./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c -s /tmp/vcloud-vcloud-master/worker/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/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 7e9d7ee8b64b2fe79b2fb3806ae1ecb1089e2e41 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:58:18,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:18,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:18,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:18,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:18,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:18,050 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:18,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:18,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:18,053 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:18,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:18,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:18,058 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:18,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:18,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:18,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:18,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:18,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:18,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:18,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:18,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:18,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:18,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:18,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:18,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:18,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:18,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:18,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:18,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:18,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:18,080 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:18,080 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:18,080 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:18,081 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:18,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:18,082 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:18,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:18,084 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:18,084 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:18,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:18,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:18,085 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-10-22 08:58:18,108 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:18,108 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:18,109 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:18,109 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:18,109 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:18,109 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:58:18,109 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:58:18,110 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:58:18,110 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:58:18,110 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:58:18,111 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:58:18,111 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:18,111 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:58:18,111 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:18,111 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:18,112 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:58:18,112 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:58:18,112 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:58:18,112 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:58:18,112 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:58:18,112 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:18,112 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:58:18,113 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:18,113 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:18,113 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:58:18,113 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:18,113 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:58:18,113 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:58:18,117 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:58:18,117 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/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/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 -> 7e9d7ee8b64b2fe79b2fb3806ae1ecb1089e2e41 [2019-10-22 08:58:18,146 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:18,156 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:18,158 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:18,160 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:18,160 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:18,160 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c [2019-10-22 08:58:18,206 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/bin/uautomizer/data/3f241ce39/e7a497b959a94d76b841c460a2f14756/FLAG1ef1fc22f [2019-10-22 08:58:18,600 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:18,600 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c [2019-10-22 08:58:18,606 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/bin/uautomizer/data/3f241ce39/e7a497b959a94d76b841c460a2f14756/FLAG1ef1fc22f [2019-10-22 08:58:18,617 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/bin/uautomizer/data/3f241ce39/e7a497b959a94d76b841c460a2f14756 [2019-10-22 08:58:18,621 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:18,623 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:58:18,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:18,626 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:18,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:18,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:18" (1/1) ... [2019-10-22 08:58:18,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@377ddfcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18, skipping insertion in model container [2019-10-22 08:58:18,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:18" (1/1) ... [2019-10-22 08:58:18,641 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:18,655 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:18,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:18,815 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:18,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:18,915 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:18,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18 WrapperNode [2019-10-22 08:58:18,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:18,916 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:18,916 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:58:18,916 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:58:18,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (1/1) ... [2019-10-22 08:58:18,928 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (1/1) ... [2019-10-22 08:58:18,943 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:18,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:18,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:18,944 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:18,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (1/1) ... [2019-10-22 08:58:18,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (1/1) ... [2019-10-22 08:58:18,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (1/1) ... [2019-10-22 08:58:18,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (1/1) ... [2019-10-22 08:58:18,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (1/1) ... [2019-10-22 08:58:18,957 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (1/1) ... [2019-10-22 08:58:18,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (1/1) ... [2019-10-22 08:58:18,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:18,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:18,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:18,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:18,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/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 [2019-10-22 08:58:19,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:19,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:19,135 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:19,135 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-22 08:58:19,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:19 BoogieIcfgContainer [2019-10-22 08:58:19,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:19,137 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:58:19,137 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:58:19,141 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:58:19,141 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:58:19,142 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:58:18" (1/3) ... [2019-10-22 08:58:19,143 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7474407f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:58:19, skipping insertion in model container [2019-10-22 08:58:19,144 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:58:19,145 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (2/3) ... [2019-10-22 08:58:19,145 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7474407f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:58:19, skipping insertion in model container [2019-10-22 08:58:19,145 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:58:19,145 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:19" (3/3) ... [2019-10-22 08:58:19,146 INFO L371 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig1.c [2019-10-22 08:58:19,198 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:58:19,199 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:58:19,199 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:58:19,199 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:19,200 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:19,200 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:58:19,200 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:19,200 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:58:19,215 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-10-22 08:58:19,241 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:58:19,242 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:19,242 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:19,248 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-10-22 08:58:19,248 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:58:19,248 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:58:19,248 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-10-22 08:58:19,249 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:58:19,249 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:19,249 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:19,249 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-10-22 08:58:19,249 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:58:19,256 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 6#L19-2true [2019-10-22 08:58:19,257 INFO L793 eck$LassoCheckResult]: Loop: 6#L19-2true assume !!(main_~x~0 > 0 && main_~y~0 > 0); 8#L19true assume 0 != main_#t~nondet2;havoc main_#t~nondet2;main_~x~0 := main_~x~0 - 1; 6#L19-2true [2019-10-22 08:58:19,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:19,262 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-10-22 08:58:19,269 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:19,269 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522004142] [2019-10-22 08:58:19,270 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:19,270 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:19,270 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:19,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:19,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:19,353 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:19,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:19,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2019-10-22 08:58:19,354 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:19,354 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907626138] [2019-10-22 08:58:19,354 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:19,355 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:19,355 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:19,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:19,365 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:19,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:19,366 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2019-10-22 08:58:19,367 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:19,367 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853993780] [2019-10-22 08:58:19,367 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:19,367 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:19,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:19,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:19,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:19,378 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:19,416 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:58:19,417 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:58:19,417 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:58:19,417 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:58:19,417 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 08:58:19,418 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:19,418 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:58:19,418 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:58:19,418 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration1_Loop [2019-10-22 08:58:19,418 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:58:19,418 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:58:19,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:19,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:19,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:19,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:19,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:19,611 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:58:19,611 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 08:58:19,619 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:19,620 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:19,630 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:19,630 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/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/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) [2019-10-22 08:58:19,638 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:19,639 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:19,643 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:19,643 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/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 08:58:19,655 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:19,655 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/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 [2019-10-22 08:58:19,668 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 08:58:19,670 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:58:19,680 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 08:58:19,682 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:58:19,683 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:58:19,683 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:58:19,683 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:58:19,683 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:58:19,683 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:19,683 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:58:19,683 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:58:19,683 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration1_Loop [2019-10-22 08:58:19,684 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:58:19,684 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:58:19,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:19,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:19,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:19,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:19,717 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:19,779 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:58:19,784 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:58:19,786 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 [2019-10-22 08:58:19,787 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:19,789 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:19,789 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:19,789 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:19,792 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:58:19,793 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:58:19,801 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:19,803 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 [2019-10-22 08:58:19,804 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:19,804 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:19,804 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:19,805 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:19,807 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:58:19,808 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:58:19,819 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:19,820 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 [2019-10-22 08:58:19,821 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:19,825 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:58:19,827 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:19,827 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:19,827 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:19,828 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:58:19,828 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:58:19,836 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 08:58:19,841 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 08:58:19,844 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-10-22 08:58:19,846 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 08:58:19,846 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 08:58:19,847 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 08:58:19,847 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-10-22 08:58:19,850 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 08:58:19,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:19,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:19,886 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:58:19,887 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:19,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:19,897 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:58:19,897 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:19,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:19,922 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 [2019-10-22 08:58:19,924 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2019-10-22 08:58:19,959 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 23 states and 30 transitions. Complement of second has 8 states. [2019-10-22 08:58:19,959 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 [2019-10-22 08:58:19,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 08:58:19,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2019-10-22 08:58:19,963 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2019-10-22 08:58:19,963 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:19,963 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2019-10-22 08:58:19,963 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:19,963 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2019-10-22 08:58:19,964 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:19,964 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2019-10-22 08:58:19,970 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:58:19,973 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2019-10-22 08:58:19,974 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-10-22 08:58:19,974 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-10-22 08:58:19,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-10-22 08:58:19,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 08:58:19,975 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-10-22 08:58:19,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-10-22 08:58:19,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-10-22 08:58:19,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-10-22 08:58:19,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-10-22 08:58:19,998 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-10-22 08:58:19,998 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-10-22 08:58:19,998 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:58:19,998 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-10-22 08:58:19,999 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:58:19,999 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:19,999 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:19,999 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-10-22 08:58:19,999 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:58:19,999 INFO L791 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 68#L19-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 73#L19 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2;main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~y~0 := main_~y~0 - 1; 69#L19-2 [2019-10-22 08:58:19,999 INFO L793 eck$LassoCheckResult]: Loop: 69#L19-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 70#L19 assume 0 != main_#t~nondet2;havoc main_#t~nondet2;main_~x~0 := main_~x~0 - 1; 69#L19-2 [2019-10-22 08:58:20,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:20,000 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2019-10-22 08:58:20,000 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:20,000 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872511221] [2019-10-22 08:58:20,000 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:20,000 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:20,001 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:20,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:20,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:20,010 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:20,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:20,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2019-10-22 08:58:20,011 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:20,011 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721089851] [2019-10-22 08:58:20,011 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:20,011 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:20,011 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:20,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:20,017 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:20,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:20,017 INFO L82 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2019-10-22 08:58:20,017 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:20,017 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109486958] [2019-10-22 08:58:20,018 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:20,018 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:20,018 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:20,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:20,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:20,030 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:20,054 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:58:20,054 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:58:20,054 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:58:20,054 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:58:20,054 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 08:58:20,055 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:20,055 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:58:20,055 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:58:20,055 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration2_Loop [2019-10-22 08:58:20,055 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:58:20,055 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:58:20,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:20,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:20,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:20,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:20,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:20,208 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:58:20,208 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/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 [2019-10-22 08:58:20,216 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:20,216 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:58:20,220 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:20,220 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/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/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) [2019-10-22 08:58:20,227 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:20,227 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/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) [2019-10-22 08:58:20,239 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 08:58:20,239 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:20,251 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 08:58:20,253 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:58:20,253 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:58:20,253 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:58:20,254 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:58:20,254 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:58:20,254 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:20,254 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:58:20,254 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:58:20,255 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration2_Loop [2019-10-22 08:58:20,255 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:58:20,255 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:58:20,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:20,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:20,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:20,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:20,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:20,337 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:58:20,337 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:58:20,338 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 [2019-10-22 08:58:20,338 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:20,338 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:20,339 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:20,339 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:20,340 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:58:20,340 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:58:20,344 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:20,344 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 [2019-10-22 08:58:20,345 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:20,345 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:58:20,345 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:20,345 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:20,345 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:20,346 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:58:20,346 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:58:20,350 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 08:58:20,353 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 08:58:20,353 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-10-22 08:58:20,353 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 08:58:20,354 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 08:58:20,354 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 08:58:20,354 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-10-22 08:58:20,354 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 08:58:20,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:20,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:20,371 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:58:20,371 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:20,375 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:58:20,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:20,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:20,384 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 [2019-10-22 08:58:20,384 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-10-22 08:58:20,393 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 11 states and 16 transitions. Complement of second has 5 states. [2019-10-22 08:58:20,394 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 [2019-10-22 08:58:20,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 08:58:20,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-10-22 08:58:20,395 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2019-10-22 08:58:20,395 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:20,395 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-10-22 08:58:20,396 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:20,396 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2019-10-22 08:58:20,396 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:20,396 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2019-10-22 08:58:20,397 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:58:20,397 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2019-10-22 08:58:20,397 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-10-22 08:58:20,397 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-10-22 08:58:20,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2019-10-22 08:58:20,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 08:58:20,398 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-10-22 08:58:20,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2019-10-22 08:58:20,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-10-22 08:58:20,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-10-22 08:58:20,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2019-10-22 08:58:20,399 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-10-22 08:58:20,400 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-10-22 08:58:20,400 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 08:58:20,400 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2019-10-22 08:58:20,400 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:58:20,400 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:20,400 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:20,401 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2019-10-22 08:58:20,401 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:58:20,401 INFO L791 eck$LassoCheckResult]: Stem: 121#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 122#L19-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 127#L19 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2;main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~y~0 := main_~y~0 - 1; 128#L19-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 129#L19 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2;main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~y~0 := main_~y~0 - 1; 123#L19-2 [2019-10-22 08:58:20,401 INFO L793 eck$LassoCheckResult]: Loop: 123#L19-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 124#L19 assume 0 != main_#t~nondet2;havoc main_#t~nondet2;main_~x~0 := main_~x~0 - 1; 123#L19-2 [2019-10-22 08:58:20,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:20,401 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 2 times [2019-10-22 08:58:20,402 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:20,402 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460780289] [2019-10-22 08:58:20,402 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:20,402 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:20,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:20,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:20,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:20,414 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:20,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:20,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2019-10-22 08:58:20,415 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:20,415 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140362972] [2019-10-22 08:58:20,415 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:20,415 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:20,415 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:20,420 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:20,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:20,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1364196307, now seen corresponding path program 2 times [2019-10-22 08:58:20,421 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:20,421 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280205172] [2019-10-22 08:58:20,421 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:20,422 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:20,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:20,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:20,434 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:20,450 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:58:20,450 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:58:20,450 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:58:20,450 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:58:20,450 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 08:58:20,451 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:20,451 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:58:20,451 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:58:20,451 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration3_Loop [2019-10-22 08:58:20,451 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:58:20,451 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:58:20,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:20,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:20,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:20,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:20,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:20,510 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:58:20,510 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/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 [2019-10-22 08:58:20,523 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:20,523 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:58:20,526 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:20,526 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=7} Honda state: {ULTIMATE.start_main_#t~nondet2=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/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 [2019-10-22 08:58:20,532 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:20,532 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:58:20,540 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:20,540 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/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 [2019-10-22 08:58:20,551 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:20,552 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:58:20,556 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:20,556 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/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 [2019-10-22 08:58:20,561 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:20,561 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:58:20,567 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:20,567 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/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 [2019-10-22 08:58:20,575 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:20,575 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/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) [2019-10-22 08:58:20,582 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 08:58:20,582 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:20,589 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 08:58:20,591 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:58:20,591 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:58:20,591 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:58:20,591 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:58:20,591 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:58:20,591 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:20,591 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:58:20,591 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:58:20,591 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration3_Loop [2019-10-22 08:58:20,592 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:58:20,592 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:58:20,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:20,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:20,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:20,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:20,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:20,652 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:58:20,653 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:58:20,653 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 [2019-10-22 08:58:20,654 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:20,654 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:58:20,654 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:20,654 INFO L203 nArgumentSynthesizer]: 2 loop disjuncts [2019-10-22 08:58:20,654 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:20,655 INFO L400 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-10-22 08:58:20,655 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:58:20,664 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:20,668 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 [2019-10-22 08:58:20,668 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:20,669 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:20,669 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:20,669 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:20,670 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:58:20,670 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:58:20,674 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:20,683 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 [2019-10-22 08:58:20,683 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:20,684 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:58:20,684 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:20,684 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:20,684 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:20,684 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:58:20,684 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:58:20,685 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:20,686 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 [2019-10-22 08:58:20,688 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:20,688 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:20,688 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:20,689 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:20,690 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:58:20,690 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:58:20,692 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:20,697 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 [2019-10-22 08:58:20,698 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:20,698 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:58:20,699 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:20,699 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:20,699 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:20,699 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:58:20,700 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:58:20,706 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 08:58:20,708 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 08:58:20,716 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-10-22 08:58:20,716 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 08:58:20,716 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 08:58:20,717 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 08:58:20,717 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-10-22 08:58:20,717 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 08:58:20,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:20,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:20,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:58:20,744 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:20,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:20,748 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:58:20,749 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:20,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:20,758 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 [2019-10-22 08:58:20,758 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-10-22 08:58:20,770 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 5 states. [2019-10-22 08:58:20,771 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 [2019-10-22 08:58:20,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 08:58:20,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-10-22 08:58:20,772 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-10-22 08:58:20,772 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:20,772 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-10-22 08:58:20,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:20,793 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:58:20,794 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:20,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:20,798 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:58:20,798 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:20,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:20,807 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2019-10-22 08:58:20,807 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-10-22 08:58:20,823 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 5 states. [2019-10-22 08:58:20,825 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 [2019-10-22 08:58:20,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 08:58:20,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-10-22 08:58:20,825 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-10-22 08:58:20,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:20,826 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-10-22 08:58:20,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:20,847 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:58:20,848 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:20,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:20,852 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:58:20,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:20,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:20,862 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-10-22 08:58:20,863 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-10-22 08:58:20,876 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 15 states and 23 transitions. Complement of second has 4 states. [2019-10-22 08:58:20,877 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 [2019-10-22 08:58:20,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 08:58:20,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-10-22 08:58:20,878 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2019-10-22 08:58:20,878 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:20,878 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2019-10-22 08:58:20,878 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:20,878 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2019-10-22 08:58:20,878 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:20,879 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 23 transitions. [2019-10-22 08:58:20,879 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-10-22 08:58:20,880 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 19 transitions. [2019-10-22 08:58:20,880 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-10-22 08:58:20,880 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-10-22 08:58:20,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2019-10-22 08:58:20,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 08:58:20,880 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2019-10-22 08:58:20,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2019-10-22 08:58:20,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2019-10-22 08:58:20,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-10-22 08:58:20,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2019-10-22 08:58:20,882 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-10-22 08:58:20,882 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-10-22 08:58:20,882 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-10-22 08:58:20,882 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2019-10-22 08:58:20,885 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-10-22 08:58:20,886 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:20,886 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:20,886 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-10-22 08:58:20,886 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:58:20,886 INFO L791 eck$LassoCheckResult]: Stem: 268#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 269#L19-2 [2019-10-22 08:58:20,886 INFO L793 eck$LassoCheckResult]: Loop: 269#L19-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 271#L19 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2;main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~y~0 := main_~y~0 - 1; 269#L19-2 [2019-10-22 08:58:20,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:20,887 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2019-10-22 08:58:20,887 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:20,887 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221837806] [2019-10-22 08:58:20,887 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:20,887 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:20,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:20,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:20,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:20,898 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:20,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:20,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1286, now seen corresponding path program 1 times [2019-10-22 08:58:20,899 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:20,899 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070895214] [2019-10-22 08:58:20,899 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:20,899 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:20,899 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:20,907 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:20,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:20,910 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 3 times [2019-10-22 08:58:20,910 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:20,910 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25863221] [2019-10-22 08:58:20,911 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:20,911 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:20,911 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:20,921 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:20,939 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:58:20,939 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:58:20,939 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:58:20,939 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:58:20,939 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 08:58:20,939 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:20,939 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:58:20,939 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:58:20,940 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration4_Loop [2019-10-22 08:58:20,940 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:58:20,940 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:58:20,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:20,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:20,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:20,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:20,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:21,007 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:58:21,007 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/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) [2019-10-22 08:58:21,016 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:21,016 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:21,023 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:21,023 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:21,030 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:21,031 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:58:21,035 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:21,035 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 08:58:21,043 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:21,043 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd88bfb3-e804-4653-962a-a29c9bcf6e8d/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 08:58:21,057 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 08:58:21,057 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:21,063 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 08:58:21,065 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:58:21,065 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:58:21,065 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:58:21,065 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:58:21,065 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:58:21,065 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:21,065 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:58:21,065 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:58:21,065 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration4_Loop [2019-10-22 08:58:21,065 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:58:21,066 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:58:21,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:21,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:21,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:21,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:21,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:21,147 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:58:21,147 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:58:21,148 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 [2019-10-22 08:58:21,148 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:21,148 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:58:21,149 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:21,149 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:21,149 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:21,149 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:58:21,149 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:58:21,150 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:21,154 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 [2019-10-22 08:58:21,155 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:21,155 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:21,155 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:21,155 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:21,158 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:58:21,158 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:58:21,162 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:21,162 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 [2019-10-22 08:58:21,168 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:21,168 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:58:21,168 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:21,168 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:21,168 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:21,169 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:58:21,169 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:58:21,171 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 08:58:21,173 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 08:58:21,173 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-10-22 08:58:21,173 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 08:58:21,174 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 08:58:21,174 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 08:58:21,174 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-10-22 08:58:21,179 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 08:58:21,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:21,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:21,195 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:58:21,195 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:21,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:21,203 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:58:21,203 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:21,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:21,212 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 [2019-10-22 08:58:21,212 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2019-10-22 08:58:21,220 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 11 states and 17 transitions. Complement of second has 4 states. [2019-10-22 08:58:21,221 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 [2019-10-22 08:58:21,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 08:58:21,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-10-22 08:58:21,221 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 1 letters. Loop has 2 letters. [2019-10-22 08:58:21,221 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:21,222 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2019-10-22 08:58:21,222 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:21,222 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 1 letters. Loop has 4 letters. [2019-10-22 08:58:21,222 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:21,222 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 17 transitions. [2019-10-22 08:58:21,223 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:58:21,223 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2019-10-22 08:58:21,223 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 08:58:21,223 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 08:58:21,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 08:58:21,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:58:21,224 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:58:21,224 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:58:21,224 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:58:21,224 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-10-22 08:58:21,224 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:58:21,224 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:58:21,224 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 08:58:21,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:58:21 BoogieIcfgContainer [2019-10-22 08:58:21,230 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:58:21,231 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:58:21,231 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:58:21,231 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:58:21,231 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:19" (3/4) ... [2019-10-22 08:58:21,234 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:58:21,234 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:58:21,236 INFO L168 Benchmark]: Toolchain (without parser) took 2613.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 948.5 MB in the beginning and 802.9 MB in the end (delta: 145.6 MB). Peak memory consumption was 274.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:21,236 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:21,237 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 948.5 MB in the beginning and 1.1 GB in the end (delta: -169.8 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:21,237 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.14 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. [2019-10-22 08:58:21,238 INFO L168 Benchmark]: Boogie Preprocessor took 15.86 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. [2019-10-22 08:58:21,238 INFO L168 Benchmark]: RCFGBuilder took 177.23 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: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:21,239 INFO L168 Benchmark]: BuchiAutomizer took 2093.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 802.9 MB in the end (delta: 299.6 MB). Peak memory consumption was 299.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:21,239 INFO L168 Benchmark]: Witness Printer took 3.80 ms. Allocated memory is still 1.2 GB. Free memory is still 802.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:21,241 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 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 291.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 948.5 MB in the beginning and 1.1 GB in the end (delta: -169.8 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.14 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 15.86 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 177.23 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: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2093.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 802.9 MB in the end (delta: 299.6 MB). Peak memory consumption was 299.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.80 ms. Allocated memory is still 1.2 GB. Free memory is still 802.9 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 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function x and consists of 3 locations. One deterministic module has affine ranking function y and consists of 3 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 27 SDtfs, 19 SDslu, 7 SDs, 0 SdLazy, 35 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax168 hnf100 lsp33 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 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...