./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 cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_21d5f107-4240-45a1-aef4-763c29d773a7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_21d5f107-4240-45a1-aef4-763c29d773a7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_21d5f107-4240-45a1-aef4-763c29d773a7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_21d5f107-4240-45a1-aef4-763c29d773a7/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_23.c -s /tmp/vcloud-vcloud-master/worker/working_dir_21d5f107-4240-45a1-aef4-763c29d773a7/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_21d5f107-4240-45a1-aef4-763c29d773a7/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 0.1.24-cad4683 [2019-10-22 08:57:05,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:57:05,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:57:05,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:57:05,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:57:05,507 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:57:05,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:57:05,510 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:57:05,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:57:05,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:57:05,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:57:05,514 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:57:05,514 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:57:05,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:57:05,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:57:05,517 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:57:05,517 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:57:05,518 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:57:05,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:57:05,521 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:57:05,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:57:05,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:57:05,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:57:05,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:57:05,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:57:05,528 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:57:05,528 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:57:05,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:57:05,529 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:57:05,530 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:57:05,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:57:05,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:57:05,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:57:05,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:57:05,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:57:05,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:57:05,534 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:57:05,535 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:57:05,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:57:05,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:57:05,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:57:05,538 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_21d5f107-4240-45a1-aef4-763c29d773a7/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-10-22 08:57:05,551 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:57:05,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:57:05,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:57:05,552 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:57:05,553 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:57:05,553 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:57:05,553 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:57:05,553 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:57:05,553 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:57:05,553 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:57:05,553 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:57:05,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:57:05,554 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:57:05,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:57:05,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:57:05,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:57:05,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:57:05,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:57:05,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:57:05,555 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:57:05,555 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:57:05,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:57:05,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:57:05,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:57:05,556 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:57:05,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:57:05,556 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:57:05,557 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:57:05,557 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:57:05,557 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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/working_dir_21d5f107-4240-45a1-aef4-763c29d773a7/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 [2019-10-22 08:57:05,583 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:57:05,596 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:57:05,601 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:57:05,603 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:57:05,603 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:57:05,604 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_21d5f107-4240-45a1-aef4-763c29d773a7/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/NO_23.c [2019-10-22 08:57:05,651 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_21d5f107-4240-45a1-aef4-763c29d773a7/bin/uautomizer/data/e04fb1b37/ae798eaa49a64c40a8d6c32c8db70fcd/FLAG1977ae181 [2019-10-22 08:57:06,023 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:57:06,024 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_21d5f107-4240-45a1-aef4-763c29d773a7/sv-benchmarks/c/termination-restricted-15/NO_23.c [2019-10-22 08:57:06,028 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_21d5f107-4240-45a1-aef4-763c29d773a7/bin/uautomizer/data/e04fb1b37/ae798eaa49a64c40a8d6c32c8db70fcd/FLAG1977ae181 [2019-10-22 08:57:06,038 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_21d5f107-4240-45a1-aef4-763c29d773a7/bin/uautomizer/data/e04fb1b37/ae798eaa49a64c40a8d6c32c8db70fcd [2019-10-22 08:57:06,040 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:57:06,042 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:57:06,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:06,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:57:06,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:57:06,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:06" (1/1) ... [2019-10-22 08:57:06,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75d94b7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:06, skipping insertion in model container [2019-10-22 08:57:06,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:06" (1/1) ... [2019-10-22 08:57:06,056 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:57:06,070 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:57:06,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:06,195 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:57:06,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:06,287 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:57:06,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:06 WrapperNode [2019-10-22 08:57:06,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:06,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:06,288 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:57:06,289 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:57:06,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:06" (1/1) ... [2019-10-22 08:57:06,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:06" (1/1) ... [2019-10-22 08:57:06,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:06,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:57:06,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:57:06,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:57:06,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:06" (1/1) ... [2019-10-22 08:57:06,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:06" (1/1) ... [2019-10-22 08:57:06,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:06" (1/1) ... [2019-10-22 08:57:06,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:06" (1/1) ... [2019-10-22 08:57:06,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:06" (1/1) ... [2019-10-22 08:57:06,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:06" (1/1) ... [2019-10-22 08:57:06,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:06" (1/1) ... [2019-10-22 08:57:06,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:57:06,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:57:06,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:57:06,341 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:57:06,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21d5f107-4240-45a1-aef4-763c29d773a7/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 [2019-10-22 08:57:06,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:57:06,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:57:06,539 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:57:06,539 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-22 08:57:06,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:06 BoogieIcfgContainer [2019-10-22 08:57:06,541 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:57:06,541 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:57:06,541 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:57:06,544 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:57:06,546 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:57:06,546 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:57:06" (1/3) ... [2019-10-22 08:57:06,547 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@23402b77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:57:06, skipping insertion in model container [2019-10-22 08:57:06,547 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:57:06,547 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:06" (2/3) ... [2019-10-22 08:57:06,548 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@23402b77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:57:06, skipping insertion in model container [2019-10-22 08:57:06,548 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:57:06,548 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:06" (3/3) ... [2019-10-22 08:57:06,549 INFO L371 chiAutomizerObserver]: Analyzing ICFG NO_23.c [2019-10-22 08:57:06,602 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:57:06,602 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:57:06,603 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:57:06,603 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:57:06,603 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:57:06,603 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:57:06,603 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:57:06,604 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:57:06,619 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-10-22 08:57:06,640 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:57:06,640 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:57:06,641 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:57:06,650 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-10-22 08:57:06,650 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:57:06,650 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:57:06,650 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-10-22 08:57:06,651 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:57:06,651 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:57:06,651 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:57:06,652 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-10-22 08:57:06,652 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:57:06,660 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 7#L10-2true [2019-10-22 08:57:06,660 INFO L793 eck$LassoCheckResult]: Loop: 7#L10-2true assume !!(main_~i~0 < 100); 3#L10true assume main_~i~0 < 50;main_~i~0 := 51; 7#L10-2true [2019-10-22 08:57:06,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:06,668 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-10-22 08:57:06,677 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:06,677 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488148566] [2019-10-22 08:57:06,677 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:06,677 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:06,678 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:06,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:06,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:06,759 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:06,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:06,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2019-10-22 08:57:06,760 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:06,760 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030152604] [2019-10-22 08:57:06,760 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:06,761 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:06,761 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:06,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:06,768 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:06,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:06,770 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2019-10-22 08:57:06,770 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:06,770 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126978031] [2019-10-22 08:57:06,770 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:06,771 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:06,771 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:06,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:06,780 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:06,824 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:57:06,824 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:57:06,825 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:57:06,825 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:57:06,825 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 08:57:06,825 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:57:06,825 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:57:06,825 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:57:06,826 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration1_Loop [2019-10-22 08:57:06,826 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:57:06,826 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:57:06,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:06,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:06,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:06,923 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:57:06,923 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21d5f107-4240-45a1-aef4-763c29d773a7/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 [2019-10-22 08:57:06,966 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:57:06,966 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:57:06,975 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:57:06,975 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/working_dir_21d5f107-4240-45a1-aef4-763c29d773a7/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) [2019-10-22 08:57:06,984 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:57:06,984 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:57:07,003 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:57:07,003 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/working_dir_21d5f107-4240-45a1-aef4-763c29d773a7/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) [2019-10-22 08:57:07,013 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:57:07,013 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21d5f107-4240-45a1-aef4-763c29d773a7/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 [2019-10-22 08:57:07,043 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 08:57:07,043 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:57:07,084 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 08:57:07,089 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:57:07,089 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:57:07,089 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:57:07,089 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:57:07,089 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:57:07,090 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:57:07,090 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:57:07,090 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:57:07,090 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration1_Loop [2019-10-22 08:57:07,090 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:57:07,090 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:57:07,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:07,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:07,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:07,153 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:57:07,158 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:57:07,160 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 [2019-10-22 08:57:07,162 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:07,162 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:07,163 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:07,163 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:07,168 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:57:07,168 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:57:07,180 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:07,180 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 [2019-10-22 08:57:07,181 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:07,182 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:57:07,182 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:07,182 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:07,182 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:07,183 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:57:07,184 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:57:07,194 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 08:57:07,201 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 08:57:07,201 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-10-22 08:57:07,203 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 08:57:07,203 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 08:57:07,204 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 08:57:07,204 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] [2019-10-22 08:57:07,208 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 08:57:07,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:07,267 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:57:07,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:07,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:07,285 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:57:07,286 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:07,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:07,306 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 [2019-10-22 08:57:07,308 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2019-10-22 08:57:07,360 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 23 states and 30 transitions. Complement of second has 6 states. [2019-10-22 08:57:07,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-10-22 08:57:07,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 08:57:07,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2019-10-22 08:57:07,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2019-10-22 08:57:07,368 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:57:07,369 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2019-10-22 08:57:07,369 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:57:07,370 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2019-10-22 08:57:07,370 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:57:07,371 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2019-10-22 08:57:07,373 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:57:07,378 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2019-10-22 08:57:07,380 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-10-22 08:57:07,380 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-10-22 08:57:07,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-10-22 08:57:07,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 08:57:07,382 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-10-22 08:57:07,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-10-22 08:57:07,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-10-22 08:57:07,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-10-22 08:57:07,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-10-22 08:57:07,413 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-10-22 08:57:07,413 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-10-22 08:57:07,413 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:57:07,414 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-10-22 08:57:07,414 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:57:07,415 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:57:07,415 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:57:07,415 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-10-22 08:57:07,415 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:57:07,416 INFO L791 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 68#L10-2 assume !!(main_~i~0 < 100); 63#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 64#L10-2 [2019-10-22 08:57:07,416 INFO L793 eck$LassoCheckResult]: Loop: 64#L10-2 assume !!(main_~i~0 < 100); 69#L10 assume main_~i~0 < 50;main_~i~0 := 51; 64#L10-2 [2019-10-22 08:57:07,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:07,416 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2019-10-22 08:57:07,416 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:07,417 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953823106] [2019-10-22 08:57:07,418 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:07,419 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:07,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:07,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:07,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:07,463 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953823106] [2019-10-22 08:57:07,464 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:07,464 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-10-22 08:57:07,465 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749492507] [2019-10-22 08:57:07,467 INFO L796 eck$LassoCheckResult]: stem already infeasible [2019-10-22 08:57:07,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:07,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2019-10-22 08:57:07,468 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:07,469 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877958843] [2019-10-22 08:57:07,469 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:07,469 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:07,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:07,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:07,478 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:07,495 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:57:07,495 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:57:07,495 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:57:07,495 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:57:07,495 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 08:57:07,495 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:57:07,495 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:57:07,496 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:57:07,496 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration2_Loop [2019-10-22 08:57:07,496 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:57:07,496 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:57:07,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:07,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:07,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:07,563 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:57:07,563 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21d5f107-4240-45a1-aef4-763c29d773a7/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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:57:07,569 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:57:07,569 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:57:07,574 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:57:07,574 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/working_dir_21d5f107-4240-45a1-aef4-763c29d773a7/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) [2019-10-22 08:57:07,583 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:57:07,584 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21d5f107-4240-45a1-aef4-763c29d773a7/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) [2019-10-22 08:57:07,600 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 08:57:07,601 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:57:07,625 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 08:57:07,631 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:57:07,631 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:57:07,631 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:57:07,631 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:57:07,632 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:57:07,632 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:57:07,632 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:57:07,632 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:57:07,632 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration2_Loop [2019-10-22 08:57:07,633 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:57:07,633 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:57:07,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:07,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:07,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:07,685 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:57:07,685 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:57:07,685 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 [2019-10-22 08:57:07,686 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:07,686 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:57:07,686 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:07,686 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:07,686 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:07,687 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:57:07,687 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:57:07,692 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 08:57:07,696 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 08:57:07,696 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-10-22 08:57:07,696 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 08:57:07,696 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 08:57:07,697 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 08:57:07,697 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] [2019-10-22 08:57:07,697 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 08:57:07,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:07,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:07,714 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:57:07,715 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:07,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:07,721 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:57:07,721 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:07,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:07,722 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 [2019-10-22 08:57:07,722 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-10-22 08:57:07,737 INFO L76 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. [2019-10-22 08:57:07,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-10-22 08:57:07,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 08:57:07,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-10-22 08:57:07,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2019-10-22 08:57:07,740 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:57:07,740 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-10-22 08:57:07,740 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:57:07,740 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2019-10-22 08:57:07,740 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:57:07,740 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2019-10-22 08:57:07,741 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:57:07,741 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2019-10-22 08:57:07,741 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-10-22 08:57:07,742 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-10-22 08:57:07,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2019-10-22 08:57:07,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 08:57:07,742 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-10-22 08:57:07,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2019-10-22 08:57:07,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-10-22 08:57:07,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-10-22 08:57:07,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2019-10-22 08:57:07,743 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-10-22 08:57:07,744 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:07,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:57:07,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:57:07,748 INFO L87 Difference]: Start difference. First operand 11 states and 16 transitions. Second operand 3 states. [2019-10-22 08:57:07,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:07,759 INFO L93 Difference]: Finished difference Result 13 states and 17 transitions. [2019-10-22 08:57:07,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:57:07,760 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 17 transitions. [2019-10-22 08:57:07,761 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:57:07,761 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 12 states and 16 transitions. [2019-10-22 08:57:07,761 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2019-10-22 08:57:07,761 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-10-22 08:57:07,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2019-10-22 08:57:07,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 08:57:07,762 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-10-22 08:57:07,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2019-10-22 08:57:07,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-10-22 08:57:07,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-10-22 08:57:07,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2019-10-22 08:57:07,763 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2019-10-22 08:57:07,763 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2019-10-22 08:57:07,763 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 08:57:07,764 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 15 transitions. [2019-10-22 08:57:07,765 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:57:07,765 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:57:07,765 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:57:07,766 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1] [2019-10-22 08:57:07,766 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:57:07,766 INFO L791 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 [2019-10-22 08:57:07,766 INFO L793 eck$LassoCheckResult]: Loop: 148#L10-2 assume !!(main_~i~0 < 100); 147#L10 assume main_~i~0 < 50;main_~i~0 := 51; 148#L10-2 [2019-10-22 08:57:07,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:07,766 INFO L82 PathProgramCache]: Analyzing trace with hash -1366043347, now seen corresponding path program 1 times [2019-10-22 08:57:07,767 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:07,767 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804283336] [2019-10-22 08:57:07,767 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:07,767 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:07,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:07,788 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 08:57:07,788 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804283336] [2019-10-22 08:57:07,788 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:07,788 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:57:07,789 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994649523] [2019-10-22 08:57:07,789 INFO L796 eck$LassoCheckResult]: stem already infeasible [2019-10-22 08:57:07,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:07,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2019-10-22 08:57:07,789 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:07,789 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121715847] [2019-10-22 08:57:07,790 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:07,790 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:07,790 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:07,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:07,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:07,797 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:07,813 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:57:07,813 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:57:07,813 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:57:07,813 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:57:07,813 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 08:57:07,814 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:57:07,814 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:57:07,814 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:57:07,814 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration3_Loop [2019-10-22 08:57:07,814 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:57:07,814 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:57:07,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:07,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:07,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:07,866 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:57:07,866 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21d5f107-4240-45a1-aef4-763c29d773a7/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 [2019-10-22 08:57:07,872 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:57:07,872 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:57:07,876 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:57:07,876 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/working_dir_21d5f107-4240-45a1-aef4-763c29d773a7/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 [2019-10-22 08:57:07,881 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:57:07,881 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21d5f107-4240-45a1-aef4-763c29d773a7/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 [2019-10-22 08:57:07,892 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 08:57:07,892 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:57:07,909 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 08:57:07,910 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:57:07,910 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:57:07,910 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:57:07,911 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:57:07,911 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:57:07,911 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:57:07,911 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:57:07,911 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:57:07,911 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration3_Loop [2019-10-22 08:57:07,911 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:57:07,911 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:57:07,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:07,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:07,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:07,953 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:57:07,953 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:57:07,953 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 [2019-10-22 08:57:07,954 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:07,954 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:07,954 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:07,954 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:07,956 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:57:07,956 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:57:07,966 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:07,966 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 [2019-10-22 08:57:07,967 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:07,967 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:57:07,968 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:07,968 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:07,968 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:07,969 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:57:07,969 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:57:07,973 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 08:57:07,977 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 08:57:07,977 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-10-22 08:57:07,978 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 08:57:07,978 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 08:57:07,978 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 08:57:07,978 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] [2019-10-22 08:57:07,979 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 08:57:07,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:07,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:07,998 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:57:07,998 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:08,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:08,011 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:57:08,011 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:08,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:08,012 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 [2019-10-22 08:57:08,012 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-10-22 08:57:08,020 INFO L76 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. [2019-10-22 08:57:08,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-10-22 08:57:08,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 08:57:08,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-10-22 08:57:08,021 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 2 letters. [2019-10-22 08:57:08,022 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:57:08,022 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-10-22 08:57:08,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:08,039 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:57:08,040 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:08,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:08,044 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:57:08,045 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:08,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:08,046 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 [2019-10-22 08:57:08,046 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-10-22 08:57:08,055 INFO L76 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. [2019-10-22 08:57:08,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-10-22 08:57:08,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 08:57:08,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-10-22 08:57:08,057 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 2 letters. [2019-10-22 08:57:08,057 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:57:08,057 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-10-22 08:57:08,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:08,077 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:57:08,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:08,082 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:57:08,082 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:08,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:08,083 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 [2019-10-22 08:57:08,083 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-10-22 08:57:08,094 INFO L76 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. [2019-10-22 08:57:08,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-10-22 08:57:08,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 08:57:08,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-10-22 08:57:08,096 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2019-10-22 08:57:08,096 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:57:08,096 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 9 letters. Loop has 2 letters. [2019-10-22 08:57:08,096 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:57:08,096 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 4 letters. [2019-10-22 08:57:08,096 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:57:08,097 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 22 transitions. [2019-10-22 08:57:08,098 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-10-22 08:57:08,098 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 18 transitions. [2019-10-22 08:57:08,098 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-10-22 08:57:08,099 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-10-22 08:57:08,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2019-10-22 08:57:08,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 08:57:08,099 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2019-10-22 08:57:08,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2019-10-22 08:57:08,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 6. [2019-10-22 08:57:08,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-10-22 08:57:08,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2019-10-22 08:57:08,101 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2019-10-22 08:57:08,101 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:08,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:57:08,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:57:08,101 INFO L87 Difference]: Start difference. First operand 6 states and 8 transitions. Second operand 3 states. [2019-10-22 08:57:08,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:08,111 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2019-10-22 08:57:08,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:57:08,112 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2019-10-22 08:57:08,112 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-10-22 08:57:08,112 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 7 states and 8 transitions. [2019-10-22 08:57:08,113 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-10-22 08:57:08,113 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-10-22 08:57:08,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2019-10-22 08:57:08,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 08:57:08,113 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2019-10-22 08:57:08,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2019-10-22 08:57:08,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 5. [2019-10-22 08:57:08,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-10-22 08:57:08,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2019-10-22 08:57:08,114 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2019-10-22 08:57:08,115 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2019-10-22 08:57:08,115 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-10-22 08:57:08,115 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2019-10-22 08:57:08,115 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-10-22 08:57:08,115 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:57:08,115 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:57:08,116 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-10-22 08:57:08,116 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2019-10-22 08:57:08,116 INFO L791 eck$LassoCheckResult]: Stem: 318#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 315#L10-2 [2019-10-22 08:57:08,116 INFO L793 eck$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 [2019-10-22 08:57:08,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:08,116 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2019-10-22 08:57:08,117 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:08,117 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76437036] [2019-10-22 08:57:08,117 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:08,117 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:08,117 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:08,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:08,122 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:08,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:08,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1234249, now seen corresponding path program 1 times [2019-10-22 08:57:08,123 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:08,123 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142209446] [2019-10-22 08:57:08,123 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:08,123 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:08,123 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:08,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:08,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:08,131 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:08,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:08,131 INFO L82 PathProgramCache]: Analyzing trace with hash 29863400, now seen corresponding path program 2 times [2019-10-22 08:57:08,132 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:08,132 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794040108] [2019-10-22 08:57:08,132 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:08,132 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:08,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:08,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:08,140 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:08,169 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:57:08,170 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:57:08,170 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:57:08,170 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:57:08,170 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 08:57:08,170 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:57:08,170 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:57:08,170 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:57:08,171 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration4_Lasso [2019-10-22 08:57:08,171 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:57:08,171 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:57:08,172 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:08,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:08,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:08,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:08,227 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:57:08,227 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21d5f107-4240-45a1-aef4-763c29d773a7/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) [2019-10-22 08:57:08,231 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:57:08,232 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21d5f107-4240-45a1-aef4-763c29d773a7/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 08:57:08,244 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 08:57:08,244 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:57:08,253 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 08:57:08,255 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:57:08,255 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:57:08,255 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:57:08,255 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:57:08,255 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:57:08,255 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:57:08,256 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:57:08,256 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:57:08,256 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration4_Lasso [2019-10-22 08:57:08,256 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:57:08,256 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:57:08,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:08,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:08,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:08,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:08,312 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:57:08,312 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:57:08,313 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 [2019-10-22 08:57:08,313 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:08,314 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,314 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,314 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:08,315 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:57:08,316 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:57:08,338 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,342 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 [2019-10-22 08:57:08,343 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:08,344 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,345 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,345 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:08,346 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:57:08,349 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:57:08,353 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,353 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 [2019-10-22 08:57:08,354 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:08,354 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:57:08,354 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,354 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,354 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:08,355 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:57:08,355 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:57:08,355 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,356 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 [2019-10-22 08:57:08,357 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:08,357 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,357 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,357 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:08,358 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:57:08,358 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:57:08,361 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,361 INFO L489 LassoAnalysis]: Using template '2-nested'. [2019-10-22 08:57:08,362 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 [2019-10-22 08:57:08,362 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:08,362 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,363 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,363 INFO L204 nArgumentSynthesizer]: 3 template conjuncts. [2019-10-22 08:57:08,365 INFO L400 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-10-22 08:57:08,365 INFO L401 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-10-22 08:57:08,397 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,397 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 [2019-10-22 08:57:08,398 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:08,398 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,398 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,398 INFO L204 nArgumentSynthesizer]: 3 template conjuncts. [2019-10-22 08:57:08,401 INFO L400 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-10-22 08:57:08,402 INFO L401 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-10-22 08:57:08,410 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,410 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 [2019-10-22 08:57:08,411 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:08,411 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:57:08,411 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,411 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,411 INFO L204 nArgumentSynthesizer]: 3 template conjuncts. [2019-10-22 08:57:08,412 INFO L400 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-10-22 08:57:08,412 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:57:08,414 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,414 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 [2019-10-22 08:57:08,415 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:08,415 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,415 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,415 INFO L204 nArgumentSynthesizer]: 3 template conjuncts. [2019-10-22 08:57:08,417 INFO L400 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-10-22 08:57:08,417 INFO L401 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-10-22 08:57:08,423 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,423 INFO L489 LassoAnalysis]: Using template '3-nested'. [2019-10-22 08:57:08,424 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 [2019-10-22 08:57:08,430 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:08,431 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,431 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,431 INFO L204 nArgumentSynthesizer]: 4 template conjuncts. [2019-10-22 08:57:08,433 INFO L400 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-10-22 08:57:08,433 INFO L401 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-10-22 08:57:08,471 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,471 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 [2019-10-22 08:57:08,472 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:08,472 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,472 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,472 INFO L204 nArgumentSynthesizer]: 4 template conjuncts. [2019-10-22 08:57:08,474 INFO L400 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-10-22 08:57:08,475 INFO L401 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-10-22 08:57:08,481 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,481 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 [2019-10-22 08:57:08,482 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:08,482 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:57:08,482 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,482 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,482 INFO L204 nArgumentSynthesizer]: 4 template conjuncts. [2019-10-22 08:57:08,483 INFO L400 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-10-22 08:57:08,483 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:57:08,484 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,484 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 [2019-10-22 08:57:08,485 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:08,485 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,485 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,485 INFO L204 nArgumentSynthesizer]: 4 template conjuncts. [2019-10-22 08:57:08,487 INFO L400 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-10-22 08:57:08,487 INFO L401 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-10-22 08:57:08,491 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,491 INFO L489 LassoAnalysis]: Using template '4-nested'. [2019-10-22 08:57:08,492 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 [2019-10-22 08:57:08,492 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:08,493 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,493 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,493 INFO L204 nArgumentSynthesizer]: 5 template conjuncts. [2019-10-22 08:57:08,496 INFO L400 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-10-22 08:57:08,496 INFO L401 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2019-10-22 08:57:08,513 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,514 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 [2019-10-22 08:57:08,514 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:08,515 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,515 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,515 INFO L204 nArgumentSynthesizer]: 5 template conjuncts. [2019-10-22 08:57:08,517 INFO L400 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-10-22 08:57:08,517 INFO L401 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2019-10-22 08:57:08,524 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,524 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 [2019-10-22 08:57:08,525 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:08,525 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:57:08,525 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,526 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,526 INFO L204 nArgumentSynthesizer]: 5 template conjuncts. [2019-10-22 08:57:08,526 INFO L400 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2019-10-22 08:57:08,526 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:57:08,527 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,528 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 [2019-10-22 08:57:08,528 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:08,528 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,529 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,529 INFO L204 nArgumentSynthesizer]: 5 template conjuncts. [2019-10-22 08:57:08,531 INFO L400 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-10-22 08:57:08,531 INFO L401 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2019-10-22 08:57:08,534 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,535 INFO L489 LassoAnalysis]: Using template '2-phase'. [2019-10-22 08:57:08,535 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 [2019-10-22 08:57:08,536 WARN L332 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-10-22 08:57:08,536 INFO L337 nArgumentSynthesizer]: Template has degree 1. [2019-10-22 08:57:08,536 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,537 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,537 INFO L204 nArgumentSynthesizer]: 3 template conjuncts. [2019-10-22 08:57:08,539 INFO L400 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-10-22 08:57:08,539 INFO L401 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-10-22 08:57:08,553 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,553 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 [2019-10-22 08:57:08,554 WARN L332 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-10-22 08:57:08,554 INFO L337 nArgumentSynthesizer]: Template has degree 1. [2019-10-22 08:57:08,554 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,554 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,554 INFO L204 nArgumentSynthesizer]: 3 template conjuncts. [2019-10-22 08:57:08,556 INFO L400 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-10-22 08:57:08,556 INFO L401 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-10-22 08:57:08,561 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,562 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 [2019-10-22 08:57:08,563 WARN L332 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-10-22 08:57:08,563 INFO L337 nArgumentSynthesizer]: Template has degree 1. [2019-10-22 08:57:08,563 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:57:08,563 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,563 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,563 INFO L204 nArgumentSynthesizer]: 3 template conjuncts. [2019-10-22 08:57:08,564 INFO L400 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-10-22 08:57:08,564 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:57:08,565 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,565 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 [2019-10-22 08:57:08,566 WARN L332 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-10-22 08:57:08,566 INFO L337 nArgumentSynthesizer]: Template has degree 1. [2019-10-22 08:57:08,567 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,567 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,567 INFO L204 nArgumentSynthesizer]: 3 template conjuncts. [2019-10-22 08:57:08,568 INFO L400 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-10-22 08:57:08,569 INFO L401 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-10-22 08:57:08,573 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,573 INFO L489 LassoAnalysis]: Using template '3-phase'. [2019-10-22 08:57:08,574 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 [2019-10-22 08:57:08,577 WARN L332 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-10-22 08:57:08,577 INFO L337 nArgumentSynthesizer]: Template has degree 2. [2019-10-22 08:57:08,577 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,578 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,578 INFO L204 nArgumentSynthesizer]: 4 template conjuncts. [2019-10-22 08:57:08,582 INFO L400 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-10-22 08:57:08,582 INFO L401 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-10-22 08:57:08,663 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,670 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 [2019-10-22 08:57:08,671 WARN L332 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-10-22 08:57:08,671 INFO L337 nArgumentSynthesizer]: Template has degree 2. [2019-10-22 08:57:08,672 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,672 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,672 INFO L204 nArgumentSynthesizer]: 4 template conjuncts. [2019-10-22 08:57:08,682 INFO L400 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-10-22 08:57:08,682 INFO L401 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-10-22 08:57:08,688 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,691 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 [2019-10-22 08:57:08,692 WARN L332 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-10-22 08:57:08,692 INFO L337 nArgumentSynthesizer]: Template has degree 2. [2019-10-22 08:57:08,692 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:57:08,692 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,692 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,693 INFO L204 nArgumentSynthesizer]: 4 template conjuncts. [2019-10-22 08:57:08,693 INFO L400 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-10-22 08:57:08,694 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:57:08,695 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,695 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 [2019-10-22 08:57:08,696 WARN L332 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-10-22 08:57:08,704 INFO L337 nArgumentSynthesizer]: Template has degree 2. [2019-10-22 08:57:08,704 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,705 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,705 INFO L204 nArgumentSynthesizer]: 4 template conjuncts. [2019-10-22 08:57:08,707 INFO L400 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-10-22 08:57:08,707 INFO L401 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-10-22 08:57:08,714 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,716 INFO L489 LassoAnalysis]: Using template '4-phase'. [2019-10-22 08:57:08,717 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 [2019-10-22 08:57:08,718 WARN L332 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-10-22 08:57:08,718 INFO L337 nArgumentSynthesizer]: Template has degree 3. [2019-10-22 08:57:08,718 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,718 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,718 INFO L204 nArgumentSynthesizer]: 5 template conjuncts. [2019-10-22 08:57:08,723 INFO L400 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-10-22 08:57:08,723 INFO L401 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2019-10-22 08:57:08,755 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,756 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 [2019-10-22 08:57:08,757 WARN L332 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-10-22 08:57:08,758 INFO L337 nArgumentSynthesizer]: Template has degree 3. [2019-10-22 08:57:08,759 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,759 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,759 INFO L204 nArgumentSynthesizer]: 5 template conjuncts. [2019-10-22 08:57:08,763 INFO L400 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-10-22 08:57:08,769 INFO L401 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2019-10-22 08:57:08,783 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,785 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 [2019-10-22 08:57:08,786 WARN L332 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-10-22 08:57:08,787 INFO L337 nArgumentSynthesizer]: Template has degree 3. [2019-10-22 08:57:08,787 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:57:08,787 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,787 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,787 INFO L204 nArgumentSynthesizer]: 5 template conjuncts. [2019-10-22 08:57:08,789 INFO L400 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2019-10-22 08:57:08,789 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:57:08,790 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,791 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 [2019-10-22 08:57:08,792 WARN L332 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-10-22 08:57:08,792 INFO L337 nArgumentSynthesizer]: Template has degree 3. [2019-10-22 08:57:08,792 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,792 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,792 INFO L204 nArgumentSynthesizer]: 5 template conjuncts. [2019-10-22 08:57:08,795 INFO L400 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-10-22 08:57:08,795 INFO L401 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2019-10-22 08:57:08,804 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,805 INFO L489 LassoAnalysis]: Using template '2-lex'. [2019-10-22 08:57:08,805 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 [2019-10-22 08:57:08,806 WARN L332 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-10-22 08:57:08,807 INFO L337 nArgumentSynthesizer]: Template has degree 1. [2019-10-22 08:57:08,807 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,807 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,807 INFO L204 nArgumentSynthesizer]: 4 template conjuncts. [2019-10-22 08:57:08,809 INFO L400 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-10-22 08:57:08,810 INFO L401 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-10-22 08:57:08,843 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,843 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 [2019-10-22 08:57:08,844 WARN L332 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-10-22 08:57:08,844 INFO L337 nArgumentSynthesizer]: Template has degree 1. [2019-10-22 08:57:08,844 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,844 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,845 INFO L204 nArgumentSynthesizer]: 4 template conjuncts. [2019-10-22 08:57:08,846 INFO L400 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-10-22 08:57:08,846 INFO L401 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-10-22 08:57:08,851 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,852 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 [2019-10-22 08:57:08,852 WARN L332 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-10-22 08:57:08,852 INFO L337 nArgumentSynthesizer]: Template has degree 1. [2019-10-22 08:57:08,853 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:57:08,853 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,853 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,853 INFO L204 nArgumentSynthesizer]: 4 template conjuncts. [2019-10-22 08:57:08,853 INFO L400 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-10-22 08:57:08,853 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:57:08,855 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,855 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 [2019-10-22 08:57:08,856 WARN L332 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-10-22 08:57:08,856 INFO L337 nArgumentSynthesizer]: Template has degree 1. [2019-10-22 08:57:08,856 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,856 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,856 INFO L204 nArgumentSynthesizer]: 4 template conjuncts. [2019-10-22 08:57:08,858 INFO L400 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-10-22 08:57:08,858 INFO L401 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-10-22 08:57:08,861 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,861 INFO L489 LassoAnalysis]: Using template '3-lex'. [2019-10-22 08:57:08,862 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 [2019-10-22 08:57:08,862 WARN L332 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-10-22 08:57:08,862 INFO L337 nArgumentSynthesizer]: Template has degree 3. [2019-10-22 08:57:08,862 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,862 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,863 INFO L204 nArgumentSynthesizer]: 6 template conjuncts. [2019-10-22 08:57:08,866 INFO L400 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2019-10-22 08:57:08,866 INFO L401 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2019-10-22 08:57:08,924 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,924 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 [2019-10-22 08:57:08,925 WARN L332 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-10-22 08:57:08,925 INFO L337 nArgumentSynthesizer]: Template has degree 3. [2019-10-22 08:57:08,925 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,925 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,925 INFO L204 nArgumentSynthesizer]: 6 template conjuncts. [2019-10-22 08:57:08,927 INFO L400 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2019-10-22 08:57:08,927 INFO L401 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2019-10-22 08:57:08,933 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,933 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 [2019-10-22 08:57:08,934 WARN L332 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-10-22 08:57:08,934 INFO L337 nArgumentSynthesizer]: Template has degree 3. [2019-10-22 08:57:08,934 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:57:08,934 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,934 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,934 INFO L204 nArgumentSynthesizer]: 6 template conjuncts. [2019-10-22 08:57:08,935 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:57:08,935 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:57:08,937 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,937 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 [2019-10-22 08:57:08,938 WARN L332 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-10-22 08:57:08,938 INFO L337 nArgumentSynthesizer]: Template has degree 3. [2019-10-22 08:57:08,938 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:08,938 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:08,938 INFO L204 nArgumentSynthesizer]: 6 template conjuncts. [2019-10-22 08:57:08,940 INFO L400 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2019-10-22 08:57:08,940 INFO L401 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2019-10-22 08:57:08,945 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:08,945 INFO L470 BuchiCegarLoop]: Result of lasso check was UNKNOWN. I will concatenate loop to stem and try again. [2019-10-22 08:57:08,945 INFO L791 eck$LassoCheckResult]: Stem: 318#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 315#L10-2 assume !!(main_~i~0 < 100); 316#L10 assume main_~i~0 < 50;main_~i~0 := 51; 317#L10-2 assume !!(main_~i~0 < 100); 314#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 315#L10-2 [2019-10-22 08:57:08,945 INFO L793 eck$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 [2019-10-22 08:57:08,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:08,946 INFO L82 PathProgramCache]: Analyzing trace with hash 29863400, now seen corresponding path program 3 times [2019-10-22 08:57:08,946 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:08,946 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856152152] [2019-10-22 08:57:08,946 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:08,946 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:08,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:08,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:08,951 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:08,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:08,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1234249, now seen corresponding path program 2 times [2019-10-22 08:57:08,952 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:08,952 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894396064] [2019-10-22 08:57:08,952 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:08,952 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:08,952 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:08,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:08,955 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:08,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:08,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1492334512, now seen corresponding path program 4 times [2019-10-22 08:57:08,956 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:08,956 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858183938] [2019-10-22 08:57:08,956 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:08,957 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:08,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:08,961 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:09,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:57:09 BoogieIcfgContainer [2019-10-22 08:57:09,012 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:57:09,012 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:57:09,012 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:57:09,013 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:57:09,013 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:06" (3/4) ... [2019-10-22 08:57:09,016 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 08:57:09,053 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_21d5f107-4240-45a1-aef4-763c29d773a7/bin/uautomizer/witness.graphml [2019-10-22 08:57:09,054 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:57:09,057 INFO L168 Benchmark]: Toolchain (without parser) took 3014.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -112.2 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:09,057 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:09,058 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -192.6 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:09,059 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:09,060 INFO L168 Benchmark]: Boogie Preprocessor took 14.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:09,060 INFO L168 Benchmark]: RCFGBuilder took 200.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:09,060 INFO L168 Benchmark]: BuchiAutomizer took 2470.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 57.6 MB). Peak memory consumption was 57.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:09,061 INFO L168 Benchmark]: Witness Printer took 42.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:09,063 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 244.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -192.6 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 200.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2470.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 57.6 MB). Peak memory consumption was 57.6 MB. Max. memory is 11.5 GB. * Witness Printer took 42.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 11.5 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 2.4s and 4 iterations. TraceHistogramMax:3. Analysis of lassos took 1.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. 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: 20ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - 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...