./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa --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 b5b0de00a094cfc3c067192c4a42cb6740c5eeeb1cc4308b3b5e47b47532a575 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 20:26:08,237 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 20:26:08,239 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 20:26:08,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 20:26:08,270 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 20:26:08,271 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 20:26:08,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 20:26:08,275 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 20:26:08,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 20:26:08,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 20:26:08,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 20:26:08,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 20:26:08,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 20:26:08,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 20:26:08,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 20:26:08,285 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 20:26:08,286 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 20:26:08,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 20:26:08,289 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 20:26:08,291 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 20:26:08,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 20:26:08,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 20:26:08,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 20:26:08,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 20:26:08,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 20:26:08,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 20:26:08,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 20:26:08,302 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 20:26:08,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 20:26:08,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 20:26:08,304 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 20:26:08,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 20:26:08,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 20:26:08,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 20:26:08,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 20:26:08,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 20:26:08,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 20:26:08,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 20:26:08,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 20:26:08,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 20:26:08,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 20:26:08,310 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-06 20:26:08,327 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 20:26:08,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 20:26:08,327 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 20:26:08,327 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 20:26:08,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 20:26:08,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 20:26:08,328 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 20:26:08,328 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 20:26:08,328 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 20:26:08,329 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 20:26:08,329 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 20:26:08,329 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 20:26:08,329 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 20:26:08,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 20:26:08,329 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 20:26:08,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 20:26:08,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 20:26:08,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 20:26:08,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 20:26:08,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 20:26:08,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 20:26:08,330 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 20:26:08,330 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 20:26:08,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 20:26:08,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 20:26:08,331 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 20:26:08,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 20:26:08,331 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 20:26:08,331 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 20:26:08,332 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 20:26:08,332 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_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5b0de00a094cfc3c067192c4a42cb6740c5eeeb1cc4308b3b5e47b47532a575 [2021-12-06 20:26:08,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 20:26:08,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 20:26:08,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 20:26:08,520 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 20:26:08,521 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 20:26:08,522 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c [2021-12-06 20:26:08,565 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/data/30ac7ee2b/1314f9eeb51240a18e5dc36136e64c42/FLAGc236f45c5 [2021-12-06 20:26:08,927 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 20:26:08,928 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c [2021-12-06 20:26:08,934 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/data/30ac7ee2b/1314f9eeb51240a18e5dc36136e64c42/FLAGc236f45c5 [2021-12-06 20:26:08,947 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/data/30ac7ee2b/1314f9eeb51240a18e5dc36136e64c42 [2021-12-06 20:26:08,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 20:26:08,950 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 20:26:08,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 20:26:08,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 20:26:08,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 20:26:08,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:26:08" (1/1) ... [2021-12-06 20:26:08,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@189e424a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:26:08, skipping insertion in model container [2021-12-06 20:26:08,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:26:08" (1/1) ... [2021-12-06 20:26:08,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 20:26:08,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:26:09,097 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:26:09,100 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 20:26:09,110 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:26:09,118 INFO L208 MainTranslator]: Completed translation [2021-12-06 20:26:09,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:26:09 WrapperNode [2021-12-06 20:26:09,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 20:26:09,119 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 20:26:09,119 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 20:26:09,120 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 20:26:09,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:26:09" (1/1) ... [2021-12-06 20:26:09,128 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:26:09" (1/1) ... [2021-12-06 20:26:09,140 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2021-12-06 20:26:09,141 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 20:26:09,141 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 20:26:09,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 20:26:09,142 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 20:26:09,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:26:09" (1/1) ... [2021-12-06 20:26:09,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:26:09" (1/1) ... [2021-12-06 20:26:09,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:26:09" (1/1) ... [2021-12-06 20:26:09,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:26:09" (1/1) ... [2021-12-06 20:26:09,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:26:09" (1/1) ... [2021-12-06 20:26:09,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:26:09" (1/1) ... [2021-12-06 20:26:09,153 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:26:09" (1/1) ... [2021-12-06 20:26:09,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 20:26:09,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 20:26:09,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 20:26:09,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 20:26:09,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:26:09" (1/1) ... [2021-12-06 20:26:09,161 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:09,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:09,183 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:09,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 20:26:09,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 20:26:09,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 20:26:09,257 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 20:26:09,258 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 20:26:09,302 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 20:26:09,307 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 20:26:09,307 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 20:26:09,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:26:09 BoogieIcfgContainer [2021-12-06 20:26:09,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 20:26:09,309 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 20:26:09,309 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 20:26:09,312 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 20:26:09,312 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 20:26:09,312 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 08:26:08" (1/3) ... [2021-12-06 20:26:09,313 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@fba3713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 08:26:09, skipping insertion in model container [2021-12-06 20:26:09,313 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 20:26:09,313 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:26:09" (2/3) ... [2021-12-06 20:26:09,314 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@fba3713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 08:26:09, skipping insertion in model container [2021-12-06 20:26:09,314 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 20:26:09,314 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:26:09" (3/3) ... [2021-12-06 20:26:09,315 INFO L388 chiAutomizerObserver]: Analyzing ICFG b.09-no-inv_assume.c [2021-12-06 20:26:09,349 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 20:26:09,349 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 20:26:09,349 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 20:26:09,349 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 20:26:09,349 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 20:26:09,349 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 20:26:09,349 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 20:26:09,349 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 20:26:09,360 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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) [2021-12-06 20:26:09,373 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 20:26:09,373 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 20:26:09,373 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 20:26:09,377 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-06 20:26:09,378 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 20:26:09,378 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 20:26:09,378 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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) [2021-12-06 20:26:09,379 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 20:26:09,379 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 20:26:09,379 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 20:26:09,379 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-06 20:26:09,379 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 20:26:09,384 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 11#L11true assume main_~x~0#1 > 0 && main_~y~0#1 > 0; 3#L12-2true [2021-12-06 20:26:09,385 INFO L793 eck$LassoCheckResult]: Loop: 3#L12-2true assume !!!(0 == main_~x~0#1); 7#L13true assume main_~x~0#1 > main_~y~0#1;main_~x~0#1 := main_~y~0#1; 9#L13-2true main_~c~0#1 := 1 + main_~c~0#1; 3#L12-2true [2021-12-06 20:26:09,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:09,389 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-12-06 20:26:09,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:09,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231998015] [2021-12-06 20:26:09,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:09,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:09,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:09,452 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:26:09,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:09,465 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:26:09,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:09,468 INFO L85 PathProgramCache]: Analyzing trace with hash 43793, now seen corresponding path program 1 times [2021-12-06 20:26:09,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:09,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963246851] [2021-12-06 20:26:09,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:09,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:09,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:09,476 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:26:09,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:09,481 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:26:09,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:09,482 INFO L85 PathProgramCache]: Analyzing trace with hash 889513680, now seen corresponding path program 1 times [2021-12-06 20:26:09,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:09,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45700089] [2021-12-06 20:26:09,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:09,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:09,491 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:26:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:09,496 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:26:09,555 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 20:26:09,555 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 20:26:09,555 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 20:26:09,556 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 20:26:09,556 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 20:26:09,556 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:09,556 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 20:26:09,556 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 20:26:09,556 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration1_Loop [2021-12-06 20:26:09,556 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 20:26:09,556 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 20:26:09,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:09,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:09,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:09,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:09,680 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 20:26:09,680 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 20:26:09,682 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:09,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:09,684 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:09,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-06 20:26:09,685 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:09,685 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:09,703 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:09,703 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: [] [2021-12-06 20:26:09,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-06 20:26:09,724 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:09,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:09,725 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:09,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-06 20:26:09,732 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:09,732 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:09,746 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:09,746 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: [] [2021-12-06 20:26:09,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-06 20:26:09,766 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:09,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:09,767 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:09,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-06 20:26:09,768 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:09,769 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:09,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-06 20:26:09,805 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:09,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:09,806 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:09,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-06 20:26:09,807 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 20:26:09,807 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:09,990 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 20:26:09,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-06 20:26:09,993 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 20:26:09,993 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 20:26:09,993 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 20:26:09,993 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 20:26:09,993 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 20:26:09,996 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:09,997 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 20:26:09,997 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 20:26:09,997 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration1_Loop [2021-12-06 20:26:09,997 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 20:26:09,997 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 20:26:09,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:10,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:10,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:10,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:10,056 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 20:26:10,061 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 20:26:10,062 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:10,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:10,063 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:10,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-06 20:26:10,065 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 [2021-12-06 20:26:10,073 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:10,073 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:10,073 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:26:10,073 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:10,079 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 20:26:10,079 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 20:26:10,084 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:26:10,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-06 20:26:10,104 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:10,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:10,105 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:10,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-06 20:26:10,106 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 [2021-12-06 20:26:10,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:10,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:10,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:26:10,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:10,117 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 20:26:10,117 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 20:26:10,120 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:26:10,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-06 20:26:10,139 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:10,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:10,140 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:10,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-06 20:26:10,142 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 [2021-12-06 20:26:10,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:10,151 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:26:10,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:10,151 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-06 20:26:10,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:10,153 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-12-06 20:26:10,153 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:26:10,157 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 20:26:10,162 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-06 20:26:10,163 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-06 20:26:10,164 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:10,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:10,169 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:10,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-06 20:26:10,171 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 20:26:10,171 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 20:26:10,171 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 20:26:10,171 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~y~0#1 + 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2021-12-06 20:26:10,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-06 20:26:10,192 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 20:26:10,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:10,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 20:26:10,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:26:10,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:10,225 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 20:26:10,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:26:10,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:26:10,281 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-06 20:26:10,282 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-12-06 20:26:10,309 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 30 states and 37 transitions. Complement of second has 5 states. [2021-12-06 20:26:10,310 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 [2021-12-06 20:26:10,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-12-06 20:26:10,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2021-12-06 20:26:10,315 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 3 letters. Loop has 3 letters. [2021-12-06 20:26:10,315 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:26:10,315 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 6 letters. Loop has 3 letters. [2021-12-06 20:26:10,316 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:26:10,316 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 3 letters. Loop has 6 letters. [2021-12-06 20:26:10,316 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:26:10,317 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 37 transitions. [2021-12-06 20:26:10,319 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 20:26:10,321 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 13 states and 16 transitions. [2021-12-06 20:26:10,321 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-12-06 20:26:10,322 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-12-06 20:26:10,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2021-12-06 20:26:10,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 20:26:10,322 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-12-06 20:26:10,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2021-12-06 20:26:10,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2021-12-06 20:26:10,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 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) [2021-12-06 20:26:10,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2021-12-06 20:26:10,339 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-12-06 20:26:10,339 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-12-06 20:26:10,339 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-06 20:26:10,339 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2021-12-06 20:26:10,339 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 20:26:10,339 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 20:26:10,339 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 20:26:10,340 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-06 20:26:10,340 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 20:26:10,340 INFO L791 eck$LassoCheckResult]: Stem: 86#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 87#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 91#L11 assume main_~x~0#1 > 0 && main_~y~0#1 > 0; 92#L12-2 assume !!!(0 == main_~x~0#1); 83#L13 [2021-12-06 20:26:10,340 INFO L793 eck$LassoCheckResult]: Loop: 83#L13 assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := main_~x~0#1 - 1; 88#L13-2 main_~c~0#1 := 1 + main_~c~0#1; 82#L12-2 assume !!!(0 == main_~x~0#1); 83#L13 [2021-12-06 20:26:10,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:10,340 INFO L85 PathProgramCache]: Analyzing trace with hash 925612, now seen corresponding path program 1 times [2021-12-06 20:26:10,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:10,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94350397] [2021-12-06 20:26:10,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:10,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:10,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:10,344 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:26:10,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:10,347 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:26:10,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:10,347 INFO L85 PathProgramCache]: Analyzing trace with hash 48715, now seen corresponding path program 1 times [2021-12-06 20:26:10,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:10,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953677126] [2021-12-06 20:26:10,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:10,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:10,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:10,351 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:26:10,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:10,354 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:26:10,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:10,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1805122240, now seen corresponding path program 1 times [2021-12-06 20:26:10,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:10,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314081687] [2021-12-06 20:26:10,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:10,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:10,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:10,359 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:26:10,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:10,364 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:26:10,384 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 20:26:10,384 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 20:26:10,384 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 20:26:10,384 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 20:26:10,384 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 20:26:10,384 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:10,384 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 20:26:10,384 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 20:26:10,384 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration2_Loop [2021-12-06 20:26:10,384 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 20:26:10,384 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 20:26:10,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:10,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:10,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:10,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:10,429 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 20:26:10,429 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 20:26:10,429 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:10,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:10,430 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:10,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-06 20:26:10,431 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:10,432 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:10,448 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:10,448 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: [] [2021-12-06 20:26:10,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-06 20:26:10,473 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:10,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:10,474 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:10,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-06 20:26:10,475 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:10,475 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:10,488 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:10,489 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:10,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-12-06 20:26:10,508 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:10,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:10,510 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:10,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-06 20:26:10,546 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:10,547 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:10,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-06 20:26:10,573 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:10,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:10,574 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:10,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-06 20:26:10,576 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 20:26:10,576 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:10,597 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:10,597 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=0} Honda state: {ULTIMATE.start_main_~c~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=0}, {ULTIMATE.start_main_~c~0#1=2}, {ULTIMATE.start_main_~c~0#1=-1}] Lambdas: [6, 1, 1] Nus: [0, 0] [2021-12-06 20:26:10,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-12-06 20:26:10,615 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:10,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:10,616 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:10,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-06 20:26:10,617 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:10,617 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:10,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-12-06 20:26:10,644 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:10,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:10,645 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:10,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-06 20:26:10,646 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 20:26:10,646 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:10,722 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:10,722 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-8, ULTIMATE.start_main_~y~0#1=-8} Honda state: {ULTIMATE.start_main_~x~0#1=-8, ULTIMATE.start_main_~y~0#1=-8} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~y~0#1=-1}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=1}] Lambdas: [5, 1, 1] Nus: [0, 0] [2021-12-06 20:26:10,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-06 20:26:10,752 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 20:26:10,752 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 20:26:10,752 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 20:26:10,752 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 20:26:10,753 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 20:26:10,753 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:10,753 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 20:26:10,753 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 20:26:10,753 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration2_Lasso [2021-12-06 20:26:10,753 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 20:26:10,753 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 20:26:10,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:10,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:10,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:10,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:10,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:10,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:10,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:10,802 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 20:26:10,802 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 20:26:10,802 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:10,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:10,803 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:10,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-06 20:26:10,804 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:10,804 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:10,817 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:10,817 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_4=0} Honda state: {v_rep~unnamed0~0~false_4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:10,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-12-06 20:26:10,836 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:10,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:10,837 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:10,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-06 20:26:10,838 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:10,838 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:10,846 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:10,846 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:10,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-06 20:26:10,864 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:10,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:10,865 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:10,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-06 20:26:10,866 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:10,866 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:10,874 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:10,874 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:10,894 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-06 20:26:10,894 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:10,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:10,895 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:10,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-06 20:26:10,896 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:10,896 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:10,904 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:10,904 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:10,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-12-06 20:26:10,924 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:10,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:10,925 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:10,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-06 20:26:10,926 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:10,926 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:10,939 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:10,939 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_4=1} Honda state: {v_rep~unnamed0~0~true_4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:10,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-12-06 20:26:10,958 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:10,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:10,958 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:10,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-06 20:26:10,963 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:10,963 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:10,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-06 20:26:10,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-12-06 20:26:10,995 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:10,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:10,996 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:10,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-06 20:26:10,997 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 20:26:10,997 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:11,176 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 20:26:11,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-12-06 20:26:11,178 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 20:26:11,178 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 20:26:11,178 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 20:26:11,178 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 20:26:11,178 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 20:26:11,178 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:11,178 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 20:26:11,179 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 20:26:11,179 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration2_Lasso [2021-12-06 20:26:11,179 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 20:26:11,179 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 20:26:11,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:11,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:11,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:11,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:11,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:11,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:11,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:11,233 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 20:26:11,233 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 20:26:11,234 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:11,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:11,235 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:11,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-06 20:26:11,236 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 [2021-12-06 20:26:11,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:11,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:11,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:26:11,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:11,245 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 20:26:11,246 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 20:26:11,249 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:26:11,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-12-06 20:26:11,268 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:11,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:11,269 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:11,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-06 20:26:11,271 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 [2021-12-06 20:26:11,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:11,278 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:11,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:26:11,278 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:11,280 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 20:26:11,280 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 20:26:11,283 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:26:11,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-12-06 20:26:11,302 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:11,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:11,303 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:11,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-06 20:26:11,304 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 [2021-12-06 20:26:11,311 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:11,311 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:26:11,311 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:11,311 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:26:11,311 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:11,312 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:26:11,312 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:26:11,313 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:26:11,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-06 20:26:11,331 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:11,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:11,332 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:11,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-06 20:26:11,333 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 [2021-12-06 20:26:11,340 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:11,340 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:26:11,341 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:11,341 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:26:11,341 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:11,341 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:26:11,341 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:26:11,342 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:26:11,360 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-12-06 20:26:11,360 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:11,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:11,361 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:11,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-06 20:26:11,362 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 [2021-12-06 20:26:11,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:11,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:11,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:26:11,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:11,371 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 20:26:11,371 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 20:26:11,374 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:26:11,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-12-06 20:26:11,402 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:11,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:11,403 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:11,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-06 20:26:11,404 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 [2021-12-06 20:26:11,411 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:11,411 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:26:11,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:11,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:26:11,412 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:11,412 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:26:11,412 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:26:11,413 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:26:11,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-12-06 20:26:11,432 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:11,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:11,432 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:11,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-06 20:26:11,434 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 [2021-12-06 20:26:11,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:11,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:11,441 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-06 20:26:11,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:11,448 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-12-06 20:26:11,449 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-06 20:26:11,463 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 20:26:11,477 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-12-06 20:26:11,477 INFO L444 ModelExtractionUtils]: 7 out of 16 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-12-06 20:26:11,477 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:11,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:11,478 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:11,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-12-06 20:26:11,479 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 20:26:11,488 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2021-12-06 20:26:11,488 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 20:26:11,488 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [2*ULTIMATE.start_main_~x~0#1 - 1 >= 0] [2021-12-06 20:26:11,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-12-06 20:26:11,509 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-12-06 20:26:11,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:11,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:11,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 20:26:11,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:26:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:11,536 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 20:26:11,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:26:11,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:26:11,553 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-12-06 20:26:11,554 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-12-06 20:26:11,574 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 17 states and 22 transitions. Complement of second has 5 states. [2021-12-06 20:26:11,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 0 non-accepting loop states 2 accepting loop states [2021-12-06 20:26:11,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-12-06 20:26:11,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2021-12-06 20:26:11,575 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 4 letters. Loop has 3 letters. [2021-12-06 20:26:11,575 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:26:11,575 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 20:26:11,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:11,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:11,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 20:26:11,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:26:11,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:11,601 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 20:26:11,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:26:11,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:26:11,620 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2021-12-06 20:26:11,620 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-12-06 20:26:11,638 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 22 states and 27 transitions. Complement of second has 6 states. [2021-12-06 20:26:11,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 20:26:11,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-12-06 20:26:11,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2021-12-06 20:26:11,640 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 4 letters. Loop has 3 letters. [2021-12-06 20:26:11,640 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:26:11,640 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 7 letters. Loop has 3 letters. [2021-12-06 20:26:11,640 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:26:11,640 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 4 letters. Loop has 6 letters. [2021-12-06 20:26:11,640 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:26:11,640 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2021-12-06 20:26:11,642 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 20:26:11,642 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 14 states and 17 transitions. [2021-12-06 20:26:11,642 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-12-06 20:26:11,643 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-12-06 20:26:11,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2021-12-06 20:26:11,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 20:26:11,643 INFO L681 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2021-12-06 20:26:11,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2021-12-06 20:26:11,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 11. [2021-12-06 20:26:11,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 10 states have internal predecessors, (13), 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) [2021-12-06 20:26:11,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2021-12-06 20:26:11,644 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-12-06 20:26:11,644 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-12-06 20:26:11,644 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-06 20:26:11,645 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2021-12-06 20:26:11,645 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 20:26:11,645 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 20:26:11,645 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 20:26:11,646 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-06 20:26:11,646 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 20:26:11,646 INFO L791 eck$LassoCheckResult]: Stem: 225#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 226#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 228#L11 assume main_~x~0#1 > 0 && main_~y~0#1 > 0; 218#L12-2 assume !!!(0 == main_~x~0#1); 219#L13 assume main_~x~0#1 > main_~y~0#1;main_~x~0#1 := main_~y~0#1; 223#L13-2 main_~c~0#1 := 1 + main_~c~0#1; 227#L12-2 [2021-12-06 20:26:11,646 INFO L793 eck$LassoCheckResult]: Loop: 227#L12-2 assume !!!(0 == main_~x~0#1); 221#L13 assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := main_~x~0#1 - 1; 222#L13-2 main_~c~0#1 := 1 + main_~c~0#1; 227#L12-2 [2021-12-06 20:26:11,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:11,646 INFO L85 PathProgramCache]: Analyzing trace with hash 889513680, now seen corresponding path program 2 times [2021-12-06 20:26:11,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:11,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661599168] [2021-12-06 20:26:11,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:11,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:11,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:11,651 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:26:11,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:11,655 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:26:11,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:11,655 INFO L85 PathProgramCache]: Analyzing trace with hash 43855, now seen corresponding path program 2 times [2021-12-06 20:26:11,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:11,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454781587] [2021-12-06 20:26:11,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:11,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:11,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:11,659 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:26:11,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:11,662 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:26:11,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:11,662 INFO L85 PathProgramCache]: Analyzing trace with hash -446161376, now seen corresponding path program 1 times [2021-12-06 20:26:11,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:11,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537909917] [2021-12-06 20:26:11,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:11,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:11,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:11,667 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:26:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:11,672 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:26:11,688 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 20:26:11,688 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 20:26:11,688 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 20:26:11,688 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 20:26:11,688 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 20:26:11,688 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:11,688 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 20:26:11,688 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 20:26:11,688 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration3_Loop [2021-12-06 20:26:11,688 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 20:26:11,688 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 20:26:11,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:11,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:11,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:11,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:11,725 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 20:26:11,726 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 20:26:11,726 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:11,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:11,726 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:11,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-12-06 20:26:11,728 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:11,728 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:11,740 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:11,740 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_6=1} Honda state: {v_rep~unnamed0~0~true_6=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:11,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-12-06 20:26:11,759 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:11,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:11,760 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:11,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-12-06 20:26:11,761 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:11,761 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:11,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-12-06 20:26:11,787 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:11,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:11,788 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:11,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-12-06 20:26:11,789 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 20:26:11,789 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:11,813 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:11,813 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~y~0#1=-1} Honda state: {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~y~0#1=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~y~0#1=0}] Lambdas: [5, 11, 1] Nus: [0, 0] [2021-12-06 20:26:11,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-12-06 20:26:11,831 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:11,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:11,831 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:11,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-12-06 20:26:11,833 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:11,833 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:11,859 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-12-06 20:26:11,859 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:11,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:11,860 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:11,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-12-06 20:26:11,861 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 20:26:11,861 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:11,880 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:11,880 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=0} Honda state: {ULTIMATE.start_main_~c~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=0}, {ULTIMATE.start_main_~c~0#1=2}, {ULTIMATE.start_main_~c~0#1=-1}] Lambdas: [6, 1, 1] Nus: [0, 0] [2021-12-06 20:26:11,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-12-06 20:26:11,898 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:11,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:11,899 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:11,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-12-06 20:26:11,900 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:11,900 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:11,913 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:11,913 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_6=0} Honda state: {v_rep~unnamed0~0~false_6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:11,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-12-06 20:26:11,951 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 20:26:11,951 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 20:26:11,952 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 20:26:11,952 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 20:26:11,952 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 20:26:11,952 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:11,952 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 20:26:11,952 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 20:26:11,952 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration3_Lasso [2021-12-06 20:26:11,952 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 20:26:11,952 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 20:26:11,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:11,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:11,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:11,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:11,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:11,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:11,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-12-06 20:26:11,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:11,997 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 20:26:11,997 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 20:26:11,997 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:11,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:11,997 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:12,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-12-06 20:26:12,000 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:12,001 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:12,008 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:12,008 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:12,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-12-06 20:26:12,027 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:12,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:12,027 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:12,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-12-06 20:26:12,029 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:12,029 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:12,036 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:12,037 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:12,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-12-06 20:26:12,055 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:12,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:12,056 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:12,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-12-06 20:26:12,057 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:12,057 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:12,069 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:12,069 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:12,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-12-06 20:26:12,087 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:12,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:12,088 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:12,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-12-06 20:26:12,089 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:12,089 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:12,097 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:12,097 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:12,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-12-06 20:26:12,115 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:12,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:12,116 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:12,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-12-06 20:26:12,117 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:12,117 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:12,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-12-06 20:26:12,143 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:12,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:12,144 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:12,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-12-06 20:26:12,145 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 20:26:12,145 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:12,187 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 20:26:12,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-12-06 20:26:12,189 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 20:26:12,189 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 20:26:12,189 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 20:26:12,189 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 20:26:12,190 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 20:26:12,190 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:12,190 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 20:26:12,190 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 20:26:12,190 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration3_Lasso [2021-12-06 20:26:12,190 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 20:26:12,190 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 20:26:12,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:12,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:12,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:12,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:12,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:12,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:12,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:12,237 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 20:26:12,238 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 20:26:12,238 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:12,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:12,238 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:12,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-12-06 20:26:12,239 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 [2021-12-06 20:26:12,246 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:12,246 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:26:12,247 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:12,247 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:26:12,247 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:12,247 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:26:12,247 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:26:12,248 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:26:12,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-12-06 20:26:12,266 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:12,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:12,267 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:12,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-12-06 20:26:12,268 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 [2021-12-06 20:26:12,275 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:12,275 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:26:12,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:12,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:26:12,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:12,275 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:26:12,276 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:26:12,276 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:26:12,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-12-06 20:26:12,294 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:12,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:12,295 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:12,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-12-06 20:26:12,297 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 [2021-12-06 20:26:12,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:12,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:12,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:26:12,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:12,306 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 20:26:12,306 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 20:26:12,309 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:26:12,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-12-06 20:26:12,327 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:12,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:12,328 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:12,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-12-06 20:26:12,329 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 [2021-12-06 20:26:12,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:12,336 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:26:12,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:12,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:26:12,336 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:12,336 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:26:12,336 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:26:12,337 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:26:12,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-12-06 20:26:12,356 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:12,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:12,356 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:12,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-12-06 20:26:12,357 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 [2021-12-06 20:26:12,364 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:12,364 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:12,364 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-06 20:26:12,364 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:12,368 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-12-06 20:26:12,368 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-06 20:26:12,382 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 20:26:12,394 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-12-06 20:26:12,394 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-12-06 20:26:12,394 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:12,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:12,395 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:12,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-12-06 20:26:12,396 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 20:26:12,405 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2021-12-06 20:26:12,405 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 20:26:12,405 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [1*ULTIMATE.start_main_~x~0#1 >= 0] [2021-12-06 20:26:12,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-12-06 20:26:12,425 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-12-06 20:26:12,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:12,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:12,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 20:26:12,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:26:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:12,461 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 20:26:12,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:26:12,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:26:12,491 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2021-12-06 20:26:12,491 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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) [2021-12-06 20:26:12,530 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 29 states and 36 transitions. Complement of second has 10 states. [2021-12-06 20:26:12,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 3 stem states 2 non-accepting loop states 2 accepting loop states [2021-12-06 20:26:12,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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) [2021-12-06 20:26:12,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 13 transitions. [2021-12-06 20:26:12,531 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 13 transitions. Stem has 6 letters. Loop has 3 letters. [2021-12-06 20:26:12,532 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:26:12,532 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 13 transitions. Stem has 9 letters. Loop has 3 letters. [2021-12-06 20:26:12,532 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:26:12,532 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 13 transitions. Stem has 6 letters. Loop has 6 letters. [2021-12-06 20:26:12,532 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:26:12,532 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2021-12-06 20:26:12,534 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 20:26:12,534 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 20 states and 25 transitions. [2021-12-06 20:26:12,534 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-12-06 20:26:12,534 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-12-06 20:26:12,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 25 transitions. [2021-12-06 20:26:12,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 20:26:12,535 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-12-06 20:26:12,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 25 transitions. [2021-12-06 20:26:12,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 12. [2021-12-06 20:26:12,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 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) [2021-12-06 20:26:12,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2021-12-06 20:26:12,537 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-12-06 20:26:12,537 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-12-06 20:26:12,537 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-06 20:26:12,537 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2021-12-06 20:26:12,537 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 20:26:12,537 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 20:26:12,537 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 20:26:12,538 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2021-12-06 20:26:12,538 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 20:26:12,538 INFO L791 eck$LassoCheckResult]: Stem: 337#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 338#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 340#L11 assume main_~x~0#1 > 0 && main_~y~0#1 > 0; 330#L12-2 assume !!!(0 == main_~x~0#1); 331#L13 assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := main_~x~0#1 - 1; 336#L13-2 main_~c~0#1 := 1 + main_~c~0#1; 332#L12-2 assume !!!(0 == main_~x~0#1); 333#L13 assume main_~x~0#1 > main_~y~0#1;main_~x~0#1 := main_~y~0#1; 341#L13-2 main_~c~0#1 := 1 + main_~c~0#1; 339#L12-2 [2021-12-06 20:26:12,538 INFO L793 eck$LassoCheckResult]: Loop: 339#L12-2 assume !!!(0 == main_~x~0#1); 334#L13 assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := main_~x~0#1 - 1; 335#L13-2 main_~c~0#1 := 1 + main_~c~0#1; 339#L12-2 [2021-12-06 20:26:12,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:12,539 INFO L85 PathProgramCache]: Analyzing trace with hash -444314396, now seen corresponding path program 2 times [2021-12-06 20:26:12,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:12,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527032163] [2021-12-06 20:26:12,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:12,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:12,569 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:26:12,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:26:12,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527032163] [2021-12-06 20:26:12,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527032163] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:26:12,570 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:26:12,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:26:12,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535581089] [2021-12-06 20:26:12,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:26:12,571 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 20:26:12,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:12,572 INFO L85 PathProgramCache]: Analyzing trace with hash 43855, now seen corresponding path program 3 times [2021-12-06 20:26:12,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:12,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863428036] [2021-12-06 20:26:12,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:12,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:12,575 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:26:12,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:12,577 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:26:12,589 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 20:26:12,589 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 20:26:12,590 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 20:26:12,590 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 20:26:12,590 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 20:26:12,590 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:12,590 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 20:26:12,590 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 20:26:12,590 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration4_Loop [2021-12-06 20:26:12,590 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 20:26:12,590 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 20:26:12,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:12,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:12,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:12,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:12,633 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 20:26:12,633 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 20:26:12,633 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:12,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:12,634 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:12,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-12-06 20:26:12,635 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:12,635 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:12,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-12-06 20:26:12,662 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:12,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:12,663 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:12,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-12-06 20:26:12,664 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 20:26:12,664 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:12,688 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:12,688 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~y~0#1=-1} Honda state: {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~y~0#1=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~y~0#1=0}] Lambdas: [5, 11, 1] Nus: [0, 0] [2021-12-06 20:26:12,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2021-12-06 20:26:12,707 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:12,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:12,708 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:12,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-12-06 20:26:12,709 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:12,709 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:12,721 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:12,721 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:12,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-12-06 20:26:12,740 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:12,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:12,740 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:12,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-12-06 20:26:12,741 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:12,741 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:12,754 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:12,754 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:12,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-12-06 20:26:12,772 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:12,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:12,773 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:12,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-12-06 20:26:12,776 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:12,776 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:12,794 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-12-06 20:26:12,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2021-12-06 20:26:12,802 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:12,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:12,802 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:12,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-12-06 20:26:12,803 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 20:26:12,803 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:12,823 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:12,823 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=0} Honda state: {ULTIMATE.start_main_~c~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=0}, {ULTIMATE.start_main_~c~0#1=2}, {ULTIMATE.start_main_~c~0#1=-1}] Lambdas: [6, 1, 1] Nus: [0, 0] [2021-12-06 20:26:12,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-12-06 20:26:12,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:26:12,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:26:12,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:26:12,844 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-12-06 20:26:12,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:26:12,853 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2021-12-06 20:26:12,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:26:12,854 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 20 transitions. [2021-12-06 20:26:12,854 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 20:26:12,855 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 14 states and 15 transitions. [2021-12-06 20:26:12,855 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-12-06 20:26:12,855 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-12-06 20:26:12,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 15 transitions. [2021-12-06 20:26:12,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 20:26:12,855 INFO L681 BuchiCegarLoop]: Abstraction has 14 states and 15 transitions. [2021-12-06 20:26:12,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 15 transitions. [2021-12-06 20:26:12,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2021-12-06 20:26:12,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 states have internal predecessors, (13), 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) [2021-12-06 20:26:12,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2021-12-06 20:26:12,857 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2021-12-06 20:26:12,857 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2021-12-06 20:26:12,857 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-06 20:26:12,857 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 13 transitions. [2021-12-06 20:26:12,858 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 20:26:12,858 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 20:26:12,858 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 20:26:12,858 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1] [2021-12-06 20:26:12,858 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 20:26:12,858 INFO L791 eck$LassoCheckResult]: Stem: 372#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 373#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 374#L11 assume main_~x~0#1 > 0 && main_~y~0#1 > 0; 375#L12-2 assume !!!(0 == main_~x~0#1); 370#L13 assume main_~x~0#1 > main_~y~0#1;main_~x~0#1 := main_~y~0#1; 371#L13-2 main_~c~0#1 := 1 + main_~c~0#1; 367#L12-2 assume !!!(0 == main_~x~0#1); 368#L13 assume main_~x~0#1 > main_~y~0#1;main_~x~0#1 := main_~y~0#1; 376#L13-2 main_~c~0#1 := 1 + main_~c~0#1; 365#L12-2 [2021-12-06 20:26:12,858 INFO L793 eck$LassoCheckResult]: Loop: 365#L12-2 assume !!!(0 == main_~x~0#1); 366#L13 assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := main_~x~0#1 - 1; 369#L13-2 main_~c~0#1 := 1 + main_~c~0#1; 365#L12-2 [2021-12-06 20:26:12,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:12,859 INFO L85 PathProgramCache]: Analyzing trace with hash -446161438, now seen corresponding path program 3 times [2021-12-06 20:26:12,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:12,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846754668] [2021-12-06 20:26:12,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:12,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:12,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:12,875 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:26:12,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:26:12,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846754668] [2021-12-06 20:26:12,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846754668] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:26:12,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:26:12,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:26:12,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898843901] [2021-12-06 20:26:12,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:26:12,876 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 20:26:12,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:12,877 INFO L85 PathProgramCache]: Analyzing trace with hash 43855, now seen corresponding path program 4 times [2021-12-06 20:26:12,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:12,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500944717] [2021-12-06 20:26:12,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:12,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:12,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:12,879 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:26:12,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:12,882 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:26:12,896 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 20:26:12,896 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 20:26:12,896 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 20:26:12,896 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 20:26:12,896 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 20:26:12,896 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:12,896 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 20:26:12,896 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 20:26:12,896 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration5_Loop [2021-12-06 20:26:12,897 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 20:26:12,897 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 20:26:12,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:12,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:12,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:12,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:12,934 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 20:26:12,934 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 20:26:12,934 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:12,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:12,935 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:12,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-12-06 20:26:12,936 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:12,936 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:12,949 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:12,949 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_10=0} Honda state: {v_rep~unnamed0~0~false_10=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:12,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-12-06 20:26:12,968 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:12,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:12,968 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:12,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-12-06 20:26:12,969 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:12,969 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:12,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-12-06 20:26:12,996 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:12,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:12,997 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:12,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-12-06 20:26:13,000 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 20:26:13,000 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:13,024 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:13,024 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~y~0#1=-1} Honda state: {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~y~0#1=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~y~0#1=0}] Lambdas: [5, 11, 1] Nus: [0, 0] [2021-12-06 20:26:13,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-12-06 20:26:13,042 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:13,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:13,043 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:13,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-12-06 20:26:13,044 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:13,044 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:13,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-12-06 20:26:13,070 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:13,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:13,071 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:13,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-12-06 20:26:13,073 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 20:26:13,073 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:13,093 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:13,093 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=0} Honda state: {ULTIMATE.start_main_~c~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=0}, {ULTIMATE.start_main_~c~0#1=2}, {ULTIMATE.start_main_~c~0#1=-1}] Lambdas: [6, 1, 1] Nus: [0, 0] [2021-12-06 20:26:13,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-12-06 20:26:13,111 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:13,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:13,112 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:13,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-12-06 20:26:13,113 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:13,113 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:13,126 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:13,126 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_10=1} Honda state: {v_rep~unnamed0~0~true_10=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:13,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-12-06 20:26:13,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:26:13,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:26:13,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:26:13,144 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-12-06 20:26:13,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:26:13,148 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2021-12-06 20:26:13,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:26:13,148 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 7 transitions. [2021-12-06 20:26:13,149 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 20:26:13,149 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. [2021-12-06 20:26:13,149 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-06 20:26:13,149 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-06 20:26:13,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-06 20:26:13,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:26:13,149 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 20:26:13,149 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 20:26:13,149 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 20:26:13,149 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-06 20:26:13,149 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-06 20:26:13,149 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 20:26:13,149 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-06 20:26:13,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 08:26:13 BoogieIcfgContainer [2021-12-06 20:26:13,154 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 20:26:13,154 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 20:26:13,154 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 20:26:13,154 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 20:26:13,154 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:26:09" (3/4) ... [2021-12-06 20:26:13,156 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 20:26:13,156 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 20:26:13,157 INFO L158 Benchmark]: Toolchain (without parser) took 4206.59ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 54.1MB in the beginning and 66.9MB in the end (delta: -12.8MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2021-12-06 20:26:13,157 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 92.3MB. Free memory was 70.2MB in the beginning and 70.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:26:13,157 INFO L158 Benchmark]: CACSL2BoogieTranslator took 166.73ms. Allocated memory is still 92.3MB. Free memory was 53.9MB in the beginning and 69.9MB in the end (delta: -15.9MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2021-12-06 20:26:13,158 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.65ms. Allocated memory is still 92.3MB. Free memory was 69.9MB in the beginning and 68.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:26:13,158 INFO L158 Benchmark]: Boogie Preprocessor took 12.12ms. Allocated memory is still 92.3MB. Free memory was 68.6MB in the beginning and 67.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 20:26:13,158 INFO L158 Benchmark]: RCFGBuilder took 154.25ms. Allocated memory is still 92.3MB. Free memory was 67.4MB in the beginning and 59.4MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 20:26:13,158 INFO L158 Benchmark]: BuchiAutomizer took 3844.71ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 59.4MB in the beginning and 66.9MB in the end (delta: -7.5MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2021-12-06 20:26:13,158 INFO L158 Benchmark]: Witness Printer took 2.35ms. Allocated memory is still 111.1MB. Free memory is still 66.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:26:13,160 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 92.3MB. Free memory was 70.2MB in the beginning and 70.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 166.73ms. Allocated memory is still 92.3MB. Free memory was 53.9MB in the beginning and 69.9MB in the end (delta: -15.9MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.65ms. Allocated memory is still 92.3MB. Free memory was 69.9MB in the beginning and 68.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.12ms. Allocated memory is still 92.3MB. Free memory was 68.6MB in the beginning and 67.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 154.25ms. Allocated memory is still 92.3MB. Free memory was 67.4MB in the beginning and 59.4MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3844.71ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 59.4MB in the beginning and 66.9MB in the end (delta: -7.5MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * Witness Printer took 2.35ms. Allocated memory is still 111.1MB. Free memory is still 66.9MB. 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 5 terminating modules (2 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * y + x and consists of 4 locations. One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function x and consists of 7 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 3.3s. 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, 15 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 3. Nontrivial modules had stage [2, 1, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 56 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 38 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN2 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax156 hnf100 lsp46 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq165 hnf95 smp100 dnf157 smp100 tf103 neg94 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 56ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 19 LassoNonterminationAnalysisSatUnbounded: 8 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-06 20:26:13,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdcfb59-7884-4ac5-a5ba-82ea7611070b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE