./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.15_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2bba653f-4a37-4399-a640-ba4f75e702a9/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2bba653f-4a37-4399-a640-ba4f75e702a9/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2bba653f-4a37-4399-a640-ba4f75e702a9/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2bba653f-4a37-4399-a640-ba4f75e702a9/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.15_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2bba653f-4a37-4399-a640-ba4f75e702a9/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2bba653f-4a37-4399-a640-ba4f75e702a9/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 28b8f223b97939bdb3ffe1e6bb25bd5d633f35c4 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 05:15:27,447 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 05:15:27,448 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 05:15:27,454 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 05:15:27,454 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 05:15:27,454 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 05:15:27,455 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 05:15:27,456 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 05:15:27,457 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 05:15:27,457 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 05:15:27,457 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 05:15:27,458 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 05:15:27,458 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 05:15:27,459 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 05:15:27,459 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 05:15:27,460 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 05:15:27,460 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 05:15:27,461 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 05:15:27,462 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 05:15:27,463 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 05:15:27,463 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 05:15:27,464 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 05:15:27,465 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 05:15:27,465 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 05:15:27,465 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 05:15:27,466 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 05:15:27,466 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 05:15:27,467 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 05:15:27,467 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 05:15:27,468 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 05:15:27,468 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 05:15:27,468 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 05:15:27,468 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 05:15:27,468 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 05:15:27,469 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 05:15:27,469 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 05:15:27,469 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2bba653f-4a37-4399-a640-ba4f75e702a9/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-09 05:15:27,477 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 05:15:27,477 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 05:15:27,478 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 05:15:27,478 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 05:15:27,478 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 05:15:27,478 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-09 05:15:27,478 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-09 05:15:27,478 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-09 05:15:27,478 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-09 05:15:27,478 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-09 05:15:27,478 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-09 05:15:27,478 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 05:15:27,478 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 05:15:27,478 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 05:15:27,479 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 05:15:27,479 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-09 05:15:27,479 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-09 05:15:27,479 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-09 05:15:27,479 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 05:15:27,479 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-09 05:15:27,479 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 05:15:27,479 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-09 05:15:27,479 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 05:15:27,479 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 05:15:27,479 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-09 05:15:27,479 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 05:15:27,480 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 05:15:27,480 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-09 05:15:27,480 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-09 05:15:27,480 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_2bba653f-4a37-4399-a640-ba4f75e702a9/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 -> 28b8f223b97939bdb3ffe1e6bb25bd5d633f35c4 [2018-12-09 05:15:27,498 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 05:15:27,507 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 05:15:27,509 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 05:15:27,510 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 05:15:27,511 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 05:15:27,511 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2bba653f-4a37-4399-a640-ba4f75e702a9/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/b.15_true-termination_true-no-overflow.c [2018-12-09 05:15:27,554 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2bba653f-4a37-4399-a640-ba4f75e702a9/bin-2019/uautomizer/data/cda55ee32/4afef6dae31a4b14958c2ae092289e0f/FLAG1666e1eaa [2018-12-09 05:15:27,969 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 05:15:27,969 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2bba653f-4a37-4399-a640-ba4f75e702a9/sv-benchmarks/c/termination-restricted-15/b.15_true-termination_true-no-overflow.c [2018-12-09 05:15:27,972 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2bba653f-4a37-4399-a640-ba4f75e702a9/bin-2019/uautomizer/data/cda55ee32/4afef6dae31a4b14958c2ae092289e0f/FLAG1666e1eaa [2018-12-09 05:15:27,980 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2bba653f-4a37-4399-a640-ba4f75e702a9/bin-2019/uautomizer/data/cda55ee32/4afef6dae31a4b14958c2ae092289e0f [2018-12-09 05:15:27,982 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 05:15:27,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 05:15:27,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 05:15:27,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 05:15:27,986 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 05:15:27,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:15:27" (1/1) ... [2018-12-09 05:15:27,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@489644d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:15:27, skipping insertion in model container [2018-12-09 05:15:27,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:15:27" (1/1) ... [2018-12-09 05:15:27,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 05:15:28,001 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 05:15:28,083 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 05:15:28,086 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 05:15:28,094 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 05:15:28,103 INFO L195 MainTranslator]: Completed translation [2018-12-09 05:15:28,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:15:28 WrapperNode [2018-12-09 05:15:28,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 05:15:28,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 05:15:28,104 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 05:15:28,104 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 05:15:28,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:15:28" (1/1) ... [2018-12-09 05:15:28,112 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:15:28" (1/1) ... [2018-12-09 05:15:28,122 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 05:15:28,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 05:15:28,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 05:15:28,123 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 05:15:28,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:15:28" (1/1) ... [2018-12-09 05:15:28,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:15:28" (1/1) ... [2018-12-09 05:15:28,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:15:28" (1/1) ... [2018-12-09 05:15:28,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:15:28" (1/1) ... [2018-12-09 05:15:28,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:15:28" (1/1) ... [2018-12-09 05:15:28,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:15:28" (1/1) ... [2018-12-09 05:15:28,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:15:28" (1/1) ... [2018-12-09 05:15:28,133 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 05:15:28,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 05:15:28,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 05:15:28,134 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 05:15:28,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:15:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2bba653f-4a37-4399-a640-ba4f75e702a9/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 [2018-12-09 05:15:28,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 05:15:28,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 05:15:28,268 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 05:15:28,268 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 05:15:28,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:15:28 BoogieIcfgContainer [2018-12-09 05:15:28,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 05:15:28,269 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-09 05:15:28,269 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-09 05:15:28,271 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-09 05:15:28,272 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 05:15:28,272 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.12 05:15:27" (1/3) ... [2018-12-09 05:15:28,272 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@8027dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 05:15:28, skipping insertion in model container [2018-12-09 05:15:28,272 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 05:15:28,272 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:15:28" (2/3) ... [2018-12-09 05:15:28,273 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@8027dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 05:15:28, skipping insertion in model container [2018-12-09 05:15:28,273 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 05:15:28,273 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:15:28" (3/3) ... [2018-12-09 05:15:28,274 INFO L375 chiAutomizerObserver]: Analyzing ICFG b.15_true-termination_true-no-overflow.c [2018-12-09 05:15:28,306 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 05:15:28,306 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-09 05:15:28,306 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-09 05:15:28,306 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-09 05:15:28,306 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 05:15:28,306 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 05:15:28,306 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-09 05:15:28,306 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 05:15:28,306 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-09 05:15:28,315 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-12-09 05:15:28,327 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-09 05:15:28,327 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 05:15:28,327 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 05:15:28,331 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-09 05:15:28,331 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-09 05:15:28,331 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-09 05:15:28,331 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-12-09 05:15:28,332 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-09 05:15:28,332 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 05:15:28,332 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 05:15:28,332 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-09 05:15:28,332 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-09 05:15:28,337 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 3#L13-3true [2018-12-09 05:15:28,337 INFO L796 eck$LassoCheckResult]: Loop: 3#L13-3true assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 6#L13-2true assume !(main_~y~0 > main_~z~0); 3#L13-3true [2018-12-09 05:15:28,340 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:15:28,340 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-12-09 05:15:28,342 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:15:28,342 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:15:28,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:15:28,375 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:15:28,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:15:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:15:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:15:28,400 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:15:28,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1288, now seen corresponding path program 1 times [2018-12-09 05:15:28,400 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:15:28,400 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:15:28,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:15:28,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:15:28,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:15:28,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:15:28,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:15:28,446 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 05:15:28,446 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-12-09 05:15:28,449 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-09 05:15:28,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 05:15:28,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 05:15:28,459 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2018-12-09 05:15:28,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 05:15:28,471 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2018-12-09 05:15:28,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 05:15:28,472 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2018-12-09 05:15:28,473 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-09 05:15:28,475 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 4 states and 5 transitions. [2018-12-09 05:15:28,475 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-12-09 05:15:28,476 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-12-09 05:15:28,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 5 transitions. [2018-12-09 05:15:28,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-09 05:15:28,476 INFO L705 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2018-12-09 05:15:28,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 5 transitions. [2018-12-09 05:15:28,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2018-12-09 05:15:28,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 05:15:28,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2018-12-09 05:15:28,493 INFO L728 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2018-12-09 05:15:28,493 INFO L608 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2018-12-09 05:15:28,493 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-09 05:15:28,493 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 5 transitions. [2018-12-09 05:15:28,493 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-09 05:15:28,493 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 05:15:28,493 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 05:15:28,494 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-09 05:15:28,494 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-09 05:15:28,494 INFO L794 eck$LassoCheckResult]: Stem: 26#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 24#L13-3 [2018-12-09 05:15:28,494 INFO L796 eck$LassoCheckResult]: Loop: 24#L13-3 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 25#L13-2 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 27#L13-2 assume !(main_~y~0 > main_~z~0); 24#L13-3 [2018-12-09 05:15:28,494 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:15:28,494 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2018-12-09 05:15:28,495 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:15:28,495 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:15:28,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:15:28,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:15:28,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:15:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:15:28,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:15:28,501 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:15:28,501 INFO L82 PathProgramCache]: Analyzing trace with hash 40007, now seen corresponding path program 1 times [2018-12-09 05:15:28,501 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:15:28,501 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:15:28,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:15:28,502 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 05:15:28,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:15:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:15:28,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:15:28,509 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:15:28,509 INFO L82 PathProgramCache]: Analyzing trace with hash 963528, now seen corresponding path program 1 times [2018-12-09 05:15:28,509 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:15:28,509 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:15:28,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:15:28,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:15:28,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:15:28,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:15:28,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:15:28,566 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 05:15:28,567 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 05:15:28,567 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 05:15:28,567 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 05:15:28,568 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 05:15:28,568 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:15:28,568 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 05:15:28,568 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 05:15:28,568 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.15_true-termination_true-no-overflow.c_Iteration2_Loop [2018-12-09 05:15:28,568 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 05:15:28,568 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 05:15:28,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:15:28,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:15:28,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:15:28,663 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 05:15:28,664 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2bba653f-4a37-4399-a640-ba4f75e702a9/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 [2018-12-09 05:15:28,667 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:15:28,667 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:15:28,685 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:15:28,686 INFO L448 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_2bba653f-4a37-4399-a640-ba4f75e702a9/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 [2018-12-09 05:15:28,688 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:15:28,688 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:15:28,703 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:15:28,703 INFO L448 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_2bba653f-4a37-4399-a640-ba4f75e702a9/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 [2018-12-09 05:15:28,706 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:15:28,706 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2bba653f-4a37-4399-a640-ba4f75e702a9/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 [2018-12-09 05:15:28,723 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 05:15:28,723 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:15:28,949 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 05:15:28,950 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 05:15:28,951 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 05:15:28,951 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 05:15:28,951 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 05:15:28,951 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 05:15:28,951 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:15:28,951 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 05:15:28,951 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 05:15:28,951 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.15_true-termination_true-no-overflow.c_Iteration2_Loop [2018-12-09 05:15:28,951 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 05:15:28,951 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 05:15:28,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:15:28,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:15:28,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:15:29,010 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 05:15:29,013 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 05:15:29,014 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 [2018-12-09 05:15:29,015 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:15:29,015 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:15:29,015 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:15:29,015 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:15:29,017 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:15:29,018 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:15:29,021 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:15:29,022 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 [2018-12-09 05:15:29,022 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:15:29,022 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:15:29,022 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:15:29,022 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:15:29,023 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:15:29,023 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:15:29,028 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:15:29,028 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 [2018-12-09 05:15:29,028 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:15:29,029 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 05:15:29,029 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:15:29,029 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:15:29,030 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:15:29,030 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 05:15:29,030 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 05:15:29,036 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 05:15:29,042 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-09 05:15:29,042 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-09 05:15:29,043 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 05:15:29,043 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-09 05:15:29,043 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 05:15:29,044 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-12-09 05:15:29,044 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-09 05:15:29,064 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:15:29,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:15:29,070 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:15:29,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:15:29,075 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:15:29,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:15:29,095 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 [2018-12-09 05:15:29,095 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2 Second operand 4 states. [2018-12-09 05:15:29,118 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 12 states and 17 transitions. Complement of second has 6 states. [2018-12-09 05:15:29,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-09 05:15:29,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 05:15:29,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2018-12-09 05:15:29,120 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 3 letters. [2018-12-09 05:15:29,121 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:15:29,121 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. [2018-12-09 05:15:29,121 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:15:29,121 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 6 letters. [2018-12-09 05:15:29,121 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:15:29,121 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2018-12-09 05:15:29,122 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-09 05:15:29,122 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 8 states and 11 transitions. [2018-12-09 05:15:29,123 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-12-09 05:15:29,123 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-12-09 05:15:29,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2018-12-09 05:15:29,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 05:15:29,123 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-12-09 05:15:29,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2018-12-09 05:15:29,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-12-09 05:15:29,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-12-09 05:15:29,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2018-12-09 05:15:29,124 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-12-09 05:15:29,124 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-12-09 05:15:29,124 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-09 05:15:29,124 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2018-12-09 05:15:29,124 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-09 05:15:29,124 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 05:15:29,124 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 05:15:29,124 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2018-12-09 05:15:29,124 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-09 05:15:29,124 INFO L794 eck$LassoCheckResult]: Stem: 79#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 76#L13-3 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 77#L13-2 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 81#L13-2 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 80#L13-2 [2018-12-09 05:15:29,125 INFO L796 eck$LassoCheckResult]: Loop: 80#L13-2 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 80#L13-2 [2018-12-09 05:15:29,125 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:15:29,125 INFO L82 PathProgramCache]: Analyzing trace with hash 963530, now seen corresponding path program 1 times [2018-12-09 05:15:29,125 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:15:29,125 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:15:29,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:15:29,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:15:29,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:15:29,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:15:29,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:15:29,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:15:29,133 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2018-12-09 05:15:29,133 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:15:29,133 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:15:29,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:15:29,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:15:29,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:15:29,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:15:29,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:15:29,137 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:15:29,137 INFO L82 PathProgramCache]: Analyzing trace with hash 29869449, now seen corresponding path program 2 times [2018-12-09 05:15:29,137 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:15:29,137 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:15:29,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:15:29,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:15:29,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:15:29,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:15:29,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:15:29,156 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 05:15:29,156 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 05:15:29,157 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 05:15:29,157 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 05:15:29,157 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 05:15:29,157 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:15:29,157 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 05:15:29,157 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 05:15:29,157 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.15_true-termination_true-no-overflow.c_Iteration3_Loop [2018-12-09 05:15:29,157 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 05:15:29,157 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 05:15:29,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:15:29,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:15:29,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:15:29,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:15:29,195 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 05:15:29,195 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2bba653f-4a37-4399-a640-ba4f75e702a9/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 [2018-12-09 05:15:29,198 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:15:29,198 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:15:29,223 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:15:29,223 INFO L448 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_2bba653f-4a37-4399-a640-ba4f75e702a9/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 [2018-12-09 05:15:29,225 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:15:29,226 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2bba653f-4a37-4399-a640-ba4f75e702a9/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 [2018-12-09 05:15:29,242 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 05:15:29,242 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:15:29,252 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:15:29,252 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=-4}, {ULTIMATE.start_main_~x~0=-3}, {ULTIMATE.start_main_~x~0=6}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2bba653f-4a37-4399-a640-ba4f75e702a9/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 [2018-12-09 05:15:29,267 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:15:29,267 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:15:29,291 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:15:29,291 INFO L448 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_2bba653f-4a37-4399-a640-ba4f75e702a9/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 [2018-12-09 05:15:29,294 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:15:29,294 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2bba653f-4a37-4399-a640-ba4f75e702a9/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 [2018-12-09 05:15:29,310 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 05:15:29,310 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:15:29,441 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 05:15:29,442 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 05:15:29,442 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 05:15:29,442 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 05:15:29,442 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 05:15:29,442 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 05:15:29,442 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:15:29,442 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 05:15:29,442 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 05:15:29,442 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.15_true-termination_true-no-overflow.c_Iteration3_Loop [2018-12-09 05:15:29,442 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 05:15:29,442 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 05:15:29,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:15:29,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:15:29,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:15:29,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:15:29,497 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 05:15:29,497 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 05:15:29,497 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 [2018-12-09 05:15:29,498 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:15:29,498 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:15:29,498 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:15:29,498 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:15:29,499 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:15:29,499 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:15:29,501 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:15:29,502 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 [2018-12-09 05:15:29,502 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:15:29,502 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 05:15:29,502 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:15:29,503 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:15:29,503 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:15:29,503 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 05:15:29,503 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 05:15:29,505 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:15:29,506 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 [2018-12-09 05:15:29,506 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:15:29,506 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:15:29,506 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:15:29,506 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:15:29,507 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:15:29,508 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:15:29,510 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:15:29,510 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 [2018-12-09 05:15:29,511 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:15:29,511 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 05:15:29,511 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:15:29,511 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:15:29,511 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:15:29,512 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 05:15:29,512 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 05:15:29,514 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 05:15:29,516 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-09 05:15:29,516 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-09 05:15:29,516 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 05:15:29,516 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-09 05:15:29,516 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 05:15:29,517 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~y~0 - 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-12-09 05:15:29,517 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-09 05:15:29,527 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:15:29,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:15:29,531 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:15:29,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:15:29,534 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:15:29,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:15:29,535 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 [2018-12-09 05:15:29,535 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 2 states. [2018-12-09 05:15:29,541 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 11 states and 15 transitions. Complement of second has 4 states. [2018-12-09 05:15:29,541 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 [2018-12-09 05:15:29,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-09 05:15:29,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-12-09 05:15:29,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 1 letters. [2018-12-09 05:15:29,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:15:29,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 1 letters. [2018-12-09 05:15:29,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:15:29,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2018-12-09 05:15:29,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:15:29,543 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 15 transitions. [2018-12-09 05:15:29,543 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-09 05:15:29,543 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2018-12-09 05:15:29,543 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-09 05:15:29,543 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-09 05:15:29,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-09 05:15:29,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-09 05:15:29,544 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 05:15:29,544 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 05:15:29,544 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 05:15:29,544 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-09 05:15:29,544 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-09 05:15:29,544 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-09 05:15:29,544 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-09 05:15:29,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.12 05:15:29 BoogieIcfgContainer [2018-12-09 05:15:29,548 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-09 05:15:29,548 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 05:15:29,548 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 05:15:29,549 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 05:15:29,549 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:15:28" (3/4) ... [2018-12-09 05:15:29,551 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 05:15:29,551 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 05:15:29,552 INFO L168 Benchmark]: Toolchain (without parser) took 1569.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 957.1 MB in the beginning and 936.0 MB in the end (delta: 21.1 MB). Peak memory consumption was 148.5 MB. Max. memory is 11.5 GB. [2018-12-09 05:15:29,553 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 05:15:29,553 INFO L168 Benchmark]: CACSL2BoogieTranslator took 120.09 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 05:15:29,554 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.07 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 05:15:29,554 INFO L168 Benchmark]: Boogie Preprocessor took 10.92 ms. Allocated memory is still 1.0 GB. Free memory was 946.3 MB in the beginning and 941.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 05:15:29,555 INFO L168 Benchmark]: RCFGBuilder took 134.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -166.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-12-09 05:15:29,555 INFO L168 Benchmark]: BuchiAutomizer took 1279.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 936.0 MB in the end (delta: 171.0 MB). Peak memory consumption was 171.0 MB. Max. memory is 11.5 GB. [2018-12-09 05:15:29,556 INFO L168 Benchmark]: Witness Printer took 2.73 ms. Allocated memory is still 1.2 GB. Free memory is still 936.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 05:15:29,558 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 120.09 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.07 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.92 ms. Allocated memory is still 1.0 GB. Free memory was 946.3 MB in the beginning and 941.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 134.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -166.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1279.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 936.0 MB in the end (delta: 171.0 MB). Peak memory consumption was 171.0 MB. Max. memory is 11.5 GB. * Witness Printer took 2.73 ms. Allocated memory is still 1.2 GB. Free memory is still 936.0 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x + -1 * z and consists of 4 locations. One deterministic module has affine ranking function y + -1 * z and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 11 SDtfs, 6 SDslu, 3 SDs, 0 SdLazy, 18 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax167 hnf98 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf92 smp92 dnf100 smp100 tf110 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 7ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...