./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_23.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_23.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer --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 cee692bfa384f30ecd519bc2dc9dfe35c80a4941 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:57:46,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:57:46,427 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:57:46,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:57:46,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:57:46,516 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:57:46,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:57:46,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:57:46,524 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:57:46,526 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:57:46,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:57:46,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:57:46,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:57:46,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:57:46,561 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:57:46,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:57:46,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:57:46,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:57:46,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:57:46,589 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:57:46,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:57:46,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:57:46,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:57:46,599 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:57:46,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:57:46,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:57:46,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:57:46,615 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:57:46,616 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:57:46,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:57:46,618 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:57:46,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:57:46,623 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:57:46,624 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:57:46,626 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:57:46,627 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:57:46,628 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:57:46,628 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:57:46,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:57:46,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:57:46,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:57:46,635 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 20:57:46,686 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:57:46,687 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:57:46,690 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:57:46,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:57:46,690 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:57:46,691 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 20:57:46,691 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 20:57:46,692 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 20:57:46,692 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 20:57:46,692 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 20:57:46,694 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 20:57:46,694 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:57:46,695 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:57:46,695 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:57:46,695 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:57:46,696 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 20:57:46,696 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 20:57:46,697 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 20:57:46,697 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:57:46,697 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 20:57:46,698 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:57:46,698 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 20:57:46,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:57:46,699 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:57:46,699 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 20:57:46,700 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:57:46,700 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:57:46,701 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:57:46,701 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 20:57:46,702 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 20:57:46,703 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-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cee692bfa384f30ecd519bc2dc9dfe35c80a4941 [2020-11-29 20:57:47,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:57:47,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:57:47,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:57:47,120 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:57:47,121 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:57:47,122 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/NO_23.c [2020-11-29 20:57:47,225 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/data/2db1b1353/3bb5ecc6f11f45c2bf051fcc3fb2c86f/FLAGd9b76c169 [2020-11-29 20:57:47,854 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:57:47,854 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/sv-benchmarks/c/termination-restricted-15/NO_23.c [2020-11-29 20:57:47,866 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/data/2db1b1353/3bb5ecc6f11f45c2bf051fcc3fb2c86f/FLAGd9b76c169 [2020-11-29 20:57:48,235 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/data/2db1b1353/3bb5ecc6f11f45c2bf051fcc3fb2c86f [2020-11-29 20:57:48,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:57:48,243 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:57:48,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:57:48,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:57:48,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:57:48,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:57:48" (1/1) ... [2020-11-29 20:57:48,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60c691cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:48, skipping insertion in model container [2020-11-29 20:57:48,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:57:48" (1/1) ... [2020-11-29 20:57:48,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:57:48,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:57:48,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:57:48,526 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:57:48,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:57:48,593 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:57:48,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:48 WrapperNode [2020-11-29 20:57:48,595 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:57:48,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:57:48,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:57:48,598 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:57:48,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:48" (1/1) ... [2020-11-29 20:57:48,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:48" (1/1) ... [2020-11-29 20:57:48,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:57:48,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:57:48,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:57:48,644 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:57:48,654 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:48" (1/1) ... [2020-11-29 20:57:48,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:48" (1/1) ... [2020-11-29 20:57:48,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:48" (1/1) ... [2020-11-29 20:57:48,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:48" (1/1) ... [2020-11-29 20:57:48,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:48" (1/1) ... [2020-11-29 20:57:48,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:48" (1/1) ... [2020-11-29 20:57:48,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:48" (1/1) ... [2020-11-29 20:57:48,671 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:57:48,672 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:57:48,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:57:48,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:57:48,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:48,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:57:48,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:57:48,941 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:57:48,941 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-29 20:57:48,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:57:48 BoogieIcfgContainer [2020-11-29 20:57:48,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:57:48,945 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 20:57:48,945 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 20:57:48,951 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 20:57:48,952 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:57:48,952 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 08:57:48" (1/3) ... [2020-11-29 20:57:48,954 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5bf57539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:57:48, skipping insertion in model container [2020-11-29 20:57:48,954 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:57:48,955 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:48" (2/3) ... [2020-11-29 20:57:48,956 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5bf57539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:57:48, skipping insertion in model container [2020-11-29 20:57:48,956 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:57:48,956 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:57:48" (3/3) ... [2020-11-29 20:57:48,959 INFO L373 chiAutomizerObserver]: Analyzing ICFG NO_23.c [2020-11-29 20:57:49,039 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 20:57:49,039 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 20:57:49,040 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 20:57:49,040 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:57:49,040 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:57:49,040 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 20:57:49,040 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:57:49,041 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 20:57:49,056 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-11-29 20:57:49,080 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 20:57:49,080 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:57:49,080 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:57:49,087 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-11-29 20:57:49,087 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 20:57:49,088 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 20:57:49,088 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-11-29 20:57:49,089 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 20:57:49,089 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:57:49,089 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:57:49,090 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-11-29 20:57:49,090 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 20:57:49,098 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 7#L10-2true [2020-11-29 20:57:49,099 INFO L796 eck$LassoCheckResult]: Loop: 7#L10-2true assume !!(main_~i~0 < 100); 3#L10true assume main_~i~0 < 50;main_~i~0 := 51; 7#L10-2true [2020-11-29 20:57:49,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:49,109 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-11-29 20:57:49,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:49,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297193659] [2020-11-29 20:57:49,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:49,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:49,225 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:49,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:49,243 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:49,265 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:57:49,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:49,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2020-11-29 20:57:49,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:49,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349690101] [2020-11-29 20:57:49,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:49,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:49,293 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:49,303 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:49,306 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:57:49,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:49,322 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2020-11-29 20:57:49,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:49,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627343659] [2020-11-29 20:57:49,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:49,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:49,332 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:49,342 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:49,346 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:57:49,533 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 7 [2020-11-29 20:57:49,617 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:57:49,618 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:57:49,619 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:57:49,619 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:57:49,620 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 20:57:49,620 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:49,620 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:57:49,621 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:57:49,621 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration1_Loop [2020-11-29 20:57:49,621 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:57:49,622 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:57:49,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:57:49,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:57:49,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:57:49,805 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:57:49,806 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:49,817 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 20:57:49,817 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 20:57:49,830 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 20:57:49,831 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: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:49,873 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 20:57:49,873 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 20:57:49,879 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 20:57:49,879 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:49,921 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 20:57:49,921 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:49,969 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 20:57:49,969 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 20:57:50,014 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 20:57:50,016 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:57:50,016 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:57:50,016 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:57:50,016 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:57:50,016 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 20:57:50,017 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:50,017 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:57:50,017 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:57:50,017 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration1_Loop [2020-11-29 20:57:50,017 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:57:50,017 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:57:50,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:57:50,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:57:50,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:57:50,217 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:57:50,229 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:50,252 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:50,255 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:57:50,256 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:50,256 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:50,256 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:57:50,265 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:57:50,265 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:50,273 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:50,362 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:50,364 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:57:50,364 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:57:50,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:50,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:50,365 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:57:50,367 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:57:50,367 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:57:50,371 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 20:57:50,387 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 20:57:50,387 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:50,397 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 20:57:50,397 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 20:57:50,398 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 20:57:50,398 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:50,435 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 20:57:50,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:50,527 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:57:50,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:57:50,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:50,549 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 20:57:50,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:57:50,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:57:50,574 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 [2020-11-29 20:57:50,576 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2020-11-29 20:57:50,644 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 23 states and 30 transitions. Complement of second has 6 states. [2020-11-29 20:57:50,645 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 [2020-11-29 20:57:50,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 20:57:50,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2020-11-29 20:57:50,649 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2020-11-29 20:57:50,650 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:57:50,651 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2020-11-29 20:57:50,651 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:57:50,651 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2020-11-29 20:57:50,651 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:57:50,652 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2020-11-29 20:57:50,664 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 20:57:50,669 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2020-11-29 20:57:50,671 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-11-29 20:57:50,671 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-11-29 20:57:50,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-11-29 20:57:50,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 20:57:50,672 INFO L691 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-11-29 20:57:50,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-11-29 20:57:50,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-11-29 20:57:50,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-11-29 20:57:50,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-11-29 20:57:50,705 INFO L714 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-11-29 20:57:50,705 INFO L594 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-11-29 20:57:50,705 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 20:57:50,706 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2020-11-29 20:57:50,707 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 20:57:50,707 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:57:50,707 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:57:50,708 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-29 20:57:50,708 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 20:57:50,708 INFO L794 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 68#L10-2 assume !!(main_~i~0 < 100); 63#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 64#L10-2 [2020-11-29 20:57:50,709 INFO L796 eck$LassoCheckResult]: Loop: 64#L10-2 assume !!(main_~i~0 < 100); 69#L10 assume main_~i~0 < 50;main_~i~0 := 51; 64#L10-2 [2020-11-29 20:57:50,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:50,710 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2020-11-29 20:57:50,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:50,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766271966] [2020-11-29 20:57:50,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:50,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:50,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:57:50,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766271966] [2020-11-29 20:57:50,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:57:50,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-29 20:57:50,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491430678] [2020-11-29 20:57:50,756 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 20:57:50,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:50,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2020-11-29 20:57:50,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:50,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537151585] [2020-11-29 20:57:50,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:50,763 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:50,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:50,766 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:50,771 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:57:50,804 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:57:50,804 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:57:50,804 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:57:50,805 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:57:50,805 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 20:57:50,805 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:50,805 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:57:50,805 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:57:50,805 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration2_Loop [2020-11-29 20:57:50,805 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:57:50,806 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:57:50,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:57:50,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:57:50,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:57:50,927 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:57:50,928 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:50,932 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 20:57:50,932 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 20:57:50,937 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 20:57:50,937 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: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:50,972 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 20:57:50,972 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:51,006 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 20:57:51,007 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 20:57:51,070 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 20:57:51,073 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:57:51,073 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:57:51,073 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:57:51,073 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:57:51,073 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 20:57:51,073 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:51,074 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:57:51,074 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:57:51,074 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration2_Loop [2020-11-29 20:57:51,074 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:57:51,074 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:57:51,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:57:51,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:57:51,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:57:51,232 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:57:51,232 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:51,267 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:51,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:57:51,269 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:57:51,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:51,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:51,270 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:57:51,273 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:57:51,274 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:57:51,277 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 20:57:51,281 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 20:57:51,281 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:51,286 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 20:57:51,286 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 20:57:51,286 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 20:57:51,286 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:51,334 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 20:57:51,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:51,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:51,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:57:51,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:57:51,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:51,375 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 20:57:51,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:57:51,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:57:51,377 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 [2020-11-29 20:57:51,377 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-11-29 20:57:51,398 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 11 states and 16 transitions. Complement of second has 5 states. [2020-11-29 20:57:51,398 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 [2020-11-29 20:57:51,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 20:57:51,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2020-11-29 20:57:51,400 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2020-11-29 20:57:51,400 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:57:51,400 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2020-11-29 20:57:51,400 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:57:51,400 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2020-11-29 20:57:51,401 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:57:51,401 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2020-11-29 20:57:51,402 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 20:57:51,403 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2020-11-29 20:57:51,403 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-11-29 20:57:51,403 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-11-29 20:57:51,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2020-11-29 20:57:51,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 20:57:51,404 INFO L691 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2020-11-29 20:57:51,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2020-11-29 20:57:51,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-11-29 20:57:51,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-29 20:57:51,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2020-11-29 20:57:51,406 INFO L714 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2020-11-29 20:57:51,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:57:51,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:57:51,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:57:51,411 INFO L87 Difference]: Start difference. First operand 11 states and 16 transitions. Second operand 3 states. [2020-11-29 20:57:51,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:57:51,426 INFO L93 Difference]: Finished difference Result 13 states and 17 transitions. [2020-11-29 20:57:51,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:57:51,427 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 17 transitions. [2020-11-29 20:57:51,428 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 20:57:51,428 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 12 states and 16 transitions. [2020-11-29 20:57:51,429 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-11-29 20:57:51,429 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-11-29 20:57:51,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2020-11-29 20:57:51,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 20:57:51,429 INFO L691 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2020-11-29 20:57:51,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2020-11-29 20:57:51,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2020-11-29 20:57:51,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-29 20:57:51,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2020-11-29 20:57:51,431 INFO L714 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2020-11-29 20:57:51,432 INFO L594 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2020-11-29 20:57:51,432 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 20:57:51,432 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 15 transitions. [2020-11-29 20:57:51,432 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 20:57:51,433 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:57:51,433 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:57:51,433 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1] [2020-11-29 20:57:51,433 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 20:57:51,434 INFO L794 eck$LassoCheckResult]: Stem: 143#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 144#L10-2 assume !!(main_~i~0 < 100); 145#L10 assume main_~i~0 < 50;main_~i~0 := 51; 149#L10-2 assume !!(main_~i~0 < 100); 139#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 140#L10-2 assume !!(main_~i~0 < 100); 146#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 148#L10-2 [2020-11-29 20:57:51,434 INFO L796 eck$LassoCheckResult]: Loop: 148#L10-2 assume !!(main_~i~0 < 100); 147#L10 assume main_~i~0 < 50;main_~i~0 := 51; 148#L10-2 [2020-11-29 20:57:51,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:51,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1366043347, now seen corresponding path program 1 times [2020-11-29 20:57:51,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:51,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490721591] [2020-11-29 20:57:51,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:51,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:51,549 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 20:57:51,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490721591] [2020-11-29 20:57:51,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:57:51,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:57:51,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057015332] [2020-11-29 20:57:51,550 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 20:57:51,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:51,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2020-11-29 20:57:51,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:51,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663931440] [2020-11-29 20:57:51,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:51,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:51,556 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:51,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:51,559 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:51,560 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:57:51,592 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:57:51,592 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:57:51,592 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:57:51,592 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:57:51,593 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 20:57:51,593 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:51,593 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:57:51,593 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:57:51,593 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration3_Loop [2020-11-29 20:57:51,593 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:57:51,593 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:57:51,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:57:51,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:57:51,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:57:51,689 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:57:51,689 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:51,696 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 20:57:51,697 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:51,702 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 20:57:51,702 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: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:51,740 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 20:57:51,740 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:51,774 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 20:57:51,774 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 20:57:51,813 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 20:57:51,815 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:57:51,815 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:57:51,815 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:57:51,815 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:57:51,815 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 20:57:51,815 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:51,815 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:57:51,816 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:57:51,816 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration3_Loop [2020-11-29 20:57:51,816 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:57:51,816 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:57:51,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:57:51,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:57:51,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:57:51,924 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:57:51,924 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:51,937 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:51,939 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:57:51,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:51,940 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:51,940 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:57:51,944 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:57:51,945 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:51,951 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:51,998 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:51,999 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:57:51,999 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:57:52,000 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:52,000 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:52,000 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:57:52,001 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:57:52,002 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:57:52,004 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 20:57:52,008 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 20:57:52,008 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:52,013 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 20:57:52,013 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 20:57:52,014 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 20:57:52,014 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] [2020-11-29 20:57:52,040 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 20:57:52,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:52,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:57:52,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:57:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:52,098 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 20:57:52,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:57:52,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:57:52,100 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 [2020-11-29 20:57:52,100 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-11-29 20:57:52,119 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 13 states and 19 transitions. Complement of second has 5 states. [2020-11-29 20:57:52,121 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 [2020-11-29 20:57:52,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 20:57:52,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2020-11-29 20:57:52,122 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 2 letters. [2020-11-29 20:57:52,122 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:57:52,122 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 20:57:52,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:52,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:52,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:57:52,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:57:52,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:52,169 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 20:57:52,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:57:52,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:57:52,171 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2020-11-29 20:57:52,171 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-11-29 20:57:52,187 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 13 states and 19 transitions. Complement of second has 5 states. [2020-11-29 20:57:52,188 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 [2020-11-29 20:57:52,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 20:57:52,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2020-11-29 20:57:52,188 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 2 letters. [2020-11-29 20:57:52,188 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:57:52,189 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 20:57:52,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:52,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:52,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:57:52,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:57:52,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:52,229 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 20:57:52,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:57:52,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:57:52,231 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-11-29 20:57:52,231 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-11-29 20:57:52,252 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 15 states and 22 transitions. Complement of second has 4 states. [2020-11-29 20:57:52,253 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 [2020-11-29 20:57:52,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 20:57:52,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-11-29 20:57:52,254 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2020-11-29 20:57:52,255 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:57:52,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 9 letters. Loop has 2 letters. [2020-11-29 20:57:52,255 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:57:52,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 4 letters. [2020-11-29 20:57:52,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:57:52,256 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 22 transitions. [2020-11-29 20:57:52,257 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-29 20:57:52,258 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 18 transitions. [2020-11-29 20:57:52,258 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-11-29 20:57:52,258 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-11-29 20:57:52,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2020-11-29 20:57:52,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 20:57:52,258 INFO L691 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2020-11-29 20:57:52,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2020-11-29 20:57:52,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 6. [2020-11-29 20:57:52,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-29 20:57:52,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2020-11-29 20:57:52,260 INFO L714 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-11-29 20:57:52,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:57:52,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:57:52,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:57:52,261 INFO L87 Difference]: Start difference. First operand 6 states and 8 transitions. Second operand 3 states. [2020-11-29 20:57:52,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:57:52,279 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2020-11-29 20:57:52,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:57:52,281 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2020-11-29 20:57:52,281 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-29 20:57:52,282 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 7 states and 8 transitions. [2020-11-29 20:57:52,282 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-11-29 20:57:52,282 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-11-29 20:57:52,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2020-11-29 20:57:52,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 20:57:52,282 INFO L691 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2020-11-29 20:57:52,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2020-11-29 20:57:52,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 5. [2020-11-29 20:57:52,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-29 20:57:52,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2020-11-29 20:57:52,284 INFO L714 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2020-11-29 20:57:52,284 INFO L594 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2020-11-29 20:57:52,284 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 20:57:52,284 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2020-11-29 20:57:52,285 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-29 20:57:52,285 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:57:52,285 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:57:52,285 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-11-29 20:57:52,285 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2020-11-29 20:57:52,288 INFO L794 eck$LassoCheckResult]: Stem: 318#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 315#L10-2 [2020-11-29 20:57:52,288 INFO L796 eck$LassoCheckResult]: Loop: 315#L10-2 assume !!(main_~i~0 < 100); 316#L10 assume main_~i~0 < 50;main_~i~0 := 51; 317#L10-2 assume !!(main_~i~0 < 100); 314#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 315#L10-2 [2020-11-29 20:57:52,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:52,289 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2020-11-29 20:57:52,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:52,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618047163] [2020-11-29 20:57:52,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:52,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:52,296 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:52,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:52,298 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:52,299 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:57:52,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:52,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1234249, now seen corresponding path program 1 times [2020-11-29 20:57:52,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:52,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774589820] [2020-11-29 20:57:52,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:52,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:52,319 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:52,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:52,326 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:52,330 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:57:52,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:52,331 INFO L82 PathProgramCache]: Analyzing trace with hash 29863400, now seen corresponding path program 2 times [2020-11-29 20:57:52,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:52,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051874258] [2020-11-29 20:57:52,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:52,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:52,343 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:52,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:52,347 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:52,348 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:57:52,453 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 10 [2020-11-29 20:57:52,494 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:57:52,494 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:57:52,494 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:57:52,494 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:57:52,494 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 20:57:52,495 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:52,495 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:57:52,495 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:57:52,495 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration4_Lasso [2020-11-29 20:57:52,495 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:57:52,495 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:57:52,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:57:52,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:57:52,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:57:52,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:57:52,632 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:57:52,633 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:52,643 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 20:57:52,644 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:52,705 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 20:57:52,705 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:52,742 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 20:57:52,744 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:57:52,744 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:57:52,744 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:57:52,744 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:57:52,744 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 20:57:52,744 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:52,744 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:57:52,745 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:57:52,745 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration4_Lasso [2020-11-29 20:57:52,745 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:57:52,745 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:57:52,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:57:52,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:57:52,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:57:52,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:57:52,864 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:57:52,864 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:52,883 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:52,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:57:52,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:52,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:52,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:57:52,892 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:57:52,892 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:52,907 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:52,961 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:52,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:57:52,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:52,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:52,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:52,969 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:57:52,969 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:57:52,975 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:53,024 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:53,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:57:53,026 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:57:53,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:53,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:53,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:57:53,027 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:57:53,027 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:53,031 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:53,080 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:53,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:57:53,082 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:53,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:53,083 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:57:53,086 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:57:53,086 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:53,092 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 20:57:53,135 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:53,139 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:53,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:57:53,143 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:53,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:53,143 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:53,150 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-11-29 20:57:53,150 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-11-29 20:57:53,160 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:53,209 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:53,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:57:53,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:53,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:53,212 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 20:57:53,217 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-11-29 20:57:53,217 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:53,224 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:53,276 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:53,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:57:53,278 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:57:53,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:53,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:53,279 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 20:57:53,280 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-29 20:57:53,280 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:53,283 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:53,332 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:53,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:57:53,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:53,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:53,335 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 20:57:53,340 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-11-29 20:57:53,341 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:53,347 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 20:57:53,392 INFO L489 LassoAnalysis]: Using template '3-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:53,396 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:53,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:57:53,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:53,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:53,399 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:53,408 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-11-29 20:57:53,408 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-29 20:57:53,421 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:53,462 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:53,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:57:53,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:53,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:53,465 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 20:57:53,471 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-11-29 20:57:53,472 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-29 20:57:53,483 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:53,536 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:53,538 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:57:53,538 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:57:53,539 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:53,539 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:53,539 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 20:57:53,540 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 20:57:53,540 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:53,543 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:53,592 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:53,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:57:53,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:53,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:53,595 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 20:57:53,601 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-11-29 20:57:53,601 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:53,612 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 20:57:53,642 INFO L489 LassoAnalysis]: Using template '4-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:53,645 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:53,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:57:53,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:53,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:53,648 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 20:57:53,663 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2020-11-29 20:57:53,663 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2020-11-29 20:57:53,677 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:53,725 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:53,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:57:53,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:53,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:53,729 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 20:57:53,736 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2020-11-29 20:57:53,736 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:53,747 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:53,800 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:53,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:57:53,803 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:57:53,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:53,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:53,804 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 20:57:53,805 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-29 20:57:53,805 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:53,808 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:53,859 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:53,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:57:53,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:53,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:53,862 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 20:57:53,869 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2020-11-29 20:57:53,869 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2020-11-29 20:57:53,889 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 20:57:53,933 INFO L489 LassoAnalysis]: Using template '2-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:53,936 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:53,939 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 20:57:53,939 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 20:57:53,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:53,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:53,939 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 20:57:53,945 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-11-29 20:57:53,946 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-11-29 20:57:53,963 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:54,016 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:54,018 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 20:57:54,019 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 20:57:54,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:54,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:54,019 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 20:57:54,024 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-11-29 20:57:54,024 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:54,033 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:54,075 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:54,077 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 20:57:54,077 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 20:57:54,077 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:57:54,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:54,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:54,077 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 20:57:54,078 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-29 20:57:54,078 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:57:54,081 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:54,110 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:54,111 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 20:57:54,112 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 20:57:54,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:54,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:54,112 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 20:57:54,116 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-11-29 20:57:54,116 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-11-29 20:57:54,135 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 20:57:54,180 INFO L489 LassoAnalysis]: Using template '3-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:54,183 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:54,186 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 20:57:54,187 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-11-29 20:57:54,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:54,187 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:54,187 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 20:57:54,195 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-11-29 20:57:54,195 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:54,211 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:54,256 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:54,259 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 20:57:54,259 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-11-29 20:57:54,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:54,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:54,260 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 20:57:54,265 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-11-29 20:57:54,265 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-29 20:57:54,279 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:54,333 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:54,337 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 20:57:54,337 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-11-29 20:57:54,337 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:57:54,338 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:54,338 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:54,338 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 20:57:54,339 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 20:57:54,339 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:57:54,342 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:54,370 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:54,372 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 20:57:54,372 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-11-29 20:57:54,373 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:54,373 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:54,373 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 20:57:54,380 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-11-29 20:57:54,380 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-29 20:57:54,395 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 20:57:54,439 INFO L489 LassoAnalysis]: Using template '4-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:54,443 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:54,446 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 20:57:54,447 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 20:57:54,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:54,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:54,447 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 20:57:54,457 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2020-11-29 20:57:54,457 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:54,487 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:54,536 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:54,540 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 20:57:54,540 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 20:57:54,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:54,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:54,541 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 20:57:54,551 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2020-11-29 20:57:54,551 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:54,575 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:54,626 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:54,630 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 20:57:54,630 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 20:57:54,631 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:57:54,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:54,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:54,631 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 20:57:54,633 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-29 20:57:54,633 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:54,639 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:54,688 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:54,692 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 20:57:54,692 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 20:57:54,692 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:54,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:54,693 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:54,700 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2020-11-29 20:57:54,700 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2020-11-29 20:57:54,714 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 20:57:54,757 INFO L489 LassoAnalysis]: Using template '2-lex'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:54,764 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:54,771 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 20:57:54,771 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 20:57:54,771 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:54,771 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:54,771 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 20:57:54,777 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-11-29 20:57:54,778 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-29 20:57:54,788 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:54,816 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:54,818 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 20:57:54,818 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 20:57:54,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:54,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:54,818 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 20:57:54,824 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-11-29 20:57:54,824 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-29 20:57:54,833 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:54,863 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:54,864 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 20:57:54,864 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 20:57:54,865 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:57:54,865 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:54,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:54,865 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 20:57:54,867 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 20:57:54,867 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:57:54,891 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:54,940 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:54,942 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 20:57:54,943 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 20:57:54,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:54,943 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:54,943 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 20:57:54,947 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-11-29 20:57:54,948 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:54,956 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 20:57:54,999 INFO L489 LassoAnalysis]: Using template '3-lex'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:57:55,003 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:55,006 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 20:57:55,006 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 20:57:55,007 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:55,007 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:55,007 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:55,016 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2020-11-29 20:57:55,017 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2020-11-29 20:57:55,046 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:55,079 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:55,081 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 20:57:55,081 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 20:57:55,081 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:55,081 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:55,082 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-11-29 20:57:55,087 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2020-11-29 20:57:55,087 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2020-11-29 20:57:55,100 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:55,131 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:55,133 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 20:57:55,133 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 20:57:55,133 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:57:55,133 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:55,133 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:55,134 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-11-29 20:57:55,135 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:57:55,135 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:57:55,139 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:55,167 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:57:55,170 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 20:57:55,170 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 20:57:55,170 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:55,171 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:55,171 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-11-29 20:57:55,177 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2020-11-29 20:57:55,177 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2020-11-29 20:57:55,189 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 20:57:55,229 INFO L473 BuchiCegarLoop]: Result of lasso check was UNKNOWN. I will concatenate loop to stem and try again. [2020-11-29 20:57:55,230 INFO L794 eck$LassoCheckResult]: Stem: 318#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 315#L10-2 assume !!(main_~i~0 < 100); 316#L10 assume main_~i~0 < 50;main_~i~0 := 51; 317#L10-2 assume !!(main_~i~0 < 100); 314#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 315#L10-2 [2020-11-29 20:57:55,230 INFO L796 eck$LassoCheckResult]: Loop: 315#L10-2 assume !!(main_~i~0 < 100); 316#L10 assume main_~i~0 < 50;main_~i~0 := 51; 317#L10-2 assume !!(main_~i~0 < 100); 314#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 315#L10-2 [2020-11-29 20:57:55,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:55,230 INFO L82 PathProgramCache]: Analyzing trace with hash 29863400, now seen corresponding path program 3 times [2020-11-29 20:57:55,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:55,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727032902] [2020-11-29 20:57:55,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:55,237 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:55,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:55,240 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:55,241 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:57:55,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:55,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1234249, now seen corresponding path program 2 times [2020-11-29 20:57:55,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:55,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725786528] [2020-11-29 20:57:55,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:55,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:55,247 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:55,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:55,250 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:55,251 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:57:55,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:55,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1492334512, now seen corresponding path program 4 times [2020-11-29 20:57:55,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:55,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217641679] [2020-11-29 20:57:55,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:55,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:55,259 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:55,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:55,264 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:55,265 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:57:55,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 08:57:55 BoogieIcfgContainer [2020-11-29 20:57:55,413 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 20:57:55,413 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:57:55,414 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:57:55,414 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:57:55,414 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:57:48" (3/4) ... [2020-11-29 20:57:55,435 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 20:57:55,489 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ec0320f9-bdc7-483f-b45b-12137dc4d3d6/bin/uautomizer/witness.graphml [2020-11-29 20:57:55,489 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:57:55,491 INFO L168 Benchmark]: Toolchain (without parser) took 7247.77 ms. Allocated memory was 107.0 MB in the beginning and 136.3 MB in the end (delta: 29.4 MB). Free memory was 78.3 MB in the beginning and 110.1 MB in the end (delta: -31.8 MB). Peak memory consumption was 73.3 MB. Max. memory is 16.1 GB. [2020-11-29 20:57:55,499 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 75.5 MB. Free memory was 33.4 MB in the beginning and 33.4 MB in the end (delta: 31.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:57:55,499 INFO L168 Benchmark]: CACSL2BoogieTranslator took 347.54 ms. Allocated memory is still 107.0 MB. Free memory was 77.8 MB in the beginning and 86.6 MB in the end (delta: -8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:57:55,500 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.13 ms. Allocated memory is still 107.0 MB. Free memory was 86.6 MB in the beginning and 85.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:57:55,500 INFO L168 Benchmark]: Boogie Preprocessor took 27.71 ms. Allocated memory is still 107.0 MB. Free memory was 85.1 MB in the beginning and 84.6 MB in the end (delta: 566.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:57:55,501 INFO L168 Benchmark]: RCFGBuilder took 271.19 ms. Allocated memory is still 107.0 MB. Free memory was 84.2 MB in the beginning and 76.7 MB in the end (delta: 7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:57:55,502 INFO L168 Benchmark]: BuchiAutomizer took 6468.32 ms. Allocated memory was 107.0 MB in the beginning and 136.3 MB in the end (delta: 29.4 MB). Free memory was 76.2 MB in the beginning and 38.6 MB in the end (delta: 37.6 MB). Peak memory consumption was 69.7 MB. Max. memory is 16.1 GB. [2020-11-29 20:57:55,502 INFO L168 Benchmark]: Witness Printer took 76.06 ms. Allocated memory is still 136.3 MB. Free memory was 38.6 MB in the beginning and 110.1 MB in the end (delta: -71.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:57:55,506 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 75.5 MB. Free memory was 33.4 MB in the beginning and 33.4 MB in the end (delta: 31.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 347.54 ms. Allocated memory is still 107.0 MB. Free memory was 77.8 MB in the beginning and 86.6 MB in the end (delta: -8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.13 ms. Allocated memory is still 107.0 MB. Free memory was 86.6 MB in the beginning and 85.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.71 ms. Allocated memory is still 107.0 MB. Free memory was 85.1 MB in the beginning and 84.6 MB in the end (delta: 566.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 271.19 ms. Allocated memory is still 107.0 MB. Free memory was 84.2 MB in the beginning and 76.7 MB in the end (delta: 7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 6468.32 ms. Allocated memory was 107.0 MB in the beginning and 136.3 MB in the end (delta: 29.4 MB). Free memory was 76.2 MB in the beginning and 38.6 MB in the end (delta: 37.6 MB). Peak memory consumption was 69.7 MB. Max. memory is 16.1 GB. * Witness Printer took 76.06 ms. Allocated memory is still 136.3 MB. Free memory was 38.6 MB in the beginning and 110.1 MB in the end (delta: -71.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * i + 50 and consists of 4 locations. One deterministic module has affine ranking function -1 * i + 50 and consists of 3 locations. One nondeterministic module has affine ranking function -1 * i + 50 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.3s and 4 iterations. TraceHistogramMax:3. Analysis of lassos took 5.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 24 SDtfs, 22 SDslu, 3 SDs, 0 SdLazy, 39 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital8 mio100 ax250 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf91 smp100 dnf100 smp100 tf118 neg100 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 40ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 9]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {\result=0, i=49} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = 0 [L9] COND TRUE i < 100 [L10] COND TRUE i < 50 [L10] i = 51 [L9] COND TRUE i < 100 [L10] COND FALSE !(i < 50) [L11] i = 49 Loop: [L9] COND TRUE i < 100 [L10] COND TRUE i < 50 [L10] i = 51 [L9] COND TRUE i < 100 [L10] COND FALSE !(i < 50) [L11] i = 49 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...