./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.17.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d2305524-ee76-4faa-9f28-d1c7449aa932/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d2305524-ee76-4faa-9f28-d1c7449aa932/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d2305524-ee76-4faa-9f28-d1c7449aa932/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d2305524-ee76-4faa-9f28-d1c7449aa932/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.17.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d2305524-ee76-4faa-9f28-d1c7449aa932/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d2305524-ee76-4faa-9f28-d1c7449aa932/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 4c1132cbc7f5ece5e256e1f8dfde86f3ca50a733 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 10:50:09,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:50:09,677 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:50:09,685 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:50:09,685 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:50:09,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:50:09,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:50:09,688 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:50:09,689 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:50:09,690 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:50:09,690 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:50:09,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:50:09,691 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:50:09,692 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:50:09,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:50:09,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:50:09,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:50:09,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:50:09,696 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:50:09,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:50:09,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:50:09,699 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:50:09,700 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:50:09,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:50:09,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:50:09,702 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:50:09,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:50:09,703 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:50:09,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:50:09,704 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:50:09,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:50:09,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:50:09,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:50:09,705 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:50:09,706 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:50:09,706 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:50:09,706 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:50:09,707 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:50:09,707 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:50:09,707 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:50:09,708 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:50:09,708 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d2305524-ee76-4faa-9f28-d1c7449aa932/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 10:50:09,718 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:50:09,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:50:09,719 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:50:09,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:50:09,719 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 10:50:09,720 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 10:50:09,720 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 10:50:09,720 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 10:50:09,720 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 10:50:09,720 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 10:50:09,720 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 10:50:09,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:50:09,720 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 10:50:09,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:50:09,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:50:09,721 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 10:50:09,721 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 10:50:09,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 10:50:09,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:50:09,721 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 10:50:09,721 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:50:09,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 10:50:09,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:50:09,722 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:50:09,722 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 10:50:09,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:50:09,722 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 10:50:09,722 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:50:09,722 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 10:50:09,723 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 10:50:09,723 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_d2305524-ee76-4faa-9f28-d1c7449aa932/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 -> 4c1132cbc7f5ece5e256e1f8dfde86f3ca50a733 [2019-12-07 10:50:09,821 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:50:09,830 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:50:09,832 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:50:09,833 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:50:09,833 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:50:09,834 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d2305524-ee76-4faa-9f28-d1c7449aa932/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/b.17.c [2019-12-07 10:50:09,877 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d2305524-ee76-4faa-9f28-d1c7449aa932/bin/uautomizer/data/d6288d5a7/d5cd688b6901456b842c81be9225883c/FLAGdc22800fd [2019-12-07 10:50:10,260 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:50:10,260 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d2305524-ee76-4faa-9f28-d1c7449aa932/sv-benchmarks/c/termination-restricted-15/b.17.c [2019-12-07 10:50:10,264 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d2305524-ee76-4faa-9f28-d1c7449aa932/bin/uautomizer/data/d6288d5a7/d5cd688b6901456b842c81be9225883c/FLAGdc22800fd [2019-12-07 10:50:10,646 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d2305524-ee76-4faa-9f28-d1c7449aa932/bin/uautomizer/data/d6288d5a7/d5cd688b6901456b842c81be9225883c [2019-12-07 10:50:10,649 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:50:10,650 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:50:10,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:50:10,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:50:10,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:50:10,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:50:10" (1/1) ... [2019-12-07 10:50:10,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62201ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:50:10, skipping insertion in model container [2019-12-07 10:50:10,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:50:10" (1/1) ... [2019-12-07 10:50:10,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:50:10,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:50:10,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:50:10,766 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:50:10,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:50:10,814 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:50:10,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:50:10 WrapperNode [2019-12-07 10:50:10,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:50:10,815 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:50:10,815 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:50:10,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:50:10,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:50:10" (1/1) ... [2019-12-07 10:50:10,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:50:10" (1/1) ... [2019-12-07 10:50:10,835 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:50:10,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:50:10,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:50:10,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:50:10,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:50:10" (1/1) ... [2019-12-07 10:50:10,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:50:10" (1/1) ... [2019-12-07 10:50:10,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:50:10" (1/1) ... [2019-12-07 10:50:10,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:50:10" (1/1) ... [2019-12-07 10:50:10,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:50:10" (1/1) ... [2019-12-07 10:50:10,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:50:10" (1/1) ... [2019-12-07 10:50:10,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:50:10" (1/1) ... [2019-12-07 10:50:10,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:50:10,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:50:10,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:50:10,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:50:10,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:50:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2305524-ee76-4faa-9f28-d1c7449aa932/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 [2019-12-07 10:50:10,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:50:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:50:10,970 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:50:10,970 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 10:50:10,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:50:10 BoogieIcfgContainer [2019-12-07 10:50:10,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:50:10,971 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 10:50:10,972 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 10:50:10,974 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 10:50:10,974 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:50:10,975 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 10:50:10" (1/3) ... [2019-12-07 10:50:10,975 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@789bb650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 10:50:10, skipping insertion in model container [2019-12-07 10:50:10,975 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:50:10,975 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:50:10" (2/3) ... [2019-12-07 10:50:10,976 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@789bb650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 10:50:10, skipping insertion in model container [2019-12-07 10:50:10,976 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:50:10,976 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:50:10" (3/3) ... [2019-12-07 10:50:10,977 INFO L371 chiAutomizerObserver]: Analyzing ICFG b.17.c [2019-12-07 10:50:11,007 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 10:50:11,007 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 10:50:11,007 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 10:50:11,007 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:50:11,007 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:50:11,007 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 10:50:11,007 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:50:11,007 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 10:50:11,016 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-12-07 10:50:11,028 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 10:50:11,028 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:50:11,028 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:50:11,032 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 10:50:11,032 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 10:50:11,033 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 10:50:11,033 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-12-07 10:50:11,033 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 10:50:11,033 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:50:11,033 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:50:11,034 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 10:50:11,034 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 10:50:11,038 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 3#L12-2true [2019-12-07 10:50:11,039 INFO L796 eck$LassoCheckResult]: Loop: 3#L12-2true assume !!(main_~x~0 > main_~z~0); 6#L13-2true assume !(main_~y~0 > main_~z~0); 4#L13-3true main_~x~0 := main_~x~0 - 1; 3#L12-2true [2019-12-07 10:50:11,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:50:11,042 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-12-07 10:50:11,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:50:11,048 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470910642] [2019-12-07 10:50:11,048 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:50:11,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:50:11,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:50:11,115 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:50:11,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:50:11,116 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2019-12-07 10:50:11,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:50:11,116 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774869292] [2019-12-07 10:50:11,117 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:50:11,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:50:11,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:50:11,126 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:50:11,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:50:11,128 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2019-12-07 10:50:11,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:50:11,128 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438539317] [2019-12-07 10:50:11,128 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:50:11,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:50:11,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:50:11,138 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:50:11,169 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:50:11,170 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:50:11,170 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:50:11,170 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:50:11,170 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 10:50:11,170 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:50:11,170 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:50:11,170 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:50:11,170 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.17.c_Iteration1_Loop [2019-12-07 10:50:11,171 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:50:11,171 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:50:11,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:50:11,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:50:11,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:50:11,248 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:50:11,249 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2305524-ee76-4faa-9f28-d1c7449aa932/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 [2019-12-07 10:50:11,253 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 10:50:11,253 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 10:50:11,260 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 10:50:11,260 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_d2305524-ee76-4faa-9f28-d1c7449aa932/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 [2019-12-07 10:50:11,264 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 10:50:11,264 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 10:50:11,267 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 10:50:11,267 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_d2305524-ee76-4faa-9f28-d1c7449aa932/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 [2019-12-07 10:50:11,272 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 10:50:11,272 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2305524-ee76-4faa-9f28-d1c7449aa932/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 [2019-12-07 10:50:11,279 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 10:50:11,279 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 10:50:11,509 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 10:50:11,511 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:50:11,511 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:50:11,511 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:50:11,511 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:50:11,511 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 10:50:11,511 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:50:11,511 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:50:11,512 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:50:11,512 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.17.c_Iteration1_Loop [2019-12-07 10:50:11,512 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:50:11,512 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:50:11,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:50:11,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:50:11,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:50:11,556 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:50:11,559 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2305524-ee76-4faa-9f28-d1c7449aa932/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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:50:11,563 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 [2019-12-07 10:50:11,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:50:11,565 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:50:11,565 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:50:11,565 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:50:11,569 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:50:11,569 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:50:11,573 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2305524-ee76-4faa-9f28-d1c7449aa932/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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:50:11,577 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 [2019-12-07 10:50:11,579 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:50:11,579 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:50:11,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:50:11,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:50:11,583 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:50:11,583 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:50:11,587 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2305524-ee76-4faa-9f28-d1c7449aa932/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) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:50:11,591 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 [2019-12-07 10:50:11,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:50:11,592 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:50:11,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:50:11,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:50:11,593 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:50:11,595 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:50:11,595 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:50:11,597 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 10:50:11,602 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-12-07 10:50:11,602 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2305524-ee76-4faa-9f28-d1c7449aa932/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 [2019-12-07 10:50:11,606 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 10:50:11,606 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 10:50:11,606 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 10:50:11,607 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2019-12-07 10:50:11,610 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 10:50:11,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:50:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:50:11,635 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:50:11,636 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:50:11,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:50:11,642 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:50:11,642 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:50:11,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:50:11,662 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 10:50:11,663 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2019-12-07 10:50:11,697 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 35 transitions. Complement of second has 7 states. [2019-12-07 10:50:11,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 10:50:11,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 10:50:11,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2019-12-07 10:50:11,700 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2019-12-07 10:50:11,700 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:50:11,701 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2019-12-07 10:50:11,701 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:50:11,701 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2019-12-07 10:50:11,701 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:50:11,701 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2019-12-07 10:50:11,703 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 10:50:11,706 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2019-12-07 10:50:11,706 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2019-12-07 10:50:11,706 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-12-07 10:50:11,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-12-07 10:50:11,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 10:50:11,707 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-12-07 10:50:11,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-12-07 10:50:11,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2019-12-07 10:50:11,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-12-07 10:50:11,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2019-12-07 10:50:11,724 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2019-12-07 10:50:11,724 INFO L591 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2019-12-07 10:50:11,724 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 10:50:11,724 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2019-12-07 10:50:11,724 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 10:50:11,724 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:50:11,724 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:50:11,725 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 10:50:11,725 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 10:50:11,725 INFO L794 eck$LassoCheckResult]: Stem: 75#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 70#L12-2 assume !!(main_~x~0 > main_~z~0); 72#L13-2 [2019-12-07 10:50:11,725 INFO L796 eck$LassoCheckResult]: Loop: 72#L13-2 assume !!(main_~y~0 > main_~z~0);main_~y~0 := main_~y~0 - 1; 72#L13-2 [2019-12-07 10:50:11,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:50:11,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-12-07 10:50:11,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:50:11,725 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165544782] [2019-12-07 10:50:11,725 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:50:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:50:11,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:50:11,731 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:50:11,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:50:11,731 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2019-12-07 10:50:11,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:50:11,732 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042362733] [2019-12-07 10:50:11,732 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:50:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:50:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:50:11,736 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:50:11,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:50:11,736 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2019-12-07 10:50:11,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:50:11,736 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359577697] [2019-12-07 10:50:11,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:50:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:50:11,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:50:11,743 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:50:11,751 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:50:11,751 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:50:11,751 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:50:11,751 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:50:11,751 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 10:50:11,751 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:50:11,751 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:50:11,752 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:50:11,752 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.17.c_Iteration2_Loop [2019-12-07 10:50:11,752 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:50:11,752 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:50:11,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:50:11,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:50:11,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:50:11,787 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:50:11,787 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2305524-ee76-4faa-9f28-d1c7449aa932/bin/uautomizer/z3 Starting monitored process 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:50:11,790 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 10:50:11,790 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 10:50:11,793 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 10:50:11,793 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2305524-ee76-4faa-9f28-d1c7449aa932/bin/uautomizer/z3 Starting monitored process 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:50:11,796 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 10:50:11,796 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2305524-ee76-4faa-9f28-d1c7449aa932/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:50:11,803 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 10:50:11,803 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 10:50:11,975 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 10:50:11,976 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:50:11,977 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:50:11,977 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:50:11,977 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:50:11,977 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 10:50:11,977 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:50:11,977 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:50:11,977 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:50:11,977 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.17.c_Iteration2_Loop [2019-12-07 10:50:11,977 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:50:11,978 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:50:11,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:50:11,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:50:11,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:50:12,009 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:50:12,009 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2305524-ee76-4faa-9f28-d1c7449aa932/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:50:12,012 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 [2019-12-07 10:50:12,014 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:50:12,014 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:50:12,014 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:50:12,014 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:50:12,016 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:50:12,016 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:50:12,020 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2305524-ee76-4faa-9f28-d1c7449aa932/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:50:12,024 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 [2019-12-07 10:50:12,025 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:50:12,025 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:50:12,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:50:12,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:50:12,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:50:12,027 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:50:12,027 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:50:12,029 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 10:50:12,034 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 10:50:12,034 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2305524-ee76-4faa-9f28-d1c7449aa932/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:50:12,041 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 10:50:12,041 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 10:50:12,042 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 10:50:12,042 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 [] [2019-12-07 10:50:12,043 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 10:50:12,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:50:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:50:12,058 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:50:12,059 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:50:12,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:50:12,062 WARN L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:50:12,062 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:50:12,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:50:12,063 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 [2019-12-07 10:50:12,063 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand 2 states. [2019-12-07 10:50:12,070 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 13 states and 18 transitions. Complement of second has 4 states. [2019-12-07 10:50:12,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 10:50:12,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-12-07 10:50:12,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2019-12-07 10:50:12,071 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 1 letters. [2019-12-07 10:50:12,071 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:50:12,071 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 1 letters. [2019-12-07 10:50:12,071 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:50:12,071 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2019-12-07 10:50:12,071 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:50:12,071 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2019-12-07 10:50:12,072 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 10:50:12,072 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2019-12-07 10:50:12,072 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 10:50:12,072 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 10:50:12,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 10:50:12,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 10:50:12,072 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:50:12,072 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:50:12,073 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:50:12,073 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 10:50:12,073 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 10:50:12,073 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 10:50:12,073 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 10:50:12,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 10:50:12 BoogieIcfgContainer [2019-12-07 10:50:12,078 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 10:50:12,078 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:50:12,078 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:50:12,078 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:50:12,078 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:50:10" (3/4) ... [2019-12-07 10:50:12,082 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 10:50:12,082 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:50:12,084 INFO L168 Benchmark]: Toolchain (without parser) took 1433.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 942.5 MB in the beginning and 965.7 MB in the end (delta: -23.2 MB). Peak memory consumption was 114.6 MB. Max. memory is 11.5 GB. [2019-12-07 10:50:12,084 INFO L168 Benchmark]: CDTParser took 0.14 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. [2019-12-07 10:50:12,085 INFO L168 Benchmark]: CACSL2BoogieTranslator took 164.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -190.3 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-12-07 10:50:12,085 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.92 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. [2019-12-07 10:50:12,086 INFO L168 Benchmark]: Boogie Preprocessor took 11.45 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. [2019-12-07 10:50:12,086 INFO L168 Benchmark]: RCFGBuilder took 124.34 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: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-12-07 10:50:12,087 INFO L168 Benchmark]: BuchiAutomizer took 1106.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 965.7 MB in the end (delta: 148.6 MB). Peak memory consumption was 148.6 MB. Max. memory is 11.5 GB. [2019-12-07 10:50:12,087 INFO L168 Benchmark]: Witness Printer took 4.01 ms. Allocated memory is still 1.2 GB. Free memory is still 965.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:50:12,090 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 164.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -190.3 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.92 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 11.45 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 124.34 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: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1106.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 965.7 MB in the end (delta: 148.6 MB). Peak memory consumption was 148.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.01 ms. Allocated memory is still 1.2 GB. Free memory is still 965.7 MB. 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 (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x + -1 * z and consists of 5 locations. One deterministic module has affine ranking function y + -1 * z and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 7 SDtfs, 13 SDslu, 7 SDs, 0 SdLazy, 15 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax202 hnf98 lsp48 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp100 dnf100 smp100 tf112 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...