./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/c.01-no-inv.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/c.01-no-inv.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3 --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 90c8922c67b3eb8c55716b63a408098d1b23a21e ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 20:11:27,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 20:11:27,663 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 20:11:27,708 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 20:11:27,709 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 20:11:27,710 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 20:11:27,712 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 20:11:27,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 20:11:27,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 20:11:27,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 20:11:27,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 20:11:27,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 20:11:27,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 20:11:27,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 20:11:27,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 20:11:27,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 20:11:27,741 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 20:11:27,742 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 20:11:27,751 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 20:11:27,753 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 20:11:27,755 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 20:11:27,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 20:11:27,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 20:11:27,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 20:11:27,762 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 20:11:27,762 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 20:11:27,762 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 20:11:27,763 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 20:11:27,764 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 20:11:27,765 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 20:11:27,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 20:11:27,767 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 20:11:27,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 20:11:27,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 20:11:27,769 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 20:11:27,770 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 20:11:27,770 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 20:11:27,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 20:11:27,771 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 20:11:27,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 20:11:27,773 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 20:11:27,773 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-15 20:11:27,811 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 20:11:27,812 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 20:11:27,812 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 20:11:27,812 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 20:11:27,813 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 20:11:27,813 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 20:11:27,813 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 20:11:27,814 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-15 20:11:27,814 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-15 20:11:27,814 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-15 20:11:27,814 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-15 20:11:27,814 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-15 20:11:27,815 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-15 20:11:27,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 20:11:27,815 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 20:11:27,815 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 20:11:27,815 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 20:11:27,815 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-15 20:11:27,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-15 20:11:27,816 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-15 20:11:27,816 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 20:11:27,816 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-15 20:11:27,816 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 20:11:27,816 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-15 20:11:27,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 20:11:27,817 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 20:11:27,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 20:11:27,817 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 20:11:27,818 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 20:11:27,819 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-15 20:11:27,819 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_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90c8922c67b3eb8c55716b63a408098d1b23a21e [2021-10-15 20:11:28,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 20:11:28,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 20:11:28,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 20:11:28,118 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 20:11:28,119 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 20:11:28,120 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/termination-restricted-15/c.01-no-inv.c [2021-10-15 20:11:28,225 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/data/581300459/38e7842375f94a8e8f91639464af366e/FLAG395885bc6 [2021-10-15 20:11:28,684 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 20:11:28,685 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/sv-benchmarks/c/termination-restricted-15/c.01-no-inv.c [2021-10-15 20:11:28,694 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/data/581300459/38e7842375f94a8e8f91639464af366e/FLAG395885bc6 [2021-10-15 20:11:29,082 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/data/581300459/38e7842375f94a8e8f91639464af366e [2021-10-15 20:11:29,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 20:11:29,087 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 20:11:29,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 20:11:29,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 20:11:29,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 20:11:29,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:11:29" (1/1) ... [2021-10-15 20:11:29,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41a8113c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:29, skipping insertion in model container [2021-10-15 20:11:29,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:11:29" (1/1) ... [2021-10-15 20:11:29,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 20:11:29,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 20:11:29,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:11:29,302 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 20:11:29,328 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:11:29,340 INFO L208 MainTranslator]: Completed translation [2021-10-15 20:11:29,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:29 WrapperNode [2021-10-15 20:11:29,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 20:11:29,341 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 20:11:29,341 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 20:11:29,341 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 20:11:29,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:29" (1/1) ... [2021-10-15 20:11:29,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:29" (1/1) ... [2021-10-15 20:11:29,385 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 20:11:29,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 20:11:29,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 20:11:29,387 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 20:11:29,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:29" (1/1) ... [2021-10-15 20:11:29,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:29" (1/1) ... [2021-10-15 20:11:29,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:29" (1/1) ... [2021-10-15 20:11:29,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:29" (1/1) ... [2021-10-15 20:11:29,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:29" (1/1) ... [2021-10-15 20:11:29,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:29" (1/1) ... [2021-10-15 20:11:29,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:29" (1/1) ... [2021-10-15 20:11:29,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 20:11:29,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 20:11:29,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 20:11:29,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 20:11:29,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:29" (1/1) ... [2021-10-15 20:11:29,421 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:29,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:29,456 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:29,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-15 20:11:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 20:11:29,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 20:11:29,669 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 20:11:29,669 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-15 20:11:29,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:11:29 BoogieIcfgContainer [2021-10-15 20:11:29,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 20:11:29,674 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-15 20:11:29,674 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-15 20:11:29,678 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-15 20:11:29,679 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:11:29,679 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 08:11:29" (1/3) ... [2021-10-15 20:11:29,681 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1cd005d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 08:11:29, skipping insertion in model container [2021-10-15 20:11:29,681 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:11:29,681 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:29" (2/3) ... [2021-10-15 20:11:29,682 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1cd005d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 08:11:29, skipping insertion in model container [2021-10-15 20:11:29,682 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:11:29,682 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:11:29" (3/3) ... [2021-10-15 20:11:29,684 INFO L389 chiAutomizerObserver]: Analyzing ICFG c.01-no-inv.c [2021-10-15 20:11:29,733 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-15 20:11:29,733 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-15 20:11:29,733 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-15 20:11:29,733 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-15 20:11:29,733 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-15 20:11:29,733 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-15 20:11:29,734 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-15 20:11:29,734 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-15 20:11:29,745 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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) [2021-10-15 20:11:29,761 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-15 20:11:29,761 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:11:29,761 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:11:29,767 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-15 20:11:29,767 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-15 20:11:29,767 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-15 20:11:29,768 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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) [2021-10-15 20:11:29,768 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-15 20:11:29,769 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:11:29,769 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:11:29,769 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-15 20:11:29,769 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-15 20:11:29,774 INFO L791 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~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;main_~c~0 := 0; 5#L10-2true [2021-10-15 20:11:29,775 INFO L793 eck$LassoCheckResult]: Loop: 5#L10-2true assume !!(main_~x~0 >= 0);main_~y~0 := 1; 3#L12-2true assume !(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824); 8#L12-3true main_~x~0 := main_~x~0 - 1; 5#L10-2true [2021-10-15 20:11:29,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:11:29,781 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-15 20:11:29,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:11:29,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873448864] [2021-10-15 20:11:29,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:11:29,790 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:11:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:11:29,861 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:11:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:11:29,882 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:11:29,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:11:29,885 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2021-10-15 20:11:29,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:11:29,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059262155] [2021-10-15 20:11:29,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:11:29,887 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:11:29,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:11:29,900 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:11:29,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:11:29,906 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:11:29,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:11:29,908 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2021-10-15 20:11:29,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:11:29,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675212973] [2021-10-15 20:11:29,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:11:29,909 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:11:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:11:29,918 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:11:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:11:29,926 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:11:30,028 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:11:30,029 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:11:30,029 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:11:30,029 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:11:30,029 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-15 20:11:30,029 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:30,030 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:11:30,030 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:11:30,030 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration1_Loop [2021-10-15 20:11:30,030 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:11:30,030 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:11:30,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:30,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:30,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:30,194 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:11:30,195 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-15 20:11:30,197 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:30,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:30,199 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:30,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-15 20:11:30,207 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:11:30,207 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:11:30,231 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 20:11:30,231 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: [] [2021-10-15 20:11:30,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-15 20:11:30,260 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:30,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:30,265 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:30,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-15 20:11:30,267 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:11:30,267 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:11:30,294 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 20:11:30,295 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: [] [2021-10-15 20:11:30,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-15 20:11:30,322 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:30,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:30,323 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:30,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-15 20:11:30,325 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:11:30,325 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:11:30,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-15 20:11:30,376 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:30,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:30,377 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:30,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-15 20:11:30,389 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-15 20:11:30,389 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:11:30,432 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-15 20:11:30,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-15 20:11:30,448 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:11:30,448 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:11:30,448 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:11:30,449 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:11:30,449 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 20:11:30,449 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:30,449 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:11:30,449 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:11:30,449 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration1_Loop [2021-10-15 20:11:30,449 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:11:30,449 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:11:30,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:30,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:30,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:30,529 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:11:30,534 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 20:11:30,535 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:30,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:30,536 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:30,542 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 [2021-10-15 20:11:30,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:11:30,552 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:11:30,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:11:30,552 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:11:30,552 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:11:30,556 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:11:30,556 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:11:30,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-15 20:11:30,574 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 20:11:30,578 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-15 20:11:30,578 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-15 20:11:30,580 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:30,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:30,581 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:30,583 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 20:11:30,583 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-15 20:11:30,584 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 20:11:30,584 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2021-10-15 20:11:30,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-15 20:11:30,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-15 20:11:30,620 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-15 20:11:30,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:11:30,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:11:30,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-15 20:11:30,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:11:30,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:11:30,665 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-15 20:11:30,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:11:30,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:11:30,746 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 [2021-10-15 20:11:30,748 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-10-15 20:11:30,793 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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 23 states and 35 transitions. Complement of second has 7 states. [2021-10-15 20:11:30,794 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 [2021-10-15 20:11:30,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-10-15 20:11:30,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2021-10-15 20:11:30,798 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2021-10-15 20:11:30,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:11:30,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2021-10-15 20:11:30,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:11:30,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2021-10-15 20:11:30,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:11:30,800 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2021-10-15 20:11:30,803 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-15 20:11:30,806 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2021-10-15 20:11:30,807 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-15 20:11:30,808 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-10-15 20:11:30,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2021-10-15 20:11:30,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-15 20:11:30,809 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-15 20:11:30,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2021-10-15 20:11:30,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2021-10-15 20:11:30,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:11:30,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2021-10-15 20:11:30,833 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2021-10-15 20:11:30,833 INFO L587 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2021-10-15 20:11:30,833 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-15 20:11:30,834 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2021-10-15 20:11:30,834 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-15 20:11:30,834 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:11:30,834 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:11:30,835 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-15 20:11:30,835 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-15 20:11:30,835 INFO L791 eck$LassoCheckResult]: Stem: 75#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~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;main_~c~0 := 0; 73#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 70#L12-2 [2021-10-15 20:11:30,835 INFO L793 eck$LassoCheckResult]: Loop: 70#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 70#L12-2 [2021-10-15 20:11:30,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:11:30,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-15 20:11:30,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:11:30,836 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217621572] [2021-10-15 20:11:30,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:11:30,837 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:11:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:11:30,843 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:11:30,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:11:30,848 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:11:30,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:11:30,849 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2021-10-15 20:11:30,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:11:30,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334270830] [2021-10-15 20:11:30,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:11:30,850 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:11:30,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:11:30,870 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:11:30,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:11:30,912 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:11:30,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:11:30,913 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2021-10-15 20:11:30,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:11:30,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711874441] [2021-10-15 20:11:30,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:11:30,913 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:11:30,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:11:30,922 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:11:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:11:30,929 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:11:30,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-10-15 20:11:31,042 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:11:31,042 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:11:31,042 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:11:31,042 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:11:31,042 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-15 20:11:31,042 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:31,043 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:11:31,043 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:11:31,043 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration2_Lasso [2021-10-15 20:11:31,043 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:11:31,043 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:11:31,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:31,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:31,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:31,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:31,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:31,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:31,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:31,123 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:11:31,124 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-15 20:11:31,124 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:31,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:31,125 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:31,135 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:11:31,135 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:11:31,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-15 20:11:31,167 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 20:11:31,167 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: [] [2021-10-15 20:11:31,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-15 20:11:31,207 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:31,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:31,208 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:31,214 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:11:31,214 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:11:31,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-15 20:11:31,239 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 20:11:31,239 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-15 20:11:31,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-15 20:11:31,267 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:31,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:31,268 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:31,270 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:11:31,271 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:11:31,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-15 20:11:31,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-10-15 20:11:31,328 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:31,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:31,333 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:31,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-15 20:11:31,335 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-15 20:11:31,335 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:11:31,376 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-15 20:11:31,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-15 20:11:31,379 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:11:31,379 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:11:31,379 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:11:31,379 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:11:31,379 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 20:11:31,380 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:31,380 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:11:31,380 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:11:31,380 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration2_Lasso [2021-10-15 20:11:31,380 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:11:31,380 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:11:31,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:31,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:31,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:31,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:31,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:31,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:31,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:31,489 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:11:31,489 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 20:11:31,490 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:31,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:31,498 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:31,504 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 [2021-10-15 20:11:31,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-15 20:11:31,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:11:31,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:11:31,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:11:31,515 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:11:31,519 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:11:31,520 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:11:31,533 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:11:31,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-15 20:11:31,570 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:31,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:31,571 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:31,577 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 [2021-10-15 20:11:31,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:11:31,587 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:11:31,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:11:31,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:11:31,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:11:31,588 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:11:31,588 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:11:31,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-15 20:11:31,602 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:11:31,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-15 20:11:31,624 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:31,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:31,626 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:31,639 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 [2021-10-15 20:11:31,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-15 20:11:31,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:11:31,649 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:11:31,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:11:31,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:11:31,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:11:31,650 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:11:31,650 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:11:31,666 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:11:31,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-15 20:11:31,687 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:31,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:31,688 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:31,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-15 20:11:31,692 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 [2021-10-15 20:11:31,702 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:11:31,702 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:11:31,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:11:31,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:11:31,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:11:31,703 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:11:31,703 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:11:31,708 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:11:31,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-10-15 20:11:31,730 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:31,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:31,732 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:31,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-15 20:11:31,734 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 [2021-10-15 20:11:31,742 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:11:31,742 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:11:31,742 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:11:31,742 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:11:31,750 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:11:31,751 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:11:31,777 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 20:11:31,792 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-10-15 20:11:31,793 INFO L444 ModelExtractionUtils]: 1 out of 10 variables were initially zero. Simplification set additionally 4 variables to zero. [2021-10-15 20:11:31,793 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:31,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:31,799 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:31,835 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 20:11:31,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-15 20:11:31,860 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-15 20:11:31,861 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 20:11:31,861 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -2147483648*ULTIMATE.start_main_~y~0 + 2147483647*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2021-10-15 20:11:31,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-15 20:11:31,899 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-10-15 20:11:31,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:11:31,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:11:31,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-15 20:11:31,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:11:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:11:31,955 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-15 20:11:31,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:11:31,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:11:31,960 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-15 20:11:31,960 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:11:32,008 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 18 transitions. Complement of second has 5 states. [2021-10-15 20:11:32,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-15 20:11:32,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:11:32,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-10-15 20:11:32,010 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2021-10-15 20:11:32,010 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:11:32,010 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2021-10-15 20:11:32,010 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:11:32,010 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-15 20:11:32,010 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:11:32,011 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2021-10-15 20:11:32,012 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-15 20:11:32,012 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 9 states and 13 transitions. [2021-10-15 20:11:32,012 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-15 20:11:32,013 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2021-10-15 20:11:32,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2021-10-15 20:11:32,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-15 20:11:32,013 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2021-10-15 20:11:32,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2021-10-15 20:11:32,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 6. [2021-10-15 20:11:32,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:11:32,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2021-10-15 20:11:32,015 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-10-15 20:11:32,015 INFO L587 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-10-15 20:11:32,015 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-15 20:11:32,015 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2021-10-15 20:11:32,015 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-15 20:11:32,015 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:11:32,015 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:11:32,016 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2021-10-15 20:11:32,016 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-15 20:11:32,016 INFO L791 eck$LassoCheckResult]: Stem: 132#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~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;main_~c~0 := 0; 130#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 128#L12-2 assume !(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824); 129#L12-3 main_~x~0 := main_~x~0 - 1; 131#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 127#L12-2 [2021-10-15 20:11:32,016 INFO L793 eck$LassoCheckResult]: Loop: 127#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 127#L12-2 [2021-10-15 20:11:32,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:11:32,017 INFO L82 PathProgramCache]: Analyzing trace with hash 29867642, now seen corresponding path program 2 times [2021-10-15 20:11:32,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:11:32,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665664229] [2021-10-15 20:11:32,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:11:32,018 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:11:32,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:11:32,025 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:11:32,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:11:32,031 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:11:32,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:11:32,032 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2021-10-15 20:11:32,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:11:32,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187010241] [2021-10-15 20:11:32,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:11:32,033 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:11:32,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:11:32,037 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:11:32,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:11:32,041 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:11:32,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:11:32,042 INFO L82 PathProgramCache]: Analyzing trace with hash 925896921, now seen corresponding path program 1 times [2021-10-15 20:11:32,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:11:32,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470132340] [2021-10-15 20:11:32,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:11:32,042 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:11:32,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:11:32,154 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:11:32,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:11:32,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470132340] [2021-10-15 20:11:32,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470132340] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:11:32,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595892716] [2021-10-15 20:11:32,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:11:32,157 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 20:11:32,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:32,158 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 20:11:32,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-15 20:11:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:11:32,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-15 20:11:32,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:11:32,262 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:11:32,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595892716] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:11:32,264 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 20:11:32,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-15 20:11:32,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355529497] [2021-10-15 20:11:32,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:11:32,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-15 20:11:32,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-15 20:11:32,296 INFO L87 Difference]: Start difference. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:11:32,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:11:32,364 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2021-10-15 20:11:32,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-15 20:11:32,365 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 18 transitions. [2021-10-15 20:11:32,368 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-15 20:11:32,370 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 8 states and 10 transitions. [2021-10-15 20:11:32,370 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-15 20:11:32,370 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-10-15 20:11:32,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2021-10-15 20:11:32,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-15 20:11:32,370 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-10-15 20:11:32,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2021-10-15 20:11:32,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2021-10-15 20:11:32,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:11:32,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-10-15 20:11:32,374 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-15 20:11:32,374 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-15 20:11:32,374 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-15 20:11:32,374 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2021-10-15 20:11:32,375 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-15 20:11:32,375 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:11:32,375 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:11:32,376 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2021-10-15 20:11:32,376 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-15 20:11:32,377 INFO L791 eck$LassoCheckResult]: Stem: 185#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~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;main_~c~0 := 0; 183#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 181#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 182#L12-2 assume !(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824); 186#L12-3 main_~x~0 := main_~x~0 - 1; 184#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 180#L12-2 [2021-10-15 20:11:32,377 INFO L793 eck$LassoCheckResult]: Loop: 180#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 180#L12-2 [2021-10-15 20:11:32,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:11:32,378 INFO L82 PathProgramCache]: Analyzing trace with hash 925951131, now seen corresponding path program 2 times [2021-10-15 20:11:32,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:11:32,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580619083] [2021-10-15 20:11:32,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:11:32,379 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:11:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:11:32,400 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:11:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:11:32,423 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:11:32,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:11:32,423 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 3 times [2021-10-15 20:11:32,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:11:32,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135418646] [2021-10-15 20:11:32,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:11:32,424 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:11:32,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:11:32,427 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:11:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:11:32,431 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:11:32,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:11:32,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1360285992, now seen corresponding path program 3 times [2021-10-15 20:11:32,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:11:32,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410267301] [2021-10-15 20:11:32,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:11:32,432 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:11:32,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:11:32,476 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:11:32,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:11:32,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410267301] [2021-10-15 20:11:32,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410267301] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:11:32,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975341861] [2021-10-15 20:11:32,477 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-15 20:11:32,477 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 20:11:32,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:32,479 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 20:11:32,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-15 20:11:32,514 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-15 20:11:32,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 20:11:32,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-15 20:11:32,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:11:32,589 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:11:32,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975341861] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:11:32,592 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 20:11:32,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-10-15 20:11:32,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036125945] [2021-10-15 20:11:32,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:11:32,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-15 20:11:32,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-15 20:11:32,630 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:11:32,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-15 20:11:32,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:11:32,695 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2021-10-15 20:11:32,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-15 20:11:32,696 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 16 transitions. [2021-10-15 20:11:32,697 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-15 20:11:32,699 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 12 transitions. [2021-10-15 20:11:32,699 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-15 20:11:32,700 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-15 20:11:32,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2021-10-15 20:11:32,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-15 20:11:32,700 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-10-15 20:11:32,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2021-10-15 20:11:32,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 8. [2021-10-15 20:11:32,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 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) [2021-10-15 20:11:32,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2021-10-15 20:11:32,703 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-10-15 20:11:32,703 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-10-15 20:11:32,703 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-15 20:11:32,703 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2021-10-15 20:11:32,704 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-15 20:11:32,704 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:11:32,704 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:11:32,705 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1] [2021-10-15 20:11:32,705 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-15 20:11:32,705 INFO L791 eck$LassoCheckResult]: Stem: 243#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~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;main_~c~0 := 0; 241#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 239#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 240#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 245#L12-2 assume !(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824); 244#L12-3 main_~x~0 := main_~x~0 - 1; 242#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 238#L12-2 [2021-10-15 20:11:32,705 INFO L793 eck$LassoCheckResult]: Loop: 238#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 238#L12-2 [2021-10-15 20:11:32,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:11:32,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1360231782, now seen corresponding path program 4 times [2021-10-15 20:11:32,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:11:32,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244558907] [2021-10-15 20:11:32,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:11:32,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:11:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:11:32,726 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:11:32,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:11:32,748 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:11:32,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:11:32,750 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 4 times [2021-10-15 20:11:32,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:11:32,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280508712] [2021-10-15 20:11:32,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:11:32,751 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:11:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:11:32,762 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:11:32,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:11:32,765 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:11:32,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:11:32,765 INFO L82 PathProgramCache]: Analyzing trace with hash 782487737, now seen corresponding path program 5 times [2021-10-15 20:11:32,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:11:32,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237376925] [2021-10-15 20:11:32,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:11:32,767 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:11:32,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:11:32,777 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:11:32,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:11:32,800 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:11:32,904 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:11:32,904 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:11:32,905 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:11:32,905 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:11:32,905 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-15 20:11:32,905 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:32,905 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:11:32,905 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:11:32,905 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration5_Lasso [2021-10-15 20:11:32,906 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:11:32,906 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:11:32,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:32,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:32,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:32,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:32,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:32,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:32,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:32,999 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:11:32,999 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-15 20:11:32,999 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:33,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:33,000 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:33,011 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:11:33,011 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:11:33,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-15 20:11:33,030 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 20:11:33,031 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-15 20:11:33,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-15 20:11:33,061 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:33,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:33,062 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:33,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-15 20:11:33,063 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:11:33,063 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:11:33,074 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 20:11:33,075 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-15 20:11:33,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-15 20:11:33,097 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:33,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:33,098 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:33,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-15 20:11:33,100 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:11:33,100 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:11:33,109 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 20:11:33,109 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-15 20:11:33,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-15 20:11:33,129 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:33,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:33,130 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:33,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-15 20:11:33,131 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:11:33,131 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:11:33,166 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 20:11:33,167 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-15 20:11:33,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-15 20:11:33,191 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:33,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:33,192 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:33,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-15 20:11:33,194 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:11:33,194 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:11:33,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-15 20:11:33,228 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:33,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:33,229 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:33,233 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-15 20:11:33,233 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:11:33,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-15 20:11:33,290 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-15 20:11:33,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-10-15 20:11:33,293 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:11:33,293 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:11:33,293 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:11:33,293 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:11:33,293 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 20:11:33,293 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:33,293 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:11:33,293 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:11:33,293 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration5_Lasso [2021-10-15 20:11:33,293 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:11:33,293 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:11:33,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:33,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:33,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:33,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:33,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:33,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:33,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:11:33,400 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:11:33,400 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 20:11:33,400 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:33,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:33,403 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:33,411 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 [2021-10-15 20:11:33,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:11:33,420 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:11:33,420 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:11:33,420 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:11:33,420 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:11:33,422 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:11:33,422 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:11:33,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-15 20:11:33,427 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:11:33,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-10-15 20:11:33,450 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:33,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:33,453 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:33,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-15 20:11:33,465 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 [2021-10-15 20:11:33,472 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:11:33,472 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:11:33,472 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:11:33,472 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:11:33,472 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:11:33,472 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:11:33,472 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:11:33,473 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:11:33,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-10-15 20:11:33,493 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:33,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:33,494 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:33,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-15 20:11:33,497 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 [2021-10-15 20:11:33,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:11:33,505 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:11:33,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:11:33,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:11:33,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:11:33,505 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:11:33,505 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:11:33,506 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:11:33,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-10-15 20:11:33,526 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:33,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:33,527 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:33,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-15 20:11:33,529 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 [2021-10-15 20:11:33,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:11:33,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:11:33,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:11:33,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:11:33,543 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:11:33,543 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:11:33,570 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:11:33,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-15 20:11:33,603 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:33,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:33,604 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:33,616 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 [2021-10-15 20:11:33,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:11:33,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:11:33,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:11:33,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:11:33,627 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:11:33,627 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:11:33,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-15 20:11:33,648 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:11:33,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-15 20:11:33,687 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:33,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:33,689 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:33,692 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 [2021-10-15 20:11:33,703 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:11:33,703 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:11:33,703 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:11:33,703 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:11:33,706 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:11:33,706 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:11:33,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-15 20:11:33,718 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:11:33,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-15 20:11:33,750 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:33,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:33,752 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:33,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-15 20:11:33,754 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 [2021-10-15 20:11:33,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:11:33,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:11:33,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:11:33,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:11:33,772 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:11:33,772 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:11:33,785 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 20:11:33,795 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-15 20:11:33,796 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-15 20:11:33,796 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:11:33,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:11:33,799 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:11:33,806 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 20:11:33,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-15 20:11:33,831 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-15 20:11:33,832 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 20:11:33,832 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -2*ULTIMATE.start_main_~y~0 + 2147483647 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2021-10-15 20:11:33,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-15 20:11:33,853 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-10-15 20:11:33,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:11:33,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:11:33,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-15 20:11:33,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:11:33,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:11:33,928 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-15 20:11:33,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:11:33,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:11:33,930 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-15 20:11:33,931 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-10-15 20:11:33,963 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 15 states and 19 transitions. Complement of second has 5 states. [2021-10-15 20:11:33,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-15 20:11:33,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-10-15 20:11:33,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-10-15 20:11:33,964 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 7 letters. Loop has 1 letters. [2021-10-15 20:11:33,965 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:11:33,965 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-15 20:11:33,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:11:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:11:33,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-15 20:11:33,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:11:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:11:34,021 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-15 20:11:34,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:11:34,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:11:34,023 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-15 20:11:34,023 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-10-15 20:11:34,044 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 15 states and 19 transitions. Complement of second has 5 states. [2021-10-15 20:11:34,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-15 20:11:34,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-10-15 20:11:34,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-10-15 20:11:34,045 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 7 letters. Loop has 1 letters. [2021-10-15 20:11:34,045 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:11:34,045 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-15 20:11:34,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:11:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:11:34,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-15 20:11:34,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:11:34,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:11:34,101 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-15 20:11:34,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:11:34,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:11:34,102 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-15 20:11:34,102 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-10-15 20:11:34,125 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 11 states and 13 transitions. Complement of second has 4 states. [2021-10-15 20:11:34,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-15 20:11:34,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-10-15 20:11:34,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2021-10-15 20:11:34,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 1 letters. [2021-10-15 20:11:34,127 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:11:34,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 1 letters. [2021-10-15 20:11:34,127 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:11:34,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-15 20:11:34,128 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:11:34,128 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2021-10-15 20:11:34,128 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 20:11:34,129 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2021-10-15 20:11:34,129 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-15 20:11:34,129 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-15 20:11:34,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-15 20:11:34,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:11:34,129 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 20:11:34,129 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 20:11:34,129 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 20:11:34,130 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-15 20:11:34,130 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-15 20:11:34,130 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 20:11:34,130 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-15 20:11:34,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 08:11:34 BoogieIcfgContainer [2021-10-15 20:11:34,136 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-15 20:11:34,136 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 20:11:34,136 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 20:11:34,137 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 20:11:34,137 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:11:29" (3/4) ... [2021-10-15 20:11:34,140 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-15 20:11:34,140 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 20:11:34,160 INFO L168 Benchmark]: Toolchain (without parser) took 5068.24 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 82.5 MB in the beginning and 113.0 MB in the end (delta: -30.5 MB). Peak memory consumption was 49.2 MB. Max. memory is 16.1 GB. [2021-10-15 20:11:34,162 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory was 57.3 MB in the beginning and 57.3 MB in the end (delta: 30.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:11:34,164 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.03 ms. Allocated memory is still 115.3 MB. Free memory was 82.1 MB in the beginning and 94.1 MB in the end (delta: -12.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 20:11:34,165 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.04 ms. Allocated memory is still 115.3 MB. Free memory was 94.1 MB in the beginning and 92.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:11:34,165 INFO L168 Benchmark]: Boogie Preprocessor took 22.11 ms. Allocated memory is still 115.3 MB. Free memory was 92.9 MB in the beginning and 91.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 20:11:34,165 INFO L168 Benchmark]: RCFGBuilder took 263.60 ms. Allocated memory is still 115.3 MB. Free memory was 91.8 MB in the beginning and 84.2 MB in the end (delta: 7.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-15 20:11:34,166 INFO L168 Benchmark]: BuchiAutomizer took 4461.89 ms. Allocated memory is still 115.3 MB. Free memory was 84.1 MB in the beginning and 37.1 MB in the end (delta: 47.0 MB). Peak memory consumption was 47.0 MB. Max. memory is 16.1 GB. [2021-10-15 20:11:34,166 INFO L168 Benchmark]: Witness Printer took 18.01 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 37.1 MB in the beginning and 113.0 MB in the end (delta: -75.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2021-10-15 20:11:34,169 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory was 57.3 MB in the beginning and 57.3 MB in the end (delta: 30.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 252.03 ms. Allocated memory is still 115.3 MB. Free memory was 82.1 MB in the beginning and 94.1 MB in the end (delta: -12.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.04 ms. Allocated memory is still 115.3 MB. Free memory was 94.1 MB in the beginning and 92.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.11 ms. Allocated memory is still 115.3 MB. Free memory was 92.9 MB in the beginning and 91.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 263.60 ms. Allocated memory is still 115.3 MB. Free memory was 91.8 MB in the beginning and 84.2 MB in the end (delta: 7.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4461.89 ms. Allocated memory is still 115.3 MB. Free memory was 84.1 MB in the beginning and 37.1 MB in the end (delta: 47.0 MB). Peak memory consumption was 47.0 MB. Max. memory is 16.1 GB. * Witness Printer took 18.01 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 37.1 MB in the beginning and 113.0 MB in the end (delta: -75.9 MB). Peak memory consumption was 4.9 MB. 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 5 locations. One deterministic module has affine ranking function -2147483648 * y + 2147483647 * x and consists of 3 locations. One nondeterministic module has affine ranking function 2147483647 + -2 * y and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.4s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 3.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 18.3ms AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 25 SDtfs, 25 SDslu, 10 SDs, 0 SdLazy, 75 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 85.1ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax159 hnf100 lsp57 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf93 smp100 dnf100 smp100 tf102 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 44ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-15 20:11:34,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-15 20:11:34,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2021-10-15 20:11:34,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2021-10-15 20:11:34,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314b76b5-33f7-4755-881a-f4fba24520d8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...