple {234#(>= oldRank0 ULTIMATE.start_main_~xtmp~0)} assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := 1 + main_~restmp~0; {244#(or unseeded (and (> oldRank0 ULTIMATE.start_main_~xtmp~0) (>= oldRank0 0)))} is VALID [2020-07-29 01:30:07,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:30:07,332 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-29 01:30:07,337 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:30:07,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,338 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 [2020-07-29 01:30:07,338 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 2 states. [2020-07-29 01:30:07,367 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 11 states and 15 transitions. Complement of second has 5 states. [2020-07-29 01:30:07,367 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 [2020-07-29 01:30:07,367 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:30:07,367 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. cyclomatic complexity: 4 [2020-07-29 01:30:07,367 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:07,368 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:07,368 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-29 01:30:07,369 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:30:07,369 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:07,369 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:07,369 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 15 transitions. [2020-07-29 01:30:07,370 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:30:07,370 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:07,370 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:07,370 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 6 states and 8 transitions. cyclomatic complexity: 4 [2020-07-29 01:30:07,371 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 01:30:07,371 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 2 states. [2020-07-29 01:30:07,372 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:30:07,372 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 01:30:07,372 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 11 states and 15 transitions. cyclomatic complexity: 7 [2020-07-29 01:30:07,373 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 01:30:07,373 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,373 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,373 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,373 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,374 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 7 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,374 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,374 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:07,374 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,374 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:07,375 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,375 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 7 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:07,375 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,375 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,375 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,376 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,376 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,376 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 7 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,376 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,376 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 11 letters. Loop has 11 letters. [2020-07-29 01:30:07,377 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,377 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 11 letters. Loop has 11 letters. [2020-07-29 01:30:07,377 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,377 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 7 Stem has 11 letters. Loop has 11 letters. [2020-07-29 01:30:07,377 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,378 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 6 letters. Loop has 6 letters. [2020-07-29 01:30:07,378 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,378 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 6 letters. Loop has 6 letters. [2020-07-29 01:30:07,378 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,378 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 7 Stem has 6 letters. Loop has 6 letters. [2020-07-29 01:30:07,379 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,379 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:30:07,379 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,379 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:30:07,379 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,379 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 7 Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:30:07,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,381 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 7 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,381 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,381 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:07,381 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,381 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:07,382 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,382 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 7 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:07,382 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,382 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,382 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,383 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,383 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,383 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 7 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,383 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,383 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:30:07,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-29 01:30:07,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-07-29 01:30:07,384 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,384 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,385 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-07-29 01:30:07,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:07,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-29 01:30:07,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:07,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:30:07,408 INFO L280 TraceCheckUtils]: 0: Hoare triple {231#unseeded} havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; {231#unseeded} is VALID [2020-07-29 01:30:07,409 INFO L280 TraceCheckUtils]: 1: Hoare triple {231#unseeded} assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; {231#unseeded} is VALID [2020-07-29 01:30:07,409 INFO L280 TraceCheckUtils]: 2: Hoare triple {231#unseeded} assume !(main_~xtmp~0 > 1); {231#unseeded} is VALID [2020-07-29 01:30:07,411 INFO L280 TraceCheckUtils]: 3: Hoare triple {231#unseeded} main_~x~0 := 1 + main_~xtmp~0;main_~res~0 := 1 + main_~res~0; {231#unseeded} is VALID [2020-07-29 01:30:07,411 INFO L280 TraceCheckUtils]: 4: Hoare triple {231#unseeded} assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; {231#unseeded} is VALID [2020-07-29 01:30:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:07,416 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-29 01:30:07,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:07,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:30:07,430 INFO L280 TraceCheckUtils]: 0: Hoare triple {234#(>= oldRank0 ULTIMATE.start_main_~xtmp~0)} assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := 1 + main_~restmp~0; {244#(or unseeded (and (> oldRank0 ULTIMATE.start_main_~xtmp~0) (>= oldRank0 0)))} is VALID [2020-07-29 01:30:07,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:30:07,430 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-29 01:30:07,437 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:30:07,437 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,437 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,437 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2020-07-29 01:30:07,438 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 2 states. [2020-07-29 01:30:07,461 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 11 states and 15 transitions. Complement of second has 5 states. [2020-07-29 01:30:07,461 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 [2020-07-29 01:30:07,462 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:30:07,462 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. cyclomatic complexity: 4 [2020-07-29 01:30:07,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:07,462 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:07,462 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-29 01:30:07,464 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:30:07,465 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:07,465 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:07,465 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 15 transitions. [2020-07-29 01:30:07,465 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:30:07,466 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:07,466 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:07,466 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 6 states and 8 transitions. cyclomatic complexity: 4 [2020-07-29 01:30:07,466 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 01:30:07,466 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 2 states. [2020-07-29 01:30:07,467 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:30:07,469 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 01:30:07,469 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 11 states and 15 transitions. cyclomatic complexity: 7 [2020-07-29 01:30:07,470 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 01:30:07,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 7 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:07,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:07,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,472 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 7 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:07,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,472 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,472 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,473 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 7 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,473 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,473 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 11 letters. Loop has 11 letters. [2020-07-29 01:30:07,473 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,473 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 11 letters. Loop has 11 letters. [2020-07-29 01:30:07,473 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,474 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 7 Stem has 11 letters. Loop has 11 letters. [2020-07-29 01:30:07,474 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,474 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 6 letters. Loop has 6 letters. [2020-07-29 01:30:07,474 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,474 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 6 letters. Loop has 6 letters. [2020-07-29 01:30:07,474 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 7 Stem has 6 letters. Loop has 6 letters. [2020-07-29 01:30:07,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:30:07,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:30:07,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 7 Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:30:07,476 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,476 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,476 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,476 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,477 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,477 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 7 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,478 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,478 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:07,478 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,478 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:07,478 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,478 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 7 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:07,479 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,479 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,479 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,479 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,479 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,480 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 7 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,480 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,480 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:30:07,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-29 01:30:07,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-07-29 01:30:07,485 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,485 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,485 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-07-29 01:30:07,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:07,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-29 01:30:07,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:07,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:30:07,520 INFO L280 TraceCheckUtils]: 0: Hoare triple {231#unseeded} havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; {231#unseeded} is VALID [2020-07-29 01:30:07,521 INFO L280 TraceCheckUtils]: 1: Hoare triple {231#unseeded} assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; {231#unseeded} is VALID [2020-07-29 01:30:07,522 INFO L280 TraceCheckUtils]: 2: Hoare triple {231#unseeded} assume !(main_~xtmp~0 > 1); {231#unseeded} is VALID [2020-07-29 01:30:07,522 INFO L280 TraceCheckUtils]: 3: Hoare triple {231#unseeded} main_~x~0 := 1 + main_~xtmp~0;main_~res~0 := 1 + main_~res~0; {231#unseeded} is VALID [2020-07-29 01:30:07,523 INFO L280 TraceCheckUtils]: 4: Hoare triple {231#unseeded} assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; {231#unseeded} is VALID [2020-07-29 01:30:07,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:07,526 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-29 01:30:07,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:07,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:30:07,531 INFO L280 TraceCheckUtils]: 0: Hoare triple {234#(>= oldRank0 ULTIMATE.start_main_~xtmp~0)} assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := 1 + main_~restmp~0; {244#(or unseeded (and (> oldRank0 ULTIMATE.start_main_~xtmp~0) (>= oldRank0 0)))} is VALID [2020-07-29 01:30:07,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:30:07,531 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-29 01:30:07,535 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:30:07,535 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,535 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,536 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 1 loop predicates [2020-07-29 01:30:07,536 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 2 states. [2020-07-29 01:30:07,569 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 9 states and 11 transitions. Complement of second has 4 states. [2020-07-29 01:30:07,569 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 [2020-07-29 01:30:07,569 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:30:07,569 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. cyclomatic complexity: 4 [2020-07-29 01:30:07,569 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:07,570 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:07,570 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-29 01:30:07,571 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:30:07,572 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:07,572 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:07,572 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2020-07-29 01:30:07,573 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:30:07,573 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:30:07,573 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 6 states and 8 transitions. cyclomatic complexity: 4 [2020-07-29 01:30:07,573 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 01:30:07,573 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 2 states. [2020-07-29 01:30:07,574 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:30:07,574 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 01:30:07,574 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 9 states and 11 transitions. cyclomatic complexity: 4 [2020-07-29 01:30:07,574 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. cyclomatic complexity: 4 [2020-07-29 01:30:07,575 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:30:07,575 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words. [2020-07-29 01:30:07,575 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,575 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,575 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,575 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,576 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 11 transitions. cyclomatic complexity: 4 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,576 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,576 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:07,576 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,576 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:07,576 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,577 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 11 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:07,577 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,577 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 9 letters. Loop has 9 letters. [2020-07-29 01:30:07,577 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,577 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 9 letters. Loop has 9 letters. [2020-07-29 01:30:07,577 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,577 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 11 transitions. cyclomatic complexity: 4 Stem has 9 letters. Loop has 9 letters. [2020-07-29 01:30:07,578 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,578 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 6 letters. Loop has 6 letters. [2020-07-29 01:30:07,578 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,578 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 6 letters. Loop has 6 letters. [2020-07-29 01:30:07,578 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,578 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 11 transitions. cyclomatic complexity: 4 Stem has 6 letters. Loop has 6 letters. [2020-07-29 01:30:07,578 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,579 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:30:07,579 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,579 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:30:07,579 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,579 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 11 transitions. cyclomatic complexity: 4 Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:30:07,579 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,579 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 11 transitions. cyclomatic complexity: 4 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:07,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,581 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:07,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,581 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 11 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:07,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,581 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:30:07,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-29 01:30:07,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-07-29 01:30:07,582 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:07,583 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,583 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 1 letters. [2020-07-29 01:30:07,583 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,583 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2020-07-29 01:30:07,583 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:07,583 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 11 transitions. cyclomatic complexity: 4 [2020-07-29 01:30:07,584 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:30:07,584 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2020-07-29 01:30:07,585 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-29 01:30:07,585 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-29 01:30:07,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-29 01:30:07,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 01:30:07,585 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:30:07,585 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:30:07,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 01:30:07,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-29 01:30:07,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-29 01:30:07,589 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2020-07-29 01:30:07,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:30:07,589 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-29 01:30:07,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-29 01:30:07,590 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-29 01:30:07,603 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:30:07,604 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-07-29 01:30:07,604 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:30:07,604 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-07-29 01:30:07,604 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-29 01:30:07,605 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-29 01:30:07,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-29 01:30:07,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 01:30:07,605 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:30:07,605 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:30:07,605 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:30:07,606 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-29 01:30:07,606 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-29 01:30:07,606 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:30:07,606 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:30:07,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 01:30:07 BoogieIcfgContainer [2020-07-29 01:30:07,612 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 01:30:07,613 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 01:30:07,613 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 01:30:07,613 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 01:30:07,614 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:30:03" (3/4) ... [2020-07-29 01:30:07,617 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-29 01:30:07,617 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 01:30:07,620 INFO L168 Benchmark]: Toolchain (without parser) took 5126.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 209.7 MB). Free memory was 956.2 MB in the beginning and 1.0 GB in the end (delta: -77.5 MB). Peak memory consumption was 132.2 MB. Max. memory is 11.5 GB. [2020-07-29 01:30:07,621 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:30:07,622 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.50 ms. Allocated memory is still 1.0 GB. Free memory was 956.2 MB in the beginning and 944.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2020-07-29 01:30:07,623 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 944.1 MB in the beginning and 1.1 GB in the end (delta: -191.9 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:30:07,623 INFO L168 Benchmark]: Boogie Preprocessor took 20.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:30:07,624 INFO L168 Benchmark]: RCFGBuilder took 306.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2020-07-29 01:30:07,625 INFO L168 Benchmark]: BuchiAutomizer took 4430.28 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.3 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 83.0 MB). Peak memory consumption was 153.3 MB. Max. memory is 11.5 GB. [2020-07-29 01:30:07,625 INFO L168 Benchmark]: Witness Printer took 4.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:30:07,629 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 271.50 ms. Allocated memory is still 1.0 GB. Free memory was 956.2 MB in the beginning and 944.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 85.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 944.1 MB in the beginning and 1.1 GB in the end (delta: -191.9 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 306.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4430.28 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.3 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 83.0 MB). Peak memory consumption was 153.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function xtmp and consists of 3 locations. One nondeterministic module has affine ranking function xtmp and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.3s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 3.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 19 SDtfs, 34 SDslu, 6 SDs, 0 SdLazy, 35 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax168 hnf99 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq162 hnf93 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...