./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b5b0de00a094cfc3c067192c4a42cb6740c5eeeb1cc4308b3b5e47b47532a575 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:40:41,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:40:41,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:40:41,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:40:41,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:40:41,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:40:41,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:40:41,914 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:40:41,917 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:40:41,918 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:40:41,920 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:40:41,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:40:41,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:40:41,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:40:41,932 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:40:41,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:40:41,941 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:40:41,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:40:41,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:40:41,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:40:41,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:40:41,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:40:41,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:40:41,970 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:40:41,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:40:41,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:40:41,983 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:40:41,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:40:41,987 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:40:41,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:40:41,989 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:40:41,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:40:41,993 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:40:41,995 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:40:41,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:40:41,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:40:41,998 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:40:41,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:40:41,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:40:42,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:40:42,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:40:42,003 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 09:40:42,065 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:40:42,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:40:42,067 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:40:42,067 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:40:42,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:40:42,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:40:42,071 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:40:42,071 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:40:42,071 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:40:42,072 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:40:42,073 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:40:42,074 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:40:42,074 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:40:42,075 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:40:42,075 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:40:42,075 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:40:42,076 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:40:42,076 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:40:42,076 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:40:42,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:40:42,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:40:42,078 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:40:42,078 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:40:42,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:40:42,079 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:40:42,079 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:40:42,080 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:40:42,080 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:40:42,080 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:40:42,082 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:40:42,082 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_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5b0de00a094cfc3c067192c4a42cb6740c5eeeb1cc4308b3b5e47b47532a575 [2021-10-28 09:40:42,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:40:42,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:40:42,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:40:42,443 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:40:42,444 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:40:42,445 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c [2021-10-28 09:40:42,523 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/data/51dd120b8/65b914236f3f4139a2187527b3e13e92/FLAG5b6adc66a [2021-10-28 09:40:43,028 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:40:43,029 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c [2021-10-28 09:40:43,035 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/data/51dd120b8/65b914236f3f4139a2187527b3e13e92/FLAG5b6adc66a [2021-10-28 09:40:43,409 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/data/51dd120b8/65b914236f3f4139a2187527b3e13e92 [2021-10-28 09:40:43,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:40:43,414 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:40:43,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:40:43,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:40:43,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:40:43,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:40:43" (1/1) ... [2021-10-28 09:40:43,422 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2074653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:43, skipping insertion in model container [2021-10-28 09:40:43,422 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:40:43" (1/1) ... [2021-10-28 09:40:43,431 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:40:43,443 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:40:43,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:40:43,629 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:40:43,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:40:43,649 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:40:43,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:43 WrapperNode [2021-10-28 09:40:43,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:40:43,651 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:40:43,651 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:40:43,651 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:40:43,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:43" (1/1) ... [2021-10-28 09:40:43,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:43" (1/1) ... [2021-10-28 09:40:43,680 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:40:43,681 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:40:43,681 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:40:43,681 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:40:43,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:43" (1/1) ... [2021-10-28 09:40:43,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:43" (1/1) ... [2021-10-28 09:40:43,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:43" (1/1) ... [2021-10-28 09:40:43,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:43" (1/1) ... [2021-10-28 09:40:43,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:43" (1/1) ... [2021-10-28 09:40:43,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:43" (1/1) ... [2021-10-28 09:40:43,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:43" (1/1) ... [2021-10-28 09:40:43,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:40:43,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:40:43,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:40:43,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:40:43,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:43" (1/1) ... [2021-10-28 09:40:43,709 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:43,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:43,735 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:43,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:40:43,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:40:43,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:40:43,911 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:40:43,912 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-28 09:40:43,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:40:43 BoogieIcfgContainer [2021-10-28 09:40:43,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:40:43,915 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:40:43,915 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:40:43,917 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:40:43,918 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:40:43,918 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:40:43" (1/3) ... [2021-10-28 09:40:43,919 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@755b97e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:40:43, skipping insertion in model container [2021-10-28 09:40:43,919 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:40:43,920 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:43" (2/3) ... [2021-10-28 09:40:43,920 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@755b97e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:40:43, skipping insertion in model container [2021-10-28 09:40:43,920 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:40:43,920 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:40:43" (3/3) ... [2021-10-28 09:40:43,921 INFO L389 chiAutomizerObserver]: Analyzing ICFG b.09-no-inv_assume.c [2021-10-28 09:40:43,968 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:40:43,968 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:40:43,968 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:40:43,969 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:40:43,969 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:40:43,969 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:40:43,969 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:40:43,969 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:40:43,984 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2021-10-28 09:40:43,999 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:40:43,999 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:40:43,999 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:40:44,004 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:40:44,004 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:40:44,004 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:40:44,004 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2021-10-28 09:40:44,005 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:40:44,006 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:40:44,006 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:40:44,006 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:40:44,006 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:40:44,012 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 10#L11true assume main_~x~0 > 0 && main_~y~0 > 0; 3#L12-2true [2021-10-28 09:40:44,012 INFO L793 eck$LassoCheckResult]: Loop: 3#L12-2true assume !!!(0 == main_~x~0); 7#L13true assume main_~x~0 > main_~y~0;main_~x~0 := main_~y~0; 9#L13-2true main_~c~0 := 1 + main_~c~0; 3#L12-2true [2021-10-28 09:40:44,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:44,018 INFO L85 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2021-10-28 09:40:44,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:44,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080871494] [2021-10-28 09:40:44,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:44,027 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:44,095 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:40:44,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:44,117 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:40:44,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:44,120 INFO L85 PathProgramCache]: Analyzing trace with hash 42800, now seen corresponding path program 1 times [2021-10-28 09:40:44,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:44,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362017177] [2021-10-28 09:40:44,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:44,121 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:44,133 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:40:44,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:44,140 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:40:44,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:44,142 INFO L85 PathProgramCache]: Analyzing trace with hash 29684845, now seen corresponding path program 1 times [2021-10-28 09:40:44,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:44,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419572149] [2021-10-28 09:40:44,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:44,143 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:44,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:44,153 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:40:44,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:44,163 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:40:44,264 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:40:44,264 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:40:44,264 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:40:44,265 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:40:44,265 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:40:44,265 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:44,265 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:40:44,265 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:40:44,265 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration1_Loop [2021-10-28 09:40:44,266 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:40:44,266 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:40:44,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:44,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:44,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:44,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:44,512 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:40:44,513 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:40:44,515 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:44,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:44,534 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:44,542 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:44,542 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:44,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 09:40:44,572 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:44,572 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: [] [2021-10-28 09:40:44,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:44,611 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:44,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:44,613 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:44,619 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:44,620 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:44,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 09:40:44,646 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:44,646 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: [] [2021-10-28 09:40:44,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:44,690 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:44,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:44,692 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:44,698 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:44,699 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:44,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 09:40:44,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:44,763 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:44,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:44,764 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:44,775 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:40:44,775 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:44,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 09:40:44,834 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:44,834 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=1}, {ULTIMATE.start_main_~c~0=7}, {ULTIMATE.start_main_~c~0=-7}] Lambdas: [1, 2, 1] Nus: [0, 1] [2021-10-28 09:40:44,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:44,874 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:44,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:44,878 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:44,891 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:44,891 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:44,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 09:40:44,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:44,953 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:44,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:44,955 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:44,957 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:40:44,958 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:44,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 09:40:45,238 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:40:45,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:45,254 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:40:45,255 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:40:45,255 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:40:45,255 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:40:45,255 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:40:45,255 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:45,255 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:40:45,256 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:40:45,256 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration1_Loop [2021-10-28 09:40:45,256 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:40:45,256 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:40:45,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:45,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:45,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:45,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:45,399 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:40:45,405 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:40:45,406 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:45,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:45,408 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:45,414 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 [2021-10-28 09:40:45,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:45,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:45,426 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:45,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:45,432 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:45,433 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:45,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 09:40:45,453 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:45,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:45,493 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:45,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:45,494 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:45,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 09:40:45,505 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 [2021-10-28 09:40:45,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:45,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:45,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:45,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:45,517 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:45,517 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:45,541 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:45,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:45,575 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:45,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:45,577 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:45,590 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 [2021-10-28 09:40:45,599 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:45,600 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:40:45,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:45,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:45,601 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:45,602 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:40:45,602 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:40:45,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 09:40:45,621 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:45,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:45,658 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:45,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:45,659 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:45,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 09:40:45,666 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 [2021-10-28 09:40:45,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:45,677 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:40:45,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:45,678 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 09:40:45,678 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:45,685 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:40:45,685 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:40:45,705 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:40:45,740 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 09:40:45,741 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 09:40:45,742 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:45,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:45,745 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:45,771 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:40:45,771 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:40:45,771 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:40:45,772 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-28 09:40:45,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 09:40:45,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:45,805 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:40:45,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:45,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:40:45,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:40:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:45,860 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:40:45,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:40:45,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:40:45,938 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 [2021-10-28 09:40:45,940 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:40:45,992 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 29 states and 36 transitions. Complement of second has 5 states. [2021-10-28 09:40:46,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:40:46,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:40:46,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2021-10-28 09:40:46,008 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 2 letters. Loop has 3 letters. [2021-10-28 09:40:46,009 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:40:46,010 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 5 letters. Loop has 3 letters. [2021-10-28 09:40:46,010 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:40:46,010 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 2 letters. Loop has 6 letters. [2021-10-28 09:40:46,011 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:40:46,012 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2021-10-28 09:40:46,015 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:40:46,019 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 12 states and 15 transitions. [2021-10-28 09:40:46,020 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-28 09:40:46,020 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-28 09:40:46,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2021-10-28 09:40:46,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:40:46,022 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-10-28 09:40:46,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2021-10-28 09:40:46,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2021-10-28 09:40:46,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:40:46,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2021-10-28 09:40:46,049 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-28 09:40:46,050 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-28 09:40:46,050 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:40:46,050 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2021-10-28 09:40:46,051 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:40:46,051 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:40:46,051 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:40:46,051 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 09:40:46,051 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:40:46,052 INFO L791 eck$LassoCheckResult]: Stem: 84#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 85#L11 assume main_~x~0 > 0 && main_~y~0 > 0; 86#L12-2 assume !!!(0 == main_~x~0); 78#L13 [2021-10-28 09:40:46,052 INFO L793 eck$LassoCheckResult]: Loop: 78#L13 assume !(main_~x~0 > main_~y~0);main_~x~0 := main_~x~0 - 1; 81#L13-2 main_~c~0 := 1 + main_~c~0; 77#L12-2 assume !!!(0 == main_~x~0); 78#L13 [2021-10-28 09:40:46,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:46,052 INFO L85 PathProgramCache]: Analyzing trace with hash 30889, now seen corresponding path program 1 times [2021-10-28 09:40:46,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:46,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355546729] [2021-10-28 09:40:46,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:46,053 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:46,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:46,059 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:40:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:46,064 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:40:46,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:46,065 INFO L85 PathProgramCache]: Analyzing trace with hash 47722, now seen corresponding path program 1 times [2021-10-28 09:40:46,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:46,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695773892] [2021-10-28 09:40:46,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:46,066 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:46,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:46,072 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:40:46,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:46,077 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:40:46,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:46,078 INFO L85 PathProgramCache]: Analyzing trace with hash 920232130, now seen corresponding path program 1 times [2021-10-28 09:40:46,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:46,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114376703] [2021-10-28 09:40:46,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:46,079 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:46,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:46,088 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:40:46,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:46,110 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:40:46,161 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:40:46,161 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:40:46,161 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:40:46,161 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:40:46,161 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:40:46,161 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:46,161 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:40:46,161 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:40:46,162 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration2_Loop [2021-10-28 09:40:46,162 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:40:46,162 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:40:46,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:46,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:46,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:46,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:46,267 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:40:46,267 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:40:46,268 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:46,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:46,281 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:46,332 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:46,332 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:46,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 09:40:46,382 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:46,382 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: [] [2021-10-28 09:40:46,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:46,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:46,416 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:46,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:46,417 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:46,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 09:40:46,419 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:46,419 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:46,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:46,473 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:46,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:46,474 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:46,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 09:40:46,477 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:40:46,477 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:46,523 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:46,523 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=-2, ULTIMATE.start_main_~x~0=-2} Honda state: {ULTIMATE.start_main_~y~0=-2, ULTIMATE.start_main_~x~0=-2} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 14, 14] Nus: [0, 1] [2021-10-28 09:40:46,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:46,562 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:46,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:46,563 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:46,586 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:46,586 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:46,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 09:40:46,608 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:46,608 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:40:46,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:46,651 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:46,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:46,652 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:46,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 09:40:46,662 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:46,662 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:46,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:46,698 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:46,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:46,699 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:46,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 09:40:46,702 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:40:46,702 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:46,745 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:46,745 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=1}, {ULTIMATE.start_main_~c~0=7}, {ULTIMATE.start_main_~c~0=-7}] Lambdas: [1, 2, 1] Nus: [0, 1] [2021-10-28 09:40:46,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:46,825 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:40:46,825 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:40:46,825 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:40:46,825 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:40:46,825 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:40:46,826 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:46,826 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:40:46,826 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:40:46,826 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration2_Lasso [2021-10-28 09:40:46,826 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:40:46,826 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:40:46,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:46,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:46,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:46,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:46,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:46,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:46,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:46,993 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:40:47,001 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:40:47,002 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:47,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:47,005 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:47,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 09:40:47,012 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:47,012 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:47,021 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:47,021 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:40:47,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:47,048 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:47,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:47,049 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:47,059 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:47,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 09:40:47,060 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:47,077 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:47,077 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_4=0} Honda state: {v_rep~unnamed0~0~false_4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:40:47,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:47,100 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:47,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:47,102 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:47,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 09:40:47,116 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:47,116 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:47,137 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:47,138 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:40:47,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:47,166 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:47,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:47,168 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:47,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 09:40:47,169 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:47,169 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:47,179 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:47,179 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:40:47,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:47,205 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:47,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:47,206 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:47,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 09:40:47,208 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:47,208 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:47,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:47,260 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:47,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:47,261 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:47,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 09:40:47,262 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:40:47,262 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:47,287 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:47,287 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=1}, {ULTIMATE.start_main_~c~0=7}, {ULTIMATE.start_main_~c~0=-7}] Lambdas: [1, 2, 1] Nus: [0, 1] [2021-10-28 09:40:47,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:47,312 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:47,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:47,312 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:47,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 09:40:47,314 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:47,314 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:47,329 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:47,329 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_4=1} Honda state: {v_rep~unnamed0~0~true_4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:40:47,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:47,351 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:47,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:47,354 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:47,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 09:40:47,356 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:47,356 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:47,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-10-28 09:40:47,403 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:47,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:47,404 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:47,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 09:40:47,405 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:40:47,406 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:47,608 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:40:47,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:47,611 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:40:47,611 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:40:47,611 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:40:47,611 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:40:47,612 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:40:47,612 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:47,612 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:40:47,612 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:40:47,612 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration2_Lasso [2021-10-28 09:40:47,612 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:40:47,612 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:40:47,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:47,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:47,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:47,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:47,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:47,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:47,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:47,779 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:40:47,779 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:40:47,779 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:47,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:47,780 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:47,784 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 [2021-10-28 09:40:47,794 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:47,794 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:40:47,794 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:47,794 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:47,794 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:47,797 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:40:47,797 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:40:47,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 09:40:47,811 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:47,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:47,848 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:47,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:47,849 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:47,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 09:40:47,852 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 [2021-10-28 09:40:47,859 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:47,860 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:40:47,860 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:47,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:47,860 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:47,860 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:40:47,860 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:40:47,865 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:47,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:47,887 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:47,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:47,888 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:47,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 09:40:47,890 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 [2021-10-28 09:40:47,898 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:47,898 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:40:47,898 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:47,898 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:47,898 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:47,899 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:40:47,899 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:40:47,905 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:47,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-10-28 09:40:47,927 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:47,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:47,928 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:47,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 09:40:47,931 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 [2021-10-28 09:40:47,939 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:47,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:47,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:47,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:47,942 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:47,942 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:47,981 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:48,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:48,018 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:48,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:48,020 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:48,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 09:40:48,023 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 [2021-10-28 09:40:48,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:48,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:48,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:48,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:48,035 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:48,035 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:48,072 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:48,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:48,111 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:48,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:48,113 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:48,118 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 [2021-10-28 09:40:48,128 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:48,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:48,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:48,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:48,131 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:48,131 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:48,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 09:40:48,153 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:48,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:48,184 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:48,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:48,187 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:48,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 09:40:48,191 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 [2021-10-28 09:40:48,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:48,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:48,200 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 09:40:48,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:48,212 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-10-28 09:40:48,212 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-28 09:40:48,244 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:40:48,266 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-10-28 09:40:48,267 INFO L444 ModelExtractionUtils]: 7 out of 16 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-10-28 09:40:48,267 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:48,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:48,281 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:48,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 09:40:48,325 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:40:48,350 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2021-10-28 09:40:48,350 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:40:48,350 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [2*ULTIMATE.start_main_~x~0 - 1 >= 0] [2021-10-28 09:40:48,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:48,428 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-10-28 09:40:48,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:48,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 09:40:48,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:40:48,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:48,485 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:40:48,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:40:48,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:40:48,552 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-28 09:40:48,552 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:40:48,607 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 21 transitions. Complement of second has 5 states. [2021-10-28 09:40:48,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 0 non-accepting loop states 2 accepting loop states [2021-10-28 09:40:48,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:40:48,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2021-10-28 09:40:48,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. Stem has 3 letters. Loop has 3 letters. [2021-10-28 09:40:48,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:40:48,609 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 09:40:48,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:48,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 09:40:48,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:40:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:48,663 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:40:48,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:40:48,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:40:48,718 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-28 09:40:48,718 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:40:48,813 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 21 states and 26 transitions. Complement of second has 6 states. [2021-10-28 09:40:48,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:40:48,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:40:48,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2021-10-28 09:40:48,814 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 3 letters. Loop has 3 letters. [2021-10-28 09:40:48,814 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:40:48,815 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 6 letters. Loop has 3 letters. [2021-10-28 09:40:48,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:40:48,815 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 3 letters. Loop has 6 letters. [2021-10-28 09:40:48,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:40:48,816 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2021-10-28 09:40:48,817 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:40:48,818 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 13 states and 16 transitions. [2021-10-28 09:40:48,818 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-28 09:40:48,819 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-28 09:40:48,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2021-10-28 09:40:48,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:40:48,819 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-10-28 09:40:48,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2021-10-28 09:40:48,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 10. [2021-10-28 09:40:48,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.2) internal successors, (12), 9 states have internal predecessors, (12), 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) [2021-10-28 09:40:48,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2021-10-28 09:40:48,821 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-10-28 09:40:48,821 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-10-28 09:40:48,822 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:40:48,822 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2021-10-28 09:40:48,822 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:40:48,824 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:40:48,824 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:40:48,825 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 09:40:48,825 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:40:48,826 INFO L791 eck$LassoCheckResult]: Stem: 211#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 212#L11 assume main_~x~0 > 0 && main_~y~0 > 0; 204#L12-2 assume !!!(0 == main_~x~0); 205#L13 assume main_~x~0 > main_~y~0;main_~x~0 := main_~y~0; 209#L13-2 main_~c~0 := 1 + main_~c~0; 213#L12-2 [2021-10-28 09:40:48,826 INFO L793 eck$LassoCheckResult]: Loop: 213#L12-2 assume !!!(0 == main_~x~0); 207#L13 assume !(main_~x~0 > main_~y~0);main_~x~0 := main_~x~0 - 1; 208#L13-2 main_~c~0 := 1 + main_~c~0; 213#L12-2 [2021-10-28 09:40:48,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:48,827 INFO L85 PathProgramCache]: Analyzing trace with hash 29684845, now seen corresponding path program 2 times [2021-10-28 09:40:48,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:48,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850947828] [2021-10-28 09:40:48,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:48,828 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:48,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:48,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:48,841 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:40:48,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:48,848 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:40:48,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:48,849 INFO L85 PathProgramCache]: Analyzing trace with hash 42862, now seen corresponding path program 2 times [2021-10-28 09:40:48,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:48,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441088627] [2021-10-28 09:40:48,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:48,850 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:48,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:48,856 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:40:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:48,861 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:40:48,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:48,862 INFO L85 PathProgramCache]: Analyzing trace with hash -422032510, now seen corresponding path program 1 times [2021-10-28 09:40:48,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:48,863 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132142610] [2021-10-28 09:40:48,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:48,863 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:48,874 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:40:48,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:48,883 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:40:48,909 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:40:48,909 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:40:48,910 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:40:48,910 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:40:48,910 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:40:48,910 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:48,910 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:40:48,910 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:40:48,910 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration3_Loop [2021-10-28 09:40:48,911 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:40:48,911 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:40:48,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:48,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:48,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:48,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:48,987 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:40:48,987 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:40:48,987 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:48,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:48,988 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:48,990 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:48,991 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:49,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 09:40:49,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:49,054 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:49,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:49,057 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:49,060 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:40:49,060 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:49,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 09:40:49,093 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:49,093 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=1}, {ULTIMATE.start_main_~c~0=7}, {ULTIMATE.start_main_~c~0=-7}] Lambdas: [1, 2, 1] Nus: [0, 1] [2021-10-28 09:40:49,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:49,134 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:49,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:49,135 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:49,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 09:40:49,137 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:49,137 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:49,151 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:49,151 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_6=1} Honda state: {v_rep~unnamed0~0~true_6=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:40:49,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:49,175 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:49,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:49,178 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:49,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 09:40:49,180 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:49,180 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:49,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:49,210 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:49,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:49,211 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:49,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 09:40:49,216 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:40:49,216 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:49,254 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:49,254 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=-8, ULTIMATE.start_main_~x~0=-8} Honda state: {ULTIMATE.start_main_~y~0=-8, ULTIMATE.start_main_~x~0=-8} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=-1, ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~y~0=1, ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 13, 1] Nus: [1, 0] [2021-10-28 09:40:49,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:49,289 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:49,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:49,289 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:49,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 09:40:49,291 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:49,291 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:49,305 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:49,306 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_6=0} Honda state: {v_rep~unnamed0~0~false_6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:40:49,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-10-28 09:40:49,390 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:40:49,391 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:40:49,391 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:40:49,391 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:40:49,391 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:40:49,391 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:49,391 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:40:49,392 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:40:49,392 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration3_Lasso [2021-10-28 09:40:49,392 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:40:49,392 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:40:49,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:49,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:49,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:49,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:49,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:49,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:49,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:49,510 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:40:49,510 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:40:49,511 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:49,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:49,512 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:49,514 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:49,515 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:49,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 09:40:49,537 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:49,537 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:40:49,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:49,576 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:49,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:49,577 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:49,582 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:49,582 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:49,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-28 09:40:49,617 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:49,617 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:40:49,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:49,655 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:49,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:49,657 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:49,659 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:49,659 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:49,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-28 09:40:49,681 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:49,682 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:40:49,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:49,718 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:49,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:49,719 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:49,722 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:49,722 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:49,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-28 09:40:49,745 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:49,745 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:40:49,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:49,786 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:49,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:49,787 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:49,789 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:49,789 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:49,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-28 09:40:49,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:49,852 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:49,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:49,853 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:49,857 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:40:49,857 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:49,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-28 09:40:49,888 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:49,888 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=1} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=1}, {ULTIMATE.start_main_~c~0=7}, {ULTIMATE.start_main_~c~0=-7}] Lambdas: [1, 2, 1] Nus: [0, 1] [2021-10-28 09:40:49,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:49,926 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:49,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:49,927 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:49,929 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:49,929 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:49,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-28 09:40:49,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:49,989 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:49,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:49,990 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:49,992 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:40:49,992 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:50,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-28 09:40:50,085 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:40:50,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:50,089 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:40:50,089 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:40:50,090 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:40:50,090 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:40:50,090 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:40:50,090 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:50,090 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:40:50,090 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:40:50,090 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration3_Lasso [2021-10-28 09:40:50,090 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:40:50,090 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:40:50,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:50,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:50,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:50,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:50,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:50,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:50,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:50,226 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:40:50,226 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:40:50,226 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:50,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:50,230 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:50,234 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 [2021-10-28 09:40:50,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-28 09:40:50,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:50,243 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:40:50,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:50,244 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:50,244 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:50,244 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:40:50,244 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:40:50,245 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:50,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2021-10-28 09:40:50,268 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:50,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:50,269 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:50,270 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 [2021-10-28 09:40:50,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-28 09:40:50,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:50,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:40:50,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:50,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:50,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:50,280 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:40:50,280 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:40:50,281 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:50,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-10-28 09:40:50,304 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:50,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:50,317 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:50,320 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:40:50,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-28 09:40:50,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:50,335 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:40:50,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:50,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:50,336 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:50,336 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:40:50,336 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:40:50,347 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:50,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-10-28 09:40:50,383 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:50,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:50,384 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:50,394 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 [2021-10-28 09:40:50,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:50,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:50,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:50,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:50,415 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:50,415 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:50,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-28 09:40:50,429 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:50,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2021-10-28 09:40:50,457 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:50,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:50,458 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:50,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-28 09:40:50,460 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 [2021-10-28 09:40:50,468 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:50,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:50,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:50,469 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:50,473 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:50,473 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:50,493 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:50,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:50,532 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:50,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:50,533 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:50,542 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:40:50,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:50,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:50,552 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 09:40:50,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:50,562 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-10-28 09:40:50,562 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-28 09:40:50,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-28 09:40:50,589 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:40:50,610 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-10-28 09:40:50,610 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-10-28 09:40:50,610 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:50,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:50,613 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:50,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-28 09:40:50,614 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:40:50,625 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2021-10-28 09:40:50,625 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:40:50,626 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~x~0 >= 0] [2021-10-28 09:40:50,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-10-28 09:40:50,653 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-10-28 09:40:50,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:50,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:50,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:40:50,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:40:50,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:50,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:50,798 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:40:50,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:40:50,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:40:50,877 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2021-10-28 09:40:50,877 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4 Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:40:50,954 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4. Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 35 transitions. Complement of second has 10 states. [2021-10-28 09:40:50,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 3 stem states 2 non-accepting loop states 2 accepting loop states [2021-10-28 09:40:50,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:40:50,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2021-10-28 09:40:50,956 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 12 transitions. Stem has 5 letters. Loop has 3 letters. [2021-10-28 09:40:50,957 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:40:50,957 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 12 transitions. Stem has 8 letters. Loop has 3 letters. [2021-10-28 09:40:50,958 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:40:50,958 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 12 transitions. Stem has 5 letters. Loop has 6 letters. [2021-10-28 09:40:50,959 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:40:50,959 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2021-10-28 09:40:50,965 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:40:50,969 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 19 states and 24 transitions. [2021-10-28 09:40:50,970 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-28 09:40:50,970 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-28 09:40:50,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 24 transitions. [2021-10-28 09:40:50,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:40:50,970 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-10-28 09:40:50,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 24 transitions. [2021-10-28 09:40:50,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 11. [2021-10-28 09:40:50,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:40:50,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2021-10-28 09:40:50,975 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-10-28 09:40:50,975 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-10-28 09:40:50,975 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 09:40:50,975 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2021-10-28 09:40:50,977 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:40:50,978 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:40:50,978 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:40:50,979 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2021-10-28 09:40:50,979 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:40:50,979 INFO L791 eck$LassoCheckResult]: Stem: 318#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 319#L11 assume main_~x~0 > 0 && main_~y~0 > 0; 311#L12-2 assume !!!(0 == main_~x~0); 312#L13 assume !(main_~x~0 > main_~y~0);main_~x~0 := main_~x~0 - 1; 317#L13-2 main_~c~0 := 1 + main_~c~0; 313#L12-2 assume !!!(0 == main_~x~0); 314#L13 assume main_~x~0 > main_~y~0;main_~x~0 := main_~y~0; 321#L13-2 main_~c~0 := 1 + main_~c~0; 320#L12-2 [2021-10-28 09:40:50,979 INFO L793 eck$LassoCheckResult]: Loop: 320#L12-2 assume !!!(0 == main_~x~0); 315#L13 assume !(main_~x~0 > main_~y~0);main_~x~0 := main_~x~0 - 1; 316#L13-2 main_~c~0 := 1 + main_~c~0; 320#L12-2 [2021-10-28 09:40:50,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:50,980 INFO L85 PathProgramCache]: Analyzing trace with hash -420185530, now seen corresponding path program 2 times [2021-10-28 09:40:50,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:50,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466311071] [2021-10-28 09:40:50,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:50,981 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:51,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:51,037 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:40:51,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:40:51,053 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466311071] [2021-10-28 09:40:51,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466311071] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:40:51,054 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:40:51,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:40:51,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737504252] [2021-10-28 09:40:51,057 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:40:51,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:51,058 INFO L85 PathProgramCache]: Analyzing trace with hash 42862, now seen corresponding path program 3 times [2021-10-28 09:40:51,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:51,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89953724] [2021-10-28 09:40:51,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:51,059 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:51,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:51,064 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:40:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:51,068 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:40:51,094 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:40:51,094 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:40:51,094 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:40:51,095 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:40:51,095 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:40:51,095 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:51,095 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:40:51,095 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:40:51,095 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration4_Loop [2021-10-28 09:40:51,095 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:40:51,095 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:40:51,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:51,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:51,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:51,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:51,162 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:40:51,163 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:40:51,163 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:51,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:51,164 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:51,169 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:51,169 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:51,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-28 09:40:51,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-10-28 09:40:51,210 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:51,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:51,211 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:51,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-28 09:40:51,212 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:40:51,212 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:51,254 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:51,254 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=-8, ULTIMATE.start_main_~x~0=-8} Honda state: {ULTIMATE.start_main_~y~0=-8, ULTIMATE.start_main_~x~0=-8} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=-1, ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~y~0=1, ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 13, 1] Nus: [1, 0] [2021-10-28 09:40:51,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:51,287 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:51,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:51,289 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:51,298 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:51,298 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:51,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-28 09:40:51,317 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:51,317 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:40:51,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-10-28 09:40:51,343 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:51,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:51,344 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:51,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-28 09:40:51,347 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:51,347 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:51,361 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:51,361 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:40:51,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:51,384 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:51,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:51,385 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:51,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-28 09:40:51,387 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:51,389 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:51,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2021-10-28 09:40:51,429 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:51,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:51,431 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:51,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-28 09:40:51,433 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:40:51,433 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:51,461 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:51,461 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=1}, {ULTIMATE.start_main_~c~0=7}, {ULTIMATE.start_main_~c~0=-7}] Lambdas: [1, 2, 1] Nus: [0, 1] [2021-10-28 09:40:51,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:51,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:40:51,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:40:51,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:40:51,489 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2021-10-28 09:40:51,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:40:51,504 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2021-10-28 09:40:51,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:40:51,505 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2021-10-28 09:40:51,506 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:40:51,506 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 13 states and 14 transitions. [2021-10-28 09:40:51,506 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-28 09:40:51,506 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-28 09:40:51,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 14 transitions. [2021-10-28 09:40:51,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:40:51,507 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-10-28 09:40:51,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 14 transitions. [2021-10-28 09:40:51,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2021-10-28 09:40:51,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 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) [2021-10-28 09:40:51,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2021-10-28 09:40:51,509 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-10-28 09:40:51,509 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-10-28 09:40:51,509 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 09:40:51,509 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 12 transitions. [2021-10-28 09:40:51,510 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:40:51,510 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:40:51,510 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:40:51,510 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1] [2021-10-28 09:40:51,510 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:40:51,510 INFO L791 eck$LassoCheckResult]: Stem: 348#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 349#L11 assume main_~x~0 > 0 && main_~y~0 > 0; 353#L12-2 assume !!!(0 == main_~x~0); 354#L13 assume main_~x~0 > main_~y~0;main_~x~0 := main_~y~0; 352#L13-2 main_~c~0 := 1 + main_~c~0; 346#L12-2 assume !!!(0 == main_~x~0); 347#L13 assume main_~x~0 > main_~y~0;main_~x~0 := main_~y~0; 351#L13-2 main_~c~0 := 1 + main_~c~0; 344#L12-2 [2021-10-28 09:40:51,511 INFO L793 eck$LassoCheckResult]: Loop: 344#L12-2 assume !!!(0 == main_~x~0); 345#L13 assume !(main_~x~0 > main_~y~0);main_~x~0 := main_~x~0 - 1; 350#L13-2 main_~c~0 := 1 + main_~c~0; 344#L12-2 [2021-10-28 09:40:51,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:51,511 INFO L85 PathProgramCache]: Analyzing trace with hash -422032572, now seen corresponding path program 3 times [2021-10-28 09:40:51,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:51,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84428888] [2021-10-28 09:40:51,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:51,512 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:51,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:51,551 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:40:51,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:40:51,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84428888] [2021-10-28 09:40:51,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84428888] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:40:51,552 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:40:51,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:40:51,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351937039] [2021-10-28 09:40:51,552 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:40:51,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:51,553 INFO L85 PathProgramCache]: Analyzing trace with hash 42862, now seen corresponding path program 4 times [2021-10-28 09:40:51,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:51,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229597505] [2021-10-28 09:40:51,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:51,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:51,567 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:40:51,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:51,580 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:40:51,610 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:40:51,610 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:40:51,610 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:40:51,610 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:40:51,610 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:40:51,611 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:51,611 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:40:51,611 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:40:51,611 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration5_Loop [2021-10-28 09:40:51,611 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:40:51,611 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:40:51,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:51,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:51,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:51,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:51,685 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:40:51,685 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:40:51,685 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:51,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:51,686 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:51,689 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:51,689 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:51,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-28 09:40:51,712 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:51,712 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_10=0} Honda state: {v_rep~unnamed0~0~false_10=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:40:51,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:51,749 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:51,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:51,753 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:51,757 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:51,758 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:51,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-28 09:40:51,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:51,818 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:51,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:51,819 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:51,821 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:40:51,821 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:51,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-28 09:40:51,858 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:51,859 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=-8, ULTIMATE.start_main_~x~0=-8} Honda state: {ULTIMATE.start_main_~y~0=-8, ULTIMATE.start_main_~x~0=-8} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=-1, ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~y~0=1, ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 13, 1] Nus: [1, 0] [2021-10-28 09:40:51,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:51,897 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:51,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:51,898 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:51,900 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:51,900 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:51,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-28 09:40:51,923 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:51,923 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_10=1} Honda state: {v_rep~unnamed0~0~true_10=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:40:51,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2021-10-28 09:40:51,949 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:51,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:51,950 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:51,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-28 09:40:51,954 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:40:51,954 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:51,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2021-10-28 09:40:51,987 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:51,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:51,988 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:51,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-28 09:40:51,989 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:40:51,989 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:40:52,014 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:40:52,015 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=1}, {ULTIMATE.start_main_~c~0=7}, {ULTIMATE.start_main_~c~0=-7}] Lambdas: [1, 2, 1] Nus: [0, 1] [2021-10-28 09:40:52,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:52,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:40:52,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:40:52,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:40:52,049 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2021-10-28 09:40:52,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:40:52,054 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2021-10-28 09:40:52,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:40:52,055 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 6 transitions. [2021-10-28 09:40:52,055 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:40:52,055 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 0 states and 0 transitions. [2021-10-28 09:40:52,055 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:40:52,055 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:40:52,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:40:52,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:40:52,056 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:40:52,056 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:40:52,056 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:40:52,056 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 09:40:52,056 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:40:52,056 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:40:52,056 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 09:40:52,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:40:52 BoogieIcfgContainer [2021-10-28 09:40:52,063 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:40:52,063 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:40:52,064 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:40:52,064 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:40:52,064 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:40:43" (3/4) ... [2021-10-28 09:40:52,068 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:40:52,068 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:40:52,070 INFO L168 Benchmark]: Toolchain (without parser) took 8655.16 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 55.6 MB in the beginning and 48.1 MB in the end (delta: 7.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:40:52,070 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 90.2 MB. Free memory was 60.3 MB in the beginning and 60.3 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:40:52,071 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.57 ms. Allocated memory is still 90.2 MB. Free memory was 55.3 MB in the beginning and 67.0 MB in the end (delta: -11.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:40:52,071 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.27 ms. Allocated memory is still 90.2 MB. Free memory was 67.0 MB in the beginning and 65.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:40:52,071 INFO L168 Benchmark]: Boogie Preprocessor took 17.79 ms. Allocated memory is still 90.2 MB. Free memory was 65.7 MB in the beginning and 64.9 MB in the end (delta: 823.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:40:52,072 INFO L168 Benchmark]: RCFGBuilder took 214.93 ms. Allocated memory is still 90.2 MB. Free memory was 64.9 MB in the beginning and 57.0 MB in the end (delta: 7.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:40:52,072 INFO L168 Benchmark]: BuchiAutomizer took 8147.99 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 57.0 MB in the beginning and 48.1 MB in the end (delta: 8.9 MB). Peak memory consumption was 39.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:40:52,073 INFO L168 Benchmark]: Witness Printer took 4.67 ms. Allocated memory is still 117.4 MB. Free memory is still 48.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:40:52,075 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 90.2 MB. Free memory was 60.3 MB in the beginning and 60.3 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 234.57 ms. Allocated memory is still 90.2 MB. Free memory was 55.3 MB in the beginning and 67.0 MB in the end (delta: -11.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.27 ms. Allocated memory is still 90.2 MB. Free memory was 67.0 MB in the beginning and 65.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.79 ms. Allocated memory is still 90.2 MB. Free memory was 65.7 MB in the beginning and 64.9 MB in the end (delta: 823.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 214.93 ms. Allocated memory is still 90.2 MB. Free memory was 64.9 MB in the beginning and 57.0 MB in the end (delta: 7.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 8147.99 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 57.0 MB in the beginning and 48.1 MB in the end (delta: 8.9 MB). Peak memory consumption was 39.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.67 ms. Allocated memory is still 117.4 MB. Free memory is still 48.1 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 5 terminating modules (2 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x + -1 * y and consists of 4 locations. One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function x and consists of 7 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.1s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 7.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 15 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 3. Nontrivial modules had stage [2, 1, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 32 SDtfs, 22 SDslu, 12 SDs, 0 SdLazy, 44 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN2 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax156 hnf100 lsp46 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq165 hnf95 smp100 dnf157 smp100 tf103 neg94 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 165ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 19 LassoNonterminationAnalysisSatUnbounded: 11 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 09:40:52,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05462a56-1ea8-4d3b-9608-b9ddf1e54e04/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...