./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3c9472ee-5f5c-4daf-8e2c-32669f4cc8c0/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3c9472ee-5f5c-4daf-8e2c-32669f4cc8c0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3c9472ee-5f5c-4daf-8e2c-32669f4cc8c0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3c9472ee-5f5c-4daf-8e2c-32669f4cc8c0/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3c9472ee-5f5c-4daf-8e2c-32669f4cc8c0/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3c9472ee-5f5c-4daf-8e2c-32669f4cc8c0/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 0a8f096dedbbe798ef2fe808d4231fc7a503c17f .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-16 00:16:39,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:16:39,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:16:39,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:16:39,861 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:16:39,863 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:16:39,865 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:16:39,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:16:39,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:16:39,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:16:39,871 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:16:39,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:16:39,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:16:39,874 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:16:39,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:16:39,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:16:39,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:16:39,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:16:39,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:16:39,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:16:39,896 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:16:39,898 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:16:39,901 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:16:39,902 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:16:39,906 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:16:39,906 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:16:39,907 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:16:39,908 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:16:39,909 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:16:39,911 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:16:39,911 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:16:39,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:16:39,912 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:16:39,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:16:39,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:16:39,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:16:39,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:16:39,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:16:39,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:16:39,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:16:39,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:16:39,920 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3c9472ee-5f5c-4daf-8e2c-32669f4cc8c0/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-16 00:16:39,940 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:16:39,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:16:39,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:16:39,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:16:39,944 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:16:39,944 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-16 00:16:39,944 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-16 00:16:39,944 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-16 00:16:39,945 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-16 00:16:39,945 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-16 00:16:39,946 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-16 00:16:39,946 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:16:39,947 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-16 00:16:39,947 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:16:39,947 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:16:39,947 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-16 00:16:39,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-16 00:16:39,948 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-16 00:16:39,948 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:16:39,949 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-16 00:16:39,949 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:16:39,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-16 00:16:39,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:16:39,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:16:39,950 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-16 00:16:39,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:16:39,951 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:16:39,951 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-16 00:16:39,954 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-16 00:16:39,954 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3c9472ee-5f5c-4daf-8e2c-32669f4cc8c0/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 -> 0a8f096dedbbe798ef2fe808d4231fc7a503c17f [2019-11-16 00:16:40,013 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:16:40,023 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:16:40,026 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:16:40,029 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:16:40,029 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:16:40,031 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3c9472ee-5f5c-4daf-8e2c-32669f4cc8c0/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2019-11-16 00:16:40,091 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3c9472ee-5f5c-4daf-8e2c-32669f4cc8c0/bin/uautomizer/data/a87a8b7b9/a9c49d6bf19a4be7b2fc08bb3705b94c/FLAGa6afe5e0c [2019-11-16 00:16:40,569 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:16:40,570 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3c9472ee-5f5c-4daf-8e2c-32669f4cc8c0/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2019-11-16 00:16:40,577 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3c9472ee-5f5c-4daf-8e2c-32669f4cc8c0/bin/uautomizer/data/a87a8b7b9/a9c49d6bf19a4be7b2fc08bb3705b94c/FLAGa6afe5e0c [2019-11-16 00:16:40,989 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3c9472ee-5f5c-4daf-8e2c-32669f4cc8c0/bin/uautomizer/data/a87a8b7b9/a9c49d6bf19a4be7b2fc08bb3705b94c [2019-11-16 00:16:40,992 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:16:40,994 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:16:41,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:16:41,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:16:41,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:16:41,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:16:40" (1/1) ... [2019-11-16 00:16:41,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@182b198d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:41, skipping insertion in model container [2019-11-16 00:16:41,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:16:40" (1/1) ... [2019-11-16 00:16:41,018 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:16:41,031 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:16:41,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:16:41,305 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:16:41,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:16:41,354 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:16:41,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:41 WrapperNode [2019-11-16 00:16:41,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:16:41,356 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:16:41,357 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:16:41,357 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:16:41,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:41" (1/1) ... [2019-11-16 00:16:41,374 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:41" (1/1) ... [2019-11-16 00:16:41,400 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:16:41,400 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:16:41,400 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:16:41,400 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:16:41,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:41" (1/1) ... [2019-11-16 00:16:41,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:41" (1/1) ... [2019-11-16 00:16:41,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:41" (1/1) ... [2019-11-16 00:16:41,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:41" (1/1) ... [2019-11-16 00:16:41,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:41" (1/1) ... [2019-11-16 00:16:41,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:41" (1/1) ... [2019-11-16 00:16:41,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:41" (1/1) ... [2019-11-16 00:16:41,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:16:41,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:16:41,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:16:41,423 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:16:41,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c9472ee-5f5c-4daf-8e2c-32669f4cc8c0/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:16:41,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:16:41,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:16:41,627 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:16:41,627 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-16 00:16:41,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:16:41 BoogieIcfgContainer [2019-11-16 00:16:41,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:16:41,629 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-16 00:16:41,629 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-16 00:16:41,633 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-16 00:16:41,634 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-16 00:16:41,634 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 12:16:40" (1/3) ... [2019-11-16 00:16:41,635 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b55c390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:16:41, skipping insertion in model container [2019-11-16 00:16:41,635 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-16 00:16:41,635 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:41" (2/3) ... [2019-11-16 00:16:41,636 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b55c390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:16:41, skipping insertion in model container [2019-11-16 00:16:41,636 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-16 00:16:41,636 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:16:41" (3/3) ... [2019-11-16 00:16:41,638 INFO L371 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2019-11-16 00:16:41,687 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-16 00:16:41,688 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-16 00:16:41,688 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-16 00:16:41,688 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:16:41,688 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:16:41,688 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-16 00:16:41,688 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:16:41,689 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-16 00:16:41,703 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-16 00:16:41,725 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-16 00:16:41,725 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-16 00:16:41,725 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-16 00:16:41,732 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-16 00:16:41,732 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-16 00:16:41,733 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-16 00:16:41,733 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-16 00:16:41,734 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-16 00:16:41,734 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-16 00:16:41,734 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-16 00:16:41,734 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-16 00:16:41,735 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-16 00:16:41,743 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~j~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~N~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~i~0 := main_~N~0; 6#L19-2true [2019-11-16 00:16:41,744 INFO L793 eck$LassoCheckResult]: Loop: 6#L19-2true assume !!(main_~i~0 > 0); 8#L19true assume main_~j~0 > 0;main_~j~0 := main_~j~0 - 1; 6#L19-2true [2019-11-16 00:16:41,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:16:41,751 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-16 00:16:41,761 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:16:41,762 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910906683] [2019-11-16 00:16:41,762 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:16:41,762 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:16:41,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:16:41,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:16:41,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:16:41,873 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:16:41,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:16:41,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2019-11-16 00:16:41,875 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:16:41,875 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68974412] [2019-11-16 00:16:41,875 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:16:41,875 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:16:41,875 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:16:41,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:16:41,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:16:41,887 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:16:41,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:16:41,889 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2019-11-16 00:16:41,889 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:16:41,889 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410892423] [2019-11-16 00:16:41,890 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:16:41,890 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:16:41,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:16:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:16:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:16:41,903 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:16:41,962 INFO L210 LassoAnalysis]: Preferences: [2019-11-16 00:16:41,962 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-16 00:16:41,962 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-16 00:16:41,963 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-16 00:16:41,963 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-16 00:16:41,963 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:16:41,963 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-16 00:16:41,963 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-16 00:16:41,964 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration1_Loop [2019-11-16 00:16:41,964 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-16 00:16:41,964 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-16 00:16:41,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:41,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:42,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:42,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:42,218 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-16 00:16:42,219 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c9472ee-5f5c-4daf-8e2c-32669f4cc8c0/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-16 00:16:42,226 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-16 00:16:42,227 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:16:42,236 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-16 00:16:42,236 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c9472ee-5f5c-4daf-8e2c-32669f4cc8c0/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:16:42,247 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-16 00:16:42,248 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-16 00:16:42,261 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-16 00:16:42,262 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c9472ee-5f5c-4daf-8e2c-32669f4cc8c0/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-16 00:16:42,279 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-16 00:16:42,279 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c9472ee-5f5c-4daf-8e2c-32669f4cc8c0/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:16:42,308 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-16 00:16:42,308 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-16 00:16:42,328 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-16 00:16:42,330 INFO L210 LassoAnalysis]: Preferences: [2019-11-16 00:16:42,330 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-16 00:16:42,330 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-16 00:16:42,331 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-16 00:16:42,331 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-16 00:16:42,331 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:16:42,331 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-16 00:16:42,331 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-16 00:16:42,331 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration1_Loop [2019-11-16 00:16:42,331 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-16 00:16:42,331 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-16 00:16:42,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:42,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:42,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:42,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:42,446 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-16 00:16:42,454 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-16 00:16:42,456 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-16 00:16:42,458 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:16:42,459 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:16:42,466 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:16:42,467 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:16:42,471 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-16 00:16:42,472 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-16 00:16:42,491 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:16:42,491 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-16 00:16:42,492 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:16:42,492 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:16:42,493 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:16:42,493 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:16:42,493 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:16:42,494 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:16:42,494 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:16:42,520 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-16 00:16:42,526 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-16 00:16:42,526 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-16 00:16:42,528 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-16 00:16:42,529 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-16 00:16:42,529 INFO L510 LassoAnalysis]: Proved termination. [2019-11-16 00:16:42,529 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2019-11-16 00:16:42,532 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-16 00:16:42,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:16:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:16:42,577 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-16 00:16:42,578 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:16:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:16:42,588 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-16 00:16:42,589 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:16:42,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:16:42,609 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-16 00:16:42,610 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2019-11-16 00:16:42,645 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 23 states and 30 transitions. Complement of second has 6 states. [2019-11-16 00:16:42,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-16 00:16:42,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-16 00:16:42,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2019-11-16 00:16:42,650 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2019-11-16 00:16:42,651 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:16:42,651 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-16 00:16:42,651 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:16:42,651 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2019-11-16 00:16:42,651 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:16:42,652 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2019-11-16 00:16:42,656 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-16 00:16:42,659 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2019-11-16 00:16:42,661 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-11-16 00:16:42,661 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-16 00:16:42,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-11-16 00:16:42,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-16 00:16:42,662 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-16 00:16:42,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-11-16 00:16:42,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-11-16 00:16:42,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-16 00:16:42,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-11-16 00:16:42,685 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-16 00:16:42,685 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-16 00:16:42,686 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-16 00:16:42,686 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-11-16 00:16:42,686 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-16 00:16:42,686 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-16 00:16:42,687 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-16 00:16:42,687 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-16 00:16:42,687 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-16 00:16:42,687 INFO L791 eck$LassoCheckResult]: Stem: 63#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~j~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~N~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~i~0 := main_~N~0; 64#L19-2 assume !!(main_~i~0 > 0); 69#L19 assume !(main_~j~0 > 0);main_~j~0 := main_~N~0;main_~i~0 := main_~i~0 - 1; 65#L19-2 [2019-11-16 00:16:42,687 INFO L793 eck$LassoCheckResult]: Loop: 65#L19-2 assume !!(main_~i~0 > 0); 66#L19 assume main_~j~0 > 0;main_~j~0 := main_~j~0 - 1; 65#L19-2 [2019-11-16 00:16:42,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:16:42,688 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2019-11-16 00:16:42,688 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:16:42,688 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653208201] [2019-11-16 00:16:42,688 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:16:42,689 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:16:42,689 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:16:42,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:16:42,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:16:42,700 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:16:42,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:16:42,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2019-11-16 00:16:42,701 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:16:42,701 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463687598] [2019-11-16 00:16:42,702 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:16:42,702 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:16:42,702 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:16:42,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:16:42,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:16:42,710 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:16:42,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:16:42,711 INFO L82 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2019-11-16 00:16:42,711 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:16:42,711 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816397170] [2019-11-16 00:16:42,711 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:16:42,711 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:16:42,712 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:16:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:16:42,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:16:42,735 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:16:42,755 INFO L210 LassoAnalysis]: Preferences: [2019-11-16 00:16:42,755 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-16 00:16:42,755 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-16 00:16:42,755 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-16 00:16:42,756 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-16 00:16:42,756 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:16:42,756 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-16 00:16:42,756 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-16 00:16:42,756 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration2_Loop [2019-11-16 00:16:42,756 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-16 00:16:42,756 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-16 00:16:42,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:42,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:42,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:42,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:42,829 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-16 00:16:42,829 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c9472ee-5f5c-4daf-8e2c-32669f4cc8c0/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 [2019-11-16 00:16:42,834 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-16 00:16:42,834 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-16 00:16:42,841 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-16 00:16:42,842 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c9472ee-5f5c-4daf-8e2c-32669f4cc8c0/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:16:42,853 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-16 00:16:42,853 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c9472ee-5f5c-4daf-8e2c-32669f4cc8c0/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-16 00:16:42,863 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-16 00:16:42,863 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 [2019-11-16 00:16:42,875 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-16 00:16:42,878 INFO L210 LassoAnalysis]: Preferences: [2019-11-16 00:16:42,878 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-16 00:16:42,878 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-16 00:16:42,878 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-16 00:16:42,878 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-16 00:16:42,878 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:16:42,879 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-16 00:16:42,879 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-16 00:16:42,879 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration2_Loop [2019-11-16 00:16:42,879 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-16 00:16:42,879 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-16 00:16:42,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:42,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:42,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:42,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:43,008 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-16 00:16:43,009 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-16 00:16:43,009 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-16 00:16:43,010 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:16:43,010 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:16:43,011 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:16:43,011 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:16:43,011 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:16:43,012 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:16:43,012 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:16:43,025 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-16 00:16:43,035 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-16 00:16:43,043 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-16 00:16:43,044 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-16 00:16:43,044 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-16 00:16:43,045 INFO L510 LassoAnalysis]: Proved termination. [2019-11-16 00:16:43,045 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2019-11-16 00:16:43,046 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-16 00:16:43,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:16:43,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:16:43,080 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-16 00:16:43,081 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:16:43,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:16:43,086 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-16 00:16:43,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:16:43,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:16:43,087 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-16 00:16:43,087 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-11-16 00:16:43,101 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. [2019-11-16 00:16:43,102 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 [2019-11-16 00:16:43,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-16 00:16:43,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-11-16 00:16:43,103 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-16 00:16:43,104 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:16:43,104 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-16 00:16:43,104 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:16:43,104 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2019-11-16 00:16:43,104 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:16:43,105 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2019-11-16 00:16:43,106 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-16 00:16:43,106 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2019-11-16 00:16:43,106 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-11-16 00:16:43,107 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-16 00:16:43,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2019-11-16 00:16:43,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-16 00:16:43,107 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-11-16 00:16:43,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2019-11-16 00:16:43,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-16 00:16:43,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-16 00:16:43,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2019-11-16 00:16:43,109 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-11-16 00:16:43,109 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-11-16 00:16:43,109 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-16 00:16:43,110 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2019-11-16 00:16:43,110 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-16 00:16:43,110 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-16 00:16:43,111 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-16 00:16:43,111 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2019-11-16 00:16:43,111 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-16 00:16:43,111 INFO L791 eck$LassoCheckResult]: Stem: 116#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~j~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~N~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~i~0 := main_~N~0; 117#L19-2 assume !!(main_~i~0 > 0); 122#L19 assume !(main_~j~0 > 0);main_~j~0 := main_~N~0;main_~i~0 := main_~i~0 - 1; 123#L19-2 assume !!(main_~i~0 > 0); 124#L19 assume !(main_~j~0 > 0);main_~j~0 := main_~N~0;main_~i~0 := main_~i~0 - 1; 118#L19-2 [2019-11-16 00:16:43,112 INFO L793 eck$LassoCheckResult]: Loop: 118#L19-2 assume !!(main_~i~0 > 0); 119#L19 assume main_~j~0 > 0;main_~j~0 := main_~j~0 - 1; 118#L19-2 [2019-11-16 00:16:43,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:16:43,112 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 2 times [2019-11-16 00:16:43,112 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:16:43,112 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983775713] [2019-11-16 00:16:43,113 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:16:43,113 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:16:43,113 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:16:43,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:16:43,195 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:16:43,196 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983775713] [2019-11-16 00:16:43,196 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310227209] [2019-11-16 00:16:43,197 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c9472ee-5f5c-4daf-8e2c-32669f4cc8c0/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:16:43,243 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-16 00:16:43,244 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-16 00:16:43,244 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-16 00:16:43,245 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:16:43,275 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:16:43,275 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-16 00:16:43,275 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2019-11-16 00:16:43,276 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240157216] [2019-11-16 00:16:43,278 INFO L796 eck$LassoCheckResult]: stem already infeasible [2019-11-16 00:16:43,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:16:43,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2019-11-16 00:16:43,279 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:16:43,279 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93633545] [2019-11-16 00:16:43,279 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:16:43,279 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:16:43,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:16:43,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:16:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:16:43,287 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:16:43,301 INFO L210 LassoAnalysis]: Preferences: [2019-11-16 00:16:43,301 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-16 00:16:43,301 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-16 00:16:43,301 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-16 00:16:43,301 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-16 00:16:43,301 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:16:43,302 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-16 00:16:43,302 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-16 00:16:43,302 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration3_Loop [2019-11-16 00:16:43,302 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-16 00:16:43,302 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-16 00:16:43,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:43,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:43,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:43,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:43,415 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-16 00:16:43,415 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c9472ee-5f5c-4daf-8e2c-32669f4cc8c0/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) [2019-11-16 00:16:43,430 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-16 00:16:43,430 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:16:43,436 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-16 00:16:43,436 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/run_dir_3c9472ee-5f5c-4daf-8e2c-32669f4cc8c0/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) [2019-11-16 00:16:43,453 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-16 00:16:43,453 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c9472ee-5f5c-4daf-8e2c-32669f4cc8c0/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) [2019-11-16 00:16:43,473 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-16 00:16:43,473 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:16:43,487 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-16 00:16:43,490 INFO L210 LassoAnalysis]: Preferences: [2019-11-16 00:16:43,490 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-16 00:16:43,490 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-16 00:16:43,491 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-16 00:16:43,491 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-16 00:16:43,491 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:16:43,491 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-16 00:16:43,491 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-16 00:16:43,491 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration3_Loop [2019-11-16 00:16:43,492 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-16 00:16:43,492 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-16 00:16:43,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:43,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:43,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:43,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:43,566 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-16 00:16:43,566 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-16 00:16:43,566 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-16 00:16:43,568 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:16:43,568 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:16:43,568 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:16:43,568 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:16:43,571 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-16 00:16:43,571 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-16 00:16:43,578 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:16:43,578 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-16 00:16:43,583 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:16:43,583 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:16:43,583 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:16:43,583 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:16:43,583 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:16:43,584 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:16:43,585 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:16:43,589 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-16 00:16:43,592 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-16 00:16:43,592 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-16 00:16:43,593 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-16 00:16:43,593 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-16 00:16:43,593 INFO L510 LassoAnalysis]: Proved termination. [2019-11-16 00:16:43,593 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2019-11-16 00:16:43,594 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-16 00:16:43,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:16:43,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:16:43,615 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-16 00:16:43,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:16:43,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:16:43,623 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-16 00:16:43,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:16:43,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:16:43,624 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-16 00:16:43,624 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-11-16 00:16:43,644 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. [2019-11-16 00:16:43,645 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 [2019-11-16 00:16:43,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-16 00:16:43,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-11-16 00:16:43,646 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-16 00:16:43,646 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:16:43,646 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-16 00:16:43,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:16:43,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:16:43,667 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-16 00:16:43,667 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:16:43,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:16:43,676 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-16 00:16:43,677 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:16:43,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:16:43,677 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-16 00:16:43,678 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-11-16 00:16:43,689 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. [2019-11-16 00:16:43,690 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 [2019-11-16 00:16:43,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-16 00:16:43,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-11-16 00:16:43,690 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-16 00:16:43,690 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:16:43,691 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-16 00:16:43,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:16:43,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:16:43,718 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-16 00:16:43,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:16:43,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:16:43,732 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-16 00:16:43,732 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:16:43,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:16:43,733 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-16 00:16:43,733 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-11-16 00:16:43,743 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. [2019-11-16 00:16:43,744 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 [2019-11-16 00:16:43,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-16 00:16:43,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-11-16 00:16:43,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-16 00:16:43,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:16:43,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-16 00:16:43,746 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:16:43,746 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2019-11-16 00:16:43,747 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:16:43,747 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 23 transitions. [2019-11-16 00:16:43,748 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-16 00:16:43,749 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 19 transitions. [2019-11-16 00:16:43,749 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-16 00:16:43,749 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-16 00:16:43,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2019-11-16 00:16:43,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-16 00:16:43,750 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2019-11-16 00:16:43,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2019-11-16 00:16:43,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2019-11-16 00:16:43,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-16 00:16:43,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2019-11-16 00:16:43,752 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-11-16 00:16:43,752 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:16:43,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-16 00:16:43,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-16 00:16:43,757 INFO L87 Difference]: Start difference. First operand 5 states and 7 transitions. Second operand 7 states. [2019-11-16 00:16:43,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:16:43,818 INFO L93 Difference]: Finished difference Result 11 states and 14 transitions. [2019-11-16 00:16:43,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-16 00:16:43,819 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2019-11-16 00:16:43,819 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-16 00:16:43,820 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 10 states and 13 transitions. [2019-11-16 00:16:43,820 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-16 00:16:43,820 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-16 00:16:43,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2019-11-16 00:16:43,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-16 00:16:43,821 INFO L688 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-11-16 00:16:43,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2019-11-16 00:16:43,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 6. [2019-11-16 00:16:43,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-16 00:16:43,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2019-11-16 00:16:43,822 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2019-11-16 00:16:43,823 INFO L591 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2019-11-16 00:16:43,823 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-16 00:16:43,823 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2019-11-16 00:16:43,823 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-16 00:16:43,823 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-16 00:16:43,823 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-16 00:16:43,824 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-16 00:16:43,824 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2019-11-16 00:16:43,824 INFO L791 eck$LassoCheckResult]: Stem: 295#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~j~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~N~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~i~0 := main_~N~0; 296#L19-2 assume !!(main_~i~0 > 0); 300#L19 [2019-11-16 00:16:43,824 INFO L793 eck$LassoCheckResult]: Loop: 300#L19 assume !(main_~j~0 > 0);main_~j~0 := main_~N~0;main_~i~0 := main_~i~0 - 1; 297#L19-2 assume !!(main_~i~0 > 0); 298#L19 assume main_~j~0 > 0;main_~j~0 := main_~j~0 - 1; 299#L19-2 assume !!(main_~i~0 > 0); 300#L19 [2019-11-16 00:16:43,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:16:43,825 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-16 00:16:43,825 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:16:43,825 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554583154] [2019-11-16 00:16:43,825 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:16:43,825 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:16:43,826 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:16:43,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:16:43,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:16:43,833 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:16:43,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:16:43,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1380409, now seen corresponding path program 1 times [2019-11-16 00:16:43,833 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:16:43,834 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731674240] [2019-11-16 00:16:43,834 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:16:43,834 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:16:43,834 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:16:43,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:16:43,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:16:43,846 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:16:43,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:16:43,848 INFO L82 PathProgramCache]: Analyzing trace with hash 925824930, now seen corresponding path program 2 times [2019-11-16 00:16:43,849 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:16:43,849 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705249211] [2019-11-16 00:16:43,849 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:16:43,849 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:16:43,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:16:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:16:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:16:43,869 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:16:43,910 INFO L210 LassoAnalysis]: Preferences: [2019-11-16 00:16:43,911 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-16 00:16:43,911 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-16 00:16:43,911 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-16 00:16:43,911 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-16 00:16:43,911 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:16:43,911 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-16 00:16:43,911 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-16 00:16:43,911 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration4_Loop [2019-11-16 00:16:43,912 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-16 00:16:43,912 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-16 00:16:43,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:43,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:43,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:43,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:44,033 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-16 00:16:44,033 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c9472ee-5f5c-4daf-8e2c-32669f4cc8c0/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) [2019-11-16 00:16:44,040 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-16 00:16:44,040 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c9472ee-5f5c-4daf-8e2c-32669f4cc8c0/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) [2019-11-16 00:16:44,057 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-16 00:16:44,057 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 [2019-11-16 00:16:44,117 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-16 00:16:44,120 INFO L210 LassoAnalysis]: Preferences: [2019-11-16 00:16:44,120 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-16 00:16:44,120 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-16 00:16:44,120 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-16 00:16:44,120 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-16 00:16:44,120 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:16:44,120 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-16 00:16:44,121 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-16 00:16:44,121 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration4_Loop [2019-11-16 00:16:44,121 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-16 00:16:44,121 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-16 00:16:44,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:44,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:44,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:44,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:16:44,233 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-16 00:16:44,233 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-16 00:16:44,234 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-16 00:16:44,234 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:16:44,235 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:16:44,235 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:16:44,235 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:16:44,235 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:16:44,236 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:16:44,236 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:16:44,246 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-16 00:16:44,250 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-16 00:16:44,253 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-16 00:16:44,254 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-16 00:16:44,255 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-16 00:16:44,255 INFO L510 LassoAnalysis]: Proved termination. [2019-11-16 00:16:44,255 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-11-16 00:16:44,256 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-16 00:16:44,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:16:44,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:16:44,277 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-16 00:16:44,278 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:16:44,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:16:44,283 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-16 00:16:44,284 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:16:44,312 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:16:44,313 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-16 00:16:44,313 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3 Second operand 4 states. [2019-11-16 00:16:44,334 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 18 states and 24 transitions. Complement of second has 6 states. [2019-11-16 00:16:44,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-16 00:16:44,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-16 00:16:44,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2019-11-16 00:16:44,336 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2019-11-16 00:16:44,336 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:16:44,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2019-11-16 00:16:44,337 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:16:44,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 8 letters. [2019-11-16 00:16:44,337 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:16:44,337 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 24 transitions. [2019-11-16 00:16:44,338 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-16 00:16:44,339 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2019-11-16 00:16:44,339 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-16 00:16:44,339 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-16 00:16:44,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-16 00:16:44,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-16 00:16:44,339 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-16 00:16:44,340 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-16 00:16:44,340 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-16 00:16:44,340 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-16 00:16:44,340 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-16 00:16:44,340 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-16 00:16:44,340 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-16 00:16:44,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 12:16:44 BoogieIcfgContainer [2019-11-16 00:16:44,349 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-16 00:16:44,349 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:16:44,349 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:16:44,350 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:16:44,350 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:16:41" (3/4) ... [2019-11-16 00:16:44,356 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-16 00:16:44,356 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:16:44,359 INFO L168 Benchmark]: Toolchain (without parser) took 3363.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 946.5 MB in the beginning and 842.6 MB in the end (delta: 103.9 MB). Peak memory consumption was 237.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:16:44,360 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:16:44,362 INFO L168 Benchmark]: CACSL2BoogieTranslator took 353.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 946.5 MB in the beginning and 1.1 GB in the end (delta: -177.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2019-11-16 00:16:44,368 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.43 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: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. [2019-11-16 00:16:44,369 INFO L168 Benchmark]: Boogie Preprocessor took 21.82 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:16:44,369 INFO L168 Benchmark]: RCFGBuilder took 206.56 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: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2019-11-16 00:16:44,370 INFO L168 Benchmark]: BuchiAutomizer took 2719.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 842.6 MB in the end (delta: 264.0 MB). Peak memory consumption was 264.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:16:44,370 INFO L168 Benchmark]: Witness Printer took 6.65 ms. Allocated memory is still 1.2 GB. Free memory is still 842.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:16:44,377 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 353.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 946.5 MB in the beginning and 1.1 GB in the end (delta: -177.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.43 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: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.82 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 206.56 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: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2719.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 842.6 MB in the end (delta: 264.0 MB). Peak memory consumption was 264.0 MB. Max. memory is 11.5 GB. * Witness Printer took 6.65 ms. Allocated memory is still 1.2 GB. Free memory is still 842.6 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 5 terminating modules (1 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function j and consists of 4 locations. One deterministic module has affine ranking function j and consists of 3 locations. One deterministic module has affine ranking function i and consists of 4 locations. One nondeterministic module has affine ranking function j and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.0s. 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 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 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: 2/2 HoareTripleCheckerStatistics: 31 SDtfs, 32 SDslu, 10 SDs, 0 SdLazy, 40 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax181 hnf99 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq154 hnf94 smp100 dnf100 smp100 tf112 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 35ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 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...