./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/c.01_assume.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/c.01_assume.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash da7ccbcfff0bcaf24fe1bd516f01da1d9e0ab2a4 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:03:31,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:03:31,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:03:31,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:03:31,978 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:03:31,982 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:03:31,984 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:03:31,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:03:31,991 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:03:31,997 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:03:31,998 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:03:32,000 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:03:32,001 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:03:32,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:03:32,005 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:03:32,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:03:32,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:03:32,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:03:32,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:03:32,026 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:03:32,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:03:32,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:03:32,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:03:32,035 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:03:32,044 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:03:32,044 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:03:32,045 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:03:32,047 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:03:32,048 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:03:32,049 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:03:32,050 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:03:32,051 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:03:32,053 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:03:32,054 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:03:32,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:03:32,056 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:03:32,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:03:32,057 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:03:32,057 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:03:32,058 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:03:32,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:03:32,060 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-13 00:03:32,104 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:03:32,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:03:32,105 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:03:32,105 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:03:32,106 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:03:32,107 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:03:32,107 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:03:32,107 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:03:32,108 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:03:32,108 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:03:32,109 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:03:32,109 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:03:32,110 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:03:32,110 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:03:32,110 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:03:32,110 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:03:32,111 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:03:32,111 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:03:32,111 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:03:32,111 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:03:32,112 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:03:32,112 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:03:32,112 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:03:32,112 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:03:32,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:03:32,113 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:03:32,113 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:03:32,113 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:03:32,114 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:03:32,115 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:03:32,115 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_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da7ccbcfff0bcaf24fe1bd516f01da1d9e0ab2a4 [2021-10-13 00:03:32,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:03:32,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:03:32,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:03:32,472 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:03:32,473 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:03:32,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/termination-restricted-15/c.01_assume.c [2021-10-13 00:03:32,569 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/data/74548b2b4/fba80d0dc0cb4d10a719af634705d101/FLAG45ca22f7f [2021-10-13 00:03:32,991 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:03:32,991 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/sv-benchmarks/c/termination-restricted-15/c.01_assume.c [2021-10-13 00:03:33,001 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/data/74548b2b4/fba80d0dc0cb4d10a719af634705d101/FLAG45ca22f7f [2021-10-13 00:03:33,398 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/data/74548b2b4/fba80d0dc0cb4d10a719af634705d101 [2021-10-13 00:03:33,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:03:33,402 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:03:33,404 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:03:33,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:03:33,408 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:03:33,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:03:33" (1/1) ... [2021-10-13 00:03:33,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@553787fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:33, skipping insertion in model container [2021-10-13 00:03:33,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:03:33" (1/1) ... [2021-10-13 00:03:33,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:03:33,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:03:33,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:03:33,629 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:03:33,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:03:33,654 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:03:33,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:33 WrapperNode [2021-10-13 00:03:33,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:03:33,656 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:03:33,656 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:03:33,656 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:03:33,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:33" (1/1) ... [2021-10-13 00:03:33,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:33" (1/1) ... [2021-10-13 00:03:33,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:03:33,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:03:33,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:03:33,689 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:03:33,697 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:33" (1/1) ... [2021-10-13 00:03:33,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:33" (1/1) ... [2021-10-13 00:03:33,698 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:33" (1/1) ... [2021-10-13 00:03:33,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:33" (1/1) ... [2021-10-13 00:03:33,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:33" (1/1) ... [2021-10-13 00:03:33,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:33" (1/1) ... [2021-10-13 00:03:33,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:33" (1/1) ... [2021-10-13 00:03:33,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:03:33,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:03:33,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:03:33,710 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:03:33,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:33" (1/1) ... [2021-10-13 00:03:33,718 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:03:33,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:03:33,750 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:03:33,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:03:33,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:03:33,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:03:33,932 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:03:33,933 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-13 00:03:33,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:03:33 BoogieIcfgContainer [2021-10-13 00:03:33,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:03:33,937 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:03:33,937 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:03:33,940 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:03:33,941 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:03:33,941 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:03:33" (1/3) ... [2021-10-13 00:03:33,943 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d8f2fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:03:33, skipping insertion in model container [2021-10-13 00:03:33,943 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:03:33,944 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:33" (2/3) ... [2021-10-13 00:03:33,944 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d8f2fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:03:33, skipping insertion in model container [2021-10-13 00:03:33,944 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:03:33,944 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:03:33" (3/3) ... [2021-10-13 00:03:33,946 INFO L389 chiAutomizerObserver]: Analyzing ICFG c.01_assume.c [2021-10-13 00:03:34,007 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:03:34,008 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:03:34,008 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:03:34,008 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:03:34,008 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:03:34,008 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:03:34,009 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:03:34,009 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:03:34,024 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) [2021-10-13 00:03:34,044 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:03:34,044 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:03:34,045 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:03:34,050 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-13 00:03:34,051 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:03:34,051 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:03:34,051 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) [2021-10-13 00:03:34,053 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:03:34,053 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:03:34,053 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:03:34,054 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-13 00:03:34,054 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:03:34,060 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 6#L9-2true [2021-10-13 00:03:34,061 INFO L793 eck$LassoCheckResult]: Loop: 6#L9-2true assume !!(main_~x~0 >= 0 && main_~y~0 > 0);main_~y~0 := 1; 9#L11-2true assume !((main_~x~0 > main_~y~0 && main_~y~0 > 0) && main_~y~0 < 1073741824); 8#L11-3true main_~x~0 := main_~x~0 - 1; 6#L9-2true [2021-10-13 00:03:34,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:03:34,069 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-13 00:03:34,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:03:34,078 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366870282] [2021-10-13 00:03:34,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:03:34,080 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:03:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:03:34,168 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:03:34,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:03:34,194 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:03:34,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:03:34,197 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2021-10-13 00:03:34,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:03:34,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284128043] [2021-10-13 00:03:34,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:03:34,200 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:03:34,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:03:34,228 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:03:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:03:34,247 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:03:34,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:03:34,249 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2021-10-13 00:03:34,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:03:34,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239872657] [2021-10-13 00:03:34,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:03:34,250 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:03:34,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:03:34,268 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:03:34,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:03:34,284 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:03:34,463 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:03:34,464 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:03:34,464 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:03:34,465 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:03:34,465 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:03:34,465 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:03:34,465 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:03:34,465 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:03:34,465 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01_assume.c_Iteration1_Loop [2021-10-13 00:03:34,466 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:03:34,466 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:03:34,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:03:34,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:03:34,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:03:34,604 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:03:34,605 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:03:34,607 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:03:34,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:03:34,612 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:03:34,633 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:03:34,633 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:03:34,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 00:03:34,664 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:03:34,664 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:03:34,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:03:34,695 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:03:34,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:03:34,697 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:03:34,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 00:03:34,701 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:03:34,701 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:03:34,721 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:03:34,721 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:03:34,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:03:34,755 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:03:34,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:03:34,757 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:03:34,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 00:03:34,765 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:03:34,765 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:03:34,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:03:34,823 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:03:34,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:03:34,824 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:03:34,833 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:03:34,833 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:03:34,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 00:03:34,886 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:03:34,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:03:34,893 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:03:34,893 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:03:34,894 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:03:34,894 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:03:34,894 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:03:34,894 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:03:34,894 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:03:34,894 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:03:34,894 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01_assume.c_Iteration1_Loop [2021-10-13 00:03:34,895 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:03:34,895 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:03:34,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:03:34,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:03:34,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:03:34,966 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:03:34,971 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:03:34,972 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:03:34,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:03:34,974 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:03:34,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 00:03:34,982 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:03:34,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:03:34,992 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:03:34,992 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:03:34,992 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:03:34,996 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:03:34,996 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:03:35,042 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:03:35,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:03:35,076 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:03:35,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:03:35,081 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:03:35,087 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:03:35,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:03:35,096 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:03:35,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:03:35,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:03:35,097 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:03:35,102 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:03:35,104 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:03:35,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 00:03:35,139 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:03:35,144 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:03:35,144 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:03:35,145 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:03:35,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:03:35,147 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:03:35,151 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:03:35,152 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:03:35,152 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:03:35,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 00:03:35,153 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2021-10-13 00:03:35,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:03:35,177 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:03:35,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:03:35,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:03:35,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:03:35,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:03:35,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:03:35,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:03:35,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:03:35,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:03:35,328 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-13 00:03:35,333 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) [2021-10-13 00:03:35,399 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. [2021-10-13 00:03:35,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 00:03:35,401 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) [2021-10-13 00:03:35,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2021-10-13 00:03:35,403 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2021-10-13 00:03:35,405 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:03:35,405 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2021-10-13 00:03:35,405 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:03:35,406 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2021-10-13 00:03:35,406 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:03:35,407 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2021-10-13 00:03:35,415 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 00:03:35,420 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2021-10-13 00:03:35,421 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-13 00:03:35,421 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-10-13 00:03:35,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2021-10-13 00:03:35,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:03:35,422 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-13 00:03:35,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2021-10-13 00:03:35,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2021-10-13 00:03:35,445 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) [2021-10-13 00:03:35,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2021-10-13 00:03:35,447 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2021-10-13 00:03:35,447 INFO L587 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2021-10-13 00:03:35,447 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:03:35,447 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2021-10-13 00:03:35,448 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 00:03:35,448 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:03:35,448 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:03:35,448 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-13 00:03:35,448 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-13 00:03:35,449 INFO L791 eck$LassoCheckResult]: Stem: 70#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 71#L9-2 assume !!(main_~x~0 >= 0 && main_~y~0 > 0);main_~y~0 := 1; 73#L11-2 [2021-10-13 00:03:35,449 INFO L793 eck$LassoCheckResult]: Loop: 73#L11-2 assume !!((main_~x~0 > main_~y~0 && main_~y~0 > 0) && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 73#L11-2 [2021-10-13 00:03:35,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:03:35,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-13 00:03:35,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:03:35,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977945225] [2021-10-13 00:03:35,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:03:35,451 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:03:35,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:03:35,460 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:03:35,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:03:35,467 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:03:35,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:03:35,468 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2021-10-13 00:03:35,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:03:35,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217785398] [2021-10-13 00:03:35,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:03:35,469 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:03:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:03:35,487 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:03:35,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:03:35,491 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:03:35,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:03:35,491 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2021-10-13 00:03:35,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:03:35,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307310112] [2021-10-13 00:03:35,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:03:35,492 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:03:35,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:03:35,506 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:03:35,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:03:35,527 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:03:35,563 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:03:35,563 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:03:35,563 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:03:35,563 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:03:35,563 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:03:35,564 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:03:35,564 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:03:35,564 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:03:35,564 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01_assume.c_Iteration2_Loop [2021-10-13 00:03:35,564 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:03:35,564 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:03:35,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:03:35,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:03:35,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:03:35,615 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:03:35,616 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:03:35,616 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:03:35,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:03:35,645 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:03:35,651 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:03:35,651 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:03:35,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-13 00:03:35,681 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:03:35,682 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:03:35,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:03:35,720 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:03:35,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:03:35,722 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:03:35,728 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:03:35,728 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:03:35,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-13 00:03:35,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-13 00:03:35,787 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:03:35,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:03:35,789 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:03:35,799 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:03:35,799 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:03:35,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-13 00:03:35,864 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:03:35,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-13 00:03:35,872 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:03:35,872 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:03:35,872 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:03:35,872 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:03:35,872 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:03:35,872 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:03:35,873 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:03:35,873 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:03:35,873 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01_assume.c_Iteration2_Loop [2021-10-13 00:03:35,873 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:03:35,873 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:03:35,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:03:35,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:03:35,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:03:35,933 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:03:35,933 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:03:35,934 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:03:35,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:03:35,937 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:03:35,948 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:03:35,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:03:35,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:03:35,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:03:35,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:03:35,963 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:03:35,963 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:03:35,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-13 00:03:35,980 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:03:36,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-13 00:03:36,018 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:03:36,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:03:36,019 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:03:36,029 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:03:36,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:03:36,038 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:03:36,039 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:03:36,039 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:03:36,039 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:03:36,041 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:03:36,041 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:03:36,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-13 00:03:36,060 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:03:36,065 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:03:36,065 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:03:36,066 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:03:36,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:03:36,067 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:03:36,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-13 00:03:36,077 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:03:36,077 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:03:36,078 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:03:36,078 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -2*ULTIMATE.start_main_~y~0 + 2147483647 Supporting invariants [] [2021-10-13 00:03:36,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-13 00:03:36,098 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:03:36,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:03:36,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:03:36,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:03:36,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:03:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:03:36,131 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:03:36,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:03:36,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:03:36,132 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 [2021-10-13 00:03:36,133 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) [2021-10-13 00:03:36,144 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. [2021-10-13 00:03:36,145 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 [2021-10-13 00:03:36,145 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) [2021-10-13 00:03:36,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-10-13 00:03:36,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2021-10-13 00:03:36,146 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:03:36,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2021-10-13 00:03:36,146 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:03:36,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-13 00:03:36,147 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:03:36,147 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2021-10-13 00:03:36,149 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 00:03:36,151 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 9 states and 13 transitions. [2021-10-13 00:03:36,151 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-13 00:03:36,151 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2021-10-13 00:03:36,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2021-10-13 00:03:36,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:03:36,152 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2021-10-13 00:03:36,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2021-10-13 00:03:36,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 6. [2021-10-13 00:03:36,153 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) [2021-10-13 00:03:36,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2021-10-13 00:03:36,154 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-10-13 00:03:36,154 INFO L587 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-10-13 00:03:36,154 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:03:36,154 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2021-10-13 00:03:36,155 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 00:03:36,155 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:03:36,157 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:03:36,158 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2021-10-13 00:03:36,158 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-13 00:03:36,158 INFO L791 eck$LassoCheckResult]: Stem: 118#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 119#L9-2 assume !!(main_~x~0 >= 0 && main_~y~0 > 0);main_~y~0 := 1; 120#L11-2 assume !((main_~x~0 > main_~y~0 && main_~y~0 > 0) && main_~y~0 < 1073741824); 123#L11-3 main_~x~0 := main_~x~0 - 1; 121#L9-2 assume !!(main_~x~0 >= 0 && main_~y~0 > 0);main_~y~0 := 1; 122#L11-2 [2021-10-13 00:03:36,158 INFO L793 eck$LassoCheckResult]: Loop: 122#L11-2 assume !!((main_~x~0 > main_~y~0 && main_~y~0 > 0) && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 122#L11-2 [2021-10-13 00:03:36,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:03:36,169 INFO L82 PathProgramCache]: Analyzing trace with hash 29867642, now seen corresponding path program 2 times [2021-10-13 00:03:36,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:03:36,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545353124] [2021-10-13 00:03:36,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:03:36,170 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:03:36,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:03:36,176 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:03:36,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:03:36,182 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:03:36,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:03:36,183 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2021-10-13 00:03:36,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:03:36,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650238115] [2021-10-13 00:03:36,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:03:36,184 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:03:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:03:36,188 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:03:36,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:03:36,191 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:03:36,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:03:36,192 INFO L82 PathProgramCache]: Analyzing trace with hash 925896921, now seen corresponding path program 1 times [2021-10-13 00:03:36,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:03:36,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327101652] [2021-10-13 00:03:36,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:03:36,193 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:03:36,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:03:36,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-13 00:03:36,298 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:03:36,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:03:36,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327101652] [2021-10-13 00:03:36,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327101652] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:03:36,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655626089] [2021-10-13 00:03:36,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:03:36,306 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:03:36,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:03:36,311 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:03:36,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-13 00:03:36,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-13 00:03:36,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:03:36,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:03:36,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:03:36,468 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:03:36,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655626089] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:03:36,469 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:03:36,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-10-13 00:03:36,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800299270] [2021-10-13 00:03:36,494 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:03:36,494 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:03:36,494 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:03:36,494 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:03:36,494 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:03:36,494 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:03:36,494 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:03:36,495 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:03:36,495 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01_assume.c_Iteration3_Loop [2021-10-13 00:03:36,495 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:03:36,495 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:03:36,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:03:36,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:03:36,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:03:36,542 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:03:36,543 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:03:36,543 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:03:36,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:03:36,544 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:03:36,553 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:03:36,553 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:03:36,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-13 00:03:36,585 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:03:36,585 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:03:36,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-10-13 00:03:36,621 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:03:36,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:03:36,623 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:03:36,629 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:03:36,629 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:03:36,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-13 00:03:36,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-13 00:03:36,692 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:03:36,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:03:36,693 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:03:36,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-13 00:03:36,704 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:03:36,704 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:03:36,750 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:03:36,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-13 00:03:36,753 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:03:36,753 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:03:36,753 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:03:36,753 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:03:36,753 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:03:36,753 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:03:36,753 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:03:36,753 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:03:36,753 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01_assume.c_Iteration3_Loop [2021-10-13 00:03:36,753 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:03:36,753 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:03:36,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:03:36,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:03:36,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:03:36,816 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:03:36,816 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:03:36,817 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:03:36,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:03:36,818 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:03:36,829 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:03:36,837 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:03:36,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:03:36,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:03:36,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:03:36,842 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:03:36,842 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:03:36,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-13 00:03:36,860 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:03:36,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-13 00:03:36,897 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:03:36,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:03:36,899 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:03:36,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-13 00:03:36,906 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:03:36,913 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:03:36,913 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:03:36,913 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:03:36,913 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:03:36,913 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:03:36,915 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:03:36,915 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:03:36,926 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:03:36,931 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:03:36,931 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:03:36,931 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:03:36,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:03:36,932 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:03:36,939 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:03:36,940 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:03:36,940 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:03:36,940 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -2*ULTIMATE.start_main_~y~0 + 2147483647 Supporting invariants [] [2021-10-13 00:03:36,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-13 00:03:36,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-13 00:03:36,977 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:03:36,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:03:36,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:03:36,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:03:36,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:03:37,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:03:37,014 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:03:37,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:03:37,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:03:37,016 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 [2021-10-13 00:03:37,016 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:03:37,025 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 15 transitions. Complement of second has 5 states. [2021-10-13 00:03:37,025 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 [2021-10-13 00:03:37,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:03:37,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-10-13 00:03:37,026 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 1 letters. [2021-10-13 00:03:37,026 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:03:37,026 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:03:37,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:03:37,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:03:37,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:03:37,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:03:37,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:03:37,056 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:03:37,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:03:37,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:03:37,057 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 [2021-10-13 00:03:37,057 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:03:37,065 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 15 transitions. Complement of second has 5 states. [2021-10-13 00:03:37,065 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 [2021-10-13 00:03:37,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:03:37,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-10-13 00:03:37,066 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 1 letters. [2021-10-13 00:03:37,066 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:03:37,066 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:03:37,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:03:37,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:03:37,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:03:37,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:03:37,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:03:37,096 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:03:37,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:03:37,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:03:37,097 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 [2021-10-13 00:03:37,097 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:03:37,106 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 9 states and 11 transitions. Complement of second has 4 states. [2021-10-13 00:03:37,107 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 [2021-10-13 00:03:37,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:03:37,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2021-10-13 00:03:37,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 1 letters. [2021-10-13 00:03:37,108 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:03:37,108 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 1 letters. [2021-10-13 00:03:37,108 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:03:37,108 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-13 00:03:37,108 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:03:37,108 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 11 transitions. [2021-10-13 00:03:37,109 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:03:37,109 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2021-10-13 00:03:37,109 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 00:03:37,109 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 00:03:37,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 00:03:37,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:03:37,110 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:03:37,110 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:03:37,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:03:37,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 00:03:37,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-13 00:03:37,114 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:03:37,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:03:37,117 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-13 00:03:37,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 00:03:37,117 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-13 00:03:37,117 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:03:37,117 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 00:03:37,117 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 00:03:37,117 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 00:03:37,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 00:03:37,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:03:37,118 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:03:37,118 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:03:37,118 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:03:37,118 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 00:03:37,118 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:03:37,118 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:03:37,118 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 00:03:37,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:03:37 BoogieIcfgContainer [2021-10-13 00:03:37,124 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:03:37,124 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:03:37,124 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:03:37,125 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:03:37,125 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:03:33" (3/4) ... [2021-10-13 00:03:37,128 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:03:37,128 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:03:37,130 INFO L168 Benchmark]: Toolchain (without parser) took 3726.82 ms. Allocated memory was 102.8 MB in the beginning and 142.6 MB in the end (delta: 39.8 MB). Free memory was 69.3 MB in the beginning and 74.5 MB in the end (delta: -5.1 MB). Peak memory consumption was 34.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:03:37,130 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 102.8 MB. Free memory is still 56.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:03:37,131 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.33 ms. Allocated memory is still 102.8 MB. Free memory was 69.1 MB in the beginning and 79.0 MB in the end (delta: -9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:03:37,131 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.11 ms. Allocated memory is still 102.8 MB. Free memory was 79.0 MB in the beginning and 77.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:03:37,132 INFO L168 Benchmark]: Boogie Preprocessor took 19.56 ms. Allocated memory is still 102.8 MB. Free memory was 77.6 MB in the beginning and 76.9 MB in the end (delta: 724.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:03:37,132 INFO L168 Benchmark]: RCFGBuilder took 226.86 ms. Allocated memory is still 102.8 MB. Free memory was 76.9 MB in the beginning and 69.3 MB in the end (delta: 7.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:03:37,133 INFO L168 Benchmark]: BuchiAutomizer took 3186.98 ms. Allocated memory was 102.8 MB in the beginning and 142.6 MB in the end (delta: 39.8 MB). Free memory was 68.9 MB in the beginning and 74.5 MB in the end (delta: -5.5 MB). Peak memory consumption was 37.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:03:37,133 INFO L168 Benchmark]: Witness Printer took 3.87 ms. Allocated memory is still 142.6 MB. Free memory is still 74.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:03:37,136 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 102.8 MB. Free memory is still 56.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 251.33 ms. Allocated memory is still 102.8 MB. Free memory was 69.1 MB in the beginning and 79.0 MB in the end (delta: -9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.11 ms. Allocated memory is still 102.8 MB. Free memory was 79.0 MB in the beginning and 77.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.56 ms. Allocated memory is still 102.8 MB. Free memory was 77.6 MB in the beginning and 76.9 MB in the end (delta: 724.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 226.86 ms. Allocated memory is still 102.8 MB. Free memory was 76.9 MB in the beginning and 69.3 MB in the end (delta: 7.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3186.98 ms. Allocated memory was 102.8 MB in the beginning and 142.6 MB in the end (delta: 39.8 MB). Free memory was 68.9 MB in the beginning and 74.5 MB in the end (delta: -5.5 MB). Peak memory consumption was 37.3 MB. Max. memory is 16.1 GB. * Witness Printer took 3.87 ms. Allocated memory is still 142.6 MB. Free memory is still 74.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 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 2147483647 + -2 * y and consists of 3 locations. One nondeterministic module has affine ranking function 2147483647 + -2 * y and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 12.3ms AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 19 SDtfs, 22 SDslu, 9 SDs, 0 SdLazy, 32 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 32.7ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax171 hnf100 lsp58 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq142 hnf94 smp100 dnf100 smp100 tf108 neg100 sie119 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 70ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 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! [2021-10-13 00:03:37,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-13 00:03:37,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-13 00:03:37,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf5882e-6f22-47b0-b002-1455a933f9d2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...