./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f7e1c1540b70904598fe5e82d3f5b8e6f2e3e9f6 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 13:49:43,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:49:43,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:49:43,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:49:43,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:49:43,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:49:43,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:49:43,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:49:43,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:49:43,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:49:43,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:49:43,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:49:43,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:49:43,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:49:43,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:49:43,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:49:43,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:49:43,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:49:43,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:49:43,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:49:43,181 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:49:43,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:49:43,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:49:43,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:49:43,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:49:43,185 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:49:43,185 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:49:43,186 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:49:43,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:49:43,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:49:43,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:49:43,188 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:49:43,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:49:43,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:49:43,190 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:49:43,190 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:49:43,190 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:49:43,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:49:43,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:49:43,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:49:43,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:49:43,193 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 13:49:43,207 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:49:43,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:49:43,208 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 13:49:43,208 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 13:49:43,208 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 13:49:43,208 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 13:49:43,209 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 13:49:43,209 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 13:49:43,209 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 13:49:43,209 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 13:49:43,209 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 13:49:43,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:49:43,210 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 13:49:43,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:49:43,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:49:43,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 13:49:43,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 13:49:43,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 13:49:43,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:49:43,211 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 13:49:43,211 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:49:43,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 13:49:43,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:49:43,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:49:43,212 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 13:49:43,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:49:43,212 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 13:49:43,212 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:49:43,212 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 13:49:43,213 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 13:49:43,213 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7e1c1540b70904598fe5e82d3f5b8e6f2e3e9f6 [2019-12-07 13:49:43,324 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:49:43,333 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:49:43,335 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:49:43,336 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:49:43,337 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:49:43,337 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c [2019-12-07 13:49:43,377 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/data/108393408/b9c2c87f705e496aad17b70226dc9450/FLAG2d6f51afb [2019-12-07 13:49:43,757 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:49:43,758 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c [2019-12-07 13:49:43,761 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/data/108393408/b9c2c87f705e496aad17b70226dc9450/FLAG2d6f51afb [2019-12-07 13:49:44,151 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/data/108393408/b9c2c87f705e496aad17b70226dc9450 [2019-12-07 13:49:44,154 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:49:44,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:49:44,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:49:44,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:49:44,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:49:44,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:49:44" (1/1) ... [2019-12-07 13:49:44,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b0414ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:49:44, skipping insertion in model container [2019-12-07 13:49:44,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:49:44" (1/1) ... [2019-12-07 13:49:44,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:49:44,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:49:44,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:49:44,274 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:49:44,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:49:44,329 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:49:44,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:49:44 WrapperNode [2019-12-07 13:49:44,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:49:44,330 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:49:44,330 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:49:44,330 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:49:44,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:49:44" (1/1) ... [2019-12-07 13:49:44,342 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:49:44" (1/1) ... [2019-12-07 13:49:44,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:49:44,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:49:44,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:49:44,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:49:44,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:49:44" (1/1) ... [2019-12-07 13:49:44,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:49:44" (1/1) ... [2019-12-07 13:49:44,362 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:49:44" (1/1) ... [2019-12-07 13:49:44,362 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:49:44" (1/1) ... [2019-12-07 13:49:44,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:49:44" (1/1) ... [2019-12-07 13:49:44,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:49:44" (1/1) ... [2019-12-07 13:49:44,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:49:44" (1/1) ... [2019-12-07 13:49:44,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:49:44,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:49:44,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:49:44,368 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:49:44,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:49:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:44,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:49:44,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:49:44,496 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:49:44,496 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 13:49:44,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:49:44 BoogieIcfgContainer [2019-12-07 13:49:44,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:49:44,498 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 13:49:44,498 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 13:49:44,500 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 13:49:44,500 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 13:49:44,500 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 01:49:44" (1/3) ... [2019-12-07 13:49:44,501 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74680b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 01:49:44, skipping insertion in model container [2019-12-07 13:49:44,501 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 13:49:44,501 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:49:44" (2/3) ... [2019-12-07 13:49:44,502 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74680b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 01:49:44, skipping insertion in model container [2019-12-07 13:49:44,502 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 13:49:44,502 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:49:44" (3/3) ... [2019-12-07 13:49:44,503 INFO L371 chiAutomizerObserver]: Analyzing ICFG PodelskiRybalchenko-LICS2004-Fig1.c [2019-12-07 13:49:44,531 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 13:49:44,531 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 13:49:44,531 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 13:49:44,531 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:49:44,531 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:49:44,531 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 13:49:44,532 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:49:44,532 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 13:49:44,540 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-12-07 13:49:44,553 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 13:49:44,553 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 13:49:44,553 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 13:49:44,557 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 13:49:44,557 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 13:49:44,557 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 13:49:44,557 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-12-07 13:49:44,557 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 13:49:44,558 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 13:49:44,558 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 13:49:44,558 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 13:49:44,558 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 13:49:44,563 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 3#L17-2true [2019-12-07 13:49:44,563 INFO L796 eck$LassoCheckResult]: Loop: 3#L17-2true assume !!(main_~x~0 >= 0 && main_~x~0 <= 1073741823);main_~y~0 := 1; 6#L19-2true assume !(main_~y~0 < main_~x~0); 5#L19-3true main_~x~0 := main_~x~0 - 1; 3#L17-2true [2019-12-07 13:49:44,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:49:44,567 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-12-07 13:49:44,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:49:44,572 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061972342] [2019-12-07 13:49:44,572 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:49:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:49:44,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:49:44,635 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:49:44,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:49:44,636 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2019-12-07 13:49:44,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:49:44,637 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369520960] [2019-12-07 13:49:44,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:49:44,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:49:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:49:44,647 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:49:44,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:49:44,649 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2019-12-07 13:49:44,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:49:44,649 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596000192] [2019-12-07 13:49:44,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:49:44,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:49:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:49:44,658 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:49:44,703 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 13:49:44,704 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 13:49:44,704 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 13:49:44,704 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 13:49:44,704 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 13:49:44,704 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:44,704 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 13:49:44,704 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 13:49:44,705 INFO L133 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-LICS2004-Fig1.c_Iteration1_Loop [2019-12-07 13:49:44,705 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 13:49:44,705 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 13:49:44,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:44,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:44,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:44,804 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 13:49:44,805 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:44,809 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 13:49:44,809 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 13:49:44,816 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 13:49:44,816 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:44,820 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 13:49:44,820 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 13:49:44,824 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 13:49:44,824 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:44,828 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 13:49:44,828 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:44,835 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 13:49:44,836 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 13:49:44,847 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 13:49:44,848 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 13:49:44,848 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 13:49:44,849 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 13:49:44,849 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 13:49:44,849 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 13:49:44,849 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:44,849 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 13:49:44,849 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 13:49:44,849 INFO L133 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-LICS2004-Fig1.c_Iteration1_Loop [2019-12-07 13:49:44,849 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 13:49:44,849 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 13:49:44,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:44,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:44,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:44,900 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 13:49:44,903 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:44,907 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 13:49:44,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:49:44,909 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:49:44,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:49:44,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:49:44,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:49:44,912 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:49:44,912 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:49:44,914 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 13:49:44,918 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 13:49:44,918 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:44,921 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 13:49:44,921 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 13:49:44,922 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 13:49:44,922 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2019-12-07 13:49:44,925 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 13:49:44,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:49:44,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:49:44,951 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 13:49:44,952 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:49:44,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:49:44,959 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 13:49:44,959 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:49:44,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:49:44,979 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 [2019-12-07 13:49:44,980 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2019-12-07 13:49:45,012 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 35 transitions. Complement of second has 7 states. [2019-12-07 13:49:45,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 13:49:45,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 13:49:45,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2019-12-07 13:49:45,015 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2019-12-07 13:49:45,016 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 13:49:45,016 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2019-12-07 13:49:45,016 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 13:49:45,016 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2019-12-07 13:49:45,017 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 13:49:45,017 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2019-12-07 13:49:45,019 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 13:49:45,021 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2019-12-07 13:49:45,022 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2019-12-07 13:49:45,022 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-12-07 13:49:45,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-12-07 13:49:45,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 13:49:45,022 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-12-07 13:49:45,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-12-07 13:49:45,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2019-12-07 13:49:45,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-12-07 13:49:45,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2019-12-07 13:49:45,039 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2019-12-07 13:49:45,039 INFO L591 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2019-12-07 13:49:45,039 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 13:49:45,039 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2019-12-07 13:49:45,039 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 13:49:45,039 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 13:49:45,040 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 13:49:45,040 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 13:49:45,040 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 13:49:45,040 INFO L794 eck$LassoCheckResult]: Stem: 74#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 70#L17-2 assume !!(main_~x~0 >= 0 && main_~x~0 <= 1073741823);main_~y~0 := 1; 72#L19-2 [2019-12-07 13:49:45,040 INFO L796 eck$LassoCheckResult]: Loop: 72#L19-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 72#L19-2 [2019-12-07 13:49:45,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:49:45,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-12-07 13:49:45,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:49:45,041 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510935076] [2019-12-07 13:49:45,041 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:49:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:49:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:49:45,046 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:49:45,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:49:45,046 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2019-12-07 13:49:45,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:49:45,046 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591306349] [2019-12-07 13:49:45,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:49:45,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:49:45,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:49:45,050 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:49:45,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:49:45,050 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2019-12-07 13:49:45,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:49:45,051 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623382138] [2019-12-07 13:49:45,051 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:49:45,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:49:45,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:49:45,057 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:49:45,079 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 13:49:45,080 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 13:49:45,080 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 13:49:45,080 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 13:49:45,080 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 13:49:45,080 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:45,080 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 13:49:45,080 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 13:49:45,080 INFO L133 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-LICS2004-Fig1.c_Iteration2_Lasso [2019-12-07 13:49:45,080 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 13:49:45,080 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 13:49:45,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:45,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:45,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:45,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:45,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:45,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:45,134 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 13:49:45,135 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:45,138 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 13:49:45,138 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 13:49:45,141 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 13:49:45,141 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:45,145 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 13:49:45,145 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 13:49:45,148 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 13:49:45,148 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:45,155 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 13:49:45,155 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:45,162 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 13:49:45,162 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 13:49:57,192 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2019-12-07 13:49:57,198 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 13:49:57,199 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 13:49:57,199 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 13:49:57,199 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 13:49:57,199 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 13:49:57,199 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:57,199 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 13:49:57,199 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 13:49:57,199 INFO L133 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-LICS2004-Fig1.c_Iteration2_Lasso [2019-12-07 13:49:57,199 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 13:49:57,199 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 13:49:57,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:57,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:57,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:57,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:57,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:57,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:57,253 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 13:49:57,254 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:57,257 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 13:49:57,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:49:57,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:49:57,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:49:57,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:49:57,262 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 13:49:57,262 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 13:49:57,265 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:57,269 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 13:49:57,271 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:49:57,271 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:49:57,271 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:49:57,271 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:49:57,271 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:49:57,271 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:49:57,271 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:49:57,273 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:57,277 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 13:49:57,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:49:57,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:49:57,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:49:57,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:49:57,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:49:57,280 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:49:57,280 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:49:57,281 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:57,289 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 13:49:57,291 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:49:57,291 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:49:57,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:49:57,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:49:57,291 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:49:57,291 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:49:57,292 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:49:57,293 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:57,297 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 13:49:57,298 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:49:57,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:49:57,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:49:57,299 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:49:57,302 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 13:49:57,302 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 13:49:57,309 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 13:49:57,318 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-12-07 13:49:57,318 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:57,322 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 13:49:57,324 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 13:49:57,325 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 13:49:57,325 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2019-12-07 13:49:57,329 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-12-07 13:49:57,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:49:57,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:49:57,358 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 13:49:57,358 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:49:57,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:49:57,362 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 13:49:57,362 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:49:57,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:49:57,362 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-12-07 13:49:57,363 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand 2 states. [2019-12-07 13:49:57,387 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 13 states and 18 transitions. Complement of second has 5 states. [2019-12-07 13:49:57,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 13:49:57,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-12-07 13:49:57,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-12-07 13:49:57,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2019-12-07 13:49:57,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 13:49:57,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2019-12-07 13:49:57,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 13:49:57,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2019-12-07 13:49:57,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 13:49:57,388 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2019-12-07 13:49:57,389 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 13:49:57,390 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 9 states and 13 transitions. [2019-12-07 13:49:57,390 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2019-12-07 13:49:57,390 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2019-12-07 13:49:57,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2019-12-07 13:49:57,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 13:49:57,390 INFO L688 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2019-12-07 13:49:57,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2019-12-07 13:49:57,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 6. [2019-12-07 13:49:57,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-12-07 13:49:57,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2019-12-07 13:49:57,391 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2019-12-07 13:49:57,391 INFO L591 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2019-12-07 13:49:57,391 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 13:49:57,391 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2019-12-07 13:49:57,392 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 13:49:57,392 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 13:49:57,392 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 13:49:57,392 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2019-12-07 13:49:57,392 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 13:49:57,392 INFO L794 eck$LassoCheckResult]: Stem: 132#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 127#L17-2 assume !!(main_~x~0 >= 0 && main_~x~0 <= 1073741823);main_~y~0 := 1; 128#L19-2 assume !(main_~y~0 < main_~x~0); 131#L19-3 main_~x~0 := main_~x~0 - 1; 129#L17-2 assume !!(main_~x~0 >= 0 && main_~x~0 <= 1073741823);main_~y~0 := 1; 130#L19-2 [2019-12-07 13:49:57,392 INFO L796 eck$LassoCheckResult]: Loop: 130#L19-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 130#L19-2 [2019-12-07 13:49:57,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:49:57,393 INFO L82 PathProgramCache]: Analyzing trace with hash 29867642, now seen corresponding path program 2 times [2019-12-07 13:49:57,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:49:57,393 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333491501] [2019-12-07 13:49:57,393 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:49:57,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:49:57,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:49:57,400 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:49:57,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:49:57,400 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2019-12-07 13:49:57,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:49:57,401 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102448780] [2019-12-07 13:49:57,401 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:49:57,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:49:57,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:49:57,405 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:49:57,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:49:57,405 INFO L82 PathProgramCache]: Analyzing trace with hash 925896921, now seen corresponding path program 1 times [2019-12-07 13:49:57,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:49:57,405 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199332468] [2019-12-07 13:49:57,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:49:57,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:49:57,446 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:49:57,447 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199332468] [2019-12-07 13:49:57,447 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907845552] [2019-12-07 13:49:57,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:49:57,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:49:57,467 INFO L264 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 13:49:57,468 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:49:57,485 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:49:57,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 13:49:57,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-12-07 13:49:57,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703302678] [2019-12-07 13:49:57,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:49:57,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 13:49:57,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-12-07 13:49:57,501 INFO L87 Difference]: Start difference. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 7 states. [2019-12-07 13:49:57,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:49:57,542 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2019-12-07 13:49:57,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 13:49:57,543 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 18 transitions. [2019-12-07 13:49:57,544 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 13:49:57,544 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 8 states and 10 transitions. [2019-12-07 13:49:57,544 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-12-07 13:49:57,544 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-12-07 13:49:57,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2019-12-07 13:49:57,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 13:49:57,544 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2019-12-07 13:49:57,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2019-12-07 13:49:57,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-12-07 13:49:57,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-07 13:49:57,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2019-12-07 13:49:57,545 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2019-12-07 13:49:57,545 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2019-12-07 13:49:57,546 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 13:49:57,546 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2019-12-07 13:49:57,546 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 13:49:57,546 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 13:49:57,546 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 13:49:57,546 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2019-12-07 13:49:57,547 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 13:49:57,547 INFO L794 eck$LassoCheckResult]: Stem: 184#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 180#L17-2 assume !!(main_~x~0 >= 0 && main_~x~0 <= 1073741823);main_~y~0 := 1; 181#L19-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 186#L19-2 assume !(main_~y~0 < main_~x~0); 185#L19-3 main_~x~0 := main_~x~0 - 1; 182#L17-2 assume !!(main_~x~0 >= 0 && main_~x~0 <= 1073741823);main_~y~0 := 1; 183#L19-2 [2019-12-07 13:49:57,547 INFO L796 eck$LassoCheckResult]: Loop: 183#L19-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 183#L19-2 [2019-12-07 13:49:57,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:49:57,547 INFO L82 PathProgramCache]: Analyzing trace with hash 925951131, now seen corresponding path program 2 times [2019-12-07 13:49:57,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:49:57,547 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664432440] [2019-12-07 13:49:57,547 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:49:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:49:57,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:49:57,556 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:49:57,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:49:57,556 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 3 times [2019-12-07 13:49:57,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:49:57,556 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959697017] [2019-12-07 13:49:57,557 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:49:57,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:49:57,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:49:57,560 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:49:57,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:49:57,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1360285992, now seen corresponding path program 3 times [2019-12-07 13:49:57,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:49:57,561 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551621170] [2019-12-07 13:49:57,561 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:49:57,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:49:57,590 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:49:57,591 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551621170] [2019-12-07 13:49:57,591 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060132223] [2019-12-07 13:49:57,591 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:49:57,617 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-12-07 13:49:57,617 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 13:49:57,618 INFO L264 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 13:49:57,618 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:49:57,636 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:49:57,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 13:49:57,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2019-12-07 13:49:57,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621334421] [2019-12-07 13:49:57,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:49:57,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 13:49:57,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-12-07 13:49:57,645 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 8 states. [2019-12-07 13:49:57,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:49:57,686 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-12-07 13:49:57,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 13:49:57,686 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 16 transitions. [2019-12-07 13:49:57,687 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 13:49:57,687 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 12 transitions. [2019-12-07 13:49:57,687 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-12-07 13:49:57,687 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-12-07 13:49:57,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2019-12-07 13:49:57,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 13:49:57,688 INFO L688 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2019-12-07 13:49:57,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2019-12-07 13:49:57,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 8. [2019-12-07 13:49:57,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-12-07 13:49:57,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2019-12-07 13:49:57,689 INFO L711 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2019-12-07 13:49:57,689 INFO L591 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2019-12-07 13:49:57,689 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 13:49:57,689 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2019-12-07 13:49:57,689 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 13:49:57,689 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 13:49:57,689 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 13:49:57,690 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1] [2019-12-07 13:49:57,690 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 13:49:57,690 INFO L794 eck$LassoCheckResult]: Stem: 243#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 238#L17-2 assume !!(main_~x~0 >= 0 && main_~x~0 <= 1073741823);main_~y~0 := 1; 239#L19-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 244#L19-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 245#L19-2 assume !(main_~y~0 < main_~x~0); 242#L19-3 main_~x~0 := main_~x~0 - 1; 240#L17-2 assume !!(main_~x~0 >= 0 && main_~x~0 <= 1073741823);main_~y~0 := 1; 241#L19-2 [2019-12-07 13:49:57,690 INFO L796 eck$LassoCheckResult]: Loop: 241#L19-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 241#L19-2 [2019-12-07 13:49:57,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:49:57,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1360231782, now seen corresponding path program 4 times [2019-12-07 13:49:57,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:49:57,691 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622476148] [2019-12-07 13:49:57,691 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:49:57,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:49:57,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:49:57,699 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:49:57,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:49:57,700 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 4 times [2019-12-07 13:49:57,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:49:57,700 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309439465] [2019-12-07 13:49:57,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:49:57,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:49:57,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:49:57,703 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:49:57,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:49:57,703 INFO L82 PathProgramCache]: Analyzing trace with hash 782487737, now seen corresponding path program 5 times [2019-12-07 13:49:57,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:49:57,704 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677763640] [2019-12-07 13:49:57,704 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:49:57,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:49:57,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:49:57,713 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:49:57,757 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 13:49:57,758 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 13:49:57,758 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 13:49:57,758 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 13:49:57,758 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 13:49:57,758 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:57,758 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 13:49:57,758 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 13:49:57,758 INFO L133 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-LICS2004-Fig1.c_Iteration5_Lasso [2019-12-07 13:49:57,758 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 13:49:57,758 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 13:49:57,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:57,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:57,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:57,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:57,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:57,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:57,812 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 13:49:57,812 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:57,815 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 13:49:57,815 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 13:49:57,817 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 13:49:57,817 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:57,821 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 13:49:57,821 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 13:49:57,824 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 13:49:57,824 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:57,828 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 13:49:57,828 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 13:49:57,830 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 13:49:57,830 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:57,835 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 13:49:57,835 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 13:49:57,838 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 13:49:57,839 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:57,843 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 13:49:57,843 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:57,850 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 13:49:57,850 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 13:49:57,941 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 13:49:57,943 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 13:49:57,943 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 13:49:57,943 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 13:49:57,943 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 13:49:57,943 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 13:49:57,944 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:57,944 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 13:49:57,944 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 13:49:57,944 INFO L133 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-LICS2004-Fig1.c_Iteration5_Lasso [2019-12-07 13:49:57,944 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 13:49:57,944 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 13:49:57,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:57,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:57,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:57,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:57,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:57,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 13:49:57,988 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 13:49:57,988 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:57,991 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 13:49:57,992 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:49:57,992 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:49:57,992 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:49:57,992 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:49:57,992 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:49:57,993 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:49:57,993 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:49:57,994 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:57,999 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 13:49:58,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:49:58,000 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:49:58,000 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:49:58,000 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:49:58,000 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:49:58,000 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:49:58,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:49:58,001 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:58,006 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 13:49:58,007 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:49:58,007 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:49:58,007 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:49:58,007 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:49:58,007 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:49:58,008 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:49:58,008 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:49:58,009 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:58,013 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 13:49:58,014 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:49:58,014 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:49:58,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:49:58,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:49:58,016 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 13:49:58,016 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 13:49:58,019 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:58,023 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 13:49:58,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:49:58,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:49:58,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:49:58,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:49:58,026 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 13:49:58,026 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 13:49:58,028 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:58,033 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 13:49:58,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:49:58,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:49:58,035 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:49:58,035 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:49:58,038 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 13:49:58,038 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 13:49:58,044 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 13:49:58,054 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-12-07 13:49:58,054 INFO L444 ModelExtractionUtils]: 1 out of 10 variables were initially zero. Simplification set additionally 4 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9600fb39-071b-463b-90c9-5f8ad4e7e228/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:49:58,057 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 13:49:58,058 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 13:49:58,059 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 13:49:58,059 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2019-12-07 13:49:58,065 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-12-07 13:49:58,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:49:58,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:49:58,085 INFO L264 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 13:49:58,086 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:49:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:49:58,088 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 13:49:58,088 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:49:58,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:49:58,089 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-12-07 13:49:58,089 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 2 states. [2019-12-07 13:49:58,109 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 15 states and 19 transitions. Complement of second has 5 states. [2019-12-07 13:49:58,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 13:49:58,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-12-07 13:49:58,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-12-07 13:49:58,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 7 letters. Loop has 1 letters. [2019-12-07 13:49:58,110 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 13:49:58,110 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 13:49:58,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:49:58,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:49:58,130 INFO L264 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 13:49:58,131 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:49:58,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:49:58,133 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 13:49:58,134 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:49:58,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:49:58,134 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2019-12-07 13:49:58,134 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 2 states. [2019-12-07 13:49:58,153 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 15 states and 19 transitions. Complement of second has 5 states. [2019-12-07 13:49:58,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 13:49:58,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-12-07 13:49:58,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-12-07 13:49:58,154 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 7 letters. Loop has 1 letters. [2019-12-07 13:49:58,154 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 13:49:58,154 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 13:49:58,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:49:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:49:58,173 INFO L264 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 13:49:58,173 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:49:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:49:58,175 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 13:49:58,175 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:49:58,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:49:58,176 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-12-07 13:49:58,176 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 2 states. [2019-12-07 13:49:58,195 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 11 states and 13 transitions. Complement of second has 4 states. [2019-12-07 13:49:58,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 13:49:58,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-12-07 13:49:58,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2019-12-07 13:49:58,195 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 1 letters. [2019-12-07 13:49:58,196 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 13:49:58,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 1 letters. [2019-12-07 13:49:58,196 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 13:49:58,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2019-12-07 13:49:58,196 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 13:49:58,196 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2019-12-07 13:49:58,196 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 13:49:58,196 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2019-12-07 13:49:58,197 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 13:49:58,197 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 13:49:58,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 13:49:58,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 13:49:58,197 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 13:49:58,197 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 13:49:58,197 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 13:49:58,197 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-12-07 13:49:58,197 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 13:49:58,197 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 13:49:58,197 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 13:49:58,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 01:49:58 BoogieIcfgContainer [2019-12-07 13:49:58,201 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 13:49:58,202 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:49:58,202 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:49:58,202 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:49:58,202 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:49:44" (3/4) ... [2019-12-07 13:49:58,204 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 13:49:58,204 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:49:58,205 INFO L168 Benchmark]: Toolchain (without parser) took 14050.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 939.4 MB in the beginning and 999.5 MB in the end (delta: -60.1 MB). Peak memory consumption was 46.9 MB. Max. memory is 11.5 GB. [2019-12-07 13:49:58,206 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:49:58,206 INFO L168 Benchmark]: CACSL2BoogieTranslator took 173.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -164.9 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2019-12-07 13:49:58,206 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.65 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:49:58,207 INFO L168 Benchmark]: Boogie Preprocessor took 11.80 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:49:58,207 INFO L168 Benchmark]: RCFGBuilder took 129.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-12-07 13:49:58,207 INFO L168 Benchmark]: BuchiAutomizer took 13703.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 999.5 MB in the end (delta: 84.3 MB). Peak memory consumption was 84.3 MB. Max. memory is 11.5 GB. [2019-12-07 13:49:58,208 INFO L168 Benchmark]: Witness Printer took 2.53 ms. Allocated memory is still 1.1 GB. Free memory is still 999.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:49:58,210 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 173.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -164.9 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.65 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.80 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 129.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 13703.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 999.5 MB in the end (delta: 84.3 MB). Peak memory consumption was 84.3 MB. Max. memory is 11.5 GB. * Witness Printer took 2.53 ms. Allocated memory is still 1.1 GB. Free memory is still 999.5 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 5 locations. One deterministic module has affine ranking function -1 * y + x and consists of 3 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.6s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 13.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 19 SDtfs, 26 SDslu, 7 SDs, 0 SdLazy, 84 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax165 hnf98 lsp59 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq155 hnf92 smp100 dnf100 smp100 tf102 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 12.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...