./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Benghazi.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Benghazi.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF --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 9edf84ee73e15e033440f38035e679f46457b07702832d589a58530a086e57e5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:21:46,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:21:46,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:21:46,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:21:46,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:21:46,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:21:46,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:21:46,200 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:21:46,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:21:46,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:21:46,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:21:46,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:21:46,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:21:46,217 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:21:46,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:21:46,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:21:46,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:21:46,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:21:46,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:21:46,242 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:21:46,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:21:46,246 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:21:46,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:21:46,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:21:46,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:21:46,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:21:46,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:21:46,257 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:21:46,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:21:46,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:21:46,259 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:21:46,260 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:21:46,262 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:21:46,263 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:21:46,265 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:21:46,265 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:21:46,266 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:21:46,266 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:21:46,266 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:21:46,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:21:46,268 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:21:46,269 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-20 06:21:46,323 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:21:46,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:21:46,324 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:21:46,325 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:21:46,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:21:46,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:21:46,326 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:21:46,327 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 06:21:46,327 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 06:21:46,327 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 06:21:46,328 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 06:21:46,329 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 06:21:46,329 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 06:21:46,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:21:46,329 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 06:21:46,330 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:21:46,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:21:46,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 06:21:46,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 06:21:46,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 06:21:46,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:21:46,331 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 06:21:46,331 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:21:46,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 06:21:46,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:21:46,332 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:21:46,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:21:46,334 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:21:46,334 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:21:46,336 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 06:21:46,336 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9edf84ee73e15e033440f38035e679f46457b07702832d589a58530a086e57e5 [2021-11-20 06:21:46,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:21:46,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:21:46,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:21:46,649 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:21:46,650 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:21:46,651 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/termination-crafted/Benghazi.c [2021-11-20 06:21:46,734 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/data/ce1bcf230/805feb30896b4f11909406b8143a1484/FLAG7c7fa2bac [2021-11-20 06:21:47,238 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:21:47,239 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/sv-benchmarks/c/termination-crafted/Benghazi.c [2021-11-20 06:21:47,248 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/data/ce1bcf230/805feb30896b4f11909406b8143a1484/FLAG7c7fa2bac [2021-11-20 06:21:47,620 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/data/ce1bcf230/805feb30896b4f11909406b8143a1484 [2021-11-20 06:21:47,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:21:47,627 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:21:47,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:21:47,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:21:47,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:21:47,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:21:47" (1/1) ... [2021-11-20 06:21:47,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b3b5875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:21:47, skipping insertion in model container [2021-11-20 06:21:47,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:21:47" (1/1) ... [2021-11-20 06:21:47,643 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:21:47,656 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:21:47,816 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:21:47,820 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:21:47,859 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:21:47,868 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:21:47,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:21:47 WrapperNode [2021-11-20 06:21:47,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:21:47,870 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:21:47,870 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:21:47,870 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:21:47,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:21:47" (1/1) ... [2021-11-20 06:21:47,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:21:47" (1/1) ... [2021-11-20 06:21:47,898 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2021-11-20 06:21:47,898 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:21:47,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:21:47,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:21:47,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:21:47,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:21:47" (1/1) ... [2021-11-20 06:21:47,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:21:47" (1/1) ... [2021-11-20 06:21:47,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:21:47" (1/1) ... [2021-11-20 06:21:47,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:21:47" (1/1) ... [2021-11-20 06:21:47,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:21:47" (1/1) ... [2021-11-20 06:21:47,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:21:47" (1/1) ... [2021-11-20 06:21:47,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:21:47" (1/1) ... [2021-11-20 06:21:47,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:21:47,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:21:47,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:21:47,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:21:47,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:21:47" (1/1) ... [2021-11-20 06:21:47,924 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:21:47,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:21:47,948 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:21:47,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 06:21:47,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:21:47,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:21:48,046 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:21:48,048 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:21:48,133 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:21:48,139 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:21:48,140 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 06:21:48,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:21:48 BoogieIcfgContainer [2021-11-20 06:21:48,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:21:48,144 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 06:21:48,144 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 06:21:48,147 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 06:21:48,148 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:21:48,149 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 06:21:47" (1/3) ... [2021-11-20 06:21:48,151 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d917965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 06:21:48, skipping insertion in model container [2021-11-20 06:21:48,151 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:21:48,151 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:21:47" (2/3) ... [2021-11-20 06:21:48,152 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d917965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 06:21:48, skipping insertion in model container [2021-11-20 06:21:48,152 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:21:48,152 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:21:48" (3/3) ... [2021-11-20 06:21:48,155 INFO L388 chiAutomizerObserver]: Analyzing ICFG Benghazi.c [2021-11-20 06:21:48,214 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 06:21:48,214 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 06:21:48,214 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 06:21:48,215 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 06:21:48,215 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 06:21:48,215 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 06:21:48,215 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 06:21:48,215 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 06:21:48,229 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:21:48,246 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-20 06:21:48,247 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:21:48,247 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:21:48,252 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 06:21:48,253 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-20 06:21:48,253 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 06:21:48,253 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:21:48,254 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-20 06:21:48,254 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:21:48,255 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:21:48,255 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 06:21:48,255 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-20 06:21:48,261 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~d1~0#1, main_~d2~0#1, main_~d1old~0#1;havoc main_~x~0#1;havoc main_~d1~0#1;havoc main_~d2~0#1;havoc main_~d1old~0#1;main_~d1~0#1 := 73;main_~d2~0#1 := 74;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 8#L22-2true [2021-11-20 06:21:48,262 INFO L793 eck$LassoCheckResult]: Loop: 8#L22-2true assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~d1~0#1;main_~d1old~0#1 := main_~d1~0#1;main_~d1~0#1 := 1 + main_~d2~0#1;main_~d2~0#1 := 1 + main_~d1old~0#1; 8#L22-2true [2021-11-20 06:21:48,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:21:48,268 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-20 06:21:48,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:21:48,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294819828] [2021-11-20 06:21:48,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:21:48,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:21:48,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:21:48,358 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:21:48,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:21:48,386 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:21:48,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:21:48,394 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2021-11-20 06:21:48,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:21:48,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441378817] [2021-11-20 06:21:48,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:21:48,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:21:48,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:21:48,422 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:21:48,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:21:48,438 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:21:48,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:21:48,440 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-11-20 06:21:48,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:21:48,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128218910] [2021-11-20 06:21:48,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:21:48,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:21:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:21:48,461 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:21:48,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:21:48,478 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:21:48,612 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 06:21:48,612 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 06:21:48,613 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 06:21:48,613 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 06:21:48,613 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 06:21:48,613 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:21:48,613 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 06:21:48,614 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 06:21:48,614 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi.c_Iteration1_Loop [2021-11-20 06:21:48,614 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 06:21:48,614 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 06:21:48,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:21:48,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:21:48,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:21:48,737 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 06:21:48,738 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 06:21:48,740 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:21:48,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:21:48,752 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:21:48,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-20 06:21:48,755 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:21:48,756 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:21:48,781 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 06:21:48,781 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: [] [2021-11-20 06:21:48,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:21:48,819 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:21:48,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:21:48,821 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:21:48,835 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:21:48,835 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:21:48,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-20 06:21:48,855 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 06:21:48,855 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: [] [2021-11-20 06:21:48,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:21:48,894 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:21:48,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:21:48,895 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:21:48,902 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:21:48,902 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:21:48,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-20 06:21:48,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-20 06:21:48,963 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:21:48,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:21:48,964 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:21:48,969 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 06:21:48,970 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:21:49,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-20 06:21:52,608 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 06:21:52,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-20 06:21:52,615 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 06:21:52,615 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 06:21:52,615 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 06:21:52,615 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 06:21:52,615 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 06:21:52,616 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:21:52,616 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 06:21:52,616 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 06:21:52,616 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi.c_Iteration1_Loop [2021-11-20 06:21:52,616 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 06:21:52,616 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 06:21:52,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:21:52,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:21:52,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:21:52,724 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 06:21:52,729 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 06:21:52,730 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:21:52,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:21:52,734 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:21:52,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-20 06:21:52,755 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:21:52,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:21:52,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:21:52,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:21:52,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:21:52,775 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:21:52,775 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:21:52,795 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:21:52,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-20 06:21:52,830 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:21:52,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:21:52,832 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:21:52,838 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:21:52,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:21:52,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:21:52,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:21:52,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:21:52,854 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:21:52,855 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:21:52,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-20 06:21:52,874 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:21:52,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-20 06:21:52,915 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:21:52,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:21:52,918 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:21:52,924 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:21:52,936 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:21:52,937 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:21:52,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:21:52,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:21:52,937 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:21:52,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-20 06:21:52,943 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:21:52,943 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:21:52,962 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:21:52,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-20 06:21:52,999 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-11-20 06:21:52,999 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:21:52,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:21:53,000 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:21:53,006 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:21:53,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:21:53,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:21:53,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:21:53,016 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-20 06:21:53,020 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-11-20 06:21:53,021 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-11-20 06:21:53,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-20 06:21:53,034 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:21:53,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-20 06:21:53,070 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:21:53,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:21:53,072 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:21:53,077 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:21:53,086 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:21:53,086 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:21:53,086 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:21:53,087 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-20 06:21:53,091 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-11-20 06:21:53,091 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-11-20 06:21:53,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-20 06:21:53,100 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:21:53,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-20 06:21:53,135 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:21:53,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:21:53,136 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:21:53,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-20 06:21:53,138 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:21:53,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:21:53,145 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:21:53,146 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:21:53,146 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:21:53,146 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-20 06:21:53,149 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-11-20 06:21:53,149 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:21:53,160 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:21:53,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-20 06:21:53,193 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-11-20 06:21:53,193 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:21:53,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:21:53,194 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:21:53,203 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:21:53,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:21:53,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:21:53,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:21:53,213 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-20 06:21:53,217 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-11-20 06:21:53,217 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-11-20 06:21:53,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-20 06:21:53,258 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:21:53,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-20 06:21:53,290 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:21:53,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:21:53,291 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:21:53,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-20 06:21:53,306 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:21:53,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:21:53,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:21:53,314 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:21:53,314 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-20 06:21:53,321 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-11-20 06:21:53,322 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-11-20 06:21:53,350 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:21:53,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-20 06:21:53,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:21:53,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:21:53,387 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:21:53,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-20 06:21:53,391 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:21:53,400 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:21:53,400 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:21:53,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:21:53,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:21:53,400 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-20 06:21:53,404 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-20 06:21:53,404 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:21:53,416 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 06:21:53,424 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-11-20 06:21:53,424 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-20 06:21:53,426 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:21:53,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:21:53,430 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:21:53,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-20 06:21:53,469 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 06:21:53,473 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 06:21:53,473 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 06:21:53,474 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 3-nested ranking function: f0 = -1*ULTIMATE.start_main_~d2~0#1 - 1*ULTIMATE.start_main_~d1~0#1 f1 = 2*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~d1~0#1 + 1 f2 = 1*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2021-11-20 06:21:53,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-20 06:21:53,497 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 06:21:53,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:21:53,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:21:53,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 06:21:53,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:21:53,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:21:53,566 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 06:21:53,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:21:53,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:21:53,605 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 [2021-11-20 06:21:53,606 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:21:53,653 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 19 transitions. Complement of second has 5 states. [2021-11-20 06:21:53,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 06:21:53,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:21:53,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2021-11-20 06:21:53,662 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 1 letters. [2021-11-20 06:21:53,663 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:21:53,663 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 1 letters. [2021-11-20 06:21:53,663 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:21:53,663 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 2 letters. [2021-11-20 06:21:53,663 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:21:53,664 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2021-11-20 06:21:53,668 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 06:21:53,670 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2021-11-20 06:21:53,671 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-20 06:21:53,671 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-20 06:21:53,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-20 06:21:53,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 06:21:53,672 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 06:21:53,672 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 06:21:53,672 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 06:21:53,672 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 06:21:53,672 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-20 06:21:53,672 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 06:21:53,672 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-20 06:21:53,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 06:21:53 BoogieIcfgContainer [2021-11-20 06:21:53,680 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 06:21:53,681 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:21:53,681 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:21:53,682 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:21:53,682 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:21:48" (3/4) ... [2021-11-20 06:21:53,685 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 06:21:53,685 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:21:53,692 INFO L158 Benchmark]: Toolchain (without parser) took 6058.43ms. Allocated memory was 111.1MB in the beginning and 142.6MB in the end (delta: 31.5MB). Free memory was 79.3MB in the beginning and 107.9MB in the end (delta: -28.5MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. [2021-11-20 06:21:53,693 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 111.1MB. Free memory was 65.8MB in the beginning and 65.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:21:53,694 INFO L158 Benchmark]: CACSL2BoogieTranslator took 240.28ms. Allocated memory was 111.1MB in the beginning and 142.6MB in the end (delta: 31.5MB). Free memory was 79.0MB in the beginning and 118.6MB in the end (delta: -39.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 06:21:53,695 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.55ms. Allocated memory is still 142.6MB. Free memory was 118.6MB in the beginning and 117.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:21:53,695 INFO L158 Benchmark]: Boogie Preprocessor took 15.16ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 116.5MB in the end (delta: 812.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:21:53,698 INFO L158 Benchmark]: RCFGBuilder took 227.51ms. Allocated memory is still 142.6MB. Free memory was 116.5MB in the beginning and 108.7MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 06:21:53,699 INFO L158 Benchmark]: BuchiAutomizer took 5536.37ms. Allocated memory is still 142.6MB. Free memory was 108.7MB in the beginning and 108.6MB in the end (delta: 82.7kB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. [2021-11-20 06:21:53,699 INFO L158 Benchmark]: Witness Printer took 3.81ms. Allocated memory is still 142.6MB. Free memory is still 107.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:21:53,707 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 111.1MB. Free memory was 65.8MB in the beginning and 65.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 240.28ms. Allocated memory was 111.1MB in the beginning and 142.6MB in the end (delta: 31.5MB). Free memory was 79.0MB in the beginning and 118.6MB in the end (delta: -39.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.55ms. Allocated memory is still 142.6MB. Free memory was 118.6MB in the beginning and 117.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.16ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 116.5MB in the end (delta: 812.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 227.51ms. Allocated memory is still 142.6MB. Free memory was 116.5MB in the beginning and 108.7MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 5536.37ms. Allocated memory is still 142.6MB. Free memory was 108.7MB in the beginning and 108.6MB in the end (delta: 82.7kB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. * Witness Printer took 3.81ms. Allocated memory is still 142.6MB. Free memory is still 107.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 3-nested ranking function (if -1 * d2 + -1 * d1 > 0 then 2 else (if 2 * x + -1 * d1 + 1 > 0 then 1 else 0)), (if -1 * d2 + -1 * d1 > 0 then -1 * d2 + -1 * d1 else (if 2 * x + -1 * d1 + 1 > 0 then 2 * x + -1 * d1 + 1 else x + 1)) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 5.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 5 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax152 hnf100 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq195 hnf91 smp100 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 65ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 4 MotzkinApplications: 12 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 3.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-20 06:21:53,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-20 06:21:53,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0b112dc-6c81-47e3-a72f-2c28496c0bd0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE