./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Log_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Log_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/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 2d80b45a01c32727728c3a89e06c1e9a4dc4868b ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 06:12:22,515 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 06:12:22,516 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 06:12:22,529 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 06:12:22,530 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 06:12:22,530 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 06:12:22,531 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 06:12:22,533 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 06:12:22,534 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 06:12:22,538 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 06:12:22,539 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 06:12:22,539 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 06:12:22,540 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 06:12:22,541 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 06:12:22,542 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 06:12:22,545 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 06:12:22,545 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 06:12:22,547 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 06:12:22,548 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 06:12:22,549 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 06:12:22,561 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 06:12:22,562 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 06:12:22,564 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 06:12:22,564 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 06:12:22,564 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 06:12:22,565 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 06:12:22,565 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 06:12:22,566 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 06:12:22,566 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 06:12:22,567 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 06:12:22,567 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 06:12:22,568 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 06:12:22,568 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 06:12:22,568 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 06:12:22,569 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 06:12:22,569 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 06:12:22,569 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-10-27 06:12:22,585 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 06:12:22,585 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 06:12:22,595 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 06:12:22,595 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 06:12:22,595 INFO L133 SettingsManager]: * Use SBE=true [2018-10-27 06:12:22,595 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-10-27 06:12:22,596 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-10-27 06:12:22,596 INFO L133 SettingsManager]: * Use old map elimination=false [2018-10-27 06:12:22,596 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-10-27 06:12:22,596 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-10-27 06:12:22,596 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-10-27 06:12:22,596 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 06:12:22,596 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 06:12:22,596 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 06:12:22,597 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 06:12:22,597 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-10-27 06:12:22,597 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-10-27 06:12:22,597 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-10-27 06:12:22,597 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 06:12:22,597 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-10-27 06:12:22,597 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-10-27 06:12:22,598 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 06:12:22,599 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 06:12:22,599 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-10-27 06:12:22,600 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 06:12:22,600 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-27 06:12:22,600 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-10-27 06:12:22,601 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-27 06:12:22,601 INFO L133 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_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/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 -> 2d80b45a01c32727728c3a89e06c1e9a4dc4868b [2018-10-27 06:12:22,631 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 06:12:22,641 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 06:12:22,644 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 06:12:22,645 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 06:12:22,645 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 06:12:22,645 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/Log_true-termination_true-no-overflow.c [2018-10-27 06:12:22,691 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/uautomizer/data/ec00fb19c/b198b9b765264888aca715736ebed63f/FLAGb75f5af13 [2018-10-27 06:12:23,055 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 06:12:23,055 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4e82b10e-a2ed-4785-b071-a7befe782d7c/sv-benchmarks/c/termination-restricted-15/Log_true-termination_true-no-overflow.c [2018-10-27 06:12:23,060 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/uautomizer/data/ec00fb19c/b198b9b765264888aca715736ebed63f/FLAGb75f5af13 [2018-10-27 06:12:23,070 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/uautomizer/data/ec00fb19c/b198b9b765264888aca715736ebed63f [2018-10-27 06:12:23,073 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 06:12:23,074 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 06:12:23,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 06:12:23,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 06:12:23,078 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 06:12:23,079 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:12:23" (1/1) ... [2018-10-27 06:12:23,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c869f3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:12:23, skipping insertion in model container [2018-10-27 06:12:23,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:12:23" (1/1) ... [2018-10-27 06:12:23,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 06:12:23,106 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 06:12:23,210 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:12:23,213 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 06:12:23,223 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:12:23,232 INFO L193 MainTranslator]: Completed translation [2018-10-27 06:12:23,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:12:23 WrapperNode [2018-10-27 06:12:23,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 06:12:23,233 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 06:12:23,233 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 06:12:23,234 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 06:12:23,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:12:23" (1/1) ... [2018-10-27 06:12:23,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:12:23" (1/1) ... [2018-10-27 06:12:23,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 06:12:23,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 06:12:23,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 06:12:23,260 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 06:12:23,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:12:23" (1/1) ... [2018-10-27 06:12:23,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:12:23" (1/1) ... [2018-10-27 06:12:23,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:12:23" (1/1) ... [2018-10-27 06:12:23,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:12:23" (1/1) ... [2018-10-27 06:12:23,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:12:23" (1/1) ... [2018-10-27 06:12:23,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:12:23" (1/1) ... [2018-10-27 06:12:23,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:12:23" (1/1) ... [2018-10-27 06:12:23,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 06:12:23,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 06:12:23,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 06:12:23,277 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 06:12:23,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:12:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/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 [2018-10-27 06:12:23,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 06:12:23,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 06:12:23,547 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 06:12:23,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:12:23 BoogieIcfgContainer [2018-10-27 06:12:23,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 06:12:23,548 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-10-27 06:12:23,548 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-10-27 06:12:23,552 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-10-27 06:12:23,553 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:12:23,553 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.10 06:12:23" (1/3) ... [2018-10-27 06:12:23,554 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a55faed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:12:23, skipping insertion in model container [2018-10-27 06:12:23,554 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:12:23,554 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:12:23" (2/3) ... [2018-10-27 06:12:23,555 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a55faed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:12:23, skipping insertion in model container [2018-10-27 06:12:23,555 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:12:23,555 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:12:23" (3/3) ... [2018-10-27 06:12:23,557 INFO L375 chiAutomizerObserver]: Analyzing ICFG Log_true-termination_true-no-overflow.c [2018-10-27 06:12:23,603 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 06:12:23,604 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-10-27 06:12:23,604 INFO L375 BuchiCegarLoop]: Hoare is false [2018-10-27 06:12:23,605 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-10-27 06:12:23,605 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 06:12:23,605 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 06:12:23,605 INFO L379 BuchiCegarLoop]: Difference is false [2018-10-27 06:12:23,605 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 06:12:23,605 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-10-27 06:12:23,618 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-10-27 06:12:23,636 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-10-27 06:12:23,636 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:12:23,636 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:12:23,642 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-10-27 06:12:23,642 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-10-27 06:12:23,643 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-10-27 06:12:23,643 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-10-27 06:12:23,644 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-10-27 06:12:23,644 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:12:23,644 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:12:23,644 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-10-27 06:12:23,644 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-10-27 06:12:23,652 INFO L793 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 4#L13-3true [2018-10-27 06:12:23,652 INFO L795 eck$LassoCheckResult]: Loop: 4#L13-3true assume true; 8#L13-1true assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0;main_~restmp~0 := 0; 12#L17-3true assume !true; 10#L17-4true main_~x~0 := main_~xtmp~0;main_~res~0 := main_~res~0 + 1; 4#L13-3true [2018-10-27 06:12:23,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:23,659 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-10-27 06:12:23,660 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:12:23,661 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:12:23,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:23,708 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:12:23,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:23,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:23,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:23,738 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:23,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1114569, now seen corresponding path program 1 times [2018-10-27 06:12:23,738 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:12:23,738 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:12:23,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:23,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:12:23,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:23,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:12:23,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:12:23,769 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 06:12:23,769 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 06:12:23,774 INFO L810 eck$LassoCheckResult]: loop already infeasible [2018-10-27 06:12:23,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 06:12:23,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 06:12:23,786 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2018-10-27 06:12:23,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:12:23,792 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-10-27 06:12:23,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 06:12:23,794 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2018-10-27 06:12:23,795 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-10-27 06:12:23,799 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 8 transitions. [2018-10-27 06:12:23,800 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-10-27 06:12:23,800 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-10-27 06:12:23,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2018-10-27 06:12:23,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-10-27 06:12:23,801 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-10-27 06:12:23,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2018-10-27 06:12:23,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-10-27 06:12:23,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-10-27 06:12:23,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2018-10-27 06:12:23,824 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-10-27 06:12:23,824 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-10-27 06:12:23,824 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-10-27 06:12:23,825 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2018-10-27 06:12:23,825 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-10-27 06:12:23,825 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:12:23,825 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:12:23,826 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-10-27 06:12:23,826 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-10-27 06:12:23,826 INFO L793 eck$LassoCheckResult]: Stem: 33#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 30#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 31#L13-3 [2018-10-27 06:12:23,826 INFO L795 eck$LassoCheckResult]: Loop: 31#L13-3 assume true; 32#L13-1 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0;main_~restmp~0 := 0; 36#L17-3 assume true; 34#L17-1 assume !(main_~xtmp~0 > 1); 35#L17-4 main_~x~0 := main_~xtmp~0;main_~res~0 := main_~res~0 + 1; 31#L13-3 [2018-10-27 06:12:23,826 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:23,826 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2018-10-27 06:12:23,826 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:12:23,827 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:12:23,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:23,828 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:12:23,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:23,833 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:23,834 INFO L82 PathProgramCache]: Analyzing trace with hash 34543791, now seen corresponding path program 1 times [2018-10-27 06:12:23,834 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:12:23,834 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:12:23,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:23,835 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:12:23,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:12:23,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:12:23,863 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 06:12:23,863 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 06:12:23,863 INFO L810 eck$LassoCheckResult]: loop already infeasible [2018-10-27 06:12:23,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 06:12:23,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 06:12:23,864 INFO L87 Difference]: Start difference. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand 3 states. [2018-10-27 06:12:23,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:12:23,910 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2018-10-27 06:12:23,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 06:12:23,923 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2018-10-27 06:12:23,923 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-10-27 06:12:23,924 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 10 transitions. [2018-10-27 06:12:23,924 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-10-27 06:12:23,924 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-10-27 06:12:23,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2018-10-27 06:12:23,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-10-27 06:12:23,924 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2018-10-27 06:12:23,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2018-10-27 06:12:23,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-10-27 06:12:23,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-10-27 06:12:23,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2018-10-27 06:12:23,925 INFO L728 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2018-10-27 06:12:23,926 INFO L608 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2018-10-27 06:12:23,926 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-10-27 06:12:23,926 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2018-10-27 06:12:23,926 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-10-27 06:12:23,926 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:12:23,926 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:12:23,926 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-10-27 06:12:23,927 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1] [2018-10-27 06:12:23,927 INFO L793 eck$LassoCheckResult]: Stem: 57#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 52#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 53#L13-3 [2018-10-27 06:12:23,927 INFO L795 eck$LassoCheckResult]: Loop: 53#L13-3 assume true; 54#L13-1 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0;main_~restmp~0 := 0; 58#L17-3 assume true; 55#L17-1 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := main_~restmp~0 + 1; 56#L17-3 assume true; 60#L17-1 assume !(main_~xtmp~0 > 1); 59#L17-4 main_~x~0 := main_~xtmp~0;main_~res~0 := main_~res~0 + 1; 53#L13-3 [2018-10-27 06:12:23,927 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:23,927 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2018-10-27 06:12:23,927 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:12:23,927 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:12:23,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:23,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:12:23,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:23,931 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:23,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1163104599, now seen corresponding path program 1 times [2018-10-27 06:12:23,932 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:12:23,932 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:12:23,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:23,933 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:12:23,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:23,955 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:23,956 INFO L82 PathProgramCache]: Analyzing trace with hash 383192231, now seen corresponding path program 1 times [2018-10-27 06:12:23,956 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:12:23,956 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:12:23,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:23,957 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:12:23,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:23,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:24,119 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 24 [2018-10-27 06:12:24,169 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:12:24,170 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:12:24,170 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:12:24,170 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:12:24,170 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:12:24,170 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:12:24,171 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:12:24,171 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:12:24,171 INFO L131 ssoRankerPreferences]: Filename of dumped script: Log_true-termination_true-no-overflow.c_Iteration3_Loop [2018-10-27 06:12:24,171 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:12:24,171 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:12:24,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:24,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:24,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:24,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:24,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:24,488 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:12:24,489 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/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 [2018-10-27 06:12:24,496 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:12:24,496 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:12:24,519 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:12:24,519 INFO L446 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_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:12:24,524 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:12:24,524 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:12:24,541 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:12:24,541 INFO L446 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_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:12:24,545 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:12:24,545 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/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 [2018-10-27 06:12:24,565 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:12:24,565 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:12:24,590 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:12:24,590 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~0=0} Honda state: {ULTIMATE.start_main_~res~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~res~0=-1}, {ULTIMATE.start_main_~res~0=7}, {ULTIMATE.start_main_~res~0=-5}] Lambdas: [8, 1, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/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 [2018-10-27 06:12:24,607 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:12:24,607 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:12:24,624 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:12:24,624 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~restmp~0=1} Honda state: {ULTIMATE.start_main_~restmp~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:12:24,628 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:12:24,628 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/uautomizer/z3 Starting monitored process 8 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:12:24,652 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:12:24,652 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:12:24,923 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:12:24,925 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:12:24,925 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:12:24,925 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:12:24,925 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:12:24,925 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:12:24,925 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:12:24,925 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:12:24,926 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:12:24,926 INFO L131 ssoRankerPreferences]: Filename of dumped script: Log_true-termination_true-no-overflow.c_Iteration3_Loop [2018-10-27 06:12:24,926 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:12:24,926 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:12:24,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:24,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:24,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:24,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:24,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:25,108 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:12:25,113 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:12:25,114 INFO L122 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 [2018-10-27 06:12:25,115 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:12:25,115 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:12:25,116 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:12:25,116 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:12:25,120 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:12:25,120 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:12:25,126 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:12:25,127 INFO L122 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 [2018-10-27 06:12:25,127 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:12:25,128 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:12:25,129 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:12:25,129 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:12:25,131 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:12:25,131 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:12:25,140 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:12:25,140 INFO L122 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 [2018-10-27 06:12:25,141 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:12:25,142 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:12:25,142 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:12:25,142 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:12:25,142 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:12:25,143 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:12:25,143 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:12:25,147 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:12:25,148 INFO L122 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 [2018-10-27 06:12:25,148 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:12:25,148 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:12:25,148 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:12:25,149 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:12:25,149 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:12:25,149 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:12:25,149 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:12:25,155 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:12:25,156 INFO L122 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 [2018-10-27 06:12:25,156 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:12:25,156 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:12:25,156 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:12:25,157 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:12:25,157 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:12:25,157 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:12:25,157 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:12:25,166 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:12:25,170 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-10-27 06:12:25,171 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-10-27 06:12:25,172 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:12:25,172 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-10-27 06:12:25,173 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:12:25,173 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-10-27 06:12:25,175 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-10-27 06:12:25,204 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:25,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:12:25,210 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:12:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:12:25,218 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:12:25,242 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-27 06:12:25,244 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-10-27 06:12:25,245 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2 Second operand 5 states. [2018-10-27 06:12:25,621 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2. Second operand 5 states. Result 16 states and 19 transitions. Complement of second has 8 states. [2018-10-27 06:12:25,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2018-10-27 06:12:25,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-10-27 06:12:25,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2018-10-27 06:12:25,623 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 2 letters. Loop has 7 letters. [2018-10-27 06:12:25,623 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:12:25,623 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 9 letters. Loop has 7 letters. [2018-10-27 06:12:25,623 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:12:25,623 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 2 letters. Loop has 14 letters. [2018-10-27 06:12:25,624 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:12:25,624 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2018-10-27 06:12:25,624 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-10-27 06:12:25,625 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 15 states and 18 transitions. [2018-10-27 06:12:25,625 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-10-27 06:12:25,625 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-10-27 06:12:25,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 18 transitions. [2018-10-27 06:12:25,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:12:25,627 INFO L705 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2018-10-27 06:12:25,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 18 transitions. [2018-10-27 06:12:25,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2018-10-27 06:12:25,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-10-27 06:12:25,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2018-10-27 06:12:25,629 INFO L728 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2018-10-27 06:12:25,629 INFO L608 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2018-10-27 06:12:25,629 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-10-27 06:12:25,629 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 16 transitions. [2018-10-27 06:12:25,630 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-10-27 06:12:25,631 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:12:25,631 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:12:25,631 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-10-27 06:12:25,631 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-10-27 06:12:25,631 INFO L793 eck$LassoCheckResult]: Stem: 138#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 133#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 134#L13-3 assume true; 136#L13-1 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0;main_~restmp~0 := 0; 140#L17-3 [2018-10-27 06:12:25,631 INFO L795 eck$LassoCheckResult]: Loop: 140#L17-3 assume true; 139#L17-1 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := main_~restmp~0 + 1; 140#L17-3 [2018-10-27 06:12:25,632 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:25,632 INFO L82 PathProgramCache]: Analyzing trace with hash 925641, now seen corresponding path program 1 times [2018-10-27 06:12:25,632 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:12:25,632 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:12:25,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:25,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:12:25,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:25,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:25,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:25,639 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:25,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1479, now seen corresponding path program 1 times [2018-10-27 06:12:25,639 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:12:25,639 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:12:25,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:25,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:12:25,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:25,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:25,645 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:25,646 INFO L82 PathProgramCache]: Analyzing trace with hash 889541519, now seen corresponding path program 1 times [2018-10-27 06:12:25,646 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:12:25,646 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:12:25,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:25,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:12:25,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:25,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:25,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:25,695 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:12:25,695 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:12:25,695 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:12:25,695 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:12:25,695 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:12:25,695 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:12:25,695 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:12:25,695 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:12:25,695 INFO L131 ssoRankerPreferences]: Filename of dumped script: Log_true-termination_true-no-overflow.c_Iteration4_Loop [2018-10-27 06:12:25,695 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:12:25,695 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:12:25,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:25,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:25,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:25,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:25,822 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:12:25,822 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/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 [2018-10-27 06:12:25,828 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:12:25,829 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:12:25,845 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:12:25,845 INFO L446 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_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/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 [2018-10-27 06:12:25,850 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:12:25,850 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/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 [2018-10-27 06:12:25,870 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:12:25,870 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:12:25,892 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:12:25,893 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~restmp~0=0} Honda state: {ULTIMATE.start_main_~restmp~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~restmp~0=-2}, {ULTIMATE.start_main_~restmp~0=6}, {ULTIMATE.start_main_~restmp~0=-3}] Lambdas: [4, 1, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/uautomizer/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:12:25,911 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:12:25,911 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:12:25,927 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:12:25,927 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/uautomizer/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:12:25,931 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:12:25,932 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/uautomizer/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:12:25,950 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:12:25,950 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:12:25,994 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:12:25,997 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:12:25,997 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:12:25,997 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:12:25,997 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:12:25,998 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:12:25,998 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:12:25,998 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:12:25,998 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:12:25,998 INFO L131 ssoRankerPreferences]: Filename of dumped script: Log_true-termination_true-no-overflow.c_Iteration4_Loop [2018-10-27 06:12:25,998 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:12:25,998 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:12:25,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:26,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:26,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:26,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:26,091 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:12:26,091 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:12:26,092 INFO L122 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 [2018-10-27 06:12:26,092 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:12:26,093 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:12:26,093 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:12:26,093 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:12:26,094 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:12:26,094 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:12:26,100 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:12:26,100 INFO L122 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 [2018-10-27 06:12:26,101 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:12:26,101 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:12:26,101 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:12:26,101 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:12:26,101 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:12:26,102 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:12:26,102 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:12:26,107 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:12:26,107 INFO L122 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 [2018-10-27 06:12:26,108 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:12:26,108 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:12:26,108 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:12:26,108 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:12:26,109 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:12:26,109 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:12:26,115 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:12:26,116 INFO L122 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 [2018-10-27 06:12:26,116 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:12:26,116 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:12:26,117 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:12:26,117 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:12:26,117 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:12:26,117 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:12:26,117 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:12:26,123 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:12:26,125 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-10-27 06:12:26,125 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-10-27 06:12:26,125 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:12:26,125 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-10-27 06:12:26,126 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:12:26,127 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0) = 1*ULTIMATE.start_main_~xtmp~0 Supporting invariants [] [2018-10-27 06:12:26,127 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-10-27 06:12:26,175 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:12:26,180 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:12:26,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:12:26,183 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:12:26,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:12:26,184 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 [2018-10-27 06:12:26,184 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-10-27 06:12:26,204 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 33 states and 39 transitions. Complement of second has 5 states. [2018-10-27 06:12:26,204 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 [2018-10-27 06:12:26,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-10-27 06:12:26,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-10-27 06:12:26,205 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 2 letters. [2018-10-27 06:12:26,206 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:12:26,206 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2018-10-27 06:12:26,206 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:12:26,206 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 4 letters. [2018-10-27 06:12:26,206 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:12:26,207 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 39 transitions. [2018-10-27 06:12:26,208 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-10-27 06:12:26,209 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 23 states and 27 transitions. [2018-10-27 06:12:26,209 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-10-27 06:12:26,210 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-10-27 06:12:26,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 27 transitions. [2018-10-27 06:12:26,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:12:26,210 INFO L705 BuchiCegarLoop]: Abstraction has 23 states and 27 transitions. [2018-10-27 06:12:26,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 27 transitions. [2018-10-27 06:12:26,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 18. [2018-10-27 06:12:26,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-10-27 06:12:26,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2018-10-27 06:12:26,212 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2018-10-27 06:12:26,212 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2018-10-27 06:12:26,212 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-10-27 06:12:26,212 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2018-10-27 06:12:26,213 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-10-27 06:12:26,213 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:12:26,213 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:12:26,213 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1] [2018-10-27 06:12:26,213 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-10-27 06:12:26,213 INFO L793 eck$LassoCheckResult]: Stem: 227#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 217#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 218#L13-3 assume true; 219#L13-1 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0;main_~restmp~0 := 0; 230#L17-3 assume true; 231#L17-1 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := main_~restmp~0 + 1; 234#L17-3 assume true; 232#L17-1 assume !(main_~xtmp~0 > 1); 229#L17-4 main_~x~0 := main_~xtmp~0;main_~res~0 := main_~res~0 + 1; 220#L13-3 assume true; 222#L13-1 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0;main_~restmp~0 := 0; 224#L17-3 [2018-10-27 06:12:26,214 INFO L795 eck$LassoCheckResult]: Loop: 224#L17-3 assume true; 223#L17-1 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := main_~restmp~0 + 1; 224#L17-3 [2018-10-27 06:12:26,216 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:26,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1119453267, now seen corresponding path program 2 times [2018-10-27 06:12:26,217 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:12:26,217 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:12:26,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:26,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:12:26,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:12:26,238 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-27 06:12:26,238 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 06:12:26,238 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 06:12:26,238 INFO L798 eck$LassoCheckResult]: stem already infeasible [2018-10-27 06:12:26,238 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:26,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1479, now seen corresponding path program 2 times [2018-10-27 06:12:26,239 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:12:26,239 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:12:26,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:26,240 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:12:26,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:26,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:26,257 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:12:26,257 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:12:26,257 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:12:26,257 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:12:26,257 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:12:26,257 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:12:26,258 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:12:26,258 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:12:26,258 INFO L131 ssoRankerPreferences]: Filename of dumped script: Log_true-termination_true-no-overflow.c_Iteration5_Loop [2018-10-27 06:12:26,258 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:12:26,258 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:12:26,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:26,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:26,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:26,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:26,369 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:12:26,369 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/uautomizer/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:12:26,372 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:12:26,372 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:12:26,388 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:12:26,388 INFO L446 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_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:12:26,392 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:12:26,392 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:12:26,408 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:12:26,409 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/uautomizer/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:12:26,415 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:12:26,415 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4e82b10e-a2ed-4785-b071-a7befe782d7c/bin-2019/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:12:26,434 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:12:26,435 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:12:26,454 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:12:26,455 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:12:26,455 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:12:26,456 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:12:26,456 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:12:26,456 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:12:26,456 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:12:26,456 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:12:26,456 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:12:26,456 INFO L131 ssoRankerPreferences]: Filename of dumped script: Log_true-termination_true-no-overflow.c_Iteration5_Loop [2018-10-27 06:12:26,456 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:12:26,456 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:12:26,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:26,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:26,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:26,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:26,556 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:12:26,556 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:12:26,556 INFO L122 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 [2018-10-27 06:12:26,557 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:12:26,557 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:12:26,557 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:12:26,557 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:12:26,558 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:12:26,558 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:12:26,561 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:12:26,562 INFO L122 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 [2018-10-27 06:12:26,565 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:12:26,565 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:12:26,565 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:12:26,566 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:12:26,566 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:12:26,566 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:12:26,566 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:12:26,568 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:12:26,573 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-10-27 06:12:26,573 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-10-27 06:12:26,573 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:12:26,573 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-10-27 06:12:26,574 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:12:26,574 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0) = 1*ULTIMATE.start_main_~xtmp~0 Supporting invariants [] [2018-10-27 06:12:26,574 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-10-27 06:12:26,622 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:12:26,630 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:12:26,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:12:26,634 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:12:26,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:12:26,635 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 [2018-10-27 06:12:26,635 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-10-27 06:12:26,646 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 28 states and 33 transitions. Complement of second has 5 states. [2018-10-27 06:12:26,647 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 [2018-10-27 06:12:26,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-10-27 06:12:26,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-10-27 06:12:26,647 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 11 letters. Loop has 2 letters. [2018-10-27 06:12:26,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:12:26,647 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-10-27 06:12:26,656 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:26,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:12:26,663 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:12:26,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:12:26,668 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:12:26,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:12:26,668 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 [2018-10-27 06:12:26,668 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-10-27 06:12:26,680 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 28 states and 33 transitions. Complement of second has 5 states. [2018-10-27 06:12:26,681 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 [2018-10-27 06:12:26,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-10-27 06:12:26,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-10-27 06:12:26,681 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 11 letters. Loop has 2 letters. [2018-10-27 06:12:26,681 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:12:26,681 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-10-27 06:12:26,706 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:26,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:12:26,713 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:12:26,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:12:26,716 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:12:26,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:12:26,717 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 [2018-10-27 06:12:26,717 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-10-27 06:12:26,726 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 28 states and 34 transitions. Complement of second has 4 states. [2018-10-27 06:12:26,726 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 [2018-10-27 06:12:26,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-10-27 06:12:26,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2018-10-27 06:12:26,727 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 11 letters. Loop has 2 letters. [2018-10-27 06:12:26,727 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:12:26,727 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 13 letters. Loop has 2 letters. [2018-10-27 06:12:26,728 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:12:26,728 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 11 letters. Loop has 4 letters. [2018-10-27 06:12:26,728 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:12:26,728 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 34 transitions. [2018-10-27 06:12:26,729 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-10-27 06:12:26,730 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 0 states and 0 transitions. [2018-10-27 06:12:26,731 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-10-27 06:12:26,731 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-10-27 06:12:26,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-10-27 06:12:26,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-10-27 06:12:26,732 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:12:26,732 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:12:26,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 06:12:26,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-27 06:12:26,732 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 4 states. [2018-10-27 06:12:26,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:12:26,732 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-10-27 06:12:26,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 06:12:26,733 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-10-27 06:12:26,733 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-10-27 06:12:26,733 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 06:12:26,733 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-10-27 06:12:26,733 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-10-27 06:12:26,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-10-27 06:12:26,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-10-27 06:12:26,733 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:12:26,733 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:12:26,734 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:12:26,734 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-10-27 06:12:26,734 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-10-27 06:12:26,734 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-10-27 06:12:26,734 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-10-27 06:12:26,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.10 06:12:26 BoogieIcfgContainer [2018-10-27 06:12:26,739 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-10-27 06:12:26,739 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 06:12:26,740 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 06:12:26,740 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 06:12:26,740 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:12:23" (3/4) ... [2018-10-27 06:12:26,743 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-27 06:12:26,743 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 06:12:26,743 INFO L168 Benchmark]: Toolchain (without parser) took 3669.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 955.8 MB in the beginning and 905.1 MB in the end (delta: 50.7 MB). Peak memory consumption was 201.7 MB. Max. memory is 11.5 GB. [2018-10-27 06:12:26,744 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:12:26,744 INFO L168 Benchmark]: CACSL2BoogieTranslator took 157.88 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 943.6 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. [2018-10-27 06:12:26,744 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.57 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:12:26,745 INFO L168 Benchmark]: Boogie Preprocessor took 16.47 ms. Allocated memory is still 1.0 GB. Free memory was 943.6 MB in the beginning and 940.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 06:12:26,745 INFO L168 Benchmark]: RCFGBuilder took 271.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -200.2 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2018-10-27 06:12:26,745 INFO L168 Benchmark]: BuchiAutomizer took 3191.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 905.1 MB in the end (delta: 236.0 MB). Peak memory consumption was 236.0 MB. Max. memory is 11.5 GB. [2018-10-27 06:12:26,746 INFO L168 Benchmark]: Witness Printer took 3.18 ms. Allocated memory is still 1.2 GB. Free memory is still 905.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:12:26,748 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 157.88 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 943.6 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.57 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.47 ms. Allocated memory is still 1.0 GB. Free memory was 943.6 MB in the beginning and 940.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 271.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -200.2 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3191.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 905.1 MB in the end (delta: 236.0 MB). Peak memory consumption was 236.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.18 ms. Allocated memory is still 1.2 GB. Free memory is still 905.1 MB. There was no memory consumed. 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 6 terminating modules (3 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function xtmp and consists of 3 locations. One nondeterministic module has affine ranking function xtmp and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 2.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 57 SDtfs, 41 SDslu, 16 SDs, 0 SdLazy, 35 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax169 hnf99 lsp39 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...