./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/c.01-no-inv_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/c.01-no-inv_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 90c8922c67b3eb8c55716b63a408098d1b23a21e ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-22 23:07:56,867 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 23:07:56,869 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 23:07:56,879 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 23:07:56,879 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 23:07:56,880 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 23:07:56,881 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 23:07:56,883 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 23:07:56,884 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 23:07:56,885 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 23:07:56,886 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 23:07:56,886 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 23:07:56,887 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 23:07:56,888 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 23:07:56,889 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 23:07:56,889 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 23:07:56,890 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 23:07:56,891 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 23:07:56,893 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 23:07:56,895 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 23:07:56,895 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 23:07:56,896 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 23:07:56,898 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 23:07:56,899 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 23:07:56,899 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 23:07:56,900 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 23:07:56,901 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 23:07:56,902 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 23:07:56,903 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 23:07:56,903 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 23:07:56,904 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 23:07:56,905 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 23:07:56,905 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 23:07:56,905 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 23:07:56,906 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 23:07:56,907 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 23:07:56,907 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-22 23:07:56,921 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 23:07:56,921 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 23:07:56,922 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-22 23:07:56,923 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-22 23:07:56,923 INFO L133 SettingsManager]: * Use SBE=true [2018-11-22 23:07:56,923 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-22 23:07:56,923 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-22 23:07:56,923 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-22 23:07:56,923 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-22 23:07:56,924 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-22 23:07:56,924 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-22 23:07:56,924 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 23:07:56,924 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-22 23:07:56,924 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 23:07:56,924 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 23:07:56,924 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-22 23:07:56,925 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-22 23:07:56,925 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-22 23:07:56,925 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 23:07:56,925 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-22 23:07:56,925 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 23:07:56,925 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-22 23:07:56,926 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 23:07:56,926 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 23:07:56,926 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-22 23:07:56,926 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 23:07:56,926 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-22 23:07:56,926 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-22 23:07:56,927 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-22 23:07:56,927 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90c8922c67b3eb8c55716b63a408098d1b23a21e [2018-11-22 23:07:56,955 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 23:07:56,964 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 23:07:56,967 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 23:07:56,969 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 23:07:56,969 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 23:07:56,969 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/c.01-no-inv_true-termination_true-no-overflow.c [2018-11-22 23:07:57,014 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer/data/3cbb6dfb2/80b30e879aa24bbf8d254e4a3659c803/FLAG8486248d4 [2018-11-22 23:07:57,338 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 23:07:57,339 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/sv-benchmarks/c/termination-restricted-15/c.01-no-inv_true-termination_true-no-overflow.c [2018-11-22 23:07:57,343 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer/data/3cbb6dfb2/80b30e879aa24bbf8d254e4a3659c803/FLAG8486248d4 [2018-11-22 23:07:57,789 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer/data/3cbb6dfb2/80b30e879aa24bbf8d254e4a3659c803 [2018-11-22 23:07:57,792 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 23:07:57,792 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 23:07:57,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 23:07:57,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 23:07:57,795 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 23:07:57,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:07:57" (1/1) ... [2018-11-22 23:07:57,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e5fba41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:57, skipping insertion in model container [2018-11-22 23:07:57,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:07:57" (1/1) ... [2018-11-22 23:07:57,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 23:07:57,819 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 23:07:57,941 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 23:07:57,943 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 23:07:57,952 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 23:07:57,959 INFO L195 MainTranslator]: Completed translation [2018-11-22 23:07:57,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:57 WrapperNode [2018-11-22 23:07:57,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 23:07:57,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 23:07:57,960 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 23:07:57,960 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 23:07:57,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:57" (1/1) ... [2018-11-22 23:07:57,967 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:57" (1/1) ... [2018-11-22 23:07:57,977 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 23:07:57,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 23:07:57,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 23:07:57,978 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 23:07:57,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:57" (1/1) ... [2018-11-22 23:07:57,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:57" (1/1) ... [2018-11-22 23:07:57,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:57" (1/1) ... [2018-11-22 23:07:57,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:57" (1/1) ... [2018-11-22 23:07:57,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:57" (1/1) ... [2018-11-22 23:07:57,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:57" (1/1) ... [2018-11-22 23:07:57,989 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:57" (1/1) ... [2018-11-22 23:07:57,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 23:07:57,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 23:07:57,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 23:07:57,990 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 23:07:57,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:58,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 23:07:58,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 23:07:58,132 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 23:07:58,133 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-22 23:07:58,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:07:58 BoogieIcfgContainer [2018-11-22 23:07:58,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 23:07:58,133 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-22 23:07:58,133 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-22 23:07:58,136 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-22 23:07:58,136 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-22 23:07:58,136 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.11 11:07:57" (1/3) ... [2018-11-22 23:07:58,137 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6e1b2248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 11:07:58, skipping insertion in model container [2018-11-22 23:07:58,137 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-22 23:07:58,137 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:57" (2/3) ... [2018-11-22 23:07:58,137 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6e1b2248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 11:07:58, skipping insertion in model container [2018-11-22 23:07:58,137 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-22 23:07:58,138 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:07:58" (3/3) ... [2018-11-22 23:07:58,139 INFO L375 chiAutomizerObserver]: Analyzing ICFG c.01-no-inv_true-termination_true-no-overflow.c [2018-11-22 23:07:58,171 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-22 23:07:58,171 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-22 23:07:58,171 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-22 23:07:58,171 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-22 23:07:58,172 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 23:07:58,172 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 23:07:58,172 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-22 23:07:58,172 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 23:07:58,172 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-22 23:07:58,180 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-22 23:07:58,192 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-22 23:07:58,192 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 23:07:58,192 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 23:07:58,197 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-22 23:07:58,197 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-22 23:07:58,197 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-22 23:07:58,197 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-22 23:07:58,197 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-22 23:07:58,198 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 23:07:58,198 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 23:07:58,198 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-22 23:07:58,198 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-22 23:07:58,202 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 8#L10-2true [2018-11-22 23:07:58,202 INFO L796 eck$LassoCheckResult]: Loop: 8#L10-2true assume !!(main_~x~0 >= 0);main_~y~0 := 1; 3#L12-2true assume !(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824); 10#L12-3true main_~x~0 := main_~x~0 - 1; 8#L10-2true [2018-11-22 23:07:58,206 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:58,206 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-22 23:07:58,207 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:07:58,207 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:07:58,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:58,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:07:58,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:58,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:58,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:58,262 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2018-11-22 23:07:58,263 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:07:58,263 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:07:58,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:58,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:07:58,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:58,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:58,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:58,274 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:58,274 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2018-11-22 23:07:58,274 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:07:58,274 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:07:58,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:58,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:07:58,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:58,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:58,338 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:07:58,339 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:07:58,339 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:07:58,339 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:07:58,339 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 23:07:58,339 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:58,339 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:07:58,339 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:07:58,339 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-22 23:07:58,340 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:07:58,340 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:07:58,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:58,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:58,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:58,469 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:07:58,469 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:58,473 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:07:58,473 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:07:58,491 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:07:58,491 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:58,494 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:07:58,494 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:07:58,509 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:07:58,509 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:58,511 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:07:58,512 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:58,537 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 23:07:58,537 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:07:58,556 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 23:07:58,557 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:07:58,557 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:07:58,557 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:07:58,557 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:07:58,557 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 23:07:58,557 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:58,557 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:07:58,557 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:07:58,558 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-22 23:07:58,558 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:07:58,558 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:07:58,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:58,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:58,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:58,659 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:07:58,662 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 23:07:58,664 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:07:58,665 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:07:58,665 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:07:58,665 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:07:58,665 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:07:58,667 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 23:07:58,668 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 23:07:58,672 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:07:58,673 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:07:58,673 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:07:58,673 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:07:58,673 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:07:58,674 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:07:58,675 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 23:07:58,675 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 23:07:58,681 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:07:58,681 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:07:58,682 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:07:58,682 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:07:58,683 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:07:58,683 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:07:58,683 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:07:58,684 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:07:58,684 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:07:58,689 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 23:07:58,692 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 23:07:58,692 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-22 23:07:58,693 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 23:07:58,694 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 23:07:58,694 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 23:07:58,694 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2018-11-22 23:07:58,695 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 23:07:58,724 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:07:58,731 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:07:58,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:07:58,737 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:07:58,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:07:58,757 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-22 23:07:58,758 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2018-11-22 23:07:58,806 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. [2018-11-22 23:07:58,807 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 [2018-11-22 23:07:58,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 23:07:58,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2018-11-22 23:07:58,810 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2018-11-22 23:07:58,812 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:07:58,812 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2018-11-22 23:07:58,812 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:07:58,812 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2018-11-22 23:07:58,812 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:07:58,813 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2018-11-22 23:07:58,815 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-22 23:07:58,819 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2018-11-22 23:07:58,820 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-11-22 23:07:58,820 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-11-22 23:07:58,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2018-11-22 23:07:58,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 23:07:58,821 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-22 23:07:58,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2018-11-22 23:07:58,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2018-11-22 23:07:58,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-22 23:07:58,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2018-11-22 23:07:58,837 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2018-11-22 23:07:58,837 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2018-11-22 23:07:58,837 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-22 23:07:58,837 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2018-11-22 23:07:58,838 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-22 23:07:58,838 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 23:07:58,838 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 23:07:58,838 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-22 23:07:58,838 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-22 23:07:58,838 INFO L794 eck$LassoCheckResult]: Stem: 73#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 74#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 70#L12-2 [2018-11-22 23:07:58,838 INFO L796 eck$LassoCheckResult]: Loop: 70#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 70#L12-2 [2018-11-22 23:07:58,838 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:58,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-22 23:07:58,839 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:07:58,839 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:07:58,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:58,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:07:58,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:58,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:58,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:58,844 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:58,844 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2018-11-22 23:07:58,844 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:07:58,844 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:07:58,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:58,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:07:58,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:58,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:58,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:58,849 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:58,849 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2018-11-22 23:07:58,849 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:07:58,849 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:07:58,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:58,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:07:58,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:58,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:58,881 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:07:58,881 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:07:58,881 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:07:58,881 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:07:58,881 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 23:07:58,881 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:58,881 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:07:58,881 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:07:58,881 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv_true-termination_true-no-overflow.c_Iteration2_Lasso [2018-11-22 23:07:58,881 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:07:58,881 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:07:58,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:58,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:58,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:58,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:58,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:58,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:58,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:58,959 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:07:58,960 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:58,969 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:07:58,969 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:07:58,985 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:07:58,985 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:58,989 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:07:58,989 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:07:58,992 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:07:58,993 INFO L448 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/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:59,007 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:07:59,007 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:07:59,017 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:07:59,018 INFO L448 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/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:59,033 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:07:59,033 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:07:59,035 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:07:59,035 INFO L448 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/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:59,054 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:07:59,054 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:07:59,069 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:07:59,069 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:59,073 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:07:59,073 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:59,091 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 23:07:59,091 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:07:59,110 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 23:07:59,112 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:07:59,112 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:07:59,112 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:07:59,112 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:07:59,112 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 23:07:59,112 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:59,112 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:07:59,112 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:07:59,113 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv_true-termination_true-no-overflow.c_Iteration2_Lasso [2018-11-22 23:07:59,113 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:07:59,113 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:07:59,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:59,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:59,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:59,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:59,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:59,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:59,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:59,244 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:07:59,244 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 23:07:59,245 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:07:59,245 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:07:59,246 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:07:59,246 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:07:59,246 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:07:59,246 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:07:59,246 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:07:59,247 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:07:59,247 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:07:59,248 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:07:59,248 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:07:59,248 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:07:59,248 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:07:59,249 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:07:59,250 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 23:07:59,250 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 23:07:59,253 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:07:59,253 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:07:59,254 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:07:59,254 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:07:59,254 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:07:59,254 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:07:59,254 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:07:59,255 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:07:59,255 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:07:59,255 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:07:59,256 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:07:59,256 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:07:59,256 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:07:59,257 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:07:59,257 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:07:59,257 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:07:59,257 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:07:59,257 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:07:59,258 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:07:59,258 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:07:59,259 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:07:59,259 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:07:59,259 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:07:59,259 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:07:59,260 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 23:07:59,261 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 23:07:59,265 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:07:59,265 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:07:59,265 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:07:59,266 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:07:59,266 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:07:59,266 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:07:59,267 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 23:07:59,267 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 23:07:59,270 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:07:59,270 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:07:59,271 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:07:59,271 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:07:59,271 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:07:59,271 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:07:59,274 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 23:07:59,274 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 23:07:59,306 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 23:07:59,332 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2018-11-22 23:07:59,332 INFO L444 ModelExtractionUtils]: 1 out of 10 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-11-22 23:07:59,333 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 23:07:59,334 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-22 23:07:59,334 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 23:07:59,335 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -2*ULTIMATE.start_main_~y~0 + 2147483647 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2018-11-22 23:07:59,348 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-22 23:07:59,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:59,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:07:59,402 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:07:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:07:59,406 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:07:59,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:07:59,406 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-22 23:07:59,406 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand 2 states. [2018-11-22 23:07:59,435 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. [2018-11-22 23:07:59,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-22 23:07:59,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-22 23:07:59,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-22 23:07:59,436 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2018-11-22 23:07:59,436 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:07:59,437 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2018-11-22 23:07:59,437 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:07:59,437 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2018-11-22 23:07:59,437 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:07:59,437 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2018-11-22 23:07:59,438 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-22 23:07:59,438 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 9 states and 13 transitions. [2018-11-22 23:07:59,439 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-11-22 23:07:59,439 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2018-11-22 23:07:59,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2018-11-22 23:07:59,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 23:07:59,439 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2018-11-22 23:07:59,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2018-11-22 23:07:59,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 6. [2018-11-22 23:07:59,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-22 23:07:59,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2018-11-22 23:07:59,440 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2018-11-22 23:07:59,441 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2018-11-22 23:07:59,441 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-22 23:07:59,441 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2018-11-22 23:07:59,441 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-22 23:07:59,441 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 23:07:59,441 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 23:07:59,442 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2018-11-22 23:07:59,442 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-22 23:07:59,442 INFO L794 eck$LassoCheckResult]: Stem: 130#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 131#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 128#L12-2 assume !(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824); 129#L12-3 main_~x~0 := main_~x~0 - 1; 132#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 127#L12-2 [2018-11-22 23:07:59,442 INFO L796 eck$LassoCheckResult]: Loop: 127#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 127#L12-2 [2018-11-22 23:07:59,442 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:59,442 INFO L82 PathProgramCache]: Analyzing trace with hash 29867642, now seen corresponding path program 2 times [2018-11-22 23:07:59,443 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:07:59,443 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:07:59,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:59,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:07:59,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:59,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:59,450 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:59,450 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2018-11-22 23:07:59,450 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:07:59,450 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:07:59,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:59,451 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 23:07:59,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:59,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:59,455 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:59,455 INFO L82 PathProgramCache]: Analyzing trace with hash 925896921, now seen corresponding path program 1 times [2018-11-22 23:07:59,455 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:07:59,456 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:07:59,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:59,457 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 23:07:59,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:07:59,499 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:07:59,501 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:07:59,501 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-22 23:07:59,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:07:59,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:07:59,515 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:07:59,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:07:59,548 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-22 23:07:59,548 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-11-22 23:07:59,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-22 23:07:59,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-22 23:07:59,577 INFO L87 Difference]: Start difference. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 7 states. [2018-11-22 23:07:59,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:07:59,642 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2018-11-22 23:07:59,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-22 23:07:59,643 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 18 transitions. [2018-11-22 23:07:59,643 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-22 23:07:59,644 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 8 states and 10 transitions. [2018-11-22 23:07:59,644 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-22 23:07:59,644 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-11-22 23:07:59,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2018-11-22 23:07:59,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 23:07:59,645 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2018-11-22 23:07:59,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2018-11-22 23:07:59,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-11-22 23:07:59,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-22 23:07:59,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2018-11-22 23:07:59,646 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-11-22 23:07:59,646 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-11-22 23:07:59,646 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-22 23:07:59,647 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2018-11-22 23:07:59,647 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-22 23:07:59,647 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 23:07:59,647 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 23:07:59,648 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2018-11-22 23:07:59,648 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-22 23:07:59,648 INFO L794 eck$LassoCheckResult]: Stem: 183#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 184#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 181#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 182#L12-2 assume !(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824); 186#L12-3 main_~x~0 := main_~x~0 - 1; 185#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 180#L12-2 [2018-11-22 23:07:59,648 INFO L796 eck$LassoCheckResult]: Loop: 180#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 180#L12-2 [2018-11-22 23:07:59,648 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:59,648 INFO L82 PathProgramCache]: Analyzing trace with hash 925951131, now seen corresponding path program 2 times [2018-11-22 23:07:59,649 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:07:59,649 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:07:59,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:59,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:07:59,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:59,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:59,657 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:59,657 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 3 times [2018-11-22 23:07:59,657 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:07:59,658 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:07:59,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:59,659 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 23:07:59,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:59,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:59,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:59,662 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:59,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1360285992, now seen corresponding path program 3 times [2018-11-22 23:07:59,662 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:07:59,662 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:07:59,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:59,664 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 23:07:59,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:59,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:07:59,700 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:07:59,700 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:07:59,700 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-22 23:07:59,709 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-22 23:07:59,721 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-11-22 23:07:59,721 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-22 23:07:59,723 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:07:59,753 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:07:59,773 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-22 23:07:59,774 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-11-22 23:07:59,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-22 23:07:59,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-22 23:07:59,793 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 8 states. [2018-11-22 23:07:59,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:07:59,836 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2018-11-22 23:07:59,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-22 23:07:59,837 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 16 transitions. [2018-11-22 23:07:59,838 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-22 23:07:59,838 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 12 transitions. [2018-11-22 23:07:59,838 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-22 23:07:59,838 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-22 23:07:59,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2018-11-22 23:07:59,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 23:07:59,838 INFO L705 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2018-11-22 23:07:59,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2018-11-22 23:07:59,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 8. [2018-11-22 23:07:59,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-22 23:07:59,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2018-11-22 23:07:59,840 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2018-11-22 23:07:59,840 INFO L608 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2018-11-22 23:07:59,840 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-22 23:07:59,841 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2018-11-22 23:07:59,841 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-22 23:07:59,841 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 23:07:59,841 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 23:07:59,841 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1] [2018-11-22 23:07:59,842 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-22 23:07:59,842 INFO L794 eck$LassoCheckResult]: Stem: 241#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 242#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 239#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 240#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 245#L12-2 assume !(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824); 244#L12-3 main_~x~0 := main_~x~0 - 1; 243#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 238#L12-2 [2018-11-22 23:07:59,842 INFO L796 eck$LassoCheckResult]: Loop: 238#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 238#L12-2 [2018-11-22 23:07:59,842 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:59,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1360231782, now seen corresponding path program 4 times [2018-11-22 23:07:59,842 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:07:59,842 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:07:59,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:59,843 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 23:07:59,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:59,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:59,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:59,850 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:59,850 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 4 times [2018-11-22 23:07:59,850 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:07:59,850 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:07:59,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:59,851 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 23:07:59,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:59,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:59,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:59,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:59,853 INFO L82 PathProgramCache]: Analyzing trace with hash 782487737, now seen corresponding path program 5 times [2018-11-22 23:07:59,854 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:07:59,854 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:07:59,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:59,854 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 23:07:59,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:59,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:59,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:59,934 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:07:59,934 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:07:59,934 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:07:59,934 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:07:59,934 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 23:07:59,934 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:59,934 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:07:59,934 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:07:59,934 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv_true-termination_true-no-overflow.c_Iteration5_Lasso [2018-11-22 23:07:59,934 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:07:59,934 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:07:59,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:59,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:59,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:59,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:59,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:59,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:59,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:59,992 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:07:59,993 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:59,994 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:07:59,994 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:07:59,996 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:07:59,996 INFO L448 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/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:08:00,011 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:08:00,011 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:08:00,013 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:08:00,013 INFO L448 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/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:08:00,029 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:08:00,029 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:08:00,031 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:08:00,031 INFO L448 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/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:08:00,046 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:08:00,046 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:08:00,060 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:08:00,060 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/uautomizer/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:08:00,063 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:08:00,063 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:08:00,065 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:08:00,065 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/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 [2018-11-22 23:08:00,080 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:08:00,080 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:08:00,094 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:08:00,094 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/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 [2018-11-22 23:08:00,099 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:08:00,099 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aef5718-7b2e-480b-aa5d-c59807cc21d8/bin-2019/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 [2018-11-22 23:08:00,116 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 23:08:00,117 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:08:00,133 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 23:08:00,135 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:08:00,135 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:08:00,135 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:08:00,135 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:08:00,135 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 23:08:00,135 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:08:00,135 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:08:00,135 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:08:00,135 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv_true-termination_true-no-overflow.c_Iteration5_Lasso [2018-11-22 23:08:00,136 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:08:00,136 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:08:00,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:08:00,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:08:00,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:08:00,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:08:00,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:08:00,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:08:00,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:08:00,206 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:08:00,206 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 23:08:00,207 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:08:00,207 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:08:00,207 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:08:00,207 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:08:00,208 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:08:00,208 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:08:00,208 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:08:00,208 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:08:00,208 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:08:00,209 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:08:00,209 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:08:00,209 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:08:00,209 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:08:00,209 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:08:00,209 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:08:00,210 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:08:00,210 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:08:00,210 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:08:00,210 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:08:00,211 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:08:00,211 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:08:00,211 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:08:00,211 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:08:00,211 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:08:00,211 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:08:00,211 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:08:00,212 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:08:00,212 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:08:00,212 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:08:00,213 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:08:00,213 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:08:00,213 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:08:00,213 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 23:08:00,214 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 23:08:00,215 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:08:00,215 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:08:00,216 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:08:00,216 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:08:00,216 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:08:00,216 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:08:00,218 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 23:08:00,218 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 23:08:00,234 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 23:08:00,238 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 23:08:00,238 INFO L444 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-22 23:08:00,238 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 23:08:00,239 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-22 23:08:00,240 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 23:08:00,240 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -2*ULTIMATE.start_main_~y~0 + 2147483647 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2018-11-22 23:08:00,260 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-22 23:08:00,292 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:08:00,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:08:00,297 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:08:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:08:00,302 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:08:00,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:08:00,303 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-22 23:08:00,303 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-11-22 23:08:00,332 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. [2018-11-22 23:08:00,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-22 23:08:00,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-22 23:08:00,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-22 23:08:00,334 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 7 letters. Loop has 1 letters. [2018-11-22 23:08:00,334 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:08:00,334 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-22 23:08:00,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:08:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:08:00,368 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:08:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:08:00,374 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:08:00,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:08:00,374 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-22 23:08:00,375 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-11-22 23:08:00,388 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. [2018-11-22 23:08:00,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-22 23:08:00,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-22 23:08:00,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-22 23:08:00,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 7 letters. Loop has 1 letters. [2018-11-22 23:08:00,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:08:00,389 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-22 23:08:00,412 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:08:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:08:00,418 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:08:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:08:00,421 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:08:00,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:08:00,421 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-22 23:08:00,421 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-11-22 23:08:00,437 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. [2018-11-22 23:08:00,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-22 23:08:00,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-22 23:08:00,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-22 23:08:00,437 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 1 letters. [2018-11-22 23:08:00,438 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:08:00,438 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 1 letters. [2018-11-22 23:08:00,438 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:08:00,438 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-22 23:08:00,438 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:08:00,438 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2018-11-22 23:08:00,439 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-22 23:08:00,439 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2018-11-22 23:08:00,439 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-22 23:08:00,439 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-22 23:08:00,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-22 23:08:00,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-22 23:08:00,439 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 23:08:00,439 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 23:08:00,439 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 23:08:00,439 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-22 23:08:00,439 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-22 23:08:00,439 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-22 23:08:00,440 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-22 23:08:00,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.11 11:08:00 BoogieIcfgContainer [2018-11-22 23:08:00,445 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-22 23:08:00,445 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 23:08:00,445 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 23:08:00,445 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 23:08:00,446 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:07:58" (3/4) ... [2018-11-22 23:08:00,449 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-22 23:08:00,449 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 23:08:00,449 INFO L168 Benchmark]: Toolchain (without parser) took 2657.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 201.3 MB). Free memory was 953.8 MB in the beginning and 1.1 GB in the end (delta: -184.3 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2018-11-22 23:08:00,450 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 23:08:00,450 INFO L168 Benchmark]: CACSL2BoogieTranslator took 166.82 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 942.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-11-22 23:08:00,451 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.43 ms. Allocated memory is still 1.0 GB. Free memory was 942.9 MB in the beginning and 940.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-22 23:08:00,451 INFO L168 Benchmark]: Boogie Preprocessor took 12.18 ms. Allocated memory is still 1.0 GB. Free memory is still 940.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 23:08:00,451 INFO L168 Benchmark]: RCFGBuilder took 143.23 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -157.6 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-22 23:08:00,452 INFO L168 Benchmark]: BuchiAutomizer took 2311.39 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 85.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -40.3 MB). Peak memory consumption was 45.2 MB. Max. memory is 11.5 GB. [2018-11-22 23:08:00,452 INFO L168 Benchmark]: Witness Printer took 3.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 23:08:00,455 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 166.82 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 942.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.43 ms. Allocated memory is still 1.0 GB. Free memory was 942.9 MB in the beginning and 940.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.18 ms. Allocated memory is still 1.0 GB. Free memory is still 940.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 143.23 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -157.6 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2311.39 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 85.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -40.3 MB). Peak memory consumption was 45.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. 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 -2 * y + 2147483647 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * y + 2147483647 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 2.2s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. 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: 27 SDtfs, 30 SDslu, 11 SDs, 0 SdLazy, 72 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax157 hnf98 lsp57 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf93 smp100 dnf100 smp100 tf102 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 13 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...