./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/seq_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ba2dd8f2-5007-40d9-8526-8ac93616c2f4/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ba2dd8f2-5007-40d9-8526-8ac93616c2f4/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ba2dd8f2-5007-40d9-8526-8ac93616c2f4/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ba2dd8f2-5007-40d9-8526-8ac93616c2f4/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/seq_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ba2dd8f2-5007-40d9-8526-8ac93616c2f4/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ba2dd8f2-5007-40d9-8526-8ac93616c2f4/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 32bit --witnessprinter.graph.data.programhash 63d818ac17d423e56496424f9fa44743b17c8897 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 10:05:31,238 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 10:05:31,239 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 10:05:31,245 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 10:05:31,245 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 10:05:31,246 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 10:05:31,246 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 10:05:31,247 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 10:05:31,248 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 10:05:31,248 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 10:05:31,249 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 10:05:31,249 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 10:05:31,249 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 10:05:31,250 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 10:05:31,250 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 10:05:31,251 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 10:05:31,251 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 10:05:31,252 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 10:05:31,253 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 10:05:31,254 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 10:05:31,254 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 10:05:31,255 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 10:05:31,256 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 10:05:31,256 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 10:05:31,256 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 10:05:31,256 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 10:05:31,257 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 10:05:31,257 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 10:05:31,258 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 10:05:31,258 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 10:05:31,258 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 10:05:31,259 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 10:05:31,259 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 10:05:31,259 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 10:05:31,259 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 10:05:31,260 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 10:05:31,260 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ba2dd8f2-5007-40d9-8526-8ac93616c2f4/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-08 10:05:31,270 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 10:05:31,271 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 10:05:31,272 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 10:05:31,272 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 10:05:31,272 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 10:05:31,272 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-08 10:05:31,272 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-08 10:05:31,272 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-08 10:05:31,272 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-08 10:05:31,273 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-08 10:05:31,273 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-08 10:05:31,273 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 10:05:31,273 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 10:05:31,273 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 10:05:31,273 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 10:05:31,273 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 10:05:31,274 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 10:05:31,274 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-08 10:05:31,274 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-08 10:05:31,274 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-08 10:05:31,274 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 10:05:31,274 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 10:05:31,274 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-08 10:05:31,274 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 10:05:31,275 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-08 10:05:31,275 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 10:05:31,275 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 10:05:31,275 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-08 10:05:31,275 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 10:05:31,275 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 10:05:31,275 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-08 10:05:31,276 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-08 10:05:31,276 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_ba2dd8f2-5007-40d9-8526-8ac93616c2f4/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63d818ac17d423e56496424f9fa44743b17c8897 [2018-12-08 10:05:31,297 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 10:05:31,305 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 10:05:31,308 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 10:05:31,309 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 10:05:31,310 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 10:05:31,310 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ba2dd8f2-5007-40d9-8526-8ac93616c2f4/bin-2019/uautomizer/../../sv-benchmarks/c/loop-invgen/seq_true-unreach-call_true-termination.i [2018-12-08 10:05:31,351 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ba2dd8f2-5007-40d9-8526-8ac93616c2f4/bin-2019/uautomizer/data/e244c3a96/da24460501444b53897b7a2e643b4154/FLAG40b6242f7 [2018-12-08 10:05:31,690 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 10:05:31,691 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ba2dd8f2-5007-40d9-8526-8ac93616c2f4/sv-benchmarks/c/loop-invgen/seq_true-unreach-call_true-termination.i [2018-12-08 10:05:31,695 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ba2dd8f2-5007-40d9-8526-8ac93616c2f4/bin-2019/uautomizer/data/e244c3a96/da24460501444b53897b7a2e643b4154/FLAG40b6242f7 [2018-12-08 10:05:32,089 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ba2dd8f2-5007-40d9-8526-8ac93616c2f4/bin-2019/uautomizer/data/e244c3a96/da24460501444b53897b7a2e643b4154 [2018-12-08 10:05:32,091 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 10:05:32,092 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 10:05:32,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 10:05:32,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 10:05:32,095 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 10:05:32,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 10:05:32" (1/1) ... [2018-12-08 10:05:32,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@415fef0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:05:32, skipping insertion in model container [2018-12-08 10:05:32,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 10:05:32" (1/1) ... [2018-12-08 10:05:32,102 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 10:05:32,111 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 10:05:32,195 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 10:05:32,197 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 10:05:32,206 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 10:05:32,214 INFO L195 MainTranslator]: Completed translation [2018-12-08 10:05:32,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:05:32 WrapperNode [2018-12-08 10:05:32,214 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 10:05:32,215 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 10:05:32,215 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 10:05:32,215 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 10:05:32,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:05:32" (1/1) ... [2018-12-08 10:05:32,223 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:05:32" (1/1) ... [2018-12-08 10:05:32,233 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 10:05:32,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 10:05:32,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 10:05:32,233 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 10:05:32,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:05:32" (1/1) ... [2018-12-08 10:05:32,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:05:32" (1/1) ... [2018-12-08 10:05:32,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:05:32" (1/1) ... [2018-12-08 10:05:32,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:05:32" (1/1) ... [2018-12-08 10:05:32,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:05:32" (1/1) ... [2018-12-08 10:05:32,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:05:32" (1/1) ... [2018-12-08 10:05:32,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:05:32" (1/1) ... [2018-12-08 10:05:32,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 10:05:32,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 10:05:32,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 10:05:32,244 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 10:05:32,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:05:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ba2dd8f2-5007-40d9-8526-8ac93616c2f4/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 [2018-12-08 10:05:32,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 10:05:32,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 10:05:32,397 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 10:05:32,397 INFO L280 CfgBuilder]: Removed 9 assue(true) statements. [2018-12-08 10:05:32,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:05:32 BoogieIcfgContainer [2018-12-08 10:05:32,398 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 10:05:32,398 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-08 10:05:32,398 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-08 10:05:32,400 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-08 10:05:32,401 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 10:05:32,401 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.12 10:05:32" (1/3) ... [2018-12-08 10:05:32,401 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4c7ff276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 10:05:32, skipping insertion in model container [2018-12-08 10:05:32,402 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 10:05:32,402 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:05:32" (2/3) ... [2018-12-08 10:05:32,402 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4c7ff276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 10:05:32, skipping insertion in model container [2018-12-08 10:05:32,402 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 10:05:32,402 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:05:32" (3/3) ... [2018-12-08 10:05:32,403 INFO L375 chiAutomizerObserver]: Analyzing ICFG seq_true-unreach-call_true-termination.i [2018-12-08 10:05:32,435 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 10:05:32,436 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-08 10:05:32,436 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-08 10:05:32,436 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-08 10:05:32,436 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 10:05:32,436 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 10:05:32,436 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-08 10:05:32,436 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 10:05:32,436 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-08 10:05:32,444 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-12-08 10:05:32,456 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2018-12-08 10:05:32,456 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 10:05:32,457 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 10:05:32,460 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-08 10:05:32,460 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-08 10:05:32,461 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-08 10:05:32,461 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-12-08 10:05:32,461 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2018-12-08 10:05:32,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 10:05:32,462 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 10:05:32,462 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-08 10:05:32,462 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-08 10:05:32,466 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~post3, main_#t~post4, main_#t~post5, main_#t~post6, main_#t~post7, main_#t~post8, main_~n0~0, main_~n1~0, main_~i0~0, main_~k~0, main_~i1~0, main_~j1~0;havoc main_~n0~0;havoc main_~n1~0;main_~i0~0 := 0;main_~k~0 := 0;main_~n0~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~n1~0 := main_#t~nondet2;havoc main_#t~nondet2; 6#L16true assume !!(-1000000 <= main_~n0~0 && main_~n0~0 < 1000000); 8#L17true assume !!(-1000000 <= main_~n1~0 && main_~n1~0 < 1000000); 7#L18-2true [2018-12-08 10:05:32,467 INFO L796 eck$LassoCheckResult]: Loop: 7#L18-2true assume !!(main_~i0~0 < main_~n0~0);main_#t~post3 := main_~i0~0;main_~i0~0 := 1 + main_#t~post3;havoc main_#t~post3;main_#t~post4 := main_~k~0;main_~k~0 := 1 + main_#t~post4;havoc main_#t~post4; 7#L18-2true [2018-12-08 10:05:32,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:05:32,470 INFO L82 PathProgramCache]: Analyzing trace with hash 30949, now seen corresponding path program 1 times [2018-12-08 10:05:32,471 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 10:05:32,472 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 10:05:32,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:05:32,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 10:05:32,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:05:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:05:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:05:32,532 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:05:32,532 INFO L82 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2018-12-08 10:05:32,532 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 10:05:32,532 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 10:05:32,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:05:32,533 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 10:05:32,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:05:32,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:05:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:05:32,538 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:05:32,538 INFO L82 PathProgramCache]: Analyzing trace with hash 959439, now seen corresponding path program 1 times [2018-12-08 10:05:32,538 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 10:05:32,538 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 10:05:32,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:05:32,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 10:05:32,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:05:32,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:05:32,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:05:32,571 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 10:05:32,572 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 10:05:32,572 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 10:05:32,572 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 10:05:32,572 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 10:05:32,572 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 10:05:32,572 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 10:05:32,573 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 10:05:32,573 INFO L131 ssoRankerPreferences]: Filename of dumped script: seq_true-unreach-call_true-termination.i_Iteration1_Loop [2018-12-08 10:05:32,573 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 10:05:32,573 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 10:05:32,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:05:32,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:05:32,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:05:32,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:05:32,637 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 10:05:32,638 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ba2dd8f2-5007-40d9-8526-8ac93616c2f4/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 [2018-12-08 10:05:32,643 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 10:05:32,643 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ba2dd8f2-5007-40d9-8526-8ac93616c2f4/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 [2018-12-08 10:05:32,660 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 10:05:32,660 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 10:05:32,771 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 10:05:32,772 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 10:05:32,772 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 10:05:32,773 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 10:05:32,773 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 10:05:32,773 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 10:05:32,773 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 10:05:32,773 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 10:05:32,773 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 10:05:32,773 INFO L131 ssoRankerPreferences]: Filename of dumped script: seq_true-unreach-call_true-termination.i_Iteration1_Loop [2018-12-08 10:05:32,773 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 10:05:32,773 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 10:05:32,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:05:32,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:05:32,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:05:32,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:05:32,810 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 10:05:32,813 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 10:05:32,814 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 [2018-12-08 10:05:32,815 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:05:32,815 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 10:05:32,816 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:05:32,816 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:05:32,816 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:05:32,817 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 10:05:32,817 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 10:05:32,822 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 10:05:32,825 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-08 10:05:32,826 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-08 10:05:32,827 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 10:05:32,827 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-08 10:05:32,827 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 10:05:32,828 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i0~0, ULTIMATE.start_main_~n0~0) = -1*ULTIMATE.start_main_~i0~0 + 1*ULTIMATE.start_main_~n0~0 Supporting invariants [] [2018-12-08 10:05:32,828 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-08 10:05:32,843 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:05:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 10:05:32,850 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 10:05:32,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 10:05:32,857 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 10:05:32,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 10:05:32,867 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 [2018-12-08 10:05:32,868 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 2 states. [2018-12-08 10:05:32,897 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 2 states. Result 38 states and 54 transitions. Complement of second has 5 states. [2018-12-08 10:05:32,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-08 10:05:32,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-08 10:05:32,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2018-12-08 10:05:32,900 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 3 letters. Loop has 1 letters. [2018-12-08 10:05:32,900 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 10:05:32,901 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 4 letters. Loop has 1 letters. [2018-12-08 10:05:32,901 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 10:05:32,901 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 3 letters. Loop has 2 letters. [2018-12-08 10:05:32,901 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 10:05:32,901 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 54 transitions. [2018-12-08 10:05:32,903 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-08 10:05:32,905 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 11 states and 14 transitions. [2018-12-08 10:05:32,906 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-12-08 10:05:32,906 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2018-12-08 10:05:32,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2018-12-08 10:05:32,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-08 10:05:32,906 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-12-08 10:05:32,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2018-12-08 10:05:32,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-12-08 10:05:32,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-12-08 10:05:32,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2018-12-08 10:05:32,922 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-12-08 10:05:32,922 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-12-08 10:05:32,922 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-08 10:05:32,922 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2018-12-08 10:05:32,922 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-08 10:05:32,922 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 10:05:32,922 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 10:05:32,922 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-12-08 10:05:32,922 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-08 10:05:32,923 INFO L794 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~post3, main_#t~post4, main_#t~post5, main_#t~post6, main_#t~post7, main_#t~post8, main_~n0~0, main_~n1~0, main_~i0~0, main_~k~0, main_~i1~0, main_~j1~0;havoc main_~n0~0;havoc main_~n1~0;main_~i0~0 := 0;main_~k~0 := 0;main_~n0~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~n1~0 := main_#t~nondet2;havoc main_#t~nondet2; 95#L16 assume !!(-1000000 <= main_~n0~0 && main_~n0~0 < 1000000); 96#L17 assume !!(-1000000 <= main_~n1~0 && main_~n1~0 < 1000000); 92#L18-2 assume !(main_~i0~0 < main_~n0~0); 87#L18-3 main_~i1~0 := 0; 88#L23-2 [2018-12-08 10:05:32,923 INFO L796 eck$LassoCheckResult]: Loop: 88#L23-2 assume !!(main_~i1~0 < main_~n1~0);main_#t~post5 := main_~i1~0;main_~i1~0 := 1 + main_#t~post5;havoc main_#t~post5;main_#t~post6 := main_~k~0;main_~k~0 := 1 + main_#t~post6;havoc main_#t~post6; 88#L23-2 [2018-12-08 10:05:32,923 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:05:32,923 INFO L82 PathProgramCache]: Analyzing trace with hash 29742571, now seen corresponding path program 1 times [2018-12-08 10:05:32,923 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 10:05:32,923 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 10:05:32,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:05:32,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 10:05:32,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:05:32,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:05:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:05:32,929 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:05:32,929 INFO L82 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 1 times [2018-12-08 10:05:32,929 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 10:05:32,929 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 10:05:32,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:05:32,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 10:05:32,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:05:32,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:05:32,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:05:32,932 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:05:32,932 INFO L82 PathProgramCache]: Analyzing trace with hash 922019734, now seen corresponding path program 1 times [2018-12-08 10:05:32,932 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 10:05:32,932 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 10:05:32,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:05:32,933 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 10:05:32,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:05:32,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:05:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:05:32,948 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 10:05:32,948 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 10:05:32,948 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 10:05:32,948 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 10:05:32,948 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 10:05:32,949 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 10:05:32,949 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 10:05:32,949 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 10:05:32,949 INFO L131 ssoRankerPreferences]: Filename of dumped script: seq_true-unreach-call_true-termination.i_Iteration2_Loop [2018-12-08 10:05:32,949 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 10:05:32,949 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 10:05:32,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:05:32,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:05:32,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:05:32,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:05:32,983 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 10:05:32,984 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ba2dd8f2-5007-40d9-8526-8ac93616c2f4/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 [2018-12-08 10:05:32,987 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 10:05:32,987 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 10:05:32,991 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 10:05:32,991 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6=0} Honda state: {ULTIMATE.start_main_#t~post6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ba2dd8f2-5007-40d9-8526-8ac93616c2f4/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 [2018-12-08 10:05:33,006 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 10:05:33,007 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ba2dd8f2-5007-40d9-8526-8ac93616c2f4/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 [2018-12-08 10:05:33,022 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 10:05:33,022 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 10:05:33,126 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 10:05:33,127 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 10:05:33,127 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 10:05:33,127 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 10:05:33,127 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 10:05:33,127 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 10:05:33,127 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 10:05:33,127 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 10:05:33,127 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 10:05:33,127 INFO L131 ssoRankerPreferences]: Filename of dumped script: seq_true-unreach-call_true-termination.i_Iteration2_Loop [2018-12-08 10:05:33,127 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 10:05:33,127 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 10:05:33,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:05:33,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:05:33,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:05:33,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:05:33,160 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 10:05:33,160 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 10:05:33,160 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 [2018-12-08 10:05:33,161 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:05:33,161 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 10:05:33,161 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:05:33,161 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:05:33,161 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:05:33,162 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 10:05:33,162 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 10:05:33,164 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 10:05:33,168 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-08 10:05:33,168 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-08 10:05:33,168 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 10:05:33,168 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-08 10:05:33,168 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 10:05:33,168 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i1~0, ULTIMATE.start_main_~n1~0) = -1*ULTIMATE.start_main_~i1~0 + 1*ULTIMATE.start_main_~n1~0 Supporting invariants [] [2018-12-08 10:05:33,168 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-08 10:05:33,187 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:05:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 10:05:33,190 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 10:05:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 10:05:33,193 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 10:05:33,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 10:05:33,193 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 [2018-12-08 10:05:33,194 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 6 Second operand 2 states. [2018-12-08 10:05:33,199 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 6. Second operand 2 states. Result 16 states and 22 transitions. Complement of second has 4 states. [2018-12-08 10:05:33,199 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 [2018-12-08 10:05:33,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-08 10:05:33,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2018-12-08 10:05:33,200 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 5 letters. Loop has 1 letters. [2018-12-08 10:05:33,200 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 10:05:33,200 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 6 letters. Loop has 1 letters. [2018-12-08 10:05:33,200 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 10:05:33,200 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 5 letters. Loop has 2 letters. [2018-12-08 10:05:33,200 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 10:05:33,200 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 22 transitions. [2018-12-08 10:05:33,201 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-08 10:05:33,201 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 12 states and 16 transitions. [2018-12-08 10:05:33,201 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-12-08 10:05:33,201 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2018-12-08 10:05:33,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2018-12-08 10:05:33,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-08 10:05:33,201 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2018-12-08 10:05:33,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2018-12-08 10:05:33,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-12-08 10:05:33,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-08 10:05:33,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2018-12-08 10:05:33,202 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2018-12-08 10:05:33,202 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2018-12-08 10:05:33,202 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-08 10:05:33,202 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2018-12-08 10:05:33,203 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-08 10:05:33,203 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 10:05:33,203 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 10:05:33,203 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 10:05:33,203 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-08 10:05:33,203 INFO L794 eck$LassoCheckResult]: Stem: 157#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~post3, main_#t~post4, main_#t~post5, main_#t~post6, main_#t~post7, main_#t~post8, main_~n0~0, main_~n1~0, main_~i0~0, main_~k~0, main_~i1~0, main_~j1~0;havoc main_~n0~0;havoc main_~n1~0;main_~i0~0 := 0;main_~k~0 := 0;main_~n0~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~n1~0 := main_#t~nondet2;havoc main_#t~nondet2; 158#L16 assume !!(-1000000 <= main_~n0~0 && main_~n0~0 < 1000000); 159#L17 assume !!(-1000000 <= main_~n1~0 && main_~n1~0 < 1000000); 160#L18-2 assume !(main_~i0~0 < main_~n0~0); 151#L18-3 main_~i1~0 := 0; 152#L23-2 assume !(main_~i1~0 < main_~n1~0); 156#L23-3 main_~j1~0 := 0; 153#L28-2 [2018-12-08 10:05:33,203 INFO L796 eck$LassoCheckResult]: Loop: 153#L28-2 assume !!(main_~j1~0 < main_~n0~0 + main_~n1~0);__VERIFIER_assert_#in~cond := (if main_~k~0 > 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 154#L4 assume !(0 == __VERIFIER_assert_~cond); 162#L4-2 main_#t~post7 := main_~j1~0;main_~j1~0 := 1 + main_#t~post7;havoc main_#t~post7;main_#t~post8 := main_~k~0;main_~k~0 := main_#t~post8 - 1;havoc main_#t~post8; 153#L28-2 [2018-12-08 10:05:33,204 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:05:33,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1482159343, now seen corresponding path program 1 times [2018-12-08 10:05:33,204 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 10:05:33,204 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 10:05:33,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:05:33,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 10:05:33,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:05:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:05:33,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:05:33,210 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:05:33,210 INFO L82 PathProgramCache]: Analyzing trace with hash 75696, now seen corresponding path program 1 times [2018-12-08 10:05:33,210 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 10:05:33,210 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 10:05:33,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:05:33,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 10:05:33,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:05:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:05:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:05:33,217 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:05:33,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1549828768, now seen corresponding path program 1 times [2018-12-08 10:05:33,217 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 10:05:33,217 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 10:05:33,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:05:33,217 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 10:05:33,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:05:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 10:05:33,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 10:05:33,245 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 10:05:33,245 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 10:05:33,269 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 10:05:33,269 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 10:05:33,269 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 10:05:33,269 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 10:05:33,269 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 10:05:33,269 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 10:05:33,269 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 10:05:33,269 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 10:05:33,269 INFO L131 ssoRankerPreferences]: Filename of dumped script: seq_true-unreach-call_true-termination.i_Iteration3_Loop [2018-12-08 10:05:33,269 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 10:05:33,269 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 10:05:33,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:05:33,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:05:33,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:05:33,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:05:33,324 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 10:05:33,324 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ba2dd8f2-5007-40d9-8526-8ac93616c2f4/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 [2018-12-08 10:05:33,325 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 10:05:33,326 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ba2dd8f2-5007-40d9-8526-8ac93616c2f4/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 [2018-12-08 10:05:33,351 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 10:05:33,351 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 10:05:35,026 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 10:05:35,027 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 10:05:35,027 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 10:05:35,027 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 10:05:35,027 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 10:05:35,027 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 10:05:35,027 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 10:05:35,028 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 10:05:35,028 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 10:05:35,028 INFO L131 ssoRankerPreferences]: Filename of dumped script: seq_true-unreach-call_true-termination.i_Iteration3_Loop [2018-12-08 10:05:35,028 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 10:05:35,028 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 10:05:35,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:05:35,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:05:35,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:05:35,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:05:35,083 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 10:05:35,083 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 10:05:35,083 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 [2018-12-08 10:05:35,084 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:05:35,084 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 10:05:35,084 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:05:35,084 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:05:35,085 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:05:35,085 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 10:05:35,085 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 10:05:35,088 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 10:05:35,091 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-08 10:05:35,091 INFO L444 ModelExtractionUtils]: 0 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-08 10:05:35,092 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 10:05:35,092 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-08 10:05:35,092 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 10:05:35,092 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n1~0, ULTIMATE.start_main_~j1~0, ULTIMATE.start_main_~n0~0) = 1*ULTIMATE.start_main_~n1~0 - 1*ULTIMATE.start_main_~j1~0 + 1*ULTIMATE.start_main_~n0~0 Supporting invariants [] [2018-12-08 10:05:35,093 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-08 10:05:35,107 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:05:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 10:05:35,112 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 10:05:35,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 10:05:35,116 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 10:05:35,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 10:05:35,124 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-08 10:05:35,124 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2018-12-08 10:05:35,130 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 15 states and 20 transitions. Complement of second has 4 states. [2018-12-08 10:05:35,130 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 [2018-12-08 10:05:35,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-08 10:05:35,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2018-12-08 10:05:35,131 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2018-12-08 10:05:35,131 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 10:05:35,131 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 3 letters. [2018-12-08 10:05:35,131 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 10:05:35,131 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 6 letters. [2018-12-08 10:05:35,131 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 10:05:35,131 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2018-12-08 10:05:35,132 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-08 10:05:35,132 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2018-12-08 10:05:35,132 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-08 10:05:35,133 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-08 10:05:35,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-08 10:05:35,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-08 10:05:35,133 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 10:05:35,133 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 10:05:35,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 10:05:35,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 10:05:35,136 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 4 states. [2018-12-08 10:05:35,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 10:05:35,138 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-12-08 10:05:35,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 10:05:35,138 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-12-08 10:05:35,139 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-08 10:05:35,139 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 10:05:35,139 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-08 10:05:35,139 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-08 10:05:35,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-08 10:05:35,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-08 10:05:35,139 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 10:05:35,139 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 10:05:35,139 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 10:05:35,139 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-08 10:05:35,139 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-08 10:05:35,139 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-08 10:05:35,139 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-08 10:05:35,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.12 10:05:35 BoogieIcfgContainer [2018-12-08 10:05:35,143 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-08 10:05:35,143 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 10:05:35,143 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 10:05:35,144 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 10:05:35,144 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:05:32" (3/4) ... [2018-12-08 10:05:35,146 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 10:05:35,146 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 10:05:35,146 INFO L168 Benchmark]: Toolchain (without parser) took 3054.95 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 956.0 MB in the beginning and 923.9 MB in the end (delta: 32.0 MB). Peak memory consumption was 140.1 MB. Max. memory is 11.5 GB. [2018-12-08 10:05:35,147 INFO L168 Benchmark]: CDTParser took 0.15 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. [2018-12-08 10:05:35,148 INFO L168 Benchmark]: CACSL2BoogieTranslator took 122.03 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 10:05:35,148 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.93 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 10:05:35,148 INFO L168 Benchmark]: Boogie Preprocessor took 11.20 ms. Allocated memory is still 1.0 GB. Free memory was 945.3 MB in the beginning and 939.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 10:05:35,149 INFO L168 Benchmark]: RCFGBuilder took 153.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -153.3 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-12-08 10:05:35,149 INFO L168 Benchmark]: BuchiAutomizer took 2745.08 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 923.9 MB in the end (delta: 169.3 MB). Peak memory consumption was 169.3 MB. Max. memory is 11.5 GB. [2018-12-08 10:05:35,149 INFO L168 Benchmark]: Witness Printer took 2.62 ms. Allocated memory is still 1.1 GB. Free memory is still 923.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 10:05:35,151 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 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 122.03 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.3 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 17.93 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.20 ms. Allocated memory is still 1.0 GB. Free memory was 945.3 MB in the beginning and 939.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 153.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -153.3 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2745.08 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 923.9 MB in the end (delta: 169.3 MB). Peak memory consumption was 169.3 MB. Max. memory is 11.5 GB. * Witness Printer took 2.62 ms. Allocated memory is still 1.1 GB. Free memory is still 923.9 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 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i0 + n0 and consists of 4 locations. One deterministic module has affine ranking function -1 * i1 + n1 and consists of 3 locations. One deterministic module has affine ranking function n1 + -1 * j1 + n0 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 35 SDtfs, 37 SDslu, 13 SDs, 0 SdLazy, 15 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp67 ukn100 mio100 lsp100 div100 bol100 ite112 ukn100 eq164 hnf92 smp85 dnf98 smp100 tf111 neg98 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 13ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...