./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt --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 687269bb6882b72a3d48999f1e5c55a1d5283a94 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 01:02:12,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:02:12,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:02:12,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:02:12,328 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:02:12,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:02:12,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:02:12,333 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:02:12,336 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:02:12,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:02:12,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:02:12,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:02:12,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:02:12,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:02:12,343 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:02:12,344 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:02:12,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:02:12,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:02:12,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:02:12,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:02:12,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:02:12,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:02:12,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:02:12,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:02:12,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:02:12,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:02:12,362 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:02:12,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:02:12,364 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:02:12,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:02:12,366 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:02:12,367 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:02:12,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:02:12,369 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:02:12,371 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:02:12,371 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:02:12,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:02:12,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:02:12,373 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:02:12,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:02:12,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:02:12,376 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-13 01:02:12,428 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:02:12,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:02:12,429 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:02:12,430 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:02:12,431 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:02:12,432 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:02:12,432 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:02:12,433 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 01:02:12,433 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 01:02:12,433 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 01:02:12,434 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 01:02:12,434 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 01:02:12,435 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 01:02:12,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:02:12,435 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 01:02:12,436 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:02:12,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:02:12,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 01:02:12,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 01:02:12,441 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 01:02:12,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:02:12,441 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 01:02:12,441 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:02:12,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 01:02:12,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:02:12,443 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:02:12,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:02:12,445 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:02:12,446 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:02:12,448 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 01:02:12,448 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_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 687269bb6882b72a3d48999f1e5c55a1d5283a94 [2021-10-13 01:02:12,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:02:12,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:02:12,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:02:12,766 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:02:12,767 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:02:12,768 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2021-10-13 01:02:12,867 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/data/923150f71/0094215f5b164cca9de30dc61379ae3a/FLAG6b5cc1c2e [2021-10-13 01:02:13,391 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:02:13,392 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2021-10-13 01:02:13,400 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/data/923150f71/0094215f5b164cca9de30dc61379ae3a/FLAG6b5cc1c2e [2021-10-13 01:02:13,756 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/data/923150f71/0094215f5b164cca9de30dc61379ae3a [2021-10-13 01:02:13,758 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:02:13,760 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:02:13,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:02:13,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:02:13,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:02:13,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:02:13" (1/1) ... [2021-10-13 01:02:13,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bedc8f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:02:13, skipping insertion in model container [2021-10-13 01:02:13,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:02:13" (1/1) ... [2021-10-13 01:02:13,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:02:13,807 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:02:13,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:02:13,970 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:02:14,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:02:14,029 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:02:14,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:02:14 WrapperNode [2021-10-13 01:02:14,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:02:14,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:02:14,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:02:14,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:02:14,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:02:14" (1/1) ... [2021-10-13 01:02:14,048 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:02:14" (1/1) ... [2021-10-13 01:02:14,066 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:02:14,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:02:14,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:02:14,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:02:14,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:02:14" (1/1) ... [2021-10-13 01:02:14,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:02:14" (1/1) ... [2021-10-13 01:02:14,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:02:14" (1/1) ... [2021-10-13 01:02:14,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:02:14" (1/1) ... [2021-10-13 01:02:14,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:02:14" (1/1) ... [2021-10-13 01:02:14,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:02:14" (1/1) ... [2021-10-13 01:02:14,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:02:14" (1/1) ... [2021-10-13 01:02:14,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:02:14,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:02:14,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:02:14,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:02:14,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:02:14" (1/1) ... [2021-10-13 01:02:14,097 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:14,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:14,129 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:14,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 01:02:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:02:14,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:02:14,336 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:02:14,336 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-13 01:02:14,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:02:14 BoogieIcfgContainer [2021-10-13 01:02:14,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:02:14,339 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 01:02:14,340 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 01:02:14,344 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 01:02:14,345 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:02:14,345 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 01:02:13" (1/3) ... [2021-10-13 01:02:14,347 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@57173f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:02:14, skipping insertion in model container [2021-10-13 01:02:14,347 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:02:14,347 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:02:14" (2/3) ... [2021-10-13 01:02:14,348 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@57173f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:02:14, skipping insertion in model container [2021-10-13 01:02:14,348 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:02:14,348 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:02:14" (3/3) ... [2021-10-13 01:02:14,350 INFO L389 chiAutomizerObserver]: Analyzing ICFG TelAviv-Amir-Minimum.c [2021-10-13 01:02:14,399 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 01:02:14,400 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 01:02:14,400 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 01:02:14,400 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 01:02:14,400 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 01:02:14,400 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 01:02:14,401 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 01:02:14,401 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 01:02:14,417 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 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) [2021-10-13 01:02:14,437 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-13 01:02:14,438 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:02:14,438 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:02:14,445 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-13 01:02:14,445 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-13 01:02:14,445 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 01:02:14,446 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 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) [2021-10-13 01:02:14,448 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-13 01:02:14,448 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:02:14,448 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:02:14,449 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-13 01:02:14,449 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-13 01:02:14,456 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 4#L25-2true [2021-10-13 01:02:14,457 INFO L793 eck$LassoCheckResult]: Loop: 4#L25-2true assume !!(main_~x~0 > 0 && main_~y~0 > 0); 9#L25true assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 11#L26true assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 8#L26-2true main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 4#L25-2true [2021-10-13 01:02:14,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:14,463 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-13 01:02:14,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:14,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393168061] [2021-10-13 01:02:14,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:14,490 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:14,601 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:14,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:14,632 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:14,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:14,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1234440, now seen corresponding path program 1 times [2021-10-13 01:02:14,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:14,639 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014254029] [2021-10-13 01:02:14,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:14,640 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:14,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:14,669 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:14,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:14,696 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:14,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:14,703 INFO L82 PathProgramCache]: Analyzing trace with hash 29863591, now seen corresponding path program 1 times [2021-10-13 01:02:14,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:14,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404948386] [2021-10-13 01:02:14,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:14,705 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:14,721 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:14,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:14,731 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:14,839 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:02:14,839 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:02:14,840 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:02:14,840 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:02:14,840 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:02:14,840 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:14,840 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:02:14,841 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:02:14,841 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration1_Loop [2021-10-13 01:02:14,841 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:02:14,841 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:02:14,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:14,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:14,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:14,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:14,966 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:02:14,967 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:02:14,969 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:14,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:14,982 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:14,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 01:02:14,997 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:02:14,997 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:15,025 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:02:15,026 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: [] [2021-10-13 01:02:15,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:15,067 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:15,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:15,069 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:15,085 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:02:15,085 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:15,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 01:02:15,117 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:02:15,118 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: [] [2021-10-13 01:02:15,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:15,152 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:15,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:15,154 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:15,161 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:02:15,162 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:15,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 01:02:15,190 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:02:15,190 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=-1} Honda state: {ULTIMATE.start_main_#t~nondet2=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:02:15,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:15,230 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:15,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:15,232 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:15,239 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:02:15,239 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:15,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 01:02:15,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:15,313 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:15,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:15,315 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:15,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 01:02:15,324 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:02:15,324 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:15,410 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:02:15,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:15,422 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:02:15,422 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:02:15,423 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:02:15,423 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:02:15,423 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:02:15,423 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:15,423 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:02:15,423 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:02:15,423 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration1_Loop [2021-10-13 01:02:15,424 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:02:15,424 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:02:15,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:15,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:15,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:15,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:15,511 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:02:15,516 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:02:15,517 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:15,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:15,519 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:15,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 01:02:15,529 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 [2021-10-13 01:02:15,538 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:02:15,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:02:15,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:02:15,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:02:15,543 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:02:15,544 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:02:15,561 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:02:15,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:15,598 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:15,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:15,601 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:15,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 01:02:15,609 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 [2021-10-13 01:02:15,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:02:15,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:02:15,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:02:15,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:02:15,620 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:02:15,621 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:02:15,643 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:02:15,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:15,680 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:15,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:15,682 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:15,693 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 [2021-10-13 01:02:15,702 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:02:15,703 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:02:15,703 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:02:15,703 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-13 01:02:15,703 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:02:15,705 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 01:02:15,705 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:02:15,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-13 01:02:15,721 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:02:15,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-10-13 01:02:15,753 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:15,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:15,755 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:15,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-13 01:02:15,757 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 [2021-10-13 01:02:15,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:02:15,766 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:02:15,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:02:15,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:02:15,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:02:15,769 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:02:15,769 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:02:15,793 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:02:15,796 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-13 01:02:15,796 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 01:02:15,797 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:15,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:15,799 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:15,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-13 01:02:15,800 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:02:15,800 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:02:15,800 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:02:15,801 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-13 01:02:15,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:15,827 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:02:15,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:15,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:15,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:02:15,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:15,890 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 01:02:15,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:15,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:02:15,994 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-13 01:02:15,996 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 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) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-10-13 01:02:16,055 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 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). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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 40 states and 55 transitions. Complement of second has 8 states. [2021-10-13 01:02:16,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 01:02:16,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-10-13 01:02:16,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2021-10-13 01:02:16,061 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-13 01:02:16,062 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:16,062 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-13 01:02:16,063 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:16,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 8 letters. [2021-10-13 01:02:16,063 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:16,064 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 55 transitions. [2021-10-13 01:02:16,069 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-13 01:02:16,074 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 21 states and 30 transitions. [2021-10-13 01:02:16,075 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-13 01:02:16,075 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-10-13 01:02:16,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 30 transitions. [2021-10-13 01:02:16,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:02:16,076 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2021-10-13 01:02:16,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 30 transitions. [2021-10-13 01:02:16,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17. [2021-10-13 01:02:16,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.411764705882353) internal successors, (24), 16 states have internal predecessors, (24), 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) [2021-10-13 01:02:16,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 24 transitions. [2021-10-13 01:02:16,109 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2021-10-13 01:02:16,109 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2021-10-13 01:02:16,110 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 01:02:16,110 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 24 transitions. [2021-10-13 01:02:16,115 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-13 01:02:16,115 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:02:16,115 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:02:16,119 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-13 01:02:16,122 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-13 01:02:16,122 INFO L791 eck$LassoCheckResult]: Stem: 99#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 100#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 96#L25 [2021-10-13 01:02:16,122 INFO L793 eck$LassoCheckResult]: Loop: 96#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 108#L26 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 - 1; 101#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 95#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 96#L25 [2021-10-13 01:02:16,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:16,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-13 01:02:16,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:16,125 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032526431] [2021-10-13 01:02:16,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:16,130 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:16,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:16,135 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:16,140 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:16,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:16,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1328732, now seen corresponding path program 1 times [2021-10-13 01:02:16,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:16,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048111849] [2021-10-13 01:02:16,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:16,141 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:16,163 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:16,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:16,174 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:16,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:16,174 INFO L82 PathProgramCache]: Analyzing trace with hash 925773253, now seen corresponding path program 1 times [2021-10-13 01:02:16,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:16,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292300117] [2021-10-13 01:02:16,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:16,225 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:16,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:16,286 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:16,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:16,306 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:16,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:16,364 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:02:16,364 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:02:16,364 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:02:16,365 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:02:16,365 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:02:16,365 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:16,365 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:02:16,365 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:02:16,365 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration2_Loop [2021-10-13 01:02:16,365 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:02:16,365 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:02:16,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:16,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:16,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:16,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:16,445 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:02:16,445 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:02:16,446 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:16,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:16,453 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:16,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-13 01:02:16,456 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:02:16,456 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:16,481 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:02:16,482 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: [] [2021-10-13 01:02:16,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:16,519 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:16,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:16,520 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:16,526 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:02:16,526 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:16,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-13 01:02:16,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:16,590 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:16,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:16,591 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:16,598 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:02:16,598 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:16,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-13 01:02:16,738 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:02:16,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:16,744 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:02:16,744 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:02:16,744 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:02:16,744 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:02:16,744 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:02:16,744 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:16,744 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:02:16,745 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:02:16,745 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration2_Loop [2021-10-13 01:02:16,745 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:02:16,745 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:02:16,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:16,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:16,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:16,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:16,851 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:02:16,851 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:02:16,852 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:16,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:16,854 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:16,866 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 [2021-10-13 01:02:16,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:02:16,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:02:16,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:02:16,877 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:02:16,884 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:02:16,884 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:02:16,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-13 01:02:16,905 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:02:16,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:16,947 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:16,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:16,949 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:16,957 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 [2021-10-13 01:02:16,968 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:02:16,968 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:02:16,968 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:02:16,968 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:02:16,968 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:02:16,972 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:02:16,972 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:02:16,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-13 01:02:16,997 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:02:17,001 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 01:02:17,002 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 01:02:17,002 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:17,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:17,003 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:17,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-13 01:02:17,012 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:02:17,019 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:02:17,019 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:02:17,019 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-13 01:02:17,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:17,070 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:02:17,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:17,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:17,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:02:17,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:17,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:17,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:02:17,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:17,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:02:17,153 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 [2021-10-13 01:02:17,153 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 10 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) [2021-10-13 01:02:17,185 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 10. 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 44 transitions. Complement of second has 7 states. [2021-10-13 01:02:17,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 01:02:17,186 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) [2021-10-13 01:02:17,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-10-13 01:02:17,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-13 01:02:17,187 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:17,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-13 01:02:17,188 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:17,188 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 8 letters. [2021-10-13 01:02:17,188 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:17,189 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 44 transitions. [2021-10-13 01:02:17,191 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-13 01:02:17,192 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 21 states and 30 transitions. [2021-10-13 01:02:17,192 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-10-13 01:02:17,193 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-10-13 01:02:17,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 30 transitions. [2021-10-13 01:02:17,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:02:17,193 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2021-10-13 01:02:17,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 30 transitions. [2021-10-13 01:02:17,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2021-10-13 01:02:17,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 18 states have internal predecessors, (27), 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) [2021-10-13 01:02:17,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 27 transitions. [2021-10-13 01:02:17,197 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2021-10-13 01:02:17,197 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2021-10-13 01:02:17,197 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 01:02:17,197 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 27 transitions. [2021-10-13 01:02:17,198 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-13 01:02:17,198 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:02:17,199 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:02:17,199 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-13 01:02:17,199 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-13 01:02:17,200 INFO L791 eck$LassoCheckResult]: Stem: 188#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 184#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 185#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 192#L33 [2021-10-13 01:02:17,200 INFO L793 eck$LassoCheckResult]: Loop: 192#L33 assume main_~x~0 < main_~y~0;main_~x~0 := main_~x~0 - 1; 195#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 190#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 198#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 192#L33 [2021-10-13 01:02:17,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:17,201 INFO L82 PathProgramCache]: Analyzing trace with hash 31084, now seen corresponding path program 1 times [2021-10-13 01:02:17,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:17,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487791367] [2021-10-13 01:02:17,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:17,202 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:17,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:17,207 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:17,212 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:17,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:17,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1696497, now seen corresponding path program 1 times [2021-10-13 01:02:17,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:17,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257847116] [2021-10-13 01:02:17,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:17,214 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:17,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:17,220 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:17,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:17,227 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:17,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:17,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1357271332, now seen corresponding path program 1 times [2021-10-13 01:02:17,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:17,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798808475] [2021-10-13 01:02:17,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:17,228 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:17,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:17,244 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:17,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:17,266 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:17,304 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:02:17,304 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:02:17,304 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:02:17,304 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:02:17,304 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:02:17,305 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:17,305 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:02:17,305 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:02:17,305 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration3_Loop [2021-10-13 01:02:17,305 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:02:17,306 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:02:17,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:17,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:17,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:17,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:17,395 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:02:17,395 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:02:17,395 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:17,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:17,397 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:17,434 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:02:17,434 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:17,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-13 01:02:17,447 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:02:17,447 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:02:17,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:17,479 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:17,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:17,480 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:17,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-13 01:02:17,481 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:02:17,482 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:17,497 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:02:17,497 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:02:17,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:17,522 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:17,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:17,523 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:17,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-13 01:02:17,533 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:02:17,533 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:17,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:17,598 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:17,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:17,599 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:17,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-13 01:02:17,601 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:02:17,601 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:17,741 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:02:17,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:17,744 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:02:17,744 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:02:17,744 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:02:17,744 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:02:17,745 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:02:17,745 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:17,745 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:02:17,745 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:02:17,745 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration3_Loop [2021-10-13 01:02:17,745 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:02:17,745 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:02:17,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:17,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:17,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:17,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:17,834 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:02:17,835 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:02:17,835 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:17,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:17,854 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:17,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-13 01:02:17,868 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 [2021-10-13 01:02:17,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:02:17,875 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:02:17,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:02:17,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:02:17,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:02:17,876 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:02:17,876 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:02:17,878 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:02:17,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:17,898 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:17,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:17,898 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:17,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-13 01:02:17,900 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 [2021-10-13 01:02:17,907 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:02:17,907 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:02:17,907 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:02:17,908 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:02:17,910 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:02:17,910 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:02:17,918 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:02:17,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:17,941 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:17,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:17,942 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:17,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-13 01:02:17,943 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 [2021-10-13 01:02:17,950 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:02:17,950 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:02:17,950 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:02:17,950 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:02:17,951 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:02:17,952 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:02:17,953 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:02:17,981 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:02:17,984 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-13 01:02:17,984 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 01:02:17,985 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:17,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:17,989 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:17,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-13 01:02:17,990 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:02:17,990 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:02:17,991 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:02:17,991 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-13 01:02:18,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:18,014 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:02:18,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:18,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:18,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:02:18,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:18,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:18,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:02:18,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:18,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:02:18,102 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-13 01:02:18,102 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 11 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) [2021-10-13 01:02:18,149 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 11. 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 32 states and 48 transitions. Complement of second has 7 states. [2021-10-13 01:02:18,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 01:02:18,149 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) [2021-10-13 01:02:18,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2021-10-13 01:02:18,150 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 4 letters. [2021-10-13 01:02:18,150 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:18,150 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 7 letters. Loop has 4 letters. [2021-10-13 01:02:18,151 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:18,151 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 8 letters. [2021-10-13 01:02:18,151 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:18,151 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 48 transitions. [2021-10-13 01:02:18,153 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-13 01:02:18,156 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 38 transitions. [2021-10-13 01:02:18,156 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-10-13 01:02:18,156 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-10-13 01:02:18,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 38 transitions. [2021-10-13 01:02:18,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:02:18,156 INFO L681 BuchiCegarLoop]: Abstraction has 26 states and 38 transitions. [2021-10-13 01:02:18,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 38 transitions. [2021-10-13 01:02:18,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2021-10-13 01:02:18,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 23 states have internal predecessors, (35), 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) [2021-10-13 01:02:18,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 35 transitions. [2021-10-13 01:02:18,161 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 35 transitions. [2021-10-13 01:02:18,161 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 35 transitions. [2021-10-13 01:02:18,161 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 01:02:18,161 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 35 transitions. [2021-10-13 01:02:18,162 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-13 01:02:18,162 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:02:18,163 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:02:18,163 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2021-10-13 01:02:18,163 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-13 01:02:18,164 INFO L791 eck$LassoCheckResult]: Stem: 285#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 286#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 291#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 292#L33 assume !(main_~x~0 < main_~y~0);main_~x~0 := main_~y~0 - 1; 295#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 299#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 300#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 297#L26 [2021-10-13 01:02:18,164 INFO L793 eck$LassoCheckResult]: Loop: 297#L26 assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 287#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 288#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 302#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 297#L26 [2021-10-13 01:02:18,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:18,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1357211759, now seen corresponding path program 1 times [2021-10-13 01:02:18,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:18,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408400904] [2021-10-13 01:02:18,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:18,165 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:18,179 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:18,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:18,192 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:18,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:18,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1419720, now seen corresponding path program 2 times [2021-10-13 01:02:18,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:18,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813211477] [2021-10-13 01:02:18,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:18,198 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:18,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:18,210 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:18,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:18,218 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:18,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:18,221 INFO L82 PathProgramCache]: Analyzing trace with hash -369493672, now seen corresponding path program 1 times [2021-10-13 01:02:18,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:18,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577558234] [2021-10-13 01:02:18,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:18,222 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:18,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:18,236 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:18,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:18,255 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:18,296 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:02:18,296 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:02:18,296 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:02:18,296 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:02:18,296 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:02:18,296 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:18,297 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:02:18,297 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:02:18,297 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration4_Loop [2021-10-13 01:02:18,297 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:02:18,297 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:02:18,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:18,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:18,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:18,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:18,395 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:02:18,395 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:02:18,396 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:18,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:18,398 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:18,404 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:02:18,404 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:18,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-13 01:02:18,434 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:02:18,434 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=-1} Honda state: {ULTIMATE.start_main_#t~nondet2=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:02:18,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:18,479 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:18,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:18,480 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:18,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-13 01:02:18,483 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:02:18,483 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:18,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:18,525 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:18,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:18,526 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:18,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-13 01:02:18,528 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:02:18,529 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:18,707 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:02:18,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:18,710 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:02:18,710 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:02:18,710 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:02:18,710 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:02:18,710 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:02:18,710 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:18,711 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:02:18,711 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:02:18,711 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration4_Loop [2021-10-13 01:02:18,711 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:02:18,711 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:02:18,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:18,717 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:18,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:18,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:18,783 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:02:18,783 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:02:18,783 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:18,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:18,815 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:18,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-13 01:02:18,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:18,829 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 [2021-10-13 01:02:18,843 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:02:18,844 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:02:18,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:02:18,844 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-13 01:02:18,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:02:18,845 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 01:02:18,846 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:02:18,875 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:02:18,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:18,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:18,902 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:18,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:18,902 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:18,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-13 01:02:18,904 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 [2021-10-13 01:02:18,913 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:02:18,913 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:02:18,913 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:02:18,913 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:02:18,913 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:02:18,915 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:02:18,915 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:02:18,918 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:02:18,921 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 01:02:18,921 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 01:02:18,921 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:18,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:18,922 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:18,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-13 01:02:18,924 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:02:18,924 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:02:18,924 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:02:18,924 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-13 01:02:18,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:18,948 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:02:18,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:18,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:02:18,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:19,020 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 01:02:19,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:19,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:02:19,078 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-13 01:02:19,079 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 35 transitions. cyclomatic complexity: 15 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-10-13 01:02:19,130 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 35 transitions. cyclomatic complexity: 15. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 78 states and 116 transitions. Complement of second has 7 states. [2021-10-13 01:02:19,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 01:02:19,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-10-13 01:02:19,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2021-10-13 01:02:19,134 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 7 letters. Loop has 4 letters. [2021-10-13 01:02:19,135 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:19,135 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 11 letters. Loop has 4 letters. [2021-10-13 01:02:19,137 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:19,139 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 7 letters. Loop has 8 letters. [2021-10-13 01:02:19,139 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:19,140 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 116 transitions. [2021-10-13 01:02:19,144 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-13 01:02:19,151 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 55 states and 80 transitions. [2021-10-13 01:02:19,152 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2021-10-13 01:02:19,152 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2021-10-13 01:02:19,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 80 transitions. [2021-10-13 01:02:19,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:02:19,153 INFO L681 BuchiCegarLoop]: Abstraction has 55 states and 80 transitions. [2021-10-13 01:02:19,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 80 transitions. [2021-10-13 01:02:19,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 42. [2021-10-13 01:02:19,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.5) internal successors, (63), 41 states have internal predecessors, (63), 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) [2021-10-13 01:02:19,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 63 transitions. [2021-10-13 01:02:19,165 INFO L704 BuchiCegarLoop]: Abstraction has 42 states and 63 transitions. [2021-10-13 01:02:19,165 INFO L587 BuchiCegarLoop]: Abstraction has 42 states and 63 transitions. [2021-10-13 01:02:19,165 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-13 01:02:19,165 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 63 transitions. [2021-10-13 01:02:19,167 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-13 01:02:19,171 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:02:19,171 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:02:19,172 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-13 01:02:19,173 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-13 01:02:19,173 INFO L791 eck$LassoCheckResult]: Stem: 445#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 446#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 469#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 470#L33 assume !(main_~x~0 < main_~y~0);main_~x~0 := main_~y~0 - 1; 462#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 463#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 473#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 474#L26 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 - 1; 447#L26-2 [2021-10-13 01:02:19,174 INFO L793 eck$LassoCheckResult]: Loop: 447#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 448#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 450#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 452#L26 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 - 1; 447#L26-2 [2021-10-13 01:02:19,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:19,174 INFO L82 PathProgramCache]: Analyzing trace with hash 876108449, now seen corresponding path program 1 times [2021-10-13 01:02:19,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:19,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162829019] [2021-10-13 01:02:19,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:19,175 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:19,190 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:19,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:19,203 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:19,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:19,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1529372, now seen corresponding path program 2 times [2021-10-13 01:02:19,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:19,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54358108] [2021-10-13 01:02:19,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:19,207 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:19,222 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:19,229 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:19,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:19,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1432445116, now seen corresponding path program 1 times [2021-10-13 01:02:19,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:19,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357385328] [2021-10-13 01:02:19,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:19,236 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:19,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:19,245 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:19,263 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:19,297 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:02:19,297 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:02:19,297 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:02:19,298 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:02:19,298 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:02:19,298 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:19,298 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:02:19,298 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:02:19,298 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration5_Loop [2021-10-13 01:02:19,298 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:02:19,299 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:02:19,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:19,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:19,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:19,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:19,359 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:02:19,360 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:02:19,360 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:19,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:19,361 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:19,371 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:02:19,371 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:19,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-13 01:02:19,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:19,436 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:19,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:19,438 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:19,440 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:02:19,440 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:19,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-13 01:02:19,491 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:02:19,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:19,493 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:02:19,493 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:02:19,494 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:02:19,494 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:02:19,494 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:02:19,494 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:19,494 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:02:19,494 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:02:19,494 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration5_Loop [2021-10-13 01:02:19,494 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:02:19,494 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:02:19,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:19,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:19,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:19,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:19,572 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:02:19,573 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:02:19,573 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:19,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:19,578 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:19,581 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 [2021-10-13 01:02:19,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:02:19,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:02:19,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:02:19,593 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:02:19,595 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:02:19,595 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:02:19,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-13 01:02:19,621 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:02:19,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:19,666 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:19,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:19,669 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:19,673 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 [2021-10-13 01:02:19,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:02:19,685 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:02:19,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:02:19,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:02:19,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:02:19,688 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:02:19,688 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:02:19,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-13 01:02:19,699 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:02:19,715 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 01:02:19,715 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 01:02:19,716 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:19,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:19,717 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:19,720 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:02:19,720 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:02:19,720 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:02:19,720 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-13 01:02:19,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-13 01:02:19,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-10-13 01:02:19,760 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:02:19,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:19,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:02:19,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:19,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:19,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:02:19,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:19,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:02:19,855 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 [2021-10-13 01:02:19,855 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 63 transitions. cyclomatic complexity: 28 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-10-13 01:02:19,901 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 63 transitions. cyclomatic complexity: 28. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 106 states and 158 transitions. Complement of second has 7 states. [2021-10-13 01:02:19,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 01:02:19,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-10-13 01:02:19,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-10-13 01:02:19,902 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 8 letters. Loop has 4 letters. [2021-10-13 01:02:19,903 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:19,903 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 12 letters. Loop has 4 letters. [2021-10-13 01:02:19,903 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:19,903 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 8 letters. Loop has 8 letters. [2021-10-13 01:02:19,904 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:19,904 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 158 transitions. [2021-10-13 01:02:19,914 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-10-13 01:02:19,918 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 90 states and 129 transitions. [2021-10-13 01:02:19,920 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-10-13 01:02:19,920 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-13 01:02:19,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 129 transitions. [2021-10-13 01:02:19,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:02:19,921 INFO L681 BuchiCegarLoop]: Abstraction has 90 states and 129 transitions. [2021-10-13 01:02:19,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 129 transitions. [2021-10-13 01:02:19,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 75. [2021-10-13 01:02:19,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 75 states have (on average 1.48) internal successors, (111), 74 states have internal predecessors, (111), 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) [2021-10-13 01:02:19,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 111 transitions. [2021-10-13 01:02:19,939 INFO L704 BuchiCegarLoop]: Abstraction has 75 states and 111 transitions. [2021-10-13 01:02:19,939 INFO L587 BuchiCegarLoop]: Abstraction has 75 states and 111 transitions. [2021-10-13 01:02:19,939 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-13 01:02:19,939 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 75 states and 111 transitions. [2021-10-13 01:02:19,941 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-10-13 01:02:19,941 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:02:19,941 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:02:19,942 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1] [2021-10-13 01:02:19,942 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-13 01:02:19,943 INFO L791 eck$LassoCheckResult]: Stem: 653#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 654#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 659#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 660#L33 assume !(main_~x~0 < main_~y~0);main_~x~0 := main_~y~0 - 1; 686#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 685#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 683#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 680#L26 assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 679#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 678#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 674#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 675#L33 [2021-10-13 01:02:19,943 INFO L793 eck$LassoCheckResult]: Loop: 675#L33 assume main_~x~0 < main_~y~0;main_~x~0 := main_~x~0 - 1; 722#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 717#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 718#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 675#L33 [2021-10-13 01:02:19,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:19,944 INFO L82 PathProgramCache]: Analyzing trace with hash -369493663, now seen corresponding path program 2 times [2021-10-13 01:02:19,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:19,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051085782] [2021-10-13 01:02:19,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:19,945 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:19,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:19,957 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:19,992 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:19,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:19,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1696497, now seen corresponding path program 2 times [2021-10-13 01:02:19,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:19,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305792154] [2021-10-13 01:02:19,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:19,994 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:19,999 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:20,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:20,003 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:20,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:20,008 INFO L82 PathProgramCache]: Analyzing trace with hash -4707247, now seen corresponding path program 1 times [2021-10-13 01:02:20,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:20,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352628925] [2021-10-13 01:02:20,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:20,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:20,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:20,021 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:20,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:20,036 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:20,073 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:02:20,074 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:02:20,074 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:02:20,074 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:02:20,074 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:02:20,074 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:20,074 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:02:20,075 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:02:20,075 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration6_Loop [2021-10-13 01:02:20,075 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:02:20,075 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:02:20,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:20,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:20,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:20,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:20,150 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:02:20,150 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:02:20,150 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:20,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:20,152 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:20,162 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:02:20,162 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:20,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-13 01:02:20,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-10-13 01:02:20,210 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:20,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:20,212 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:20,214 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:02:20,214 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:20,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-13 01:02:20,360 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:02:20,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:20,363 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:02:20,363 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:02:20,363 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:02:20,364 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:02:20,364 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:02:20,364 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:20,364 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:02:20,364 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:02:20,364 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration6_Loop [2021-10-13 01:02:20,364 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:02:20,364 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:02:20,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:20,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:20,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:20,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:20,438 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:02:20,438 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:02:20,439 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:20,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:20,440 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:20,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-13 01:02:20,449 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 [2021-10-13 01:02:20,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:02:20,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:02:20,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:02:20,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:02:20,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:02:20,460 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:02:20,460 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:02:20,465 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:02:20,475 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-13 01:02:20,475 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 01:02:20,475 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:20,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:20,478 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:20,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-13 01:02:20,491 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:02:20,491 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:02:20,491 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:02:20,491 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-13 01:02:20,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:20,519 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:02:20,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:20,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:20,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:02:20,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:20,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:20,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:02:20,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:20,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:02:20,627 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-13 01:02:20,627 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 75 states and 111 transitions. cyclomatic complexity: 48 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2021-10-13 01:02:20,659 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 75 states and 111 transitions. cyclomatic complexity: 48. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) Result 112 states and 173 transitions. Complement of second has 7 states. [2021-10-13 01:02:20,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 01:02:20,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2021-10-13 01:02:20,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2021-10-13 01:02:20,665 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 11 letters. Loop has 4 letters. [2021-10-13 01:02:20,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:20,665 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 01:02:20,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:20,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:02:20,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:20,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:20,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:02:20,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:20,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:02:20,784 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-13 01:02:20,784 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 75 states and 111 transitions. cyclomatic complexity: 48 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2021-10-13 01:02:20,883 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 75 states and 111 transitions. cyclomatic complexity: 48. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) Result 107 states and 160 transitions. Complement of second has 7 states. [2021-10-13 01:02:20,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 01:02:20,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2021-10-13 01:02:20,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-10-13 01:02:20,885 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 4 letters. [2021-10-13 01:02:20,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:20,887 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 01:02:20,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:20,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:20,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:02:20,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:20,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:02:20,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:20,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:20,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:02:20,997 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-13 01:02:20,998 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 75 states and 111 transitions. cyclomatic complexity: 48 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2021-10-13 01:02:21,031 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 75 states and 111 transitions. cyclomatic complexity: 48. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) Result 128 states and 203 transitions. Complement of second has 8 states. [2021-10-13 01:02:21,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 01:02:21,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2021-10-13 01:02:21,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2021-10-13 01:02:21,033 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 11 letters. Loop has 4 letters. [2021-10-13 01:02:21,035 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:21,035 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 15 letters. Loop has 4 letters. [2021-10-13 01:02:21,036 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:21,036 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 11 letters. Loop has 8 letters. [2021-10-13 01:02:21,037 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:21,037 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 128 states and 203 transitions. [2021-10-13 01:02:21,044 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 22 [2021-10-13 01:02:21,052 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 128 states to 97 states and 147 transitions. [2021-10-13 01:02:21,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:21,059 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2021-10-13 01:02:21,060 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2021-10-13 01:02:21,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 97 states and 147 transitions. [2021-10-13 01:02:21,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:02:21,060 INFO L681 BuchiCegarLoop]: Abstraction has 97 states and 147 transitions. [2021-10-13 01:02:21,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states and 147 transitions. [2021-10-13 01:02:21,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 66. [2021-10-13 01:02:21,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 66 states have (on average 1.5151515151515151) internal successors, (100), 65 states have internal predecessors, (100), 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) [2021-10-13 01:02:21,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 100 transitions. [2021-10-13 01:02:21,076 INFO L704 BuchiCegarLoop]: Abstraction has 66 states and 100 transitions. [2021-10-13 01:02:21,077 INFO L587 BuchiCegarLoop]: Abstraction has 66 states and 100 transitions. [2021-10-13 01:02:21,077 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-13 01:02:21,077 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 100 transitions. [2021-10-13 01:02:21,078 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2021-10-13 01:02:21,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:02:21,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:02:21,080 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2021-10-13 01:02:21,080 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-13 01:02:21,080 INFO L791 eck$LassoCheckResult]: Stem: 1256#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 1257#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1281#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 1267#L26 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 - 1; 1268#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 1283#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1262#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 1263#L33 [2021-10-13 01:02:21,080 INFO L793 eck$LassoCheckResult]: Loop: 1263#L33 assume main_~x~0 < main_~y~0;main_~x~0 := main_~x~0 - 1; 1265#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 1254#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1255#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 1266#L26 assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 1258#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 1259#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1316#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 1263#L33 [2021-10-13 01:02:21,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:21,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1365800207, now seen corresponding path program 1 times [2021-10-13 01:02:21,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:21,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940861843] [2021-10-13 01:02:21,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:21,082 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:21,090 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:21,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:21,101 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:21,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:21,110 INFO L82 PathProgramCache]: Analyzing trace with hash -920272584, now seen corresponding path program 1 times [2021-10-13 01:02:21,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:21,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614353765] [2021-10-13 01:02:21,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:21,111 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:21,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:21,117 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:21,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:21,124 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:21,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:21,130 INFO L82 PathProgramCache]: Analyzing trace with hash -725918680, now seen corresponding path program 1 times [2021-10-13 01:02:21,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:21,131 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626927472] [2021-10-13 01:02:21,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:21,131 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:21,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:21,151 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:21,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:21,167 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:21,258 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:02:21,258 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:02:21,258 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:02:21,259 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:02:21,259 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:02:21,259 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:21,259 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:02:21,259 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:02:21,259 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration7_Loop [2021-10-13 01:02:21,260 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:02:21,260 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:02:21,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:21,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:21,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:21,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:21,355 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:02:21,355 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:02:21,356 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:21,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:21,359 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:21,362 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:02:21,362 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:21,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-13 01:02:21,383 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:02:21,383 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=-1} Honda state: {ULTIMATE.start_main_#t~nondet2=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:02:21,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:21,426 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:21,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:21,427 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:21,430 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:02:21,430 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:21,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-13 01:02:21,453 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:02:21,453 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_13=1} Honda state: {v_rep~unnamed0~0~true_13=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:02:21,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:21,495 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:21,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:21,497 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:21,499 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:02:21,500 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:21,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-13 01:02:21,515 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:02:21,515 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_13=0} Honda state: {v_rep~unnamed0~0~false_13=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:02:21,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:21,537 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:21,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:21,538 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:21,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-13 01:02:21,539 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:02:21,540 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:21,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-10-13 01:02:21,590 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:21,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:21,591 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:21,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-13 01:02:21,595 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:02:21,596 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:21,774 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:02:21,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:21,777 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:02:21,777 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:02:21,777 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:02:21,777 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:02:21,777 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:02:21,777 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:21,777 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:02:21,777 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:02:21,777 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration7_Loop [2021-10-13 01:02:21,778 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:02:21,778 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:02:21,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:21,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:21,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:21,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:21,867 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:02:21,867 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:02:21,868 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:21,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:21,885 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:21,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-13 01:02:21,887 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 [2021-10-13 01:02:21,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:02:21,896 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:02:21,896 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:02:21,896 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-13 01:02:21,896 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:02:21,897 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 01:02:21,897 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:02:21,903 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:02:21,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-10-13 01:02:21,925 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:21,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:21,925 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:21,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-13 01:02:21,928 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 [2021-10-13 01:02:21,936 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:02:21,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:02:21,936 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:02:21,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:02:21,939 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:02:21,939 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:02:21,952 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:02:21,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-10-13 01:02:21,987 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:21,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:21,988 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:21,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-13 01:02:21,997 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 [2021-10-13 01:02:22,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:02:22,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:02:22,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:02:22,006 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:02:22,009 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:02:22,010 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:02:22,029 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:02:22,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:22,049 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:22,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:22,050 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:22,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-13 01:02:22,051 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 [2021-10-13 01:02:22,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:02:22,065 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:02:22,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:02:22,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:02:22,066 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:02:22,067 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:02:22,067 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:02:22,096 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:02:22,098 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-13 01:02:22,098 INFO L444 ModelExtractionUtils]: 4 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 01:02:22,099 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:22,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:22,099 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:22,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-13 01:02:22,101 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:02:22,101 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:02:22,101 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:02:22,101 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-13 01:02:22,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-10-13 01:02:22,124 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:02:22,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:22,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:02:22,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:22,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:22,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 01:02:22,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:22,251 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:02:22,252 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-10-13 01:02:22,252 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 66 states and 100 transitions. cyclomatic complexity: 43 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 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) [2021-10-13 01:02:22,338 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 66 states and 100 transitions. cyclomatic complexity: 43. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 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) Result 246 states and 366 transitions. Complement of second has 13 states. [2021-10-13 01:02:22,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-10-13 01:02:22,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 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) [2021-10-13 01:02:22,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 30 transitions. [2021-10-13 01:02:22,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 7 letters. Loop has 8 letters. [2021-10-13 01:02:22,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:22,341 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 15 letters. Loop has 8 letters. [2021-10-13 01:02:22,341 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:22,341 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 7 letters. Loop has 16 letters. [2021-10-13 01:02:22,341 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:22,342 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 246 states and 366 transitions. [2021-10-13 01:02:22,346 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 26 [2021-10-13 01:02:22,349 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 246 states to 208 states and 314 transitions. [2021-10-13 01:02:22,349 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2021-10-13 01:02:22,349 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 47 [2021-10-13 01:02:22,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 208 states and 314 transitions. [2021-10-13 01:02:22,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:02:22,350 INFO L681 BuchiCegarLoop]: Abstraction has 208 states and 314 transitions. [2021-10-13 01:02:22,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states and 314 transitions. [2021-10-13 01:02:22,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 188. [2021-10-13 01:02:22,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 188 states have (on average 1.5265957446808511) internal successors, (287), 187 states have internal predecessors, (287), 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) [2021-10-13 01:02:22,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 287 transitions. [2021-10-13 01:02:22,365 INFO L704 BuchiCegarLoop]: Abstraction has 188 states and 287 transitions. [2021-10-13 01:02:22,365 INFO L587 BuchiCegarLoop]: Abstraction has 188 states and 287 transitions. [2021-10-13 01:02:22,365 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-13 01:02:22,365 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 188 states and 287 transitions. [2021-10-13 01:02:22,367 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 26 [2021-10-13 01:02:22,367 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:02:22,367 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:02:22,368 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1] [2021-10-13 01:02:22,368 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-13 01:02:22,368 INFO L791 eck$LassoCheckResult]: Stem: 1650#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 1651#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1699#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 1697#L33 assume !(main_~x~0 < main_~y~0);main_~x~0 := main_~y~0 - 1; 1688#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 1684#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1685#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 1698#L26 assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 1678#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 1673#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1674#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 1773#L33 [2021-10-13 01:02:22,368 INFO L793 eck$LassoCheckResult]: Loop: 1773#L33 assume main_~x~0 < main_~y~0;main_~x~0 := main_~x~0 - 1; 1739#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 1740#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1719#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 1721#L26 assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 1774#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 1702#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1703#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 1773#L33 [2021-10-13 01:02:22,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:22,369 INFO L82 PathProgramCache]: Analyzing trace with hash -369493663, now seen corresponding path program 3 times [2021-10-13 01:02:22,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:22,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879868183] [2021-10-13 01:02:22,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:22,370 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:22,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:22,377 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:22,382 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:22,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:22,383 INFO L82 PathProgramCache]: Analyzing trace with hash -920272584, now seen corresponding path program 2 times [2021-10-13 01:02:22,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:22,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573434989] [2021-10-13 01:02:22,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:22,384 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:22,388 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:22,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:22,393 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:22,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:22,394 INFO L82 PathProgramCache]: Analyzing trace with hash -742368616, now seen corresponding path program 2 times [2021-10-13 01:02:22,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:22,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058451856] [2021-10-13 01:02:22,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:22,394 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:22,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:22,412 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:22,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:22,426 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:22,500 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:02:22,501 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:02:22,501 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:02:22,501 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:02:22,501 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:02:22,501 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:22,501 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:02:22,501 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:02:22,501 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration8_Loop [2021-10-13 01:02:22,501 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:02:22,501 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:02:22,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:22,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:22,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:22,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:22,582 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:02:22,582 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:02:22,582 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:22,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:22,597 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:22,600 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:02:22,600 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:22,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-13 01:02:22,627 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:02:22,627 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:02:22,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:22,650 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:22,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:22,652 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:22,654 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:02:22,654 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:22,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-13 01:02:22,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:22,720 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:22,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:22,721 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:22,729 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:02:22,730 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:22,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-13 01:02:22,992 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:02:22,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:22,996 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:02:22,996 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:02:22,996 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:02:22,996 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:02:22,996 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:02:22,996 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:22,996 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:02:22,996 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:02:22,996 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration8_Loop [2021-10-13 01:02:22,996 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:02:22,996 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:02:22,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:23,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:23,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:23,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:23,063 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:02:23,063 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:02:23,063 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:23,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:23,064 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:23,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-13 01:02:23,066 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 [2021-10-13 01:02:23,073 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:02:23,073 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:02:23,073 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:02:23,073 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:02:23,075 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:02:23,075 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:02:23,077 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:02:23,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-10-13 01:02:23,097 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:23,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:23,098 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:23,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-13 01:02:23,099 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 [2021-10-13 01:02:23,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:02:23,107 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:02:23,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:02:23,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:02:23,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:02:23,108 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:02:23,108 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:02:23,111 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:02:23,114 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 01:02:23,115 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 01:02:23,115 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:23,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:23,116 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:23,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-13 01:02:23,117 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:02:23,117 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:02:23,117 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:02:23,117 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-13 01:02:23,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:23,139 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:02:23,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:23,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:23,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:02:23,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:23,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:23,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 01:02:23,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:23,268 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:02:23,269 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-10-13 01:02:23,269 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 188 states and 287 transitions. cyclomatic complexity: 124 Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) [2021-10-13 01:02:23,358 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 188 states and 287 transitions. cyclomatic complexity: 124. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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 330 states and 503 transitions. Complement of second has 13 states. [2021-10-13 01:02:23,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-10-13 01:02:23,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) [2021-10-13 01:02:23,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 30 transitions. [2021-10-13 01:02:23,360 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 11 letters. Loop has 8 letters. [2021-10-13 01:02:23,360 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:23,360 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 01:02:23,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:23,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:23,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:02:23,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:23,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:23,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 01:02:23,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:23,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:23,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:23,530 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:02:23,530 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2021-10-13 01:02:23,531 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 188 states and 287 transitions. cyclomatic complexity: 124 Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) [2021-10-13 01:02:23,618 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 188 states and 287 transitions. cyclomatic complexity: 124. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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 326 states and 483 transitions. Complement of second has 15 states. [2021-10-13 01:02:23,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2021-10-13 01:02:23,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) [2021-10-13 01:02:23,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 25 transitions. [2021-10-13 01:02:23,630 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 25 transitions. Stem has 11 letters. Loop has 8 letters. [2021-10-13 01:02:23,630 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:23,630 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 01:02:23,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:23,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:02:23,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:23,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:23,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 01:02:23,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:23,755 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:02:23,756 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-10-13 01:02:23,757 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 188 states and 287 transitions. cyclomatic complexity: 124 Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) [2021-10-13 01:02:23,856 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 188 states and 287 transitions. cyclomatic complexity: 124. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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 525 states and 786 transitions. Complement of second has 23 states. [2021-10-13 01:02:23,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-10-13 01:02:23,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) [2021-10-13 01:02:23,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 34 transitions. [2021-10-13 01:02:23,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 34 transitions. Stem has 11 letters. Loop has 8 letters. [2021-10-13 01:02:23,859 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:23,859 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 34 transitions. Stem has 19 letters. Loop has 8 letters. [2021-10-13 01:02:23,860 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:23,860 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 34 transitions. Stem has 11 letters. Loop has 16 letters. [2021-10-13 01:02:23,860 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:23,860 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 525 states and 786 transitions. [2021-10-13 01:02:23,869 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 86 [2021-10-13 01:02:23,874 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 525 states to 342 states and 512 transitions. [2021-10-13 01:02:23,874 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2021-10-13 01:02:23,875 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 73 [2021-10-13 01:02:23,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 342 states and 512 transitions. [2021-10-13 01:02:23,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:02:23,876 INFO L681 BuchiCegarLoop]: Abstraction has 342 states and 512 transitions. [2021-10-13 01:02:23,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states and 512 transitions. [2021-10-13 01:02:23,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 205. [2021-10-13 01:02:23,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 205 states have (on average 1.5463414634146342) internal successors, (317), 204 states have internal predecessors, (317), 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) [2021-10-13 01:02:23,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 317 transitions. [2021-10-13 01:02:23,890 INFO L704 BuchiCegarLoop]: Abstraction has 205 states and 317 transitions. [2021-10-13 01:02:23,890 INFO L587 BuchiCegarLoop]: Abstraction has 205 states and 317 transitions. [2021-10-13 01:02:23,890 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-13 01:02:23,890 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 205 states and 317 transitions. [2021-10-13 01:02:23,892 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 66 [2021-10-13 01:02:23,892 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:02:23,892 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:02:23,893 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2021-10-13 01:02:23,893 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-13 01:02:23,893 INFO L791 eck$LassoCheckResult]: Stem: 3284#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 3285#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 3327#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 3328#L26 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 - 1; 3340#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 3338#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 3291#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 3292#L33 [2021-10-13 01:02:23,894 INFO L793 eck$LassoCheckResult]: Loop: 3292#L33 assume !(main_~x~0 < main_~y~0);main_~x~0 := main_~y~0 - 1; 3423#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 3424#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 3443#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 3418#L26 assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 3442#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 3441#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 3417#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 3292#L33 [2021-10-13 01:02:23,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:23,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1365800207, now seen corresponding path program 2 times [2021-10-13 01:02:23,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:23,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043235831] [2021-10-13 01:02:23,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:23,895 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:23,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:23,900 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:23,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:23,904 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:23,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:23,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1729619210, now seen corresponding path program 1 times [2021-10-13 01:02:23,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:23,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982919988] [2021-10-13 01:02:23,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:23,905 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:23,910 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:23,914 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:23,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:23,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1535265306, now seen corresponding path program 1 times [2021-10-13 01:02:23,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:23,915 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104324867] [2021-10-13 01:02:23,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:23,916 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:23,921 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:23,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:23,927 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:24,004 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:02:24,004 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:02:24,005 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:02:24,005 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:02:24,005 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:02:24,005 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:24,005 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:02:24,005 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:02:24,005 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration9_Loop [2021-10-13 01:02:24,006 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:02:24,006 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:02:24,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:24,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:24,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:24,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:24,089 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:02:24,089 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:02:24,089 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:24,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:24,093 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:24,098 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:02:24,098 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:24,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-13 01:02:24,129 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:02:24,129 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_17=1} Honda state: {v_rep~unnamed0~0~true_17=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:02:24,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:24,167 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:24,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:24,169 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:24,172 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:02:24,172 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:24,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-13 01:02:24,193 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:02:24,193 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=-1} Honda state: {ULTIMATE.start_main_#t~nondet2=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:02:24,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:24,230 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:24,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:24,231 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:24,233 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:02:24,233 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:24,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-13 01:02:24,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-10-13 01:02:24,267 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:24,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:24,268 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:24,274 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:02:24,274 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:24,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-13 01:02:24,373 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:02:24,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:24,376 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:02:24,376 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:02:24,376 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:02:24,376 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:02:24,376 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:02:24,376 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:24,376 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:02:24,376 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:02:24,376 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration9_Loop [2021-10-13 01:02:24,376 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:02:24,377 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:02:24,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:24,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:24,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:24,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:24,455 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:02:24,456 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:02:24,456 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:24,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:24,457 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:24,466 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 [2021-10-13 01:02:24,477 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:02:24,477 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:02:24,478 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:02:24,478 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:02:24,480 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:02:24,480 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:02:24,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-13 01:02:24,493 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:02:24,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:24,532 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:24,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:24,533 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:24,535 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 [2021-10-13 01:02:24,545 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:02:24,545 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:02:24,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:02:24,545 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-13 01:02:24,545 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:02:24,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-13 01:02:24,546 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 01:02:24,546 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:02:24,547 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:02:24,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2021-10-13 01:02:24,567 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:24,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:24,568 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:24,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-13 01:02:24,569 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 [2021-10-13 01:02:24,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:02:24,577 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:02:24,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:02:24,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:02:24,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:02:24,578 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:02:24,578 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:02:24,581 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:02:24,583 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-13 01:02:24,584 INFO L444 ModelExtractionUtils]: 4 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 01:02:24,584 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:24,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:24,585 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:24,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-13 01:02:24,586 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:02:24,586 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:02:24,586 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:02:24,586 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-13 01:02:24,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:24,611 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:02:24,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:24,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:02:24,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:24,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:24,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 01:02:24,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:24,725 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:02:24,725 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-10-13 01:02:24,726 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 205 states and 317 transitions. cyclomatic complexity: 133 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 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) [2021-10-13 01:02:24,806 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 205 states and 317 transitions. cyclomatic complexity: 133. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 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) Result 490 states and 759 transitions. Complement of second has 12 states. [2021-10-13 01:02:24,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-10-13 01:02:24,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 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) [2021-10-13 01:02:24,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 30 transitions. [2021-10-13 01:02:24,807 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 7 letters. Loop has 8 letters. [2021-10-13 01:02:24,808 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:24,808 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 15 letters. Loop has 8 letters. [2021-10-13 01:02:24,808 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:24,808 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 7 letters. Loop has 16 letters. [2021-10-13 01:02:24,808 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:24,808 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 490 states and 759 transitions. [2021-10-13 01:02:24,815 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-10-13 01:02:24,819 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 490 states to 285 states and 426 transitions. [2021-10-13 01:02:24,819 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2021-10-13 01:02:24,820 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-10-13 01:02:24,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 285 states and 426 transitions. [2021-10-13 01:02:24,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:02:24,820 INFO L681 BuchiCegarLoop]: Abstraction has 285 states and 426 transitions. [2021-10-13 01:02:24,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states and 426 transitions. [2021-10-13 01:02:24,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 193. [2021-10-13 01:02:24,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 193 states have (on average 1.528497409326425) internal successors, (295), 192 states have internal predecessors, (295), 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) [2021-10-13 01:02:24,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 295 transitions. [2021-10-13 01:02:24,830 INFO L704 BuchiCegarLoop]: Abstraction has 193 states and 295 transitions. [2021-10-13 01:02:24,830 INFO L587 BuchiCegarLoop]: Abstraction has 193 states and 295 transitions. [2021-10-13 01:02:24,830 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-13 01:02:24,830 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 193 states and 295 transitions. [2021-10-13 01:02:24,832 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-13 01:02:24,832 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:02:24,832 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:02:24,833 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 2, 2, 1, 1, 1, 1] [2021-10-13 01:02:24,833 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-13 01:02:24,834 INFO L791 eck$LassoCheckResult]: Stem: 4060#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 4061#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 4084#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 4088#L26 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 - 1; 4085#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 4086#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 4081#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 4082#L33 assume main_~x~0 < main_~y~0;main_~x~0 := main_~x~0 - 1; 4134#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 4133#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 4128#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 4130#L26 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 - 1; 4141#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 4140#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 4137#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 4067#L26 [2021-10-13 01:02:24,834 INFO L793 eck$LassoCheckResult]: Loop: 4067#L26 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 - 1; 4062#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 4063#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 4066#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 4067#L26 [2021-10-13 01:02:24,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:24,834 INFO L82 PathProgramCache]: Analyzing trace with hash -725859107, now seen corresponding path program 1 times [2021-10-13 01:02:24,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:24,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276973810] [2021-10-13 01:02:24,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:24,835 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:24,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:24,843 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:24,850 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:24,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:24,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1479302, now seen corresponding path program 3 times [2021-10-13 01:02:24,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:24,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29367994] [2021-10-13 01:02:24,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:24,851 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:24,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:24,856 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:24,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:24,858 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:24,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:24,859 INFO L82 PathProgramCache]: Analyzing trace with hash -517142174, now seen corresponding path program 2 times [2021-10-13 01:02:24,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:02:24,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722552840] [2021-10-13 01:02:24,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:02:24,860 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:02:24,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:24,867 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:02:24,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:02:24,874 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:02:24,907 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:02:24,907 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:02:24,907 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:02:24,907 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:02:24,907 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:02:24,907 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:24,907 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:02:24,908 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:02:24,908 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration10_Loop [2021-10-13 01:02:24,908 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:02:24,908 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:02:24,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:24,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:24,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:24,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:24,973 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:02:24,973 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:02:24,973 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:24,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:24,974 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:24,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-13 01:02:24,976 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:02:24,981 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:25,002 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:02:25,002 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_19=0} Honda state: {v_rep~unnamed0~0~false_19=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:02:25,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2021-10-13 01:02:25,037 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:25,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:25,038 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:25,040 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:02:25,041 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:25,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-13 01:02:25,055 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:02:25,056 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_19=1} Honda state: {v_rep~unnamed0~0~true_19=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:02:25,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2021-10-13 01:02:25,078 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:25,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:25,079 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:25,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-13 01:02:25,080 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:02:25,080 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:25,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2021-10-13 01:02:25,110 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:25,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:25,111 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:25,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-13 01:02:25,112 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:02:25,112 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:02:25,217 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:02:25,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:25,220 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:02:25,220 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:02:25,220 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:02:25,220 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:02:25,220 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:02:25,221 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:25,221 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:02:25,221 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:02:25,221 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration10_Loop [2021-10-13 01:02:25,221 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:02:25,221 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:02:25,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:25,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:25,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:25,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:02:25,280 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:02:25,281 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:02:25,281 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:25,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:25,282 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:25,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-13 01:02:25,283 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 [2021-10-13 01:02:25,291 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:02:25,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:02:25,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:02:25,291 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:02:25,292 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:02:25,292 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:02:25,295 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:02:25,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2021-10-13 01:02:25,317 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:25,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:25,318 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:25,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-13 01:02:25,320 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 [2021-10-13 01:02:25,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:02:25,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:02:25,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:02:25,329 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:02:25,353 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:02:25,353 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:02:25,369 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:02:25,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:25,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2021-10-13 01:02:25,393 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:25,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:25,393 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:25,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-13 01:02:25,395 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 [2021-10-13 01:02:25,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:02:25,402 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:02:25,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:02:25,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:02:25,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:02:25,404 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:02:25,404 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:02:25,406 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:02:25,413 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-13 01:02:25,413 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 01:02:25,413 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:02:25,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:02:25,415 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:02:25,417 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:02:25,417 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:02:25,417 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:02:25,417 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-13 01:02:25,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-13 01:02:25,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:25,449 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:02:25,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:25,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:02:25,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:25,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:25,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:02:25,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:25,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:02:25,553 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-13 01:02:25,553 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 193 states and 295 transitions. cyclomatic complexity: 126 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2021-10-13 01:02:25,580 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 193 states and 295 transitions. cyclomatic complexity: 126. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) Result 302 states and 452 transitions. Complement of second has 7 states. [2021-10-13 01:02:25,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 01:02:25,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2021-10-13 01:02:25,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2021-10-13 01:02:25,582 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 15 letters. Loop has 4 letters. [2021-10-13 01:02:25,582 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:25,582 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 01:02:25,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:25,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:25,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:02:25,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:25,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:25,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:02:25,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:25,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:02:25,690 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-13 01:02:25,690 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 193 states and 295 transitions. cyclomatic complexity: 126 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2021-10-13 01:02:25,718 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 193 states and 295 transitions. cyclomatic complexity: 126. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) Result 313 states and 443 transitions. Complement of second has 7 states. [2021-10-13 01:02:25,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 01:02:25,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2021-10-13 01:02:25,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-10-13 01:02:25,719 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 15 letters. Loop has 4 letters. [2021-10-13 01:02:25,719 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:25,719 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 01:02:25,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:02:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:25,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:02:25,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:02:25,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:02:25,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:02:25,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:02:25,822 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-13 01:02:25,823 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 193 states and 295 transitions. cyclomatic complexity: 126 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2021-10-13 01:02:25,850 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 193 states and 295 transitions. cyclomatic complexity: 126. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) Result 423 states and 703 transitions. Complement of second has 8 states. [2021-10-13 01:02:25,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 01:02:25,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2021-10-13 01:02:25,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2021-10-13 01:02:25,851 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 15 letters. Loop has 4 letters. [2021-10-13 01:02:25,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:25,851 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 19 letters. Loop has 4 letters. [2021-10-13 01:02:25,852 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:25,852 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 15 letters. Loop has 8 letters. [2021-10-13 01:02:25,852 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:02:25,853 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 423 states and 703 transitions. [2021-10-13 01:02:25,858 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 01:02:25,858 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 423 states to 0 states and 0 transitions. [2021-10-13 01:02:25,859 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 01:02:25,859 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 01:02:25,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 01:02:25,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:02:25,860 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:02:25,860 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:02:25,860 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:02:25,860 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-13 01:02:25,860 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-13 01:02:25,860 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 01:02:25,861 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 01:02:25,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 01:02:25 BoogieIcfgContainer [2021-10-13 01:02:25,871 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 01:02:25,871 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:02:25,872 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:02:25,872 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:02:25,873 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:02:14" (3/4) ... [2021-10-13 01:02:25,879 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 01:02:25,879 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:02:25,881 INFO L168 Benchmark]: Toolchain (without parser) took 12119.72 ms. Allocated memory was 136.3 MB in the beginning and 169.9 MB in the end (delta: 33.6 MB). Free memory was 99.5 MB in the beginning and 104.3 MB in the end (delta: -4.8 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.1 GB. [2021-10-13 01:02:25,881 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 136.3 MB. Free memory is still 115.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:02:25,883 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.59 ms. Allocated memory is still 136.3 MB. Free memory was 99.2 MB in the beginning and 115.4 MB in the end (delta: -16.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:02:25,883 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.95 ms. Allocated memory is still 136.3 MB. Free memory was 115.4 MB in the beginning and 114.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:02:25,883 INFO L168 Benchmark]: Boogie Preprocessor took 19.30 ms. Allocated memory is still 136.3 MB. Free memory was 114.0 MB in the beginning and 112.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:02:25,884 INFO L168 Benchmark]: RCFGBuilder took 251.62 ms. Allocated memory is still 136.3 MB. Free memory was 112.7 MB in the beginning and 105.1 MB in the end (delta: 7.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 01:02:25,884 INFO L168 Benchmark]: BuchiAutomizer took 11531.37 ms. Allocated memory was 136.3 MB in the beginning and 169.9 MB in the end (delta: 33.6 MB). Free memory was 104.9 MB in the beginning and 105.3 MB in the end (delta: -386.3 kB). Peak memory consumption was 36.3 MB. Max. memory is 16.1 GB. [2021-10-13 01:02:25,885 INFO L168 Benchmark]: Witness Printer took 7.79 ms. Allocated memory is still 169.9 MB. Free memory was 105.3 MB in the beginning and 104.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:02:25,888 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 136.3 MB. Free memory is still 115.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 260.59 ms. Allocated memory is still 136.3 MB. Free memory was 99.2 MB in the beginning and 115.4 MB in the end (delta: -16.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.95 ms. Allocated memory is still 136.3 MB. Free memory was 115.4 MB in the beginning and 114.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.30 ms. Allocated memory is still 136.3 MB. Free memory was 114.0 MB in the beginning and 112.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 251.62 ms. Allocated memory is still 136.3 MB. Free memory was 112.7 MB in the beginning and 105.1 MB in the end (delta: 7.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 11531.37 ms. Allocated memory was 136.3 MB in the beginning and 169.9 MB in the end (delta: 33.6 MB). Free memory was 104.9 MB in the beginning and 105.3 MB in the end (delta: -386.3 kB). Peak memory consumption was 36.3 MB. Max. memory is 16.1 GB. * Witness Printer took 7.79 ms. Allocated memory is still 169.9 MB. Free memory was 105.3 MB in the beginning and 104.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (0 trivial, 7 deterministic, 3 nondeterministic). One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function y 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 y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 7 locations. One deterministic module has affine ranking function y and consists of 7 locations. One nondeterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 7 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 11.4s and 11 iterations. TraceHistogramMax:4. Analysis of lassos took 8.2s. Construction of modules took 0.3s. Büchi inclusion checks took 2.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 105.3ms AutomataMinimizationTime, 9 MinimizatonAttempts, 316 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 205 states and ocurred in iteration 8. Nontrivial modules had stage [7, 0, 3, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/6 HoareTripleCheckerStatistics: 192 SDtfs, 248 SDslu, 117 SDs, 0 SdLazy, 319 SolverSat, 103 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 312.0ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT10 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax151 hnf99 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq151 hnf93 smp100 dnf100 smp100 tf107 neg100 sie117 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 43ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 15 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 10 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-13 01:02:25,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2021-10-13 01:02:26,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee957ac6-0824-4960-b728-ab6bd4a1e946/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...