./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Benghazi_true-no-overflow_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_17f82e42-575c-4d19-bddf-eab8e657c630/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_17f82e42-575c-4d19-bddf-eab8e657c630/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_17f82e42-575c-4d19-bddf-eab8e657c630/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_17f82e42-575c-4d19-bddf-eab8e657c630/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Benghazi_true-no-overflow_true-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_17f82e42-575c-4d19-bddf-eab8e657c630/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_17f82e42-575c-4d19-bddf-eab8e657c630/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 2b89ce5b96ce55081609675201b2a9a116c2941a .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 14:15:58,047 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 14:15:58,048 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 14:15:58,054 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 14:15:58,054 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 14:15:58,055 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 14:15:58,055 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 14:15:58,056 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 14:15:58,057 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 14:15:58,057 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 14:15:58,058 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 14:15:58,058 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 14:15:58,058 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 14:15:58,059 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 14:15:58,059 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 14:15:58,059 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 14:15:58,060 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 14:15:58,061 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 14:15:58,061 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 14:15:58,062 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 14:15:58,063 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 14:15:58,063 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 14:15:58,064 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 14:15:58,064 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 14:15:58,064 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 14:15:58,065 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 14:15:58,065 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 14:15:58,066 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 14:15:58,066 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 14:15:58,067 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 14:15:58,067 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 14:15:58,067 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 14:15:58,067 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 14:15:58,067 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 14:15:58,068 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 14:15:58,068 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 14:15:58,068 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_17f82e42-575c-4d19-bddf-eab8e657c630/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-08 14:15:58,076 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 14:15:58,076 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 14:15:58,077 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 14:15:58,077 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 14:15:58,077 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 14:15:58,077 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-08 14:15:58,077 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-08 14:15:58,077 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-08 14:15:58,077 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-08 14:15:58,077 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-08 14:15:58,077 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-08 14:15:58,077 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 14:15:58,078 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 14:15:58,078 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 14:15:58,078 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 14:15:58,078 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-08 14:15:58,078 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-08 14:15:58,078 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-08 14:15:58,078 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 14:15:58,078 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-08 14:15:58,078 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 14:15:58,078 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-08 14:15:58,078 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 14:15:58,079 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 14:15:58,079 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-08 14:15:58,079 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 14:15:58,079 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 14:15:58,079 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-08 14:15:58,080 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-08 14:15:58,080 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_17f82e42-575c-4d19-bddf-eab8e657c630/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 -> 2b89ce5b96ce55081609675201b2a9a116c2941a [2018-12-08 14:15:58,097 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 14:15:58,106 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 14:15:58,109 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 14:15:58,110 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 14:15:58,110 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 14:15:58,111 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_17f82e42-575c-4d19-bddf-eab8e657c630/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/Benghazi_true-no-overflow_true-termination_true-valid-memsafety.c [2018-12-08 14:15:58,150 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_17f82e42-575c-4d19-bddf-eab8e657c630/bin-2019/uautomizer/data/31c05b867/307770f2ebc141288426db104feaf4c3/FLAG52122f289 [2018-12-08 14:15:58,578 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 14:15:58,579 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_17f82e42-575c-4d19-bddf-eab8e657c630/sv-benchmarks/c/termination-crafted/Benghazi_true-no-overflow_true-termination_true-valid-memsafety.c [2018-12-08 14:15:58,582 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_17f82e42-575c-4d19-bddf-eab8e657c630/bin-2019/uautomizer/data/31c05b867/307770f2ebc141288426db104feaf4c3/FLAG52122f289 [2018-12-08 14:15:58,590 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_17f82e42-575c-4d19-bddf-eab8e657c630/bin-2019/uautomizer/data/31c05b867/307770f2ebc141288426db104feaf4c3 [2018-12-08 14:15:58,592 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 14:15:58,593 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 14:15:58,594 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 14:15:58,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 14:15:58,596 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 14:15:58,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 02:15:58" (1/1) ... [2018-12-08 14:15:58,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@753418dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:15:58, skipping insertion in model container [2018-12-08 14:15:58,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 02:15:58" (1/1) ... [2018-12-08 14:15:58,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 14:15:58,611 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 14:15:58,693 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 14:15:58,695 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 14:15:58,703 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 14:15:58,711 INFO L195 MainTranslator]: Completed translation [2018-12-08 14:15:58,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:15:58 WrapperNode [2018-12-08 14:15:58,712 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 14:15:58,712 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 14:15:58,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 14:15:58,712 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 14:15:58,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:15:58" (1/1) ... [2018-12-08 14:15:58,720 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:15:58" (1/1) ... [2018-12-08 14:15:58,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 14:15:58,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 14:15:58,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 14:15:58,731 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 14:15:58,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:15:58" (1/1) ... [2018-12-08 14:15:58,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:15:58" (1/1) ... [2018-12-08 14:15:58,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:15:58" (1/1) ... [2018-12-08 14:15:58,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:15:58" (1/1) ... [2018-12-08 14:15:58,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:15:58" (1/1) ... [2018-12-08 14:15:58,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:15:58" (1/1) ... [2018-12-08 14:15:58,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:15:58" (1/1) ... [2018-12-08 14:15:58,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 14:15:58,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 14:15:58,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 14:15:58,742 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 14:15:58,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:15:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17f82e42-575c-4d19-bddf-eab8e657c630/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 14:15:58,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 14:15:58,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 14:15:58,877 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 14:15:58,877 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-08 14:15:58,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 02:15:58 BoogieIcfgContainer [2018-12-08 14:15:58,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 14:15:58,878 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-08 14:15:58,878 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-08 14:15:58,880 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-08 14:15:58,880 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 14:15:58,880 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.12 02:15:58" (1/3) ... [2018-12-08 14:15:58,881 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22c0c9ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 02:15:58, skipping insertion in model container [2018-12-08 14:15:58,881 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 14:15:58,881 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:15:58" (2/3) ... [2018-12-08 14:15:58,882 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22c0c9ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 02:15:58, skipping insertion in model container [2018-12-08 14:15:58,882 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 14:15:58,882 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 02:15:58" (3/3) ... [2018-12-08 14:15:58,883 INFO L375 chiAutomizerObserver]: Analyzing ICFG Benghazi_true-no-overflow_true-termination_true-valid-memsafety.c [2018-12-08 14:15:58,916 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 14:15:58,916 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-08 14:15:58,917 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-08 14:15:58,917 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-08 14:15:58,917 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 14:15:58,917 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 14:15:58,917 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-08 14:15:58,917 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 14:15:58,917 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-08 14:15:58,925 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2018-12-08 14:15:58,937 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-08 14:15:58,937 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 14:15:58,937 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 14:15:58,940 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-08 14:15:58,940 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-08 14:15:58,940 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-08 14:15:58,941 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2018-12-08 14:15:58,941 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-08 14:15:58,941 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 14:15:58,941 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 14:15:58,941 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-08 14:15:58,941 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-08 14:15:58,946 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~d1~0, main_~d2~0, main_~d1old~0;havoc main_~x~0;havoc main_~d1~0;havoc main_~d2~0;havoc main_~d1old~0;main_~d1~0 := 73;main_~d2~0 := 74;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 8#L22-2true [2018-12-08 14:15:58,946 INFO L796 eck$LassoCheckResult]: Loop: 8#L22-2true assume !!(main_~x~0 >= 0);main_~x~0 := main_~x~0 - main_~d1~0;main_~d1old~0 := main_~d1~0;main_~d1~0 := 1 + main_~d2~0;main_~d2~0 := 1 + main_~d1old~0; 8#L22-2true [2018-12-08 14:15:58,950 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 14:15:58,950 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-12-08 14:15:58,951 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 14:15:58,952 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 14:15:58,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:15:58,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 14:15:58,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:15:58,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 14:15:58,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 14:15:59,008 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 14:15:59,008 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2018-12-08 14:15:59,008 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 14:15:59,008 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 14:15:59,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:15:59,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 14:15:59,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:15:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 14:15:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 14:15:59,020 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 14:15:59,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-12-08 14:15:59,021 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 14:15:59,021 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 14:15:59,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:15:59,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 14:15:59,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:15:59,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 14:15:59,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 14:15:59,060 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 14:15:59,060 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 14:15:59,060 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 14:15:59,061 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 14:15:59,061 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 14:15:59,061 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 14:15:59,061 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 14:15:59,061 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 14:15:59,061 INFO L131 ssoRankerPreferences]: Filename of dumped script: Benghazi_true-no-overflow_true-termination_true-valid-memsafety.c_Iteration1_Loop [2018-12-08 14:15:59,061 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 14:15:59,061 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 14:15:59,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 14:15:59,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 14:15:59,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 14:15:59,161 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 14:15:59,161 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17f82e42-575c-4d19-bddf-eab8e657c630/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 14:15:59,165 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 14:15:59,166 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 14:15:59,185 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 14:15:59,185 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_17f82e42-575c-4d19-bddf-eab8e657c630/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 14:15:59,188 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 14:15:59,188 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 14:15:59,203 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 14:15:59,203 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_17f82e42-575c-4d19-bddf-eab8e657c630/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 14:15:59,206 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 14:15:59,206 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17f82e42-575c-4d19-bddf-eab8e657c630/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 14:15:59,225 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 14:15:59,225 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 14:16:02,947 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 14:16:02,948 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 14:16:02,948 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 14:16:02,948 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 14:16:02,949 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 14:16:02,949 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 14:16:02,949 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 14:16:02,949 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 14:16:02,949 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 14:16:02,949 INFO L131 ssoRankerPreferences]: Filename of dumped script: Benghazi_true-no-overflow_true-termination_true-valid-memsafety.c_Iteration1_Loop [2018-12-08 14:16:02,949 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 14:16:02,949 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 14:16:02,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 14:16:02,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 14:16:02,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 14:16:03,022 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 14:16:03,025 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 14:16:03,026 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-08 14:16:03,027 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 14:16:03,027 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 14:16:03,027 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 14:16:03,027 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 14:16:03,030 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 14:16:03,030 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 14:16:03,034 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 14:16:03,035 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-08 14:16:03,035 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 14:16:03,036 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 14:16:03,036 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 14:16:03,036 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 14:16:03,037 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 14:16:03,037 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 14:16:03,042 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 14:16:03,042 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-08 14:16:03,042 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 14:16:03,043 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 14:16:03,043 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 14:16:03,043 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 14:16:03,043 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 14:16:03,044 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 14:16:03,044 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 14:16:03,050 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 14:16:03,050 INFO L497 LassoAnalysis]: Using template '2-nested'. [2018-12-08 14:16:03,050 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-08 14:16:03,051 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 14:16:03,051 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 14:16:03,051 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 14:16:03,051 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-12-08 14:16:03,053 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2018-12-08 14:16:03,053 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2018-12-08 14:16:03,056 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 14:16:03,056 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-08 14:16:03,057 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 14:16:03,057 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 14:16:03,057 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 14:16:03,057 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-12-08 14:16:03,059 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2018-12-08 14:16:03,059 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2018-12-08 14:16:03,064 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 14:16:03,064 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-08 14:16:03,065 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 14:16:03,065 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 14:16:03,065 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 14:16:03,065 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 14:16:03,065 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-12-08 14:16:03,066 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2018-12-08 14:16:03,066 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 14:16:03,075 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 14:16:03,075 INFO L497 LassoAnalysis]: Using template '3-nested'. [2018-12-08 14:16:03,075 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-08 14:16:03,076 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 14:16:03,076 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 14:16:03,076 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 14:16:03,076 INFO L207 nArgumentSynthesizer]: 4 template conjuncts. [2018-12-08 14:16:03,078 INFO L402 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2018-12-08 14:16:03,078 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2018-12-08 14:16:03,081 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 14:16:03,081 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-08 14:16:03,082 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 14:16:03,082 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 14:16:03,082 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 14:16:03,082 INFO L207 nArgumentSynthesizer]: 4 template conjuncts. [2018-12-08 14:16:03,084 INFO L402 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2018-12-08 14:16:03,084 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2018-12-08 14:16:03,089 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 14:16:03,089 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-08 14:16:03,090 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 14:16:03,090 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 14:16:03,090 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 14:16:03,090 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 14:16:03,090 INFO L207 nArgumentSynthesizer]: 4 template conjuncts. [2018-12-08 14:16:03,091 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-12-08 14:16:03,091 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 14:16:03,100 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 14:16:03,109 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-08 14:16:03,109 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-08 14:16:03,111 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 14:16:03,111 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-08 14:16:03,111 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 14:16:03,111 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function 3-nested ranking function: f0 = -1*ULTIMATE.start_main_~d2~0 - 1*ULTIMATE.start_main_~d1~0 f1 = -1*ULTIMATE.start_main_~d1~0 + 2*ULTIMATE.start_main_~x~0 + 1 f2 = 1*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2018-12-08 14:16:03,112 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-08 14:16:03,141 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 14:16:03,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 14:16:03,148 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 14:16:03,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 14:16:03,156 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 14:16:03,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 14:16:03,166 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-12-08 14:16:03,167 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states. Second operand 2 states. [2018-12-08 14:16:03,194 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states.. Second operand 2 states. Result 15 states and 18 transitions. Complement of second has 5 states. [2018-12-08 14:16:03,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-08 14:16:03,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-08 14:16:03,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2018-12-08 14:16:03,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2018-12-08 14:16:03,197 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 14:16:03,197 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2018-12-08 14:16:03,197 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 14:16:03,197 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2018-12-08 14:16:03,197 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 14:16:03,198 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2018-12-08 14:16:03,199 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-08 14:16:03,200 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2018-12-08 14:16:03,201 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-08 14:16:03,201 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-08 14:16:03,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-08 14:16:03,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-08 14:16:03,202 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 14:16:03,202 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 14:16:03,202 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 14:16:03,202 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-08 14:16:03,202 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-08 14:16:03,202 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-08 14:16:03,202 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-08 14:16:03,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.12 02:16:03 BoogieIcfgContainer [2018-12-08 14:16:03,206 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-08 14:16:03,206 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 14:16:03,206 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 14:16:03,207 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 14:16:03,207 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 02:15:58" (3/4) ... [2018-12-08 14:16:03,209 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 14:16:03,209 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 14:16:03,209 INFO L168 Benchmark]: Toolchain (without parser) took 4616.88 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 954.4 MB in the beginning and 1.0 GB in the end (delta: -48.1 MB). Peak memory consumption was 66.7 MB. Max. memory is 11.5 GB. [2018-12-08 14:16:03,210 INFO L168 Benchmark]: CDTParser took 0.14 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. [2018-12-08 14:16:03,211 INFO L168 Benchmark]: CACSL2BoogieTranslator took 118.38 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 942.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-08 14:16:03,211 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.15 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 14:16:03,211 INFO L168 Benchmark]: Boogie Preprocessor took 10.76 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 14:16:03,212 INFO L168 Benchmark]: RCFGBuilder took 135.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -161.2 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2018-12-08 14:16:03,212 INFO L168 Benchmark]: BuchiAutomizer took 4328.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 101.3 MB). Peak memory consumption was 101.3 MB. Max. memory is 11.5 GB. [2018-12-08 14:16:03,213 INFO L168 Benchmark]: Witness Printer took 2.71 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 14:16:03,215 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 118.38 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 942.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.15 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.76 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 135.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -161.2 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4328.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 101.3 MB). Peak memory consumption was 101.3 MB. Max. memory is 11.5 GB. * Witness Printer took 2.71 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 3-nested ranking function (if -1 * d2 + -1 * d1 > 0 then 2 else (if -1 * d1 + 2 * x + 1 > 0 then 1 else 0)), (if -1 * d2 + -1 * d1 > 0 then -1 * d2 + -1 * d1 else (if -1 * d1 + 2 * x + 1 > 0 then -1 * d1 + 2 * x + 1 else x + 1)) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 4.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 4 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital25 mio100 ax148 hnf94 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq195 hnf91 smp100 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 5ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 4 MotzkinApplications: 12 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 3.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...