./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.15.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_57d7e419-5b20-4cf5-860e-55c1f44de4fa/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_57d7e419-5b20-4cf5-860e-55c1f44de4fa/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_57d7e419-5b20-4cf5-860e-55c1f44de4fa/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_57d7e419-5b20-4cf5-860e-55c1f44de4fa/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.15.c -s /tmp/vcloud-vcloud-master/worker/run_dir_57d7e419-5b20-4cf5-860e-55c1f44de4fa/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_57d7e419-5b20-4cf5-860e-55c1f44de4fa/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 28b8f223b97939bdb3ffe1e6bb25bd5d633f35c4 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 23:27:07,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:27:07,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:27:07,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:27:07,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:27:07,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:27:07,844 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:27:07,847 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:27:07,849 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:27:07,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:27:07,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:27:07,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:27:07,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:27:07,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:27:07,871 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:27:07,873 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:27:07,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:27:07,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:27:07,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:27:07,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:27:07,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:27:07,892 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:27:07,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:27:07,897 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:27:07,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:27:07,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:27:07,904 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:27:07,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:27:07,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:27:07,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:27:07,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:27:07,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:27:07,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:27:07,909 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:27:07,910 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:27:07,910 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:27:07,911 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:27:07,911 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:27:07,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:27:07,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:27:07,913 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:27:07,913 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_57d7e419-5b20-4cf5-860e-55c1f44de4fa/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-15 23:27:07,933 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:27:07,933 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:27:07,934 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:27:07,935 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:27:07,935 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:27:07,935 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 23:27:07,935 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 23:27:07,935 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 23:27:07,936 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 23:27:07,936 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 23:27:07,936 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 23:27:07,936 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:27:07,937 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 23:27:07,937 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:27:07,937 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:27:07,937 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 23:27:07,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 23:27:07,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 23:27:07,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:27:07,938 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 23:27:07,939 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:27:07,939 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 23:27:07,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:27:07,939 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:27:07,939 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 23:27:07,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:27:07,940 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:27:07,940 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 23:27:07,941 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 23:27:07,941 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_57d7e419-5b20-4cf5-860e-55c1f44de4fa/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 28b8f223b97939bdb3ffe1e6bb25bd5d633f35c4 [2019-11-15 23:27:07,983 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:27:08,004 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:27:08,009 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:27:08,011 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:27:08,011 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:27:08,012 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_57d7e419-5b20-4cf5-860e-55c1f44de4fa/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/b.15.c [2019-11-15 23:27:08,076 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_57d7e419-5b20-4cf5-860e-55c1f44de4fa/bin/uautomizer/data/471176db7/7e79bd5f029247c799a9189dfb6420bd/FLAG2daaf7d34 [2019-11-15 23:27:08,518 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:27:08,520 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_57d7e419-5b20-4cf5-860e-55c1f44de4fa/sv-benchmarks/c/termination-restricted-15/b.15.c [2019-11-15 23:27:08,528 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_57d7e419-5b20-4cf5-860e-55c1f44de4fa/bin/uautomizer/data/471176db7/7e79bd5f029247c799a9189dfb6420bd/FLAG2daaf7d34 [2019-11-15 23:27:08,974 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_57d7e419-5b20-4cf5-860e-55c1f44de4fa/bin/uautomizer/data/471176db7/7e79bd5f029247c799a9189dfb6420bd [2019-11-15 23:27:08,978 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:27:08,980 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:27:08,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:27:08,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:27:08,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:27:08,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:27:08" (1/1) ... [2019-11-15 23:27:08,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f09ad54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:27:08, skipping insertion in model container [2019-11-15 23:27:08,991 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:27:08" (1/1) ... [2019-11-15 23:27:09,000 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:27:09,025 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:27:09,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:27:09,383 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:27:09,405 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:27:09,420 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:27:09,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:27:09 WrapperNode [2019-11-15 23:27:09,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:27:09,422 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:27:09,422 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:27:09,422 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:27:09,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:27:09" (1/1) ... [2019-11-15 23:27:09,438 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:27:09" (1/1) ... [2019-11-15 23:27:09,456 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:27:09,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:27:09,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:27:09,457 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:27:09,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:27:09" (1/1) ... [2019-11-15 23:27:09,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:27:09" (1/1) ... [2019-11-15 23:27:09,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:27:09" (1/1) ... [2019-11-15 23:27:09,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:27:09" (1/1) ... [2019-11-15 23:27:09,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:27:09" (1/1) ... [2019-11-15 23:27:09,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:27:09" (1/1) ... [2019-11-15 23:27:09,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:27:09" (1/1) ... [2019-11-15 23:27:09,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:27:09,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:27:09,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:27:09,475 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:27:09,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:27:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57d7e419-5b20-4cf5-860e-55c1f44de4fa/bin/uautomizer/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 [2019-11-15 23:27:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:27:09,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:27:09,706 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:27:09,707 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 23:27:09,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:27:09 BoogieIcfgContainer [2019-11-15 23:27:09,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:27:09,709 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 23:27:09,710 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 23:27:09,713 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 23:27:09,714 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 23:27:09,715 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 11:27:08" (1/3) ... [2019-11-15 23:27:09,716 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6894ca42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 11:27:09, skipping insertion in model container [2019-11-15 23:27:09,716 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 23:27:09,716 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:27:09" (2/3) ... [2019-11-15 23:27:09,717 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6894ca42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 11:27:09, skipping insertion in model container [2019-11-15 23:27:09,717 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 23:27:09,717 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:27:09" (3/3) ... [2019-11-15 23:27:09,719 INFO L371 chiAutomizerObserver]: Analyzing ICFG b.15.c [2019-11-15 23:27:09,774 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 23:27:09,774 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 23:27:09,774 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 23:27:09,775 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:27:09,775 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:27:09,775 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 23:27:09,775 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:27:09,776 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 23:27:09,795 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-15 23:27:09,816 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 23:27:09,816 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 23:27:09,816 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 23:27:09,822 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-15 23:27:09,822 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 23:27:09,822 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 23:27:09,823 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-15 23:27:09,823 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 23:27:09,824 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 23:27:09,824 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 23:27:09,824 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-15 23:27:09,824 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 23:27:09,831 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 3#L13-3true [2019-11-15 23:27:09,831 INFO L793 eck$LassoCheckResult]: Loop: 3#L13-3true assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 6#L13-2true assume !(main_~y~0 > main_~z~0); 3#L13-3true [2019-11-15 23:27:09,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:27:09,837 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-15 23:27:09,845 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:27:09,845 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520170300] [2019-11-15 23:27:09,845 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:09,845 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:09,845 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:27:09,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:27:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:27:09,944 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:27:09,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:27:09,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1288, now seen corresponding path program 1 times [2019-11-15 23:27:09,946 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:27:09,946 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128568989] [2019-11-15 23:27:09,946 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:09,947 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:09,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:27:09,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:27:10,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:27:10,019 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128568989] [2019-11-15 23:27:10,019 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:27:10,020 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 23:27:10,020 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154851044] [2019-11-15 23:27:10,026 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-15 23:27:10,027 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:27:10,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 23:27:10,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 23:27:10,043 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2019-11-15 23:27:10,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:27:10,066 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2019-11-15 23:27:10,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 23:27:10,069 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2019-11-15 23:27:10,070 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-15 23:27:10,075 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 4 states and 5 transitions. [2019-11-15 23:27:10,076 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-11-15 23:27:10,076 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-11-15 23:27:10,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 5 transitions. [2019-11-15 23:27:10,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 23:27:10,078 INFO L688 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2019-11-15 23:27:10,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 5 transitions. [2019-11-15 23:27:10,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2019-11-15 23:27:10,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-15 23:27:10,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2019-11-15 23:27:10,109 INFO L711 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2019-11-15 23:27:10,109 INFO L591 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2019-11-15 23:27:10,109 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 23:27:10,110 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 5 transitions. [2019-11-15 23:27:10,110 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-15 23:27:10,110 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 23:27:10,110 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 23:27:10,111 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-15 23:27:10,111 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 23:27:10,111 INFO L791 eck$LassoCheckResult]: Stem: 26#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 24#L13-3 [2019-11-15 23:27:10,111 INFO L793 eck$LassoCheckResult]: Loop: 24#L13-3 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 25#L13-2 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 27#L13-2 assume !(main_~y~0 > main_~z~0); 24#L13-3 [2019-11-15 23:27:10,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:27:10,112 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2019-11-15 23:27:10,112 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:27:10,113 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033895967] [2019-11-15 23:27:10,113 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:10,113 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:10,113 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:27:10,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:27:10,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:27:10,123 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:27:10,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:27:10,124 INFO L82 PathProgramCache]: Analyzing trace with hash 40007, now seen corresponding path program 1 times [2019-11-15 23:27:10,124 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:27:10,124 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594515547] [2019-11-15 23:27:10,124 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:10,124 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:10,125 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:27:10,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:27:10,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:27:10,142 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:27:10,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:27:10,142 INFO L82 PathProgramCache]: Analyzing trace with hash 963528, now seen corresponding path program 1 times [2019-11-15 23:27:10,143 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:27:10,143 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817428664] [2019-11-15 23:27:10,143 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:10,143 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:10,144 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:27:10,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:27:10,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:27:10,164 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:27:10,277 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 23:27:10,278 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 23:27:10,278 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 23:27:10,278 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 23:27:10,279 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 23:27:10,279 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:27:10,279 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 23:27:10,279 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 23:27:10,279 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.15.c_Iteration2_Loop [2019-11-15 23:27:10,279 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 23:27:10,280 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 23:27:10,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:27:10,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:27:10,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:27:10,575 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 23:27:10,576 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57d7e419-5b20-4cf5-860e-55c1f44de4fa/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 23:27:10,589 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 23:27:10,589 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 [2019-11-15 23:27:10,603 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 23:27:10,603 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57d7e419-5b20-4cf5-860e-55c1f44de4fa/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:27:10,619 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 23:27:10,619 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 23:27:10,631 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 23:27:10,631 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57d7e419-5b20-4cf5-860e-55c1f44de4fa/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 23:27:10,647 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 23:27:10,647 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57d7e419-5b20-4cf5-860e-55c1f44de4fa/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 23:27:10,679 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 23:27:10,680 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:27:11,220 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 23:27:11,223 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 23:27:11,223 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 23:27:11,223 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 23:27:11,223 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 23:27:11,223 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 23:27:11,224 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:27:11,224 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 23:27:11,224 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 23:27:11,224 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.15.c_Iteration2_Loop [2019-11-15 23:27:11,224 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 23:27:11,224 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 23:27:11,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:27:11,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:27:11,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:27:11,374 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 23:27:11,380 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 23:27:11,382 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 [2019-11-15 23:27:11,384 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:27:11,385 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:27:11,385 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:27:11,386 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:27:11,391 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 23:27:11,391 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 23:27:11,399 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:27:11,400 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 [2019-11-15 23:27:11,401 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:27:11,401 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:27:11,402 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:27:11,402 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:27:11,405 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 23:27:11,405 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 23:27:11,416 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:27:11,416 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 [2019-11-15 23:27:11,417 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:27:11,418 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 23:27:11,418 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:27:11,419 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:27:11,419 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:27:11,420 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 23:27:11,421 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 23:27:11,437 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 23:27:11,462 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-15 23:27:11,466 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-15 23:27:11,469 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 23:27:11,471 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 23:27:11,471 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 23:27:11,472 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~y~0 - 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2019-11-15 23:27:11,476 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 23:27:11,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:27:11,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:27:11,529 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 23:27:11,530 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:27:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:27:11,544 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 23:27:11,545 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:27:11,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:27:11,599 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-15 23:27:11,600 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2 Second operand 4 states. [2019-11-15 23:27:11,641 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 8 states and 9 transitions. Complement of second has 6 states. [2019-11-15 23:27:11,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-15 23:27:11,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-15 23:27:11,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2019-11-15 23:27:11,645 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 1 letters. Loop has 3 letters. [2019-11-15 23:27:11,646 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:27:11,646 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 4 letters. Loop has 3 letters. [2019-11-15 23:27:11,646 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:27:11,647 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 1 letters. Loop has 6 letters. [2019-11-15 23:27:11,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:27:11,647 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2019-11-15 23:27:11,648 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 23:27:11,648 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. [2019-11-15 23:27:11,648 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-15 23:27:11,649 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-15 23:27:11,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-15 23:27:11,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 23:27:11,649 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:27:11,649 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:27:11,649 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:27:11,649 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-15 23:27:11,649 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-15 23:27:11,650 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 23:27:11,650 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-15 23:27:11,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 11:27:11 BoogieIcfgContainer [2019-11-15 23:27:11,657 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 23:27:11,658 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:27:11,658 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:27:11,658 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:27:11,659 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:27:09" (3/4) ... [2019-11-15 23:27:11,663 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 23:27:11,663 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:27:11,665 INFO L168 Benchmark]: Toolchain (without parser) took 2685.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 942.4 MB in the beginning and 1.0 GB in the end (delta: -68.8 MB). Peak memory consumption was 61.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:27:11,666 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:27:11,667 INFO L168 Benchmark]: CACSL2BoogieTranslator took 440.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -183.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-15 23:27:11,668 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:27:11,668 INFO L168 Benchmark]: Boogie Preprocessor took 17.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:27:11,669 INFO L168 Benchmark]: RCFGBuilder took 234.50 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-15 23:27:11,669 INFO L168 Benchmark]: BuchiAutomizer took 1947.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 95.8 MB). Peak memory consumption was 95.8 MB. Max. memory is 11.5 GB. [2019-11-15 23:27:11,670 INFO L168 Benchmark]: Witness Printer took 5.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:27:11,673 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 440.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -183.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 234.50 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1947.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 95.8 MB). Peak memory consumption was 95.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function y + -1 * z and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 4 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 8 SDtfs, 2 SDslu, 3 SDs, 0 SdLazy, 11 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax154 hnf97 lsp63 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq176 hnf91 smp85 dnf100 smp100 tf106 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...