./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Pure2Phase_true-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9e5318ef-a493-46f4-be30-c6e3a9d497d4/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9e5318ef-a493-46f4-be30-c6e3a9d497d4/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9e5318ef-a493-46f4-be30-c6e3a9d497d4/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9e5318ef-a493-46f4-be30-c6e3a9d497d4/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Pure2Phase_true-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9e5318ef-a493-46f4-be30-c6e3a9d497d4/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9e5318ef-a493-46f4-be30-c6e3a9d497d4/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 2291f924dd9adb1923bbd2b3119647838e71c665 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 00:11:20,886 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 00:11:20,887 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 00:11:20,895 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 00:11:20,895 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 00:11:20,896 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 00:11:20,896 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 00:11:20,897 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 00:11:20,898 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 00:11:20,898 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 00:11:20,898 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 00:11:20,899 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 00:11:20,899 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 00:11:20,899 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 00:11:20,900 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 00:11:20,900 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 00:11:20,901 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 00:11:20,902 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 00:11:20,902 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 00:11:20,903 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 00:11:20,904 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 00:11:20,904 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 00:11:20,906 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 00:11:20,906 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 00:11:20,906 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 00:11:20,907 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 00:11:20,907 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 00:11:20,908 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 00:11:20,908 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 00:11:20,909 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 00:11:20,909 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 00:11:20,909 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 00:11:20,909 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 00:11:20,909 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 00:11:20,910 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 00:11:20,910 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 00:11:20,910 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9e5318ef-a493-46f4-be30-c6e3a9d497d4/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-09 00:11:20,918 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 00:11:20,918 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 00:11:20,918 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 00:11:20,919 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 00:11:20,919 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 00:11:20,919 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-09 00:11:20,919 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-09 00:11:20,919 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-09 00:11:20,919 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-09 00:11:20,920 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-09 00:11:20,920 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-09 00:11:20,920 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 00:11:20,920 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 00:11:20,920 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 00:11:20,920 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 00:11:20,920 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-09 00:11:20,921 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-09 00:11:20,921 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-09 00:11:20,921 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 00:11:20,921 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-09 00:11:20,921 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 00:11:20,921 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-09 00:11:20,922 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 00:11:20,922 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 00:11:20,922 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-09 00:11:20,922 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 00:11:20,922 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 00:11:20,922 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-09 00:11:20,923 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-09 00:11:20,923 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_9e5318ef-a493-46f4-be30-c6e3a9d497d4/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 -> 2291f924dd9adb1923bbd2b3119647838e71c665 [2018-12-09 00:11:20,945 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 00:11:20,952 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 00:11:20,954 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 00:11:20,955 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 00:11:20,955 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 00:11:20,956 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9e5318ef-a493-46f4-be30-c6e3a9d497d4/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/Pure2Phase_true-termination_true-valid-memsafety.c [2018-12-09 00:11:20,990 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9e5318ef-a493-46f4-be30-c6e3a9d497d4/bin-2019/uautomizer/data/f9079bad6/cf5120dedbb14d59965f9f980bd46898/FLAGd779c677f [2018-12-09 00:11:21,408 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 00:11:21,409 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9e5318ef-a493-46f4-be30-c6e3a9d497d4/sv-benchmarks/c/termination-crafted/Pure2Phase_true-termination_true-valid-memsafety.c [2018-12-09 00:11:21,412 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9e5318ef-a493-46f4-be30-c6e3a9d497d4/bin-2019/uautomizer/data/f9079bad6/cf5120dedbb14d59965f9f980bd46898/FLAGd779c677f [2018-12-09 00:11:21,421 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9e5318ef-a493-46f4-be30-c6e3a9d497d4/bin-2019/uautomizer/data/f9079bad6/cf5120dedbb14d59965f9f980bd46898 [2018-12-09 00:11:21,423 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 00:11:21,423 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 00:11:21,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 00:11:21,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 00:11:21,426 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 00:11:21,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:11:21" (1/1) ... [2018-12-09 00:11:21,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27d92faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:11:21, skipping insertion in model container [2018-12-09 00:11:21,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:11:21" (1/1) ... [2018-12-09 00:11:21,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 00:11:21,442 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 00:11:21,525 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:11:21,527 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 00:11:21,536 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:11:21,543 INFO L195 MainTranslator]: Completed translation [2018-12-09 00:11:21,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:11:21 WrapperNode [2018-12-09 00:11:21,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 00:11:21,544 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 00:11:21,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 00:11:21,544 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 00:11:21,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:11:21" (1/1) ... [2018-12-09 00:11:21,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:11:21" (1/1) ... [2018-12-09 00:11:21,561 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 00:11:21,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 00:11:21,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 00:11:21,561 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 00:11:21,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:11:21" (1/1) ... [2018-12-09 00:11:21,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:11:21" (1/1) ... [2018-12-09 00:11:21,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:11:21" (1/1) ... [2018-12-09 00:11:21,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:11:21" (1/1) ... [2018-12-09 00:11:21,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:11:21" (1/1) ... [2018-12-09 00:11:21,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:11:21" (1/1) ... [2018-12-09 00:11:21,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:11:21" (1/1) ... [2018-12-09 00:11:21,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 00:11:21,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 00:11:21,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 00:11:21,571 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 00:11:21,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:11:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e5318ef-a493-46f4-be30-c6e3a9d497d4/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:11:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 00:11:21,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 00:11:21,715 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 00:11:21,715 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-09 00:11:21,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:11:21 BoogieIcfgContainer [2018-12-09 00:11:21,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 00:11:21,716 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-09 00:11:21,716 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-09 00:11:21,718 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-09 00:11:21,718 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 00:11:21,719 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.12 12:11:21" (1/3) ... [2018-12-09 00:11:21,719 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@331e9c02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 12:11:21, skipping insertion in model container [2018-12-09 00:11:21,719 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 00:11:21,719 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:11:21" (2/3) ... [2018-12-09 00:11:21,720 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@331e9c02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 12:11:21, skipping insertion in model container [2018-12-09 00:11:21,720 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 00:11:21,720 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:11:21" (3/3) ... [2018-12-09 00:11:21,721 INFO L375 chiAutomizerObserver]: Analyzing ICFG Pure2Phase_true-termination_true-valid-memsafety.c [2018-12-09 00:11:21,752 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 00:11:21,752 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-09 00:11:21,753 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-09 00:11:21,753 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-09 00:11:21,753 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 00:11:21,753 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 00:11:21,753 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-09 00:11:21,753 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 00:11:21,753 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-09 00:11:21,760 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-12-09 00:11:21,773 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-09 00:11:21,773 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 00:11:21,773 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 00:11:21,777 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-09 00:11:21,778 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-09 00:11:21,778 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-09 00:11:21,778 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-12-09 00:11:21,778 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-09 00:11:21,778 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 00:11:21,778 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 00:11:21,779 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-09 00:11:21,779 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-09 00:11:21,783 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~y~0, main_~z~0;havoc main_~y~0;havoc main_~z~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~z~0 := main_#t~nondet1;havoc main_#t~nondet1; 11#L20true assume !!(-1073741823 <= main_~y~0 && main_~y~0 <= 1073741823); 3#L21true assume !!(main_~z~0 <= 1073741823); 7#L24-2true [2018-12-09 00:11:21,783 INFO L796 eck$LassoCheckResult]: Loop: 7#L24-2true assume !!(main_~z~0 >= 0);main_~y~0 := main_~y~0 - 1; 9#L24true assume !(main_~y~0 >= 0);main_~z~0 := main_~z~0 - 1; 7#L24-2true [2018-12-09 00:11:21,786 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:11:21,787 INFO L82 PathProgramCache]: Analyzing trace with hash 30949, now seen corresponding path program 1 times [2018-12-09 00:11:21,788 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:11:21,788 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:11:21,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:11:21,828 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:11:21,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:11:21,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:11:21,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:11:21,855 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:11:21,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1611, now seen corresponding path program 1 times [2018-12-09 00:11:21,855 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:11:21,855 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:11:21,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:11:21,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:11:21,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:11:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:11:21,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:11:21,862 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:11:21,862 INFO L82 PathProgramCache]: Analyzing trace with hash 29742639, now seen corresponding path program 1 times [2018-12-09 00:11:21,862 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:11:21,862 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:11:21,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:11:21,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:11:21,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:11:21,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:11:21,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:11:21,904 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 00:11:21,904 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 00:11:21,905 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 00:11:21,905 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 00:11:21,905 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 00:11:21,905 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:11:21,905 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 00:11:21,905 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 00:11:21,905 INFO L131 ssoRankerPreferences]: Filename of dumped script: Pure2Phase_true-termination_true-valid-memsafety.c_Iteration1_Loop [2018-12-09 00:11:21,905 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 00:11:21,905 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 00:11:21,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:21,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:21,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:21,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:21,993 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 00:11:21,993 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e5318ef-a493-46f4-be30-c6e3a9d497d4/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:11:21,997 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:11:21,997 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:11:22,016 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 00:11:22,016 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_9e5318ef-a493-46f4-be30-c6e3a9d497d4/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:11:22,019 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:11:22,019 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:11:22,033 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 00:11:22,033 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_9e5318ef-a493-46f4-be30-c6e3a9d497d4/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:11:22,037 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:11:22,037 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e5318ef-a493-46f4-be30-c6e3a9d497d4/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:11:22,053 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 00:11:22,054 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:11:22,070 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 00:11:22,071 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 00:11:22,071 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 00:11:22,071 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 00:11:22,071 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 00:11:22,071 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 00:11:22,072 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:11:22,072 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 00:11:22,072 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 00:11:22,072 INFO L131 ssoRankerPreferences]: Filename of dumped script: Pure2Phase_true-termination_true-valid-memsafety.c_Iteration1_Loop [2018-12-09 00:11:22,072 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 00:11:22,072 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 00:11:22,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:22,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:22,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:22,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:22,127 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 00:11:22,130 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 00:11:22,131 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 00:11:22,132 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:11:22,132 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:11:22,132 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:11:22,132 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:11:22,135 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 00:11:22,135 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 00:11:22,139 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 00:11:22,140 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 00:11:22,140 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:11:22,140 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:11:22,140 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:11:22,140 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:11:22,141 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 00:11:22,142 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 00:11:22,145 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 00:11:22,146 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 00:11:22,146 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:11:22,146 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 00:11:22,146 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:11:22,147 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:11:22,147 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:11:22,147 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 00:11:22,147 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 00:11:22,150 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 00:11:22,152 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-09 00:11:22,152 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-09 00:11:22,153 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 00:11:22,153 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-09 00:11:22,154 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 00:11:22,154 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 2*ULTIMATE.start_main_~z~0 + 1 Supporting invariants [] [2018-12-09 00:11:22,155 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-09 00:11:22,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:11:22,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:11:22,180 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:11:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:11:22,187 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:11:22,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:11:22,207 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-09 00:11:22,207 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 3 states. [2018-12-09 00:11:22,237 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 3 states. Result 29 states and 38 transitions. Complement of second has 8 states. [2018-12-09 00:11:22,237 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 [2018-12-09 00:11:22,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-09 00:11:22,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2018-12-09 00:11:22,240 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 3 letters. Loop has 2 letters. [2018-12-09 00:11:22,240 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:11:22,241 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 5 letters. Loop has 2 letters. [2018-12-09 00:11:22,241 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:11:22,241 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 3 letters. Loop has 4 letters. [2018-12-09 00:11:22,241 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:11:22,241 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 38 transitions. [2018-12-09 00:11:22,243 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-09 00:11:22,245 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 10 states and 13 transitions. [2018-12-09 00:11:22,246 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-12-09 00:11:22,246 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-12-09 00:11:22,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2018-12-09 00:11:22,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 00:11:22,247 INFO L705 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2018-12-09 00:11:22,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2018-12-09 00:11:22,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-12-09 00:11:22,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-12-09 00:11:22,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2018-12-09 00:11:22,262 INFO L728 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2018-12-09 00:11:22,262 INFO L608 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2018-12-09 00:11:22,262 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-09 00:11:22,262 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2018-12-09 00:11:22,263 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-09 00:11:22,263 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 00:11:22,263 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 00:11:22,263 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-12-09 00:11:22,263 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-09 00:11:22,263 INFO L794 eck$LassoCheckResult]: Stem: 84#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~y~0, main_~z~0;havoc main_~y~0;havoc main_~z~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~z~0 := main_#t~nondet1;havoc main_#t~nondet1; 85#L20 assume !!(-1073741823 <= main_~y~0 && main_~y~0 <= 1073741823); 82#L21 assume !!(main_~z~0 <= 1073741823); 83#L24-2 assume !!(main_~z~0 >= 0);main_~y~0 := main_~y~0 - 1; 91#L24 assume main_~y~0 >= 0;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 86#L27 [2018-12-09 00:11:22,263 INFO L796 eck$LassoCheckResult]: Loop: 86#L27 assume !!(main_~z~0 <= 1073741823); 87#L24-2 assume !!(main_~z~0 >= 0);main_~y~0 := main_~y~0 - 1; 88#L24 assume main_~y~0 >= 0;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 86#L27 [2018-12-09 00:11:22,263 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:11:22,264 INFO L82 PathProgramCache]: Analyzing trace with hash 29742632, now seen corresponding path program 1 times [2018-12-09 00:11:22,264 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:11:22,264 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:11:22,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:11:22,265 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:11:22,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:11:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:11:22,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:11:22,269 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:11:22,269 INFO L82 PathProgramCache]: Analyzing trace with hash 57342, now seen corresponding path program 1 times [2018-12-09 00:11:22,269 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:11:22,269 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:11:22,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:11:22,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:11:22,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:11:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:11:22,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:11:22,273 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:11:22,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1299514487, now seen corresponding path program 1 times [2018-12-09 00:11:22,273 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:11:22,273 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:11:22,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:11:22,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:11:22,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:11:22,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:11:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:11:22,293 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 00:11:22,293 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 00:11:22,293 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 00:11:22,293 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 00:11:22,293 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 00:11:22,293 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:11:22,293 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 00:11:22,293 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 00:11:22,293 INFO L131 ssoRankerPreferences]: Filename of dumped script: Pure2Phase_true-termination_true-valid-memsafety.c_Iteration2_Loop [2018-12-09 00:11:22,293 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 00:11:22,293 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 00:11:22,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:22,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:22,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:22,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:22,341 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 00:11:22,341 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e5318ef-a493-46f4-be30-c6e3a9d497d4/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:11:22,343 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:11:22,343 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:11:22,357 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 00:11:22,358 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_9e5318ef-a493-46f4-be30-c6e3a9d497d4/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:11:22,360 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:11:22,360 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:11:22,375 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 00:11:22,375 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_9e5318ef-a493-46f4-be30-c6e3a9d497d4/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:11:22,377 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:11:22,378 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:11:22,382 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 00:11:22,382 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=428867584, ULTIMATE.start_main_~z~0=428867584} Honda state: {ULTIMATE.start_main_#t~nondet2=428867584, ULTIMATE.start_main_~z~0=428867584} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e5318ef-a493-46f4-be30-c6e3a9d497d4/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:11:22,397 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:11:22,397 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e5318ef-a493-46f4-be30-c6e3a9d497d4/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:11:22,414 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 00:11:22,414 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:11:22,444 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 00:11:22,445 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 00:11:22,446 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 00:11:22,446 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 00:11:22,446 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 00:11:22,446 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 00:11:22,446 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:11:22,446 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 00:11:22,446 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 00:11:22,446 INFO L131 ssoRankerPreferences]: Filename of dumped script: Pure2Phase_true-termination_true-valid-memsafety.c_Iteration2_Loop [2018-12-09 00:11:22,446 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 00:11:22,446 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 00:11:22,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:22,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:22,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:22,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:22,487 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 00:11:22,488 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 00:11:22,488 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 00:11:22,488 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:11:22,489 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:11:22,489 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:11:22,489 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:11:22,490 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 00:11:22,490 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 00:11:22,492 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 00:11:22,492 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 00:11:22,493 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:11:22,493 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:11:22,493 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:11:22,493 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:11:22,494 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 00:11:22,494 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 00:11:22,497 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 00:11:22,497 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 00:11:22,498 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:11:22,498 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 00:11:22,498 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:11:22,498 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:11:22,498 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:11:22,499 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 00:11:22,499 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 00:11:22,500 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 00:11:22,500 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 00:11:22,500 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:11:22,500 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 00:11:22,501 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:11:22,501 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:11:22,501 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:11:22,501 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 00:11:22,501 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 00:11:22,503 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 00:11:22,505 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-09 00:11:22,505 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-09 00:11:22,505 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 00:11:22,505 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-09 00:11:22,506 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 00:11:22,506 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-12-09 00:11:22,506 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-09 00:11:22,526 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:11:22,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:11:22,530 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:11:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:11:22,533 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:11:22,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:11:22,542 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-09 00:11:22,542 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 4 states. [2018-12-09 00:11:22,556 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 15 states and 20 transitions. Complement of second has 6 states. [2018-12-09 00:11:22,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-09 00:11:22,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 00:11:22,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2018-12-09 00:11:22,557 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 5 letters. Loop has 3 letters. [2018-12-09 00:11:22,557 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:11:22,557 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 8 letters. Loop has 3 letters. [2018-12-09 00:11:22,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:11:22,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 5 letters. Loop has 6 letters. [2018-12-09 00:11:22,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:11:22,558 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2018-12-09 00:11:22,559 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-09 00:11:22,559 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 20 transitions. [2018-12-09 00:11:22,559 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-12-09 00:11:22,559 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-12-09 00:11:22,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2018-12-09 00:11:22,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 00:11:22,560 INFO L705 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2018-12-09 00:11:22,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2018-12-09 00:11:22,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2018-12-09 00:11:22,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-12-09 00:11:22,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2018-12-09 00:11:22,562 INFO L728 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2018-12-09 00:11:22,562 INFO L608 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2018-12-09 00:11:22,562 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-09 00:11:22,562 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2018-12-09 00:11:22,563 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-09 00:11:22,563 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 00:11:22,563 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 00:11:22,563 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-09 00:11:22,563 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-09 00:11:22,563 INFO L794 eck$LassoCheckResult]: Stem: 156#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~y~0, main_~z~0;havoc main_~y~0;havoc main_~z~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~z~0 := main_#t~nondet1;havoc main_#t~nondet1; 157#L20 assume !!(-1073741823 <= main_~y~0 && main_~y~0 <= 1073741823); 154#L21 assume !!(main_~z~0 <= 1073741823); 155#L24-2 assume !!(main_~z~0 >= 0);main_~y~0 := main_~y~0 - 1; 163#L24 assume main_~y~0 >= 0;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 158#L27 assume !!(main_~z~0 <= 1073741823); 160#L24-2 [2018-12-09 00:11:22,563 INFO L796 eck$LassoCheckResult]: Loop: 160#L24-2 assume !!(main_~z~0 >= 0);main_~y~0 := main_~y~0 - 1; 165#L24 assume !(main_~y~0 >= 0);main_~z~0 := main_~z~0 - 1; 160#L24-2 [2018-12-09 00:11:22,564 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:11:22,564 INFO L82 PathProgramCache]: Analyzing trace with hash 922021620, now seen corresponding path program 2 times [2018-12-09 00:11:22,564 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:11:22,564 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:11:22,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:11:22,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:11:22,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:11:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:11:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:11:22,573 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:11:22,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1611, now seen corresponding path program 2 times [2018-12-09 00:11:22,573 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:11:22,573 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:11:22,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:11:22,574 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 00:11:22,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:11:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:11:22,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:11:22,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:11:22,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1299514494, now seen corresponding path program 1 times [2018-12-09 00:11:22,578 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:11:22,579 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:11:22,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:11:22,580 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 00:11:22,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:11:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:11:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:11:22,603 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 00:11:22,604 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 00:11:22,604 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 00:11:22,604 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 00:11:22,604 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 00:11:22,604 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:11:22,604 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 00:11:22,604 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 00:11:22,604 INFO L131 ssoRankerPreferences]: Filename of dumped script: Pure2Phase_true-termination_true-valid-memsafety.c_Iteration3_Loop [2018-12-09 00:11:22,604 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 00:11:22,604 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 00:11:22,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:22,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:22,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:22,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:22,652 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 00:11:22,652 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e5318ef-a493-46f4-be30-c6e3a9d497d4/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:11:22,654 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:11:22,654 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e5318ef-a493-46f4-be30-c6e3a9d497d4/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 [2018-12-09 00:11:22,670 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 00:11:22,670 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:11:22,685 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 00:11:22,686 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 00:11:22,686 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 00:11:22,686 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 00:11:22,687 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 00:11:22,687 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 00:11:22,687 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:11:22,687 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 00:11:22,687 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 00:11:22,687 INFO L131 ssoRankerPreferences]: Filename of dumped script: Pure2Phase_true-termination_true-valid-memsafety.c_Iteration3_Loop [2018-12-09 00:11:22,687 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 00:11:22,687 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 00:11:22,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:22,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:22,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:22,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:22,725 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 00:11:22,725 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 00:11:22,725 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 00:11:22,725 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:11:22,725 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 00:11:22,726 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:11:22,726 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:11:22,726 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:11:22,726 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 00:11:22,726 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 00:11:22,728 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 00:11:22,729 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-09 00:11:22,729 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-09 00:11:22,730 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 00:11:22,730 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-09 00:11:22,730 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 00:11:22,730 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 2*ULTIMATE.start_main_~z~0 + 1 Supporting invariants [] [2018-12-09 00:11:22,730 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-09 00:11:22,746 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:11:22,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:11:22,749 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:11:22,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:11:22,753 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:11:22,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:11:22,763 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-09 00:11:22,763 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-12-09 00:11:22,769 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 20 states and 27 transitions. Complement of second has 5 states. [2018-12-09 00:11:22,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-09 00:11:22,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-09 00:11:22,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-12-09 00:11:22,770 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2018-12-09 00:11:22,770 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:11:22,770 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 2 letters. [2018-12-09 00:11:22,770 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:11:22,770 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 4 letters. [2018-12-09 00:11:22,770 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:11:22,770 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 27 transitions. [2018-12-09 00:11:22,771 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-09 00:11:22,771 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 16 states and 21 transitions. [2018-12-09 00:11:22,771 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-12-09 00:11:22,771 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-12-09 00:11:22,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2018-12-09 00:11:22,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 00:11:22,772 INFO L705 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2018-12-09 00:11:22,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2018-12-09 00:11:22,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-12-09 00:11:22,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-12-09 00:11:22,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2018-12-09 00:11:22,773 INFO L728 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2018-12-09 00:11:22,773 INFO L608 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2018-12-09 00:11:22,773 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-09 00:11:22,773 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2018-12-09 00:11:22,773 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-09 00:11:22,773 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 00:11:22,773 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 00:11:22,774 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1] [2018-12-09 00:11:22,774 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-09 00:11:22,774 INFO L794 eck$LassoCheckResult]: Stem: 234#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~y~0, main_~z~0;havoc main_~y~0;havoc main_~z~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~z~0 := main_#t~nondet1;havoc main_#t~nondet1; 235#L20 assume !!(-1073741823 <= main_~y~0 && main_~y~0 <= 1073741823); 232#L21 assume !!(main_~z~0 <= 1073741823); 233#L24-2 assume !!(main_~z~0 >= 0);main_~y~0 := main_~y~0 - 1; 242#L24 assume main_~y~0 >= 0;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 236#L27 assume !!(main_~z~0 <= 1073741823); 237#L24-2 assume !!(main_~z~0 >= 0);main_~y~0 := main_~y~0 - 1; 246#L24 assume main_~y~0 >= 0;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 238#L27 assume !!(main_~z~0 <= 1073741823); 239#L24-2 [2018-12-09 00:11:22,774 INFO L796 eck$LassoCheckResult]: Loop: 239#L24-2 assume !!(main_~z~0 >= 0);main_~y~0 := main_~y~0 - 1; 244#L24 assume !(main_~y~0 >= 0);main_~z~0 := main_~z~0 - 1; 239#L24-2 [2018-12-09 00:11:22,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:11:22,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1630243461, now seen corresponding path program 3 times [2018-12-09 00:11:22,774 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:11:22,774 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:11:22,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:11:22,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:11:22,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:11:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:11:22,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:11:22,781 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:11:22,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1611, now seen corresponding path program 3 times [2018-12-09 00:11:22,781 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:11:22,781 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:11:22,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:11:22,782 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 00:11:22,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:11:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:11:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:11:22,785 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:11:22,785 INFO L82 PathProgramCache]: Analyzing trace with hash -999096369, now seen corresponding path program 2 times [2018-12-09 00:11:22,785 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:11:22,785 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:11:22,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:11:22,786 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 00:11:22,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:11:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:11:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:11:22,801 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 00:11:22,801 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 00:11:22,801 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 00:11:22,801 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 00:11:22,801 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 00:11:22,801 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:11:22,801 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 00:11:22,801 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 00:11:22,801 INFO L131 ssoRankerPreferences]: Filename of dumped script: Pure2Phase_true-termination_true-valid-memsafety.c_Iteration4_Loop [2018-12-09 00:11:22,801 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 00:11:22,801 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 00:11:22,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:22,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:22,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:22,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:22,853 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 00:11:22,853 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e5318ef-a493-46f4-be30-c6e3a9d497d4/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:11:22,855 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:11:22,855 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:11:22,870 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 00:11:22,870 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e5318ef-a493-46f4-be30-c6e3a9d497d4/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:11:22,872 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:11:22,873 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e5318ef-a493-46f4-be30-c6e3a9d497d4/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 [2018-12-09 00:11:22,888 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 00:11:22,889 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:11:22,904 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 00:11:22,905 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 00:11:22,905 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 00:11:22,905 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 00:11:22,905 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 00:11:22,905 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 00:11:22,905 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:11:22,905 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 00:11:22,905 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 00:11:22,905 INFO L131 ssoRankerPreferences]: Filename of dumped script: Pure2Phase_true-termination_true-valid-memsafety.c_Iteration4_Loop [2018-12-09 00:11:22,906 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 00:11:22,906 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 00:11:22,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:22,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:22,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:22,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:11:22,937 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 00:11:22,938 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 00:11:22,938 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 00:11:22,938 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:11:22,938 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 00:11:22,938 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:11:22,938 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:11:22,939 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:11:22,939 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 00:11:22,939 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 00:11:22,940 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 00:11:22,941 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-09 00:11:22,941 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-09 00:11:22,942 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 00:11:22,942 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-09 00:11:22,942 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 00:11:22,942 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 2*ULTIMATE.start_main_~z~0 + 1 Supporting invariants [] [2018-12-09 00:11:22,942 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-09 00:11:22,952 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:11:22,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:11:22,956 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:11:22,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:11:22,958 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:11:22,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:11:22,967 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-09 00:11:22,967 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 9 Second operand 3 states. [2018-12-09 00:11:22,974 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 18 states and 23 transitions. Complement of second has 5 states. [2018-12-09 00:11:22,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-09 00:11:22,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-09 00:11:22,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-12-09 00:11:22,975 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 2 letters. [2018-12-09 00:11:22,975 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:11:22,975 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-09 00:11:22,982 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:11:22,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:11:22,985 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:11:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:11:22,988 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:11:22,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:11:22,994 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-09 00:11:22,994 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 9 Second operand 3 states. [2018-12-09 00:11:22,999 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 18 states and 23 transitions. Complement of second has 5 states. [2018-12-09 00:11:22,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-09 00:11:22,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-09 00:11:23,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-12-09 00:11:23,000 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 2 letters. [2018-12-09 00:11:23,000 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:11:23,000 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-09 00:11:23,007 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:11:23,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:11:23,011 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:11:23,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:11:23,013 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:11:23,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:11:23,021 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 2 loop predicates [2018-12-09 00:11:23,021 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 9 Second operand 3 states. [2018-12-09 00:11:23,027 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 21 states and 27 transitions. Complement of second has 4 states. [2018-12-09 00:11:23,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-09 00:11:23,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-09 00:11:23,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-12-09 00:11:23,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 2 letters. [2018-12-09 00:11:23,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:11:23,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 11 letters. Loop has 2 letters. [2018-12-09 00:11:23,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:11:23,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 4 letters. [2018-12-09 00:11:23,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:11:23,029 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 27 transitions. [2018-12-09 00:11:23,029 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-09 00:11:23,029 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2018-12-09 00:11:23,029 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-09 00:11:23,029 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-09 00:11:23,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-09 00:11:23,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-09 00:11:23,030 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 00:11:23,030 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 00:11:23,030 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 00:11:23,030 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-12-09 00:11:23,030 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-09 00:11:23,030 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-09 00:11:23,030 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-09 00:11:23,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.12 12:11:23 BoogieIcfgContainer [2018-12-09 00:11:23,034 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-09 00:11:23,034 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 00:11:23,034 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 00:11:23,035 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 00:11:23,035 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:11:21" (3/4) ... [2018-12-09 00:11:23,038 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 00:11:23,038 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 00:11:23,039 INFO L168 Benchmark]: Toolchain (without parser) took 1615.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 954.4 MB in the beginning and 802.1 MB in the end (delta: 152.3 MB). Peak memory consumption was 255.6 MB. Max. memory is 11.5 GB. [2018-12-09 00:11:23,040 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:11:23,040 INFO L168 Benchmark]: CACSL2BoogieTranslator took 119.68 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 942.5 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. [2018-12-09 00:11:23,040 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.08 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:11:23,041 INFO L168 Benchmark]: Boogie Preprocessor took 10.01 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 939.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 00:11:23,041 INFO L168 Benchmark]: RCFGBuilder took 144.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -146.1 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-09 00:11:23,041 INFO L168 Benchmark]: BuchiAutomizer took 1318.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 802.1 MB in the end (delta: 283.9 MB). Peak memory consumption was 283.9 MB. Max. memory is 11.5 GB. [2018-12-09 00:11:23,042 INFO L168 Benchmark]: Witness Printer took 3.79 ms. Allocated memory is still 1.1 GB. Free memory is still 802.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:11:23,043 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 119.68 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 942.5 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.08 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.01 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 939.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 144.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -146.1 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1318.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 802.1 MB in the end (delta: 283.9 MB). Peak memory consumption was 283.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.79 ms. Allocated memory is still 1.1 GB. Free memory is still 802.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * z + 1 and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function 2 * z + 1 and consists of 3 locations. One nondeterministic module has affine ranking function 2 * z + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 16 states and ocurred in iteration 3. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 50 SDtfs, 47 SDslu, 8 SDs, 0 SdLazy, 34 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax163 hnf97 lsp33 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq156 hnf93 smp100 dnf100 smp100 tf113 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 8ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 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...