./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-lit/cggmp2005b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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/loop-lit/cggmp2005b.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash fef737e6ce8f4d154b70d44967f8d8c87159a2fe .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 19:13:19,714 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 19:13:19,718 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 19:13:19,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 19:13:19,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 19:13:19,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 19:13:19,773 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 19:13:19,777 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 19:13:19,780 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 19:13:19,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 19:13:19,787 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 19:13:19,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 19:13:19,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 19:13:19,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 19:13:19,794 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 19:13:19,795 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 19:13:19,797 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 19:13:19,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 19:13:19,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 19:13:19,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 19:13:19,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 19:13:19,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 19:13:19,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 19:13:19,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 19:13:19,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 19:13:19,834 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 19:13:19,835 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 19:13:19,836 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 19:13:19,836 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 19:13:19,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 19:13:19,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 19:13:19,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 19:13:19,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 19:13:19,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 19:13:19,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 19:13:19,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 19:13:19,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 19:13:19,851 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 19:13:19,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 19:13:19,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 19:13:19,853 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 19:13:19,855 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-19 19:13:19,892 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 19:13:19,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 19:13:19,894 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 19:13:19,895 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 19:13:19,895 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 19:13:19,895 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 19:13:19,896 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 19:13:19,896 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 19:13:19,896 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 19:13:19,896 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 19:13:19,897 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 19:13:19,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 19:13:19,898 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 19:13:19,899 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 19:13:19,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 19:13:19,899 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 19:13:19,899 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 19:13:19,900 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 19:13:19,900 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 19:13:19,901 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 19:13:19,901 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 19:13:19,901 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 19:13:19,901 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 19:13:19,902 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 19:13:19,902 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 19:13:19,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 19:13:19,902 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 19:13:19,903 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 19:13:19,903 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 19:13:19,903 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 19:13:19,904 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 19:13:19,904 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 19:13:19,906 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 19:13:19,906 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fef737e6ce8f4d154b70d44967f8d8c87159a2fe [2020-10-19 19:13:20,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 19:13:20,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 19:13:20,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 19:13:20,282 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 19:13:20,282 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 19:13:20,283 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/cggmp2005b.i [2020-10-19 19:13:20,348 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8898ea7d/a97356ad275e4784927f0a31f359d207/FLAG5b0edf237 [2020-10-19 19:13:20,791 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 19:13:20,792 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/cggmp2005b.i [2020-10-19 19:13:20,798 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8898ea7d/a97356ad275e4784927f0a31f359d207/FLAG5b0edf237 [2020-10-19 19:13:21,184 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8898ea7d/a97356ad275e4784927f0a31f359d207 [2020-10-19 19:13:21,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 19:13:21,193 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 19:13:21,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 19:13:21,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 19:13:21,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 19:13:21,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 07:13:21" (1/1) ... [2020-10-19 19:13:21,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@111529b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:21, skipping insertion in model container [2020-10-19 19:13:21,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 07:13:21" (1/1) ... [2020-10-19 19:13:21,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 19:13:21,238 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 19:13:21,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 19:13:21,449 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 19:13:21,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 19:13:21,487 INFO L208 MainTranslator]: Completed translation [2020-10-19 19:13:21,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:21 WrapperNode [2020-10-19 19:13:21,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 19:13:21,489 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 19:13:21,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 19:13:21,489 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 19:13:21,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:21" (1/1) ... [2020-10-19 19:13:21,605 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:21" (1/1) ... [2020-10-19 19:13:21,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 19:13:21,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 19:13:21,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 19:13:21,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 19:13:21,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:21" (1/1) ... [2020-10-19 19:13:21,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:21" (1/1) ... [2020-10-19 19:13:21,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:21" (1/1) ... [2020-10-19 19:13:21,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:21" (1/1) ... [2020-10-19 19:13:21,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:21" (1/1) ... [2020-10-19 19:13:21,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:21" (1/1) ... [2020-10-19 19:13:21,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:21" (1/1) ... [2020-10-19 19:13:21,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 19:13:21,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 19:13:21,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 19:13:21,653 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 19:13:21,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:21" (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 [2020-10-19 19:13:21,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 19:13:21,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 19:13:21,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 19:13:21,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 19:13:21,938 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 19:13:21,938 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-10-19 19:13:21,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:13:21 BoogieIcfgContainer [2020-10-19 19:13:21,940 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 19:13:21,941 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 19:13:21,941 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 19:13:21,945 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 19:13:21,946 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:13:21,947 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 07:13:21" (1/3) ... [2020-10-19 19:13:21,948 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f66860b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 07:13:21, skipping insertion in model container [2020-10-19 19:13:21,948 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:13:21,948 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:21" (2/3) ... [2020-10-19 19:13:21,949 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f66860b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 07:13:21, skipping insertion in model container [2020-10-19 19:13:21,949 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:13:21,949 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:13:21" (3/3) ... [2020-10-19 19:13:21,951 INFO L373 chiAutomizerObserver]: Analyzing ICFG cggmp2005b.i [2020-10-19 19:13:22,004 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 19:13:22,004 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 19:13:22,004 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 19:13:22,004 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 19:13:22,004 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 19:13:22,005 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 19:13:22,005 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 19:13:22,005 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 19:13:22,024 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-10-19 19:13:22,074 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 19:13:22,074 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:13:22,074 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:13:22,084 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 19:13:22,084 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-19 19:13:22,085 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 19:13:22,085 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-10-19 19:13:22,087 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 19:13:22,087 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:13:22,087 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:13:22,088 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 19:13:22,088 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-19 19:13:22,097 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 10#L-1true havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 13#L35-3true [2020-10-19 19:13:22,097 INFO L796 eck$LassoCheckResult]: Loop: 13#L35-3true assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 7#L31-2true assume !(main_~j~0 < 20); 5#L31-3true main_~k~0 := 4; 14#L35-2true assume !true; 13#L35-3true [2020-10-19 19:13:22,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:22,104 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-10-19 19:13:22,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:13:22,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180666060] [2020-10-19 19:13:22,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:13:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:22,220 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:22,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:22,234 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:22,256 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:13:22,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:22,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1269299, now seen corresponding path program 1 times [2020-10-19 19:13:22,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:13:22,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74782025] [2020-10-19 19:13:22,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:13:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:13:22,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:13:22,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74782025] [2020-10-19 19:13:22,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 19:13:22,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-19 19:13:22,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566989864] [2020-10-19 19:13:22,300 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-19 19:13:22,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 19:13:22,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-19 19:13:22,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-19 19:13:22,322 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2020-10-19 19:13:22,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 19:13:22,330 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2020-10-19 19:13:22,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-19 19:13:22,332 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 16 transitions. [2020-10-19 19:13:22,336 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 19:13:22,345 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 6 states and 8 transitions. [2020-10-19 19:13:22,346 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-10-19 19:13:22,347 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-10-19 19:13:22,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 8 transitions. [2020-10-19 19:13:22,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 19:13:22,348 INFO L691 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-10-19 19:13:22,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 8 transitions. [2020-10-19 19:13:22,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2020-10-19 19:13:22,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-19 19:13:22,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2020-10-19 19:13:22,389 INFO L714 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-10-19 19:13:22,389 INFO L594 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-10-19 19:13:22,389 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 19:13:22,390 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2020-10-19 19:13:22,391 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 19:13:22,392 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:13:22,392 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:13:22,393 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 19:13:22,393 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-19 19:13:22,394 INFO L794 eck$LassoCheckResult]: Stem: 39#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 37#L-1 havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 38#L35-3 [2020-10-19 19:13:22,394 INFO L796 eck$LassoCheckResult]: Loop: 38#L35-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 40#L31-2 assume !(main_~j~0 < 20); 42#L31-3 main_~k~0 := 4; 41#L35-2 assume !(main_~k~0 <= 3); 38#L35-3 [2020-10-19 19:13:22,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:22,395 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2020-10-19 19:13:22,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:13:22,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515701048] [2020-10-19 19:13:22,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:13:22,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:22,434 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:22,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:22,458 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:22,468 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:13:22,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:22,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1269295, now seen corresponding path program 1 times [2020-10-19 19:13:22,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:13:22,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939998004] [2020-10-19 19:13:22,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:13:22,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:22,495 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:22,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:22,505 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:22,507 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:13:22,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:22,510 INFO L82 PathProgramCache]: Analyzing trace with hash 889696497, now seen corresponding path program 1 times [2020-10-19 19:13:22,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:13:22,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129724843] [2020-10-19 19:13:22,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:13:22,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:13:22,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:13:22,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129724843] [2020-10-19 19:13:22,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 19:13:22,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 19:13:22,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907679374] [2020-10-19 19:13:22,633 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:13:22,634 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:13:22,634 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:13:22,634 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:13:22,635 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 19:13:22,635 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:22,635 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:13:22,635 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:13:22,635 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration2_Loop [2020-10-19 19:13:22,636 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:13:22,636 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:13:22,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:22,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:22,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:22,742 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:13:22,743 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) [2020-10-19 19:13:22,757 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 19:13:22,758 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 [2020-10-19 19:13:22,768 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 19:13:22,769 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=20} Honda state: {ULTIMATE.start_main_~j~0=20} 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) [2020-10-19 19:13:22,817 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 19:13:22,817 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:13:22,869 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 19:13:22,869 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 [2020-10-19 19:13:22,911 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 19:13:22,914 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:13:22,914 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:13:22,914 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:13:22,914 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:13:22,914 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 19:13:22,915 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:22,915 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:13:22,915 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:13:22,915 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration2_Loop [2020-10-19 19:13:22,916 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:13:22,916 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:13:22,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:22,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:22,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:22,982 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:13:22,988 INFO L489 LassoAnalysis]: Using template 'affine'. 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) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:22,997 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 [2020-10-19 19:13:23,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:23,000 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:13:23,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:23,001 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:23,001 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:13:23,004 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:13:23,004 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:13:23,007 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 6 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:23,037 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 [2020-10-19 19:13:23,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:23,040 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:13:23,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:23,040 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:23,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:13:23,042 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:13:23,043 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:13:23,046 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 19:13:23,056 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-19 19:13:23,056 INFO L444 ModelExtractionUtils]: 0 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 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 [2020-10-19 19:13:23,068 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 19:13:23,068 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 19:13:23,068 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 19:13:23,070 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 201 Supporting invariants [] [2020-10-19 19:13:23,105 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 19:13:23,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:13:23,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 19:13:23,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:13:23,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:13:23,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 19:13:23,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:13:23,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:13:23,249 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 [2020-10-19 19:13:23,251 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3 Second operand 3 states. [2020-10-19 19:13:23,301 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 14 states and 21 transitions. Complement of second has 4 states. [2020-10-19 19:13:23,303 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 [2020-10-19 19:13:23,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 19:13:23,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-10-19 19:13:23,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2020-10-19 19:13:23,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:13:23,313 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2020-10-19 19:13:23,313 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:13:23,314 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 8 letters. [2020-10-19 19:13:23,315 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:13:23,315 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 21 transitions. [2020-10-19 19:13:23,321 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-10-19 19:13:23,323 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 20 transitions. [2020-10-19 19:13:23,323 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-10-19 19:13:23,324 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-10-19 19:13:23,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 20 transitions. [2020-10-19 19:13:23,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 19:13:23,324 INFO L691 BuchiCegarLoop]: Abstraction has 13 states and 20 transitions. [2020-10-19 19:13:23,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 20 transitions. [2020-10-19 19:13:23,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2020-10-19 19:13:23,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-19 19:13:23,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 17 transitions. [2020-10-19 19:13:23,329 INFO L714 BuchiCegarLoop]: Abstraction has 11 states and 17 transitions. [2020-10-19 19:13:23,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 19:13:23,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 19:13:23,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 19:13:23,330 INFO L87 Difference]: Start difference. First operand 11 states and 17 transitions. Second operand 3 states. [2020-10-19 19:13:23,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 19:13:23,339 INFO L93 Difference]: Finished difference Result 12 states and 19 transitions. [2020-10-19 19:13:23,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 19:13:23,340 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 19 transitions. [2020-10-19 19:13:23,341 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-10-19 19:13:23,341 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 19 transitions. [2020-10-19 19:13:23,342 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-10-19 19:13:23,342 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-10-19 19:13:23,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 19 transitions. [2020-10-19 19:13:23,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 19:13:23,342 INFO L691 BuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2020-10-19 19:13:23,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 19 transitions. [2020-10-19 19:13:23,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-10-19 19:13:23,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-19 19:13:23,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 19 transitions. [2020-10-19 19:13:23,345 INFO L714 BuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2020-10-19 19:13:23,345 INFO L594 BuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2020-10-19 19:13:23,345 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-19 19:13:23,345 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 19 transitions. [2020-10-19 19:13:23,346 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-10-19 19:13:23,346 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:13:23,347 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:13:23,347 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-19 19:13:23,347 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-19 19:13:23,347 INFO L794 eck$LassoCheckResult]: Stem: 124#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 119#L-1 havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 120#L35-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 121#L31-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 129#L31-2 [2020-10-19 19:13:23,348 INFO L796 eck$LassoCheckResult]: Loop: 129#L31-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 129#L31-2 [2020-10-19 19:13:23,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:23,348 INFO L82 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2020-10-19 19:13:23,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:13:23,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36476647] [2020-10-19 19:13:23,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:13:23,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:23,361 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:23,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:23,372 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:23,376 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:13:23,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:23,377 INFO L82 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2020-10-19 19:13:23,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:13:23,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979910188] [2020-10-19 19:13:23,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:13:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:23,381 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:23,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:23,383 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:23,385 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:13:23,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:23,386 INFO L82 PathProgramCache]: Analyzing trace with hash 28699944, now seen corresponding path program 2 times [2020-10-19 19:13:23,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:13:23,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239403197] [2020-10-19 19:13:23,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:13:23,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:23,399 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:23,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:23,409 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:23,413 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:13:23,585 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2020-10-19 19:13:23,648 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:13:23,648 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:13:23,648 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:13:23,648 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:13:23,648 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 19:13:23,649 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:23,649 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:13:23,649 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:13:23,649 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration3_Lasso [2020-10-19 19:13:23,649 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:13:23,649 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:13:23,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:23,717 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:23,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:23,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:23,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:23,732 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:23,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:23,946 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:13:23,946 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-19 19:13:23,959 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 [2020-10-19 19:13:23,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:23,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:23,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:23,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:23,968 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:13:23,968 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:13:23,977 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) [2020-10-19 19:13:24,027 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:24,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:24,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:24,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:24,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:13:24,037 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:13:24,038 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:13:24,043 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) [2020-10-19 19:13:24,091 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:24,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:24,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:24,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:24,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:13:24,096 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:13:24,096 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:13:24,101 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:13:24,151 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 [2020-10-19 19:13:24,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:24,154 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:24,154 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:24,154 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:24,157 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:13:24,158 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:13:24,162 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 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 [2020-10-19 19:13:24,212 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 [2020-10-19 19:13:24,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:24,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:24,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:24,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:13:24,218 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:13:24,218 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:13:24,223 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 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:24,273 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 [2020-10-19 19:13:24,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:24,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:24,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:24,277 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:13:24,280 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:13:24,281 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:13:24,287 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 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:24,326 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 [2020-10-19 19:13:24,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:24,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:24,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:24,329 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:13:24,332 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:13:24,332 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:13:24,336 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 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:24,372 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 [2020-10-19 19:13:24,374 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:24,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:24,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:24,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:13:24,378 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:13:24,378 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:13:24,384 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 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:24,428 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 [2020-10-19 19:13:24,430 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:24,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:24,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:24,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:13:24,434 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:13:24,434 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:13:24,439 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:13:24,483 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 [2020-10-19 19:13:24,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:24,485 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:13:24,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:24,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:24,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:13:24,487 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:13:24,487 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:24,489 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 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:24,518 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 [2020-10-19 19:13:24,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:24,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:24,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:24,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:13:24,524 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:13:24,524 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:13:24,535 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 [2020-10-19 19:13:24,568 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 [2020-10-19 19:13:24,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:24,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:24,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:24,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:13:24,581 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:13:24,581 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:13:24,586 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 [2020-10-19 19:13:24,626 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 [2020-10-19 19:13:24,628 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:24,628 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:24,628 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:24,629 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:13:24,631 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:13:24,631 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:13:24,636 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) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:24,688 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 [2020-10-19 19:13:24,690 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:24,691 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:24,691 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:24,691 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:13:24,695 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:13:24,695 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:13:24,704 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 19:13:24,719 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-10-19 19:13:24,719 INFO L444 ModelExtractionUtils]: 1 out of 10 variables were initially zero. Simplification set additionally 4 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 [2020-10-19 19:13:24,726 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 19:13:24,732 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-19 19:13:24,732 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 19:13:24,733 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 39 Supporting invariants [1*ULTIMATE.start_main_~i~0 - 1 >= 0] [2020-10-19 19:13:24,779 INFO L297 tatePredicateManager]: 4 out of 5 supporting invariants were superfluous and have been removed [2020-10-19 19:13:24,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:24,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:13:24,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 19:13:24,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:13:24,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:13:24,858 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 19:13:24,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:13:24,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:13:24,859 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 1 loop predicates [2020-10-19 19:13:24,860 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 19 transitions. cyclomatic complexity: 10 Second operand 4 states. [2020-10-19 19:13:24,920 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 19 transitions. cyclomatic complexity: 10. Second operand 4 states. Result 21 states and 34 transitions. Complement of second has 6 states. [2020-10-19 19:13:24,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-19 19:13:24,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 19:13:24,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2020-10-19 19:13:24,921 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 1 letters. [2020-10-19 19:13:24,921 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:13:24,922 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 5 letters. Loop has 1 letters. [2020-10-19 19:13:24,922 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:13:24,922 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2020-10-19 19:13:24,923 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:13:24,923 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 34 transitions. [2020-10-19 19:13:24,925 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-19 19:13:24,926 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 28 transitions. [2020-10-19 19:13:24,926 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-10-19 19:13:24,926 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-10-19 19:13:24,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 28 transitions. [2020-10-19 19:13:24,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 19:13:24,927 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 28 transitions. [2020-10-19 19:13:24,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 28 transitions. [2020-10-19 19:13:24,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2020-10-19 19:13:24,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-19 19:13:24,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 27 transitions. [2020-10-19 19:13:24,930 INFO L714 BuchiCegarLoop]: Abstraction has 17 states and 27 transitions. [2020-10-19 19:13:24,931 INFO L594 BuchiCegarLoop]: Abstraction has 17 states and 27 transitions. [2020-10-19 19:13:24,931 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-19 19:13:24,931 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 27 transitions. [2020-10-19 19:13:24,932 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-19 19:13:24,932 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:13:24,932 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:13:24,933 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-19 19:13:24,933 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-19 19:13:24,933 INFO L794 eck$LassoCheckResult]: Stem: 221#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 216#L-1 havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 217#L35-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 218#L31-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 227#L31-2 assume !(main_~j~0 < 20); 224#L31-3 main_~k~0 := 4; 222#L35-2 [2020-10-19 19:13:24,934 INFO L796 eck$LassoCheckResult]: Loop: 222#L35-2 assume !!(main_~k~0 <= 3);main_~k~0 := 1 + main_~k~0; 222#L35-2 [2020-10-19 19:13:24,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:24,935 INFO L82 PathProgramCache]: Analyzing trace with hash 889698226, now seen corresponding path program 1 times [2020-10-19 19:13:24,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:13:24,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896035447] [2020-10-19 19:13:24,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:13:24,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:13:24,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:13:24,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896035447] [2020-10-19 19:13:24,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989052705] [2020-10-19 19:13:24,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 19:13:25,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:13:25,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 19:13:25,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:13:25,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:13:25,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 19:13:25,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-19 19:13:25,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846159457] [2020-10-19 19:13:25,210 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 19:13:25,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:25,211 INFO L82 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 1 times [2020-10-19 19:13:25,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:13:25,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709785339] [2020-10-19 19:13:25,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:13:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:25,219 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:25,222 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:25,224 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:13:25,241 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:13:25,241 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:13:25,241 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:13:25,241 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:13:25,241 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 19:13:25,241 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:25,241 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:13:25,242 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:13:25,242 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration4_Loop [2020-10-19 19:13:25,242 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:13:25,242 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:13:25,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:25,269 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:13:25,270 INFO L404 LassoAnalysis]: Checking for nontermination... 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) [2020-10-19 19:13:25,274 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 19:13:25,274 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 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) [2020-10-19 19:13:25,314 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 19:13:25,314 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 [2020-10-19 19:13:25,348 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 19:13:25,349 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:13:25,349 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:13:25,350 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:13:25,350 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:13:25,350 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 19:13:25,350 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:25,350 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:13:25,350 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:13:25,350 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration4_Loop [2020-10-19 19:13:25,350 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:13:25,350 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:13:25,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:25,371 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:13:25,371 INFO L489 LassoAnalysis]: Using template 'affine'. 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 [2020-10-19 19:13:25,377 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 [2020-10-19 19:13:25,378 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:25,378 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:13:25,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:25,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:25,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:13:25,379 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:13:25,379 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:13:25,382 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 19:13:25,384 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-19 19:13:25,384 INFO L444 ModelExtractionUtils]: 0 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 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 [2020-10-19 19:13:25,386 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 19:13:25,387 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 19:13:25,387 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 19:13:25,387 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = -2*ULTIMATE.start_main_~k~0 + 7 Supporting invariants [] [2020-10-19 19:13:25,411 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 19:13:25,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:25,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:13:25,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 19:13:25,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:13:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:13:25,441 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 19:13:25,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:13:25,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:13:25,442 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 [2020-10-19 19:13:25,442 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 27 transitions. cyclomatic complexity: 14 Second operand 2 states. [2020-10-19 19:13:25,455 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 27 transitions. cyclomatic complexity: 14. Second operand 2 states. Result 48 states and 76 transitions. Complement of second has 5 states. [2020-10-19 19:13:25,456 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 [2020-10-19 19:13:25,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-19 19:13:25,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-10-19 19:13:25,457 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 1 letters. [2020-10-19 19:13:25,457 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:13:25,457 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 7 letters. Loop has 1 letters. [2020-10-19 19:13:25,457 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:13:25,457 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 2 letters. [2020-10-19 19:13:25,458 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:13:25,458 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 76 transitions. [2020-10-19 19:13:25,460 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-19 19:13:25,461 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 32 states and 52 transitions. [2020-10-19 19:13:25,462 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-10-19 19:13:25,462 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-10-19 19:13:25,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 52 transitions. [2020-10-19 19:13:25,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 19:13:25,463 INFO L691 BuchiCegarLoop]: Abstraction has 32 states and 52 transitions. [2020-10-19 19:13:25,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 52 transitions. [2020-10-19 19:13:25,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 17. [2020-10-19 19:13:25,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-19 19:13:25,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2020-10-19 19:13:25,466 INFO L714 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2020-10-19 19:13:25,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 19:13:25,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 19:13:25,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2020-10-19 19:13:25,467 INFO L87 Difference]: Start difference. First operand 17 states and 26 transitions. Second operand 7 states. [2020-10-19 19:13:25,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 19:13:25,487 INFO L93 Difference]: Finished difference Result 18 states and 27 transitions. [2020-10-19 19:13:25,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 19:13:25,488 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 27 transitions. [2020-10-19 19:13:25,489 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-19 19:13:25,490 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 27 transitions. [2020-10-19 19:13:25,490 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-10-19 19:13:25,490 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-10-19 19:13:25,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 27 transitions. [2020-10-19 19:13:25,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 19:13:25,491 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2020-10-19 19:13:25,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 27 transitions. [2020-10-19 19:13:25,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-19 19:13:25,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-19 19:13:25,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 27 transitions. [2020-10-19 19:13:25,493 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2020-10-19 19:13:25,493 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2020-10-19 19:13:25,494 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-19 19:13:25,494 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 27 transitions. [2020-10-19 19:13:25,494 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-19 19:13:25,495 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:13:25,495 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:13:25,495 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1] [2020-10-19 19:13:25,495 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-19 19:13:25,496 INFO L794 eck$LassoCheckResult]: Stem: 377#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 375#L-1 havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 376#L35-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 378#L31-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 387#L31-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 390#L31-2 assume !(main_~j~0 < 20); 384#L31-3 main_~k~0 := 4; 382#L35-2 assume !(main_~k~0 <= 3); 379#L35-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 380#L31-2 assume !(main_~j~0 < 20); 383#L31-3 main_~k~0 := 4; 381#L35-2 [2020-10-19 19:13:25,496 INFO L796 eck$LassoCheckResult]: Loop: 381#L35-2 assume !!(main_~k~0 <= 3);main_~k~0 := 1 + main_~k~0; 381#L35-2 [2020-10-19 19:13:25,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:25,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1360977536, now seen corresponding path program 1 times [2020-10-19 19:13:25,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:13:25,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715447883] [2020-10-19 19:13:25,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:13:25,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:13:25,544 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 19:13:25,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715447883] [2020-10-19 19:13:25,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981490964] [2020-10-19 19:13:25,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 19:13:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:13:25,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 19:13:25,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:13:25,633 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 19:13:25,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 19:13:25,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2020-10-19 19:13:25,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739280522] [2020-10-19 19:13:25,634 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 19:13:25,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:25,635 INFO L82 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 2 times [2020-10-19 19:13:25,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:13:25,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172984548] [2020-10-19 19:13:25,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:13:25,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:25,638 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:25,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:25,639 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:25,641 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:13:25,651 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:13:25,651 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:13:25,651 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:13:25,651 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:13:25,651 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 19:13:25,651 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:25,651 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:13:25,651 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:13:25,652 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration5_Loop [2020-10-19 19:13:25,652 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:13:25,652 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:13:25,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:25,683 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:13:25,683 INFO L404 LassoAnalysis]: Checking for nontermination... 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 [2020-10-19 19:13:25,698 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 19:13:25,698 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:13:25,748 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 19:13:25,748 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:25,785 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 19:13:25,787 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:13:25,787 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:13:25,787 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:13:25,787 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:13:25,787 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 19:13:25,787 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:25,788 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:13:25,788 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:13:25,788 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration5_Loop [2020-10-19 19:13:25,788 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:13:25,788 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:13:25,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:25,811 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:13:25,811 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:25,816 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 [2020-10-19 19:13:25,817 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:25,817 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:13:25,817 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:25,817 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:25,818 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:13:25,819 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:13:25,819 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:13:25,822 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 19:13:25,830 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-19 19:13:25,830 INFO L444 ModelExtractionUtils]: 0 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:13:25,836 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 19:13:25,836 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 19:13:25,836 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 19:13:25,836 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = -2*ULTIMATE.start_main_~k~0 + 7 Supporting invariants [] Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:25,857 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 19:13:25,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:13:25,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 19:13:25,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:13:25,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:13:25,890 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 19:13:25,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:13:25,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:13:25,891 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 [2020-10-19 19:13:25,891 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13 Second operand 2 states. [2020-10-19 19:13:25,914 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 44 states and 69 transitions. Complement of second has 5 states. [2020-10-19 19:13:25,918 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 [2020-10-19 19:13:25,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-19 19:13:25,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-10-19 19:13:25,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 1 letters. [2020-10-19 19:13:25,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:13:25,919 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-19 19:13:25,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:25,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:13:25,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 19:13:25,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:13:25,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:13:25,956 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 19:13:25,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:13:25,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:13:25,957 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 [2020-10-19 19:13:25,957 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13 Second operand 2 states. [2020-10-19 19:13:25,970 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 44 states and 69 transitions. Complement of second has 5 states. [2020-10-19 19:13:25,971 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 [2020-10-19 19:13:25,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-19 19:13:25,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-10-19 19:13:25,971 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 1 letters. [2020-10-19 19:13:25,971 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:13:25,971 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-19 19:13:25,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:13:25,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 19:13:25,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:13:26,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:13:26,001 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 19:13:26,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:13:26,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:13:26,002 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 [2020-10-19 19:13:26,002 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13 Second operand 2 states. [2020-10-19 19:13:26,019 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 33 states and 49 transitions. Complement of second has 4 states. [2020-10-19 19:13:26,019 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 [2020-10-19 19:13:26,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-19 19:13:26,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2020-10-19 19:13:26,020 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 11 letters. Loop has 1 letters. [2020-10-19 19:13:26,020 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:13:26,021 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 12 letters. Loop has 1 letters. [2020-10-19 19:13:26,021 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:13:26,021 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 11 letters. Loop has 2 letters. [2020-10-19 19:13:26,021 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:13:26,021 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 49 transitions. [2020-10-19 19:13:26,022 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 19:13:26,022 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2020-10-19 19:13:26,022 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 19:13:26,022 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 19:13:26,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 19:13:26,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 19:13:26,023 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:13:26,023 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:13:26,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 19:13:26,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-19 19:13:26,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-19 19:13:26,024 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 9 states. [2020-10-19 19:13:26,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 19:13:26,024 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-10-19 19:13:26,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-19 19:13:26,024 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-10-19 19:13:26,024 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 19:13:26,024 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 19:13:26,024 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 19:13:26,024 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 19:13:26,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 19:13:26,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 19:13:26,025 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:13:26,025 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:13:26,025 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:13:26,025 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-19 19:13:26,025 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 19:13:26,025 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 19:13:26,025 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 19:13:26,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 07:13:26 BoogieIcfgContainer [2020-10-19 19:13:26,031 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 19:13:26,031 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 19:13:26,031 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 19:13:26,032 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 19:13:26,032 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:13:21" (3/4) ... [2020-10-19 19:13:26,036 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 19:13:26,036 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 19:13:26,038 INFO L168 Benchmark]: Toolchain (without parser) took 4849.84 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 222.3 MB). Free memory was 960.0 MB in the beginning and 1.1 GB in the end (delta: -101.4 MB). Peak memory consumption was 120.9 MB. Max. memory is 11.5 GB. [2020-10-19 19:13:26,038 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 19:13:26,039 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.61 ms. Allocated memory is still 1.0 GB. Free memory was 960.0 MB in the beginning and 949.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 19:13:26,041 INFO L168 Benchmark]: Boogie Procedure Inliner took 139.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -189.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-10-19 19:13:26,041 INFO L168 Benchmark]: Boogie Preprocessor took 23.29 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2020-10-19 19:13:26,042 INFO L168 Benchmark]: RCFGBuilder took 288.22 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: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2020-10-19 19:13:26,043 INFO L168 Benchmark]: BuchiAutomizer took 4089.77 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 79.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 49.6 MB). Peak memory consumption was 128.8 MB. Max. memory is 11.5 GB. [2020-10-19 19:13:26,043 INFO L168 Benchmark]: Witness Printer took 4.87 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 19:13:26,047 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 293.61 ms. Allocated memory is still 1.0 GB. Free memory was 960.0 MB in the beginning and 949.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 139.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -189.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.29 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 288.22 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: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4089.77 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 79.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 49.6 MB). Peak memory consumption was 128.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.87 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 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 8 terminating modules (4 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * i + 201 and consists of 3 locations. One deterministic module has affine ranking function -2 * j + 39 and consists of 5 locations. One deterministic module has affine ranking function -2 * k + 7 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * k + 7 and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.0s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 3.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 18 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 4. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 82 SDtfs, 51 SDslu, 39 SDs, 0 SdLazy, 45 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT2 lasso1 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax100 hnf98 lsp85 ukn92 mio100 lsp93 div100 bol100 ite100 ukn100 eq164 hnf93 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 30ms VariablesStem: 3 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...