./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8553bd7027647a5604588c30aa29c454809a172163824e055b8bdeea70d5613d --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:03:53,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:03:53,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:03:53,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:03:53,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:03:53,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:03:53,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:03:53,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:03:53,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:03:53,422 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:03:53,423 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:03:53,425 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:03:53,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:03:53,426 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:03:53,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:03:53,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:03:53,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:03:53,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:03:53,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:03:53,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:03:53,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:03:53,440 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:03:53,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:03:53,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:03:53,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:03:53,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:03:53,447 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:03:53,448 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:03:53,448 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:03:53,450 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:03:53,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:03:53,451 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:03:53,452 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:03:53,453 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:03:53,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:03:53,454 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:03:53,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:03:53,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:03:53,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:03:53,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:03:53,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:03:53,457 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-07 01:03:53,481 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:03:53,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:03:53,482 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:03:53,482 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:03:53,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:03:53,483 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:03:53,483 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:03:53,483 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-07 01:03:53,483 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-07 01:03:53,483 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-07 01:03:53,484 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-07 01:03:53,484 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-07 01:03:53,484 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-07 01:03:53,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:03:53,484 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-07 01:03:53,485 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 01:03:53,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:03:53,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-07 01:03:53,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-07 01:03:53,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-07 01:03:53,485 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 01:03:53,485 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-07 01:03:53,485 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:03:53,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-07 01:03:53,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:03:53,486 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:03:53,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:03:53,486 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 01:03:53,486 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:03:53,487 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-07 01:03:53,488 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_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8553bd7027647a5604588c30aa29c454809a172163824e055b8bdeea70d5613d [2021-12-07 01:03:53,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:03:53,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:03:53,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:03:53,701 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:03:53,702 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:03:53,703 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1.c [2021-12-07 01:03:53,751 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/data/3b1a51d3a/ff304182d1904eb39c78a2bc8b8a4d43/FLAG08082ebcd [2021-12-07 01:03:54,114 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:03:54,114 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1.c [2021-12-07 01:03:54,120 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/data/3b1a51d3a/ff304182d1904eb39c78a2bc8b8a4d43/FLAG08082ebcd [2021-12-07 01:03:54,512 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/data/3b1a51d3a/ff304182d1904eb39c78a2bc8b8a4d43 [2021-12-07 01:03:54,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:03:54,516 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:03:54,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:03:54,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:03:54,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:03:54,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:03:54" (1/1) ... [2021-12-07 01:03:54,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b7ef3a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:03:54, skipping insertion in model container [2021-12-07 01:03:54,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:03:54" (1/1) ... [2021-12-07 01:03:54,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:03:54,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:03:54,652 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:03:54,655 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:03:54,664 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:03:54,672 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:03:54,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:03:54 WrapperNode [2021-12-07 01:03:54,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:03:54,674 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:03:54,674 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:03:54,674 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:03:54,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:03:54" (1/1) ... [2021-12-07 01:03:54,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:03:54" (1/1) ... [2021-12-07 01:03:54,703 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2021-12-07 01:03:54,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:03:54,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:03:54,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:03:54,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:03:54,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:03:54" (1/1) ... [2021-12-07 01:03:54,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:03:54" (1/1) ... [2021-12-07 01:03:54,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:03:54" (1/1) ... [2021-12-07 01:03:54,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:03:54" (1/1) ... [2021-12-07 01:03:54,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:03:54" (1/1) ... [2021-12-07 01:03:54,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:03:54" (1/1) ... [2021-12-07 01:03:54,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:03:54" (1/1) ... [2021-12-07 01:03:54,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:03:54,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:03:54,723 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:03:54,723 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:03:54,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:03:54" (1/1) ... [2021-12-07 01:03:54,731 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:54,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:54,754 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:54,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-07 01:03:54,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:03:54,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:03:54,864 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:03:54,866 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:03:54,933 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 01:03:54,940 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 01:03:54,940 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-07 01:03:54,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:03:54 BoogieIcfgContainer [2021-12-07 01:03:54,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 01:03:54,943 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-07 01:03:54,944 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-07 01:03:54,947 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-07 01:03:54,948 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 01:03:54,948 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 01:03:54" (1/3) ... [2021-12-07 01:03:54,949 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6370f4fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 01:03:54, skipping insertion in model container [2021-12-07 01:03:54,949 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 01:03:54,950 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:03:54" (2/3) ... [2021-12-07 01:03:54,950 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6370f4fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 01:03:54, skipping insertion in model container [2021-12-07 01:03:54,950 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 01:03:54,950 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:03:54" (3/3) ... [2021-12-07 01:03:54,952 INFO L388 chiAutomizerObserver]: Analyzing ICFG BradleyMannaSipma-CAV2005-Fig1.c [2021-12-07 01:03:55,001 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-07 01:03:55,001 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-07 01:03:55,001 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-07 01:03:55,001 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-07 01:03:55,002 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-07 01:03:55,002 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-07 01:03:55,002 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-07 01:03:55,002 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-07 01:03:55,017 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) [2021-12-07 01:03:55,036 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-07 01:03:55,036 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:03:55,036 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:03:55,042 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-07 01:03:55,043 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-07 01:03:55,043 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-07 01:03:55,043 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) [2021-12-07 01:03:55,044 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-07 01:03:55,045 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:03:55,045 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:03:55,045 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-07 01:03:55,045 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-07 01:03:55,052 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 4#L18true assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 8#L20-2true [2021-12-07 01:03:55,053 INFO L793 eck$LassoCheckResult]: Loop: 8#L20-2true assume !!(main_~y1~0#1 != main_~y2~0#1); 10#L20true assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 8#L20-2true [2021-12-07 01:03:55,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:03:55,059 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-12-07 01:03:55,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:03:55,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824691698] [2021-12-07 01:03:55,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:03:55,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:03:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:55,153 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:03:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:55,173 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:03:55,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:03:55,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 1 times [2021-12-07 01:03:55,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:03:55,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716416768] [2021-12-07 01:03:55,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:03:55,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:03:55,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:55,190 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:03:55,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:55,196 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:03:55,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:03:55,199 INFO L85 PathProgramCache]: Analyzing trace with hash 28693989, now seen corresponding path program 1 times [2021-12-07 01:03:55,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:03:55,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737040508] [2021-12-07 01:03:55,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:03:55,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:03:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:55,209 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:03:55,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:55,216 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:03:55,303 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 01:03:55,303 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 01:03:55,304 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 01:03:55,304 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 01:03:55,304 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-07 01:03:55,304 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:55,304 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 01:03:55,304 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 01:03:55,305 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration1_Lasso [2021-12-07 01:03:55,305 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 01:03:55,305 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 01:03:55,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:55,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:55,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:55,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:55,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:55,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:55,421 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 01:03:55,422 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-07 01:03:55,424 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:55,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:55,425 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:55,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-07 01:03:55,429 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-07 01:03:55,433 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:03:55,451 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-07 01:03:55,451 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-07 01:03:55,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-07 01:03:55,484 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:55,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:55,485 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:55,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-07 01:03:55,486 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-07 01:03:55,487 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:03:55,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-07 01:03:55,522 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:55,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:55,524 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:55,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-07 01:03:55,525 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-07 01:03:55,525 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:03:55,655 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-07 01:03:55,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-07 01:03:55,658 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 01:03:55,658 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 01:03:55,658 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 01:03:55,658 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 01:03:55,658 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-07 01:03:55,658 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:55,658 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 01:03:55,658 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 01:03:55,659 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration1_Lasso [2021-12-07 01:03:55,659 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 01:03:55,659 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 01:03:55,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:55,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:55,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:55,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:55,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:55,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:55,720 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 01:03:55,724 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-07 01:03:55,725 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:55,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:55,726 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:55,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-07 01:03:55,728 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:03:55,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:03:55,738 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:03:55,738 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:03:55,738 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:03:55,745 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:03:55,745 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:03:55,754 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-07 01:03:55,763 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-07 01:03:55,763 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-07 01:03:55,765 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:55,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:55,769 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:55,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-07 01:03:55,774 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-07 01:03:55,784 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-07 01:03:55,785 INFO L513 LassoAnalysis]: Proved termination. [2021-12-07 01:03:55,786 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y1~0#1, ULTIMATE.start_main_~y2~0#1) = 1*ULTIMATE.start_main_~y1~0#1 - 1*ULTIMATE.start_main_~y2~0#1 Supporting invariants [1*ULTIMATE.start_main_~y2~0#1 - 1 >= 0] [2021-12-07 01:03:55,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-07 01:03:55,808 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-12-07 01:03:55,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:03:55,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:03:55,848 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-07 01:03:55,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:03:55,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:03:55,863 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-07 01:03:55,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:03:55,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:03:55,902 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-12-07 01:03:55,903 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 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:03:55,945 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 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 29 states and 36 transitions. Complement of second has 6 states. [2021-12-07 01:03:55,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-07 01:03:55,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:03:55,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2021-12-07 01:03:55,953 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 2 letters. [2021-12-07 01:03:55,954 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:03:55,954 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-07 01:03:55,955 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:03:55,955 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 4 letters. [2021-12-07 01:03:55,955 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:03:55,956 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2021-12-07 01:03:55,959 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-07 01:03:55,962 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 9 states and 12 transitions. [2021-12-07 01:03:55,963 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-12-07 01:03:55,964 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-12-07 01:03:55,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2021-12-07 01:03:55,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-07 01:03:55,965 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2021-12-07 01:03:55,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2021-12-07 01:03:55,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-12-07 01:03:55,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) 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) [2021-12-07 01:03:55,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2021-12-07 01:03:55,990 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2021-12-07 01:03:55,991 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2021-12-07 01:03:55,991 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-07 01:03:55,991 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2021-12-07 01:03:55,991 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-07 01:03:55,992 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:03:55,992 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:03:55,992 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-07 01:03:55,992 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-07 01:03:55,992 INFO L791 eck$LassoCheckResult]: Stem: 88#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 89#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 86#L18 assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 87#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 94#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 90#L20-2 [2021-12-07 01:03:55,993 INFO L793 eck$LassoCheckResult]: Loop: 90#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 91#L20 assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 90#L20-2 [2021-12-07 01:03:55,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:03:55,993 INFO L85 PathProgramCache]: Analyzing trace with hash 28693991, now seen corresponding path program 1 times [2021-12-07 01:03:55,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:03:55,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213304583] [2021-12-07 01:03:55,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:03:55,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:03:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:56,025 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:03:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:56,030 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:03:56,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:03:56,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 2 times [2021-12-07 01:03:56,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:03:56,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779259607] [2021-12-07 01:03:56,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:03:56,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:03:56,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:56,036 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:03:56,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:56,040 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:03:56,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:03:56,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1805122026, now seen corresponding path program 1 times [2021-12-07 01:03:56,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:03:56,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445610246] [2021-12-07 01:03:56,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:03:56,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:03:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:56,048 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:03:56,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-07 01:03:56,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:56,056 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:03:56,108 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 01:03:56,108 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 01:03:56,109 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 01:03:56,109 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 01:03:56,109 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-07 01:03:56,109 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:56,109 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 01:03:56,109 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 01:03:56,109 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration2_Lasso [2021-12-07 01:03:56,109 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 01:03:56,109 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 01:03:56,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:56,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:56,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:56,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:56,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:56,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:56,170 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 01:03:56,170 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-07 01:03:56,170 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:56,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:56,171 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:56,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-07 01:03:56,172 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-07 01:03:56,172 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:03:56,185 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-07 01:03:56,185 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-07 01:03:56,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-07 01:03:56,204 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:56,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:56,205 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:56,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-07 01:03:56,208 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-07 01:03:56,208 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:03:56,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-07 01:03:56,243 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:56,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:56,244 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:56,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-07 01:03:56,246 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-07 01:03:56,246 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:03:56,371 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-07 01:03:56,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-07 01:03:56,374 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 01:03:56,374 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 01:03:56,374 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 01:03:56,374 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 01:03:56,374 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-07 01:03:56,375 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:56,375 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 01:03:56,375 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 01:03:56,375 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration2_Lasso [2021-12-07 01:03:56,375 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 01:03:56,375 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 01:03:56,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:56,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:56,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:56,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:56,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:56,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:56,429 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 01:03:56,429 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-07 01:03:56,430 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:56,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:56,431 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:56,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-07 01:03:56,432 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:03:56,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:03:56,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:03:56,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:03:56,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:03:56,444 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:03:56,444 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:03:56,448 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:03:56,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-07 01:03:56,472 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:56,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:56,473 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:56,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-07 01:03:56,474 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:03:56,483 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:03:56,483 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:03:56,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:03:56,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:03:56,484 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:03:56,485 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:03:56,485 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:03:56,486 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:03:56,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-12-07 01:03:56,516 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:56,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:56,517 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:56,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-07 01:03:56,518 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:03:56,525 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:03:56,525 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:03:56,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:03:56,526 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:03:56,526 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:03:56,526 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:03:56,526 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:03:56,527 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:03:56,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-07 01:03:56,546 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:56,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:56,546 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:56,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-07 01:03:56,547 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:03:56,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:03:56,556 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:03:56,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:03:56,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:03:56,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:03:56,557 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:03:56,557 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:03:56,559 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:03:56,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-12-07 01:03:56,588 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:56,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:56,589 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:56,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-07 01:03:56,590 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 [2021-12-07 01:03:56,597 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:03:56,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:03:56,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:03:56,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:03:56,600 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:03:56,601 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:03:56,604 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:03:56,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-12-07 01:03:56,623 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:56,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:56,624 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:56,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-07 01:03:56,625 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:03:56,632 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:03:56,632 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:03:56,632 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:03:56,633 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:03:56,636 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:03:56,636 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:03:56,642 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-07 01:03:56,648 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-12-07 01:03:56,648 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-07 01:03:56,648 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:56,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:56,649 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:56,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-07 01:03:56,669 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-07 01:03:56,679 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-07 01:03:56,679 INFO L513 LassoAnalysis]: Proved termination. [2021-12-07 01:03:56,679 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y2~0#1, ULTIMATE.start_main_~y1~0#1) = -1*ULTIMATE.start_main_~y2~0#1 + 1*ULTIMATE.start_main_~y1~0#1 Supporting invariants [1*ULTIMATE.start_main_~y2~0#1 - 1 >= 0] [2021-12-07 01:03:56,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-07 01:03:56,704 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-12-07 01:03:56,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:03:56,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:03:56,721 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-07 01:03:56,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:03:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:03:56,739 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-07 01:03:56,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:03:56,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:03:56,748 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2021-12-07 01:03:56,748 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:03:56,769 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 18 transitions. Complement of second has 6 states. [2021-12-07 01:03:56,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-07 01:03:56,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:03:56,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-12-07 01:03:56,770 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-07 01:03:56,770 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:03:56,770 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2021-12-07 01:03:56,771 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:03:56,771 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2021-12-07 01:03:56,771 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:03:56,771 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2021-12-07 01:03:56,771 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-07 01:03:56,772 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 18 transitions. [2021-12-07 01:03:56,772 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-12-07 01:03:56,772 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-12-07 01:03:56,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2021-12-07 01:03:56,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-07 01:03:56,772 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-12-07 01:03:56,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2021-12-07 01:03:56,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-12-07 01:03:56,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:03:56,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2021-12-07 01:03:56,774 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-12-07 01:03:56,774 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-12-07 01:03:56,774 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-07 01:03:56,774 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2021-12-07 01:03:56,775 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-07 01:03:56,775 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:03:56,775 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:03:56,775 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1] [2021-12-07 01:03:56,775 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-07 01:03:56,775 INFO L791 eck$LassoCheckResult]: Stem: 163#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 164#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 161#L18 assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 162#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 171#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 170#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 169#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 165#L20-2 [2021-12-07 01:03:56,775 INFO L793 eck$LassoCheckResult]: Loop: 165#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 166#L20 assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 165#L20-2 [2021-12-07 01:03:56,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:03:56,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1805122028, now seen corresponding path program 2 times [2021-12-07 01:03:56,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:03:56,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599800426] [2021-12-07 01:03:56,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:03:56,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:03:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:56,781 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:03:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:56,785 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:03:56,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:03:56,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 3 times [2021-12-07 01:03:56,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:03:56,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445181181] [2021-12-07 01:03:56,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:03:56,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:03:56,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:56,789 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:03:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:56,792 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:03:56,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:03:56,793 INFO L85 PathProgramCache]: Analyzing trace with hash -444518225, now seen corresponding path program 2 times [2021-12-07 01:03:56,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:03:56,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638852134] [2021-12-07 01:03:56,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:03:56,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:03:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:56,801 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:03:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:56,809 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:03:56,847 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 01:03:56,847 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 01:03:56,847 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 01:03:56,847 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 01:03:56,847 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-07 01:03:56,847 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:56,847 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 01:03:56,847 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 01:03:56,848 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration3_Lasso [2021-12-07 01:03:56,848 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 01:03:56,848 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 01:03:56,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:56,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:56,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:56,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:56,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:56,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:56,896 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 01:03:56,897 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-07 01:03:56,897 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:56,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:56,898 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:56,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-07 01:03:56,899 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-07 01:03:56,899 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:03:56,912 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-07 01:03:56,912 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-07 01:03:56,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-07 01:03:56,944 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:56,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:56,945 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:56,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-07 01:03:56,946 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-07 01:03:56,946 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:03:56,957 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-07 01:03:56,957 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-07 01:03:56,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-07 01:03:56,978 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:56,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:56,979 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:56,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-07 01:03:56,980 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-07 01:03:56,980 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:03:56,992 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-07 01:03:56,992 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-07 01:03:57,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-12-07 01:03:57,011 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:57,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:57,012 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:57,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-07 01:03:57,014 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-07 01:03:57,014 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:03:57,022 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-07 01:03:57,022 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-07 01:03:57,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-12-07 01:03:57,041 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:57,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:57,041 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:57,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-07 01:03:57,042 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-07 01:03:57,042 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:03:57,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-12-07 01:03:57,082 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:57,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:57,082 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:57,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-07 01:03:57,125 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-07 01:03:57,126 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:03:57,262 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-07 01:03:57,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-07 01:03:57,265 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 01:03:57,265 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 01:03:57,265 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 01:03:57,265 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 01:03:57,265 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-07 01:03:57,266 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:57,266 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 01:03:57,266 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 01:03:57,266 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration3_Lasso [2021-12-07 01:03:57,266 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 01:03:57,266 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 01:03:57,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:57,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:57,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:57,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:57,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:57,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:57,305 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 01:03:57,305 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-07 01:03:57,305 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:57,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:57,306 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:57,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-07 01:03:57,309 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:03:57,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:03:57,316 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:03:57,316 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:03:57,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:03:57,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:03:57,317 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:03:57,317 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:03:57,318 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:03:57,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-12-07 01:03:57,337 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:57,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:57,337 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:57,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-07 01:03:57,339 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:03:57,345 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:03:57,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:03:57,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:03:57,346 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:03:57,348 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:03:57,348 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:03:57,351 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:03:57,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-12-07 01:03:57,369 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:57,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:57,370 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:57,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-07 01:03:57,371 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:03:57,378 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:03:57,378 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:03:57,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:03:57,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:03:57,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:03:57,379 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:03:57,379 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:03:57,380 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:03:57,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-07 01:03:57,399 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:57,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:57,399 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:57,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-07 01:03:57,402 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:03:57,409 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:03:57,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:03:57,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:03:57,409 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:03:57,412 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:03:57,412 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:03:57,418 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-07 01:03:57,423 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-12-07 01:03:57,423 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-07 01:03:57,423 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:57,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:57,424 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:57,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-07 01:03:57,425 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-07 01:03:57,435 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-07 01:03:57,435 INFO L513 LassoAnalysis]: Proved termination. [2021-12-07 01:03:57,435 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y1~0#1, ULTIMATE.start_main_~y2~0#1) = 1*ULTIMATE.start_main_~y1~0#1 - 1*ULTIMATE.start_main_~y2~0#1 Supporting invariants [1*ULTIMATE.start_main_~y2~0#1 - 1 >= 0] [2021-12-07 01:03:57,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-12-07 01:03:57,455 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-12-07 01:03:57,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:03:57,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:03:57,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-07 01:03:57,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:03:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:03:57,490 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-07 01:03:57,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:03:57,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:03:57,498 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2021-12-07 01:03:57,498 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:03:57,516 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 22 transitions. Complement of second has 6 states. [2021-12-07 01:03:57,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-07 01:03:57,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:03:57,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-12-07 01:03:57,517 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2021-12-07 01:03:57,517 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:03:57,517 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-07 01:03:57,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:03:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:03:57,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-07 01:03:57,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:03:57,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:03:57,561 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-07 01:03:57,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:03:57,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:03:57,571 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 1 loop predicates [2021-12-07 01:03:57,571 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:03:57,590 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 22 transitions. Complement of second has 6 states. [2021-12-07 01:03:57,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-07 01:03:57,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:03:57,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-12-07 01:03:57,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2021-12-07 01:03:57,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-12-07 01:03:57,592 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:03:57,592 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-07 01:03:57,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:03:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:03:57,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-07 01:03:57,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:03:57,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-07 01:03:57,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:03:57,628 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-07 01:03:57,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:03:57,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:03:57,635 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2021-12-07 01:03:57,635 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:03:57,652 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 17 states and 25 transitions. Complement of second has 5 states. [2021-12-07 01:03:57,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-07 01:03:57,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:03:57,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2021-12-07 01:03:57,654 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2021-12-07 01:03:57,654 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:03:57,654 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 2 letters. [2021-12-07 01:03:57,654 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:03:57,654 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 4 letters. [2021-12-07 01:03:57,655 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:03:57,655 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 25 transitions. [2021-12-07 01:03:57,656 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-07 01:03:57,657 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 15 states and 21 transitions. [2021-12-07 01:03:57,657 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-12-07 01:03:57,657 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-12-07 01:03:57,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 21 transitions. [2021-12-07 01:03:57,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-07 01:03:57,657 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2021-12-07 01:03:57,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 21 transitions. [2021-12-07 01:03:57,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 7. [2021-12-07 01:03:57,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:03:57,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-12-07 01:03:57,659 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-12-07 01:03:57,659 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-12-07 01:03:57,659 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-07 01:03:57,659 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2021-12-07 01:03:57,659 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-07 01:03:57,659 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:03:57,659 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:03:57,660 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-07 01:03:57,660 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-07 01:03:57,660 INFO L791 eck$LassoCheckResult]: Stem: 355#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 356#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 353#L18 assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 354#L20-2 [2021-12-07 01:03:57,660 INFO L793 eck$LassoCheckResult]: Loop: 354#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 358#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 354#L20-2 [2021-12-07 01:03:57,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:03:57,660 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 2 times [2021-12-07 01:03:57,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:03:57,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531006646] [2021-12-07 01:03:57,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:03:57,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:03:57,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:57,665 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:03:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:57,667 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:03:57,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:03:57,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1414, now seen corresponding path program 1 times [2021-12-07 01:03:57,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:03:57,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095148477] [2021-12-07 01:03:57,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:03:57,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:03:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:57,673 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:03:57,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:57,677 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:03:57,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:03:57,677 INFO L85 PathProgramCache]: Analyzing trace with hash 28693991, now seen corresponding path program 3 times [2021-12-07 01:03:57,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:03:57,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342211200] [2021-12-07 01:03:57,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:03:57,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:03:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:57,682 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:03:57,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:57,686 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:03:57,704 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 01:03:57,704 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 01:03:57,705 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 01:03:57,705 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 01:03:57,705 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-07 01:03:57,705 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:57,705 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 01:03:57,705 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 01:03:57,705 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration4_Lasso [2021-12-07 01:03:57,705 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 01:03:57,705 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 01:03:57,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:57,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:57,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:57,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:57,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:57,717 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:57,748 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 01:03:57,748 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-07 01:03:57,748 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:57,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:57,749 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:57,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-07 01:03:57,750 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-07 01:03:57,750 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:03:57,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-12-07 01:03:57,789 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:57,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:57,790 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:57,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-07 01:03:57,791 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-07 01:03:57,791 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:03:57,910 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-07 01:03:57,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-12-07 01:03:57,912 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 01:03:57,912 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 01:03:57,912 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 01:03:57,912 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 01:03:57,912 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-07 01:03:57,913 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:57,913 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 01:03:57,913 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 01:03:57,913 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration4_Lasso [2021-12-07 01:03:57,913 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 01:03:57,913 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 01:03:57,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:57,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:57,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:57,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:57,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:57,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:57,959 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 01:03:57,959 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-07 01:03:57,959 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:57,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:57,960 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:57,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-12-07 01:03:57,961 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:03:57,968 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:03:57,968 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:03:57,968 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:03:57,968 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:03:57,968 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:03:57,968 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:03:57,968 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:03:57,969 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:03:57,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-12-07 01:03:57,987 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:57,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:57,988 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:57,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-12-07 01:03:57,989 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:03:57,996 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:03:57,996 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:03:57,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:03:57,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:03:57,999 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:03:57,999 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:03:58,001 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:03:58,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-12-07 01:03:58,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:58,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:58,020 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:58,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-12-07 01:03:58,021 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:03:58,028 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:03:58,029 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:03:58,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:03:58,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:03:58,029 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:03:58,029 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:03:58,029 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:03:58,030 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:03:58,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-12-07 01:03:58,048 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:58,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:58,049 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:58,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-12-07 01:03:58,050 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:03:58,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:03:58,058 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:03:58,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:03:58,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:03:58,060 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:03:58,060 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:03:58,066 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-07 01:03:58,071 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-12-07 01:03:58,071 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-07 01:03:58,071 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:58,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:58,072 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:58,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-12-07 01:03:58,073 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-07 01:03:58,083 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-07 01:03:58,083 INFO L513 LassoAnalysis]: Proved termination. [2021-12-07 01:03:58,083 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y2~0#1, ULTIMATE.start_main_~y1~0#1) = 1*ULTIMATE.start_main_~y2~0#1 - 1*ULTIMATE.start_main_~y1~0#1 Supporting invariants [1*ULTIMATE.start_main_~y1~0#1 - 1 >= 0] [2021-12-07 01:03:58,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-12-07 01:03:58,103 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-12-07 01:03:58,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:03:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:03:58,118 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-07 01:03:58,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:03:58,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:03:58,124 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-07 01:03:58,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:03:58,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:03:58,132 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-12-07 01:03:58,133 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:03:58,148 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 19 transitions. Complement of second has 5 states. [2021-12-07 01:03:58,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-07 01:03:58,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:03:58,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-12-07 01:03:58,150 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2021-12-07 01:03:58,150 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:03:58,150 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-07 01:03:58,150 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:03:58,150 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 4 letters. [2021-12-07 01:03:58,150 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:03:58,150 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 19 transitions. [2021-12-07 01:03:58,151 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-07 01:03:58,151 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 11 states and 15 transitions. [2021-12-07 01:03:58,151 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-12-07 01:03:58,152 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-12-07 01:03:58,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2021-12-07 01:03:58,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-07 01:03:58,152 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2021-12-07 01:03:58,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2021-12-07 01:03:58,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-12-07 01:03:58,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:03:58,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 14 transitions. [2021-12-07 01:03:58,153 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2021-12-07 01:03:58,153 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2021-12-07 01:03:58,153 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-07 01:03:58,153 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 14 transitions. [2021-12-07 01:03:58,153 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-07 01:03:58,153 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:03:58,153 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:03:58,155 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2021-12-07 01:03:58,155 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-07 01:03:58,155 INFO L791 eck$LassoCheckResult]: Stem: 419#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 420#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 417#L18 assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 418#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 421#L20 assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 426#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 424#L20 [2021-12-07 01:03:58,155 INFO L793 eck$LassoCheckResult]: Loop: 424#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 425#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 424#L20 [2021-12-07 01:03:58,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:03:58,156 INFO L85 PathProgramCache]: Analyzing trace with hash 889513673, now seen corresponding path program 2 times [2021-12-07 01:03:58,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:03:58,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210716022] [2021-12-07 01:03:58,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:03:58,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:03:58,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:58,160 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:03:58,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:58,164 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:03:58,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:03:58,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1564, now seen corresponding path program 2 times [2021-12-07 01:03:58,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:03:58,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768800568] [2021-12-07 01:03:58,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:03:58,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:03:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:58,168 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:03:58,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:58,171 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:03:58,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:03:58,172 INFO L85 PathProgramCache]: Analyzing trace with hash 124148452, now seen corresponding path program 3 times [2021-12-07 01:03:58,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:03:58,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969773587] [2021-12-07 01:03:58,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:03:58,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:03:58,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:58,177 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:03:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:03:58,182 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:03:58,213 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 01:03:58,214 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 01:03:58,214 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 01:03:58,214 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 01:03:58,214 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-07 01:03:58,214 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:58,214 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 01:03:58,214 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 01:03:58,214 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration5_Lasso [2021-12-07 01:03:58,214 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 01:03:58,214 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 01:03:58,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:58,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:58,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:58,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:58,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:58,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:58,275 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 01:03:58,275 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-07 01:03:58,276 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:58,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:58,276 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:58,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-12-07 01:03:58,278 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-07 01:03:58,278 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:03:58,288 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-07 01:03:58,288 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-07 01:03:58,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-12-07 01:03:58,315 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:58,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:58,315 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:58,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-12-07 01:03:58,316 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-07 01:03:58,316 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:03:58,332 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-07 01:03:58,332 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-07 01:03:58,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-12-07 01:03:58,363 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:58,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:58,364 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:58,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-12-07 01:03:58,369 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-07 01:03:58,369 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:03:58,377 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-07 01:03:58,377 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-07 01:03:58,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-12-07 01:03:58,409 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:58,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:58,409 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:58,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-12-07 01:03:58,411 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-07 01:03:58,411 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:03:58,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-12-07 01:03:58,443 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:58,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:58,444 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:58,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-12-07 01:03:58,445 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-07 01:03:58,445 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:03:58,676 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-07 01:03:58,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-12-07 01:03:58,679 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 01:03:58,679 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 01:03:58,679 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 01:03:58,679 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 01:03:58,680 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-07 01:03:58,680 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:58,680 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 01:03:58,680 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 01:03:58,680 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration5_Lasso [2021-12-07 01:03:58,680 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 01:03:58,680 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 01:03:58,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:58,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:58,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:58,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:58,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:58,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:03:58,743 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 01:03:58,743 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-07 01:03:58,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:58,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:58,744 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:58,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-12-07 01:03:58,746 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:03:58,752 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:03:58,753 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:03:58,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:03:58,753 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:03:58,753 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:03:58,753 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:03:58,753 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:03:58,754 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:03:58,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-12-07 01:03:58,772 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:58,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:58,773 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:58,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-12-07 01:03:58,774 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:03:58,781 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:03:58,781 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:03:58,781 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:03:58,781 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:03:58,782 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:03:58,782 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:03:58,785 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:03:58,803 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-12-07 01:03:58,803 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:58,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:58,804 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:58,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-12-07 01:03:58,806 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:03:58,812 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:03:58,813 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:03:58,813 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:03:58,813 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:03:58,814 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:03:58,814 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:03:58,817 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:03:58,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-12-07 01:03:58,836 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:58,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:58,837 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:58,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-12-07 01:03:58,838 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:03:58,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:03:58,847 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-12-07 01:03:58,847 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-07 01:03:58,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:03:58,851 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2021-12-07 01:03:58,851 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-07 01:03:58,872 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-07 01:03:58,891 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-12-07 01:03:58,891 INFO L444 ModelExtractionUtils]: 5 out of 16 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-12-07 01:03:58,892 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:03:58,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:03:58,893 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:03:58,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-12-07 01:03:58,894 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-07 01:03:58,904 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 4. [2021-12-07 01:03:58,905 INFO L513 LassoAnalysis]: Proved termination. [2021-12-07 01:03:58,905 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y2~0#1) = 2*ULTIMATE.start_main_~y2~0#1 + 1 Supporting invariants [1*ULTIMATE.start_main_~y1~0#1 - 1 >= 0, 1*ULTIMATE.start_main_~y2~0#1 >= 0] [2021-12-07 01:03:58,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-12-07 01:03:58,926 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2021-12-07 01:03:58,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:03:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:03:58,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-07 01:03:58,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:03:58,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:03:58,969 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-07 01:03:58,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:03:58,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:03:58,988 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-12-07 01:03:58,988 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2021-12-07 01:03:59,005 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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 21 states and 29 transitions. Complement of second has 5 states. [2021-12-07 01:03:59,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-07 01:03:59,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2021-12-07 01:03:59,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-12-07 01:03:59,006 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-07 01:03:59,007 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:03:59,007 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 8 letters. Loop has 2 letters. [2021-12-07 01:03:59,007 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:03:59,007 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2021-12-07 01:03:59,007 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:03:59,007 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 29 transitions. [2021-12-07 01:03:59,008 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-07 01:03:59,008 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2021-12-07 01:03:59,008 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-07 01:03:59,008 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-07 01:03:59,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-07 01:03:59,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:03:59,009 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-07 01:03:59,009 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-07 01:03:59,009 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-07 01:03:59,009 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-07 01:03:59,009 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-07 01:03:59,009 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-07 01:03:59,009 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-07 01:03:59,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 01:03:59 BoogieIcfgContainer [2021-12-07 01:03:59,016 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-07 01:03:59,016 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 01:03:59,016 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 01:03:59,016 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 01:03:59,017 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:03:54" (3/4) ... [2021-12-07 01:03:59,019 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-07 01:03:59,019 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 01:03:59,020 INFO L158 Benchmark]: Toolchain (without parser) took 4504.41ms. Allocated memory was 113.2MB in the beginning and 190.8MB in the end (delta: 77.6MB). Free memory was 83.4MB in the beginning and 80.4MB in the end (delta: 3.0MB). Peak memory consumption was 80.1MB. Max. memory is 16.1GB. [2021-12-07 01:03:59,020 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory was 67.4MB in the beginning and 67.3MB in the end (delta: 77.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:03:59,021 INFO L158 Benchmark]: CACSL2BoogieTranslator took 156.30ms. Allocated memory was 113.2MB in the beginning and 190.8MB in the end (delta: 77.6MB). Free memory was 83.1MB in the beginning and 166.0MB in the end (delta: -82.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-07 01:03:59,021 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.57ms. Allocated memory is still 190.8MB. Free memory was 166.0MB in the beginning and 164.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:03:59,022 INFO L158 Benchmark]: Boogie Preprocessor took 17.53ms. Allocated memory is still 190.8MB. Free memory was 164.7MB in the beginning and 163.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 01:03:59,022 INFO L158 Benchmark]: RCFGBuilder took 219.84ms. Allocated memory is still 190.8MB. Free memory was 163.2MB in the beginning and 154.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-07 01:03:59,022 INFO L158 Benchmark]: BuchiAutomizer took 4072.41ms. Allocated memory is still 190.8MB. Free memory was 154.8MB in the beginning and 80.4MB in the end (delta: 74.5MB). Peak memory consumption was 76.9MB. Max. memory is 16.1GB. [2021-12-07 01:03:59,022 INFO L158 Benchmark]: Witness Printer took 3.26ms. Allocated memory is still 190.8MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:03:59,024 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory was 67.4MB in the beginning and 67.3MB in the end (delta: 77.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 156.30ms. Allocated memory was 113.2MB in the beginning and 190.8MB in the end (delta: 77.6MB). Free memory was 83.1MB in the beginning and 166.0MB in the end (delta: -82.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.57ms. Allocated memory is still 190.8MB. Free memory was 166.0MB in the beginning and 164.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.53ms. Allocated memory is still 190.8MB. Free memory was 164.7MB in the beginning and 163.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 219.84ms. Allocated memory is still 190.8MB. Free memory was 163.2MB in the beginning and 154.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4072.41ms. Allocated memory is still 190.8MB. Free memory was 154.8MB in the beginning and 80.4MB in the end (delta: 74.5MB). Peak memory consumption was 76.9MB. Max. memory is 16.1GB. * Witness Printer took 3.26ms. Allocated memory is still 190.8MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (0 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function y1 + -1 * y2 and consists of 4 locations. One deterministic module has affine ranking function y1 + -1 * y2 and consists of 4 locations. One deterministic module has affine ranking function y2 + -1 * y1 and consists of 3 locations. One deterministic module has affine ranking function 2 * y2 + 1 and consists of 4 locations. One nondeterministic module has affine ranking function y1 + -1 * y2 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.0s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 3.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 13 states and ocurred in iteration 2. Nontrivial modules had stage [4, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 64 IncrementalHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 32 mSDtfsCounter, 64 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso5 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax158 hnf97 lsp62 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq149 hnf96 smp85 dnf112 smp97 tf100 neg95 sie127 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 68ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 2 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 20 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-07 01:03:59,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-12-07 01:03:59,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-12-07 01:03:59,452 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623529c4-77a7-4341-8598-a45978b3d597/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE