./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.01.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4d50399d-aa0d-417f-80c3-1e3a4f2f132f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_4d50399d-aa0d-417f-80c3-1e3a4f2f132f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4d50399d-aa0d-417f-80c3-1e3a4f2f132f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4d50399d-aa0d-417f-80c3-1e3a4f2f132f/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.01.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4d50399d-aa0d-417f-80c3-1e3a4f2f132f/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4d50399d-aa0d-417f-80c3-1e3a4f2f132f/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 244394b3b061c6d1f93a1cd8b3ba202cf580ef48 ....................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 03:25:39,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 03:25:39,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 03:25:39,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 03:25:39,737 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 03:25:39,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 03:25:39,739 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 03:25:39,741 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 03:25:39,743 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 03:25:39,744 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 03:25:39,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 03:25:39,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 03:25:39,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 03:25:39,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 03:25:39,759 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 03:25:39,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 03:25:39,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 03:25:39,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 03:25:39,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 03:25:39,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 03:25:39,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 03:25:39,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 03:25:39,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 03:25:39,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 03:25:39,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 03:25:39,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 03:25:39,786 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 03:25:39,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 03:25:39,788 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 03:25:39,790 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 03:25:39,790 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 03:25:39,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 03:25:39,791 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 03:25:39,792 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 03:25:39,793 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 03:25:39,794 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 03:25:39,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 03:25:39,795 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 03:25:39,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 03:25:39,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 03:25:39,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 03:25:39,798 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4d50399d-aa0d-417f-80c3-1e3a4f2f132f/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-20 03:25:39,827 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 03:25:39,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 03:25:39,839 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 03:25:39,839 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 03:25:39,839 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 03:25:39,839 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 03:25:39,840 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 03:25:39,840 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 03:25:39,840 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 03:25:39,840 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 03:25:39,841 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 03:25:39,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 03:25:39,841 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 03:25:39,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 03:25:39,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 03:25:39,842 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 03:25:39,842 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 03:25:39,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 03:25:39,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 03:25:39,843 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 03:25:39,843 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 03:25:39,843 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 03:25:39,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 03:25:39,843 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 03:25:39,844 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 03:25:39,845 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 03:25:39,845 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 03:25:39,845 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 03:25:39,846 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 03:25:39,847 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_4d50399d-aa0d-417f-80c3-1e3a4f2f132f/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 -> 244394b3b061c6d1f93a1cd8b3ba202cf580ef48 [2019-11-20 03:25:40,039 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 03:25:40,054 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 03:25:40,058 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 03:25:40,059 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 03:25:40,060 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 03:25:40,062 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4d50399d-aa0d-417f-80c3-1e3a4f2f132f/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/b.01.c [2019-11-20 03:25:40,129 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4d50399d-aa0d-417f-80c3-1e3a4f2f132f/bin/uautomizer/data/5df245ace/77dcc9648d6645a1a15ffb13f4d87e3d/FLAG2cd0f2d2d [2019-11-20 03:25:40,562 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 03:25:40,563 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4d50399d-aa0d-417f-80c3-1e3a4f2f132f/sv-benchmarks/c/termination-restricted-15/b.01.c [2019-11-20 03:25:40,568 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4d50399d-aa0d-417f-80c3-1e3a4f2f132f/bin/uautomizer/data/5df245ace/77dcc9648d6645a1a15ffb13f4d87e3d/FLAG2cd0f2d2d [2019-11-20 03:25:40,982 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4d50399d-aa0d-417f-80c3-1e3a4f2f132f/bin/uautomizer/data/5df245ace/77dcc9648d6645a1a15ffb13f4d87e3d [2019-11-20 03:25:40,985 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 03:25:40,986 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 03:25:40,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 03:25:40,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 03:25:40,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 03:25:40,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:25:40" (1/1) ... [2019-11-20 03:25:40,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12904f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:25:40, skipping insertion in model container [2019-11-20 03:25:40,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:25:40" (1/1) ... [2019-11-20 03:25:41,002 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 03:25:41,016 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 03:25:41,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:25:41,213 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 03:25:41,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:25:41,326 INFO L192 MainTranslator]: Completed translation [2019-11-20 03:25:41,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:25:41 WrapperNode [2019-11-20 03:25:41,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 03:25:41,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 03:25:41,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 03:25:41,329 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 03:25:41,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:25:41" (1/1) ... [2019-11-20 03:25:41,343 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:25:41" (1/1) ... [2019-11-20 03:25:41,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 03:25:41,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 03:25:41,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 03:25:41,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 03:25:41,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:25:41" (1/1) ... [2019-11-20 03:25:41,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:25:41" (1/1) ... [2019-11-20 03:25:41,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:25:41" (1/1) ... [2019-11-20 03:25:41,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:25:41" (1/1) ... [2019-11-20 03:25:41,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:25:41" (1/1) ... [2019-11-20 03:25:41,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:25:41" (1/1) ... [2019-11-20 03:25:41,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:25:41" (1/1) ... [2019-11-20 03:25:41,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 03:25:41,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 03:25:41,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 03:25:41,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 03:25:41,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:25:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4d50399d-aa0d-417f-80c3-1e3a4f2f132f/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 [2019-11-20 03:25:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 03:25:41,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 03:25:41,651 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 03:25:41,652 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 03:25:41,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:25:41 BoogieIcfgContainer [2019-11-20 03:25:41,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 03:25:41,654 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 03:25:41,655 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 03:25:41,658 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 03:25:41,660 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 03:25:41,661 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 03:25:40" (1/3) ... [2019-11-20 03:25:41,663 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6e851947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 03:25:41, skipping insertion in model container [2019-11-20 03:25:41,663 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 03:25:41,664 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:25:41" (2/3) ... [2019-11-20 03:25:41,664 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6e851947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 03:25:41, skipping insertion in model container [2019-11-20 03:25:41,664 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 03:25:41,665 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:25:41" (3/3) ... [2019-11-20 03:25:41,666 INFO L371 chiAutomizerObserver]: Analyzing ICFG b.01.c [2019-11-20 03:25:41,721 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 03:25:41,722 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 03:25:41,722 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 03:25:41,722 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 03:25:41,722 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 03:25:41,723 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 03:25:41,723 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 03:25:41,724 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 03:25:41,741 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-11-20 03:25:41,768 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-20 03:25:41,769 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 03:25:41,769 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 03:25:41,777 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-20 03:25:41,777 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-20 03:25:41,777 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 03:25:41,777 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-11-20 03:25:41,778 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-20 03:25:41,778 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 03:25:41,779 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 03:25:41,779 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-20 03:25:41,779 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-20 03:25:41,788 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 8#L11-2true [2019-11-20 03:25:41,788 INFO L796 eck$LassoCheckResult]: Loop: 8#L11-2true assume !!(main_~x~0 > main_~y~0);main_~x~0 := main_~x~0 - 1; 8#L11-2true [2019-11-20 03:25:41,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:25:41,796 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-20 03:25:41,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:25:41,806 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460372023] [2019-11-20 03:25:41,807 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:25:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:25:41,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:25:41,906 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:25:41,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:25:41,908 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2019-11-20 03:25:41,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:25:41,909 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976445342] [2019-11-20 03:25:41,909 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:25:41,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:25:41,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:25:41,923 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:25:41,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:25:41,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-20 03:25:41,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:25:41,925 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478123727] [2019-11-20 03:25:41,925 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:25:41,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:25:41,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:25:41,939 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:25:42,000 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 03:25:42,002 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 03:25:42,002 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 03:25:42,002 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 03:25:42,002 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 03:25:42,003 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:25:42,003 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 03:25:42,003 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 03:25:42,003 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.01.c_Iteration1_Loop [2019-11-20 03:25:42,004 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 03:25:42,004 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 03:25:42,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:25:42,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:25:42,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:25:42,193 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 03:25:42,194 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4d50399d-aa0d-417f-80c3-1e3a4f2f132f/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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:25:42,200 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:25:42,201 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 03:25:42,213 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:25:42,213 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_4d50399d-aa0d-417f-80c3-1e3a4f2f132f/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 [2019-11-20 03:25:42,225 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:25:42,225 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 03:25:42,235 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:25:42,236 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_4d50399d-aa0d-417f-80c3-1e3a4f2f132f/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) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:25:42,249 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:25:42,250 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4d50399d-aa0d-417f-80c3-1e3a4f2f132f/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) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:25:42,260 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 03:25:42,261 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 03:25:42,466 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 03:25:42,468 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 03:25:42,468 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 03:25:42,468 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 03:25:42,468 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 03:25:42,468 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 03:25:42,468 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:25:42,468 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 03:25:42,469 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 03:25:42,469 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.01.c_Iteration1_Loop [2019-11-20 03:25:42,469 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 03:25:42,469 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 03:25:42,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:25:42,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:25:42,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:25:42,596 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 03:25:42,605 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4d50399d-aa0d-417f-80c3-1e3a4f2f132f/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:25:42,622 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 [2019-11-20 03:25:42,628 INFO L338 nArgumentSynthesizer]: Template has degree 0. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:25:42,633 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:25:42,633 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:25:42,633 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:25:42,644 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 03:25:42,644 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 03:25:42,662 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4d50399d-aa0d-417f-80c3-1e3a4f2f132f/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:25:42,678 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 [2019-11-20 03:25:42,680 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:25:42,680 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:25:42,680 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:25:42,680 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:25:42,690 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 03:25:42,690 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:25:42,704 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4d50399d-aa0d-417f-80c3-1e3a4f2f132f/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:25:42,723 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 [2019-11-20 03:25:42,726 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:25:42,726 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:25:42,727 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:25:42,727 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:25:42,727 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:25:42,729 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:25:42,729 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:25:42,735 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 03:25:42,756 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 03:25:42,756 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4d50399d-aa0d-417f-80c3-1e3a4f2f132f/bin/uautomizer/z3 Starting monitored process 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:25:42,765 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 03:25:42,766 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 03:25:42,766 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 03:25:42,766 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-11-20 03:25:42,771 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 03:25:42,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:25:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:25:42,839 INFO L255 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 03:25:42,840 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:25:42,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:25:42,851 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 03:25:42,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:25:42,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:25:42,874 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 [2019-11-20 03:25:42,877 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states. Second operand 2 states. [2019-11-20 03:25:42,929 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states.. Second operand 2 states. Result 15 states and 18 transitions. Complement of second has 5 states. [2019-11-20 03:25:42,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 03:25:42,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-20 03:25:42,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2019-11-20 03:25:42,934 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2019-11-20 03:25:42,934 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 03:25:42,934 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2019-11-20 03:25:42,934 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 03:25:42,935 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2019-11-20 03:25:42,935 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 03:25:42,936 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2019-11-20 03:25:42,938 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 03:25:42,941 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2019-11-20 03:25:42,942 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 03:25:42,942 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 03:25:42,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 03:25:42,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 03:25:42,943 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 03:25:42,943 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 03:25:42,943 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 03:25:42,944 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 03:25:42,944 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 03:25:42,944 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 03:25:42,944 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 03:25:42,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 03:25:42 BoogieIcfgContainer [2019-11-20 03:25:42,951 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 03:25:42,952 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 03:25:42,952 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 03:25:42,952 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 03:25:42,953 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:25:41" (3/4) ... [2019-11-20 03:25:42,956 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 03:25:42,956 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 03:25:42,959 INFO L168 Benchmark]: Toolchain (without parser) took 1971.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -86.5 MB). Peak memory consumption was 59.8 MB. Max. memory is 11.5 GB. [2019-11-20 03:25:42,960 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:25:42,961 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -196.5 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-20 03:25:42,961 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.67 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. [2019-11-20 03:25:42,961 INFO L168 Benchmark]: Boogie Preprocessor took 19.75 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. [2019-11-20 03:25:42,962 INFO L168 Benchmark]: RCFGBuilder took 270.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2019-11-20 03:25:42,963 INFO L168 Benchmark]: BuchiAutomizer took 1296.84 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: 90.5 MB). Peak memory consumption was 90.5 MB. Max. memory is 11.5 GB. [2019-11-20 03:25:42,963 INFO L168 Benchmark]: Witness Printer took 5.00 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. [2019-11-20 03:25:42,967 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 340.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -196.5 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.67 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 19.75 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 270.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1296.84 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: 90.5 MB). Peak memory consumption was 90.5 MB. Max. memory is 11.5 GB. * Witness Printer took 5.00 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x + -1 * y and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 4 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 55ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...