./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0fb1fa4d-c5b1-4e8d-beef-ea6e3cacf3b1/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0fb1fa4d-c5b1-4e8d-beef-ea6e3cacf3b1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0fb1fa4d-c5b1-4e8d-beef-ea6e3cacf3b1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0fb1fa4d-c5b1-4e8d-beef-ea6e3cacf3b1/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0fb1fa4d-c5b1-4e8d-beef-ea6e3cacf3b1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0fb1fa4d-c5b1-4e8d-beef-ea6e3cacf3b1/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 01c80fcdd0a0da14cc25a34188deb5573e4a4209 ............................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:59:27,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:59:27,808 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:59:27,817 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:59:27,817 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:59:27,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:59:27,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:59:27,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:59:27,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:59:27,823 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:59:27,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:59:27,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:59:27,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:59:27,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:59:27,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:59:27,827 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:59:27,828 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:59:27,829 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:59:27,830 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:59:27,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:59:27,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:59:27,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:59:27,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:59:27,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:59:27,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:59:27,838 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:59:27,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:59:27,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:59:27,839 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:59:27,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:59:27,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:59:27,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:59:27,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:59:27,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:59:27,843 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:59:27,843 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:59:27,844 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:59:27,844 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:59:27,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:59:27,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:59:27,845 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:59:27,846 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0fb1fa4d-c5b1-4e8d-beef-ea6e3cacf3b1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 08:59:27,858 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:59:27,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:59:27,860 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:59:27,860 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:59:27,860 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:59:27,860 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:59:27,860 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:59:27,861 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:59:27,861 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:59:27,861 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:59:27,861 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:59:27,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:59:27,861 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:59:27,862 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:59:27,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:59:27,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:59:27,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:59:27,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:59:27,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:59:27,863 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:59:27,863 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:59:27,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:59:27,863 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:59:27,864 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:59:27,864 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:59:27,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:59:27,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:59:27,864 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:59:27,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:59:27,865 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:59:27,865 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:59:27,866 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:59:27,866 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_0fb1fa4d-c5b1-4e8d-beef-ea6e3cacf3b1/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01c80fcdd0a0da14cc25a34188deb5573e4a4209 [2019-10-22 08:59:27,899 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:59:27,907 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:59:27,910 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:59:27,915 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:59:27,916 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:59:27,916 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0fb1fa4d-c5b1-4e8d-beef-ea6e3cacf3b1/bin/uautomizer/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i [2019-10-22 08:59:27,961 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0fb1fa4d-c5b1-4e8d-beef-ea6e3cacf3b1/bin/uautomizer/data/363015fd6/aebcac5b26244d2c9d629be1c2a2c85d/FLAG75ea0e334 [2019-10-22 08:59:28,335 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:59:28,335 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0fb1fa4d-c5b1-4e8d-beef-ea6e3cacf3b1/sv-benchmarks/c/loop-invgen/apache-get-tag.i [2019-10-22 08:59:28,340 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0fb1fa4d-c5b1-4e8d-beef-ea6e3cacf3b1/bin/uautomizer/data/363015fd6/aebcac5b26244d2c9d629be1c2a2c85d/FLAG75ea0e334 [2019-10-22 08:59:28,351 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0fb1fa4d-c5b1-4e8d-beef-ea6e3cacf3b1/bin/uautomizer/data/363015fd6/aebcac5b26244d2c9d629be1c2a2c85d [2019-10-22 08:59:28,353 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:59:28,354 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:59:28,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:28,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:59:28,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:59:28,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:28" (1/1) ... [2019-10-22 08:59:28,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a328ff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:28, skipping insertion in model container [2019-10-22 08:59:28,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:28" (1/1) ... [2019-10-22 08:59:28,368 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:59:28,383 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:59:28,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:28,519 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:59:28,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:28,614 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:59:28,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:28 WrapperNode [2019-10-22 08:59:28,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:28,616 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:59:28,616 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:59:28,616 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:59:28,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:28" (1/1) ... [2019-10-22 08:59:28,629 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:28" (1/1) ... [2019-10-22 08:59:28,646 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:59:28,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:59:28,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:59:28,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:59:28,654 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:28" (1/1) ... [2019-10-22 08:59:28,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:28" (1/1) ... [2019-10-22 08:59:28,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:28" (1/1) ... [2019-10-22 08:59:28,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:28" (1/1) ... [2019-10-22 08:59:28,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:28" (1/1) ... [2019-10-22 08:59:28,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:28" (1/1) ... [2019-10-22 08:59:28,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:28" (1/1) ... [2019-10-22 08:59:28,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:59:28,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:59:28,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:59:28,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:59:28,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0fb1fa4d-c5b1-4e8d-beef-ea6e3cacf3b1/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:59:28,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:59:28,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:59:29,074 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:59:29,074 INFO L284 CfgBuilder]: Removed 38 assume(true) statements. [2019-10-22 08:59:29,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:29 BoogieIcfgContainer [2019-10-22 08:59:29,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:59:29,076 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:59:29,076 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:59:29,080 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:59:29,081 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:59:29,081 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:59:28" (1/3) ... [2019-10-22 08:59:29,082 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28f8ed99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:59:29, skipping insertion in model container [2019-10-22 08:59:29,083 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:59:29,083 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:28" (2/3) ... [2019-10-22 08:59:29,084 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28f8ed99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:59:29, skipping insertion in model container [2019-10-22 08:59:29,084 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:59:29,084 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:29" (3/3) ... [2019-10-22 08:59:29,086 INFO L371 chiAutomizerObserver]: Analyzing ICFG apache-get-tag.i [2019-10-22 08:59:29,134 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:59:29,135 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:59:29,135 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:59:29,135 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:59:29,135 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:59:29,136 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:59:29,136 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:59:29,137 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:59:29,154 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 63 states. [2019-10-22 08:59:29,181 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 28 [2019-10-22 08:59:29,182 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:59:29,183 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:59:29,188 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-10-22 08:59:29,189 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:29,189 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:59:29,189 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 63 states. [2019-10-22 08:59:29,192 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 28 [2019-10-22 08:59:29,193 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:59:29,194 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:59:29,194 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-10-22 08:59:29,194 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:29,201 INFO L791 eck$LassoCheckResult]: Stem: 31#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~pre2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~nondet6, main_#t~nondet7, main_#t~post8, main_#t~nondet9, main_#t~post10, main_~tagbuf_len~0, main_~t~0;havoc main_~tagbuf_len~0;havoc main_~t~0;main_~tagbuf_len~0 := main_#t~nondet1;havoc main_#t~nondet1; 17#L15true assume main_~tagbuf_len~0 >= 1; 39#L15-1true main_~t~0 := 0;main_#t~pre2 := main_~tagbuf_len~0 - 1;main_~tagbuf_len~0 := main_~tagbuf_len~0 - 1;havoc main_#t~pre2; 4#L18-2true [2019-10-22 08:59:29,205 INFO L793 eck$LassoCheckResult]: Loop: 4#L18-2true assume !false; 25#L19true assume !(main_~t~0 == main_~tagbuf_len~0); 64#L24true assume !(0 != main_#t~nondet3);havoc main_#t~nondet3;__VERIFIER_assert_#in~cond := (if 0 <= main_~t~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 10#L4-6true assume !(0 == __VERIFIER_assert_~cond); 6#L4-8true __VERIFIER_assert_#in~cond := (if main_~t~0 <= main_~tagbuf_len~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 5#L4-9true assume !(0 == __VERIFIER_assert_~cond); 16#L4-11true main_#t~post4 := main_~t~0;main_~t~0 := 1 + main_#t~post4;havoc main_#t~post4; 4#L18-2true [2019-10-22 08:59:29,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:29,210 INFO L82 PathProgramCache]: Analyzing trace with hash 30884, now seen corresponding path program 1 times [2019-10-22 08:59:29,217 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:29,218 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408444722] [2019-10-22 08:59:29,218 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:29,218 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:29,218 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:29,312 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:29,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:29,314 INFO L82 PathProgramCache]: Analyzing trace with hash 868415643, now seen corresponding path program 1 times [2019-10-22 08:59:29,314 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:29,315 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456407355] [2019-10-22 08:59:29,315 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:29,315 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:29,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:29,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:29,353 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:29,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:29,355 INFO L82 PathProgramCache]: Analyzing trace with hash -450162024, now seen corresponding path program 1 times [2019-10-22 08:59:29,356 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:29,356 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257020926] [2019-10-22 08:59:29,356 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:29,356 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:29,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:29,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:29,387 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:29,537 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 18 [2019-10-22 08:59:29,567 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:59:29,568 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:59:29,568 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:59:29,568 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:59:29,568 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 08:59:29,568 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:59:29,568 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:59:29,569 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:59:29,569 INFO L131 ssoRankerPreferences]: Filename of dumped script: apache-get-tag.i_Iteration1_Loop [2019-10-22 08:59:29,569 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:59:29,569 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:59:29,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:59:29,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:59:29,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:59:29,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:59:29,724 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:59:29,725 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0fb1fa4d-c5b1-4e8d-beef-ea6e3cacf3b1/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 08:59:29,732 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:59:29,733 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0fb1fa4d-c5b1-4e8d-beef-ea6e3cacf3b1/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 08:59:29,747 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 08:59:29,747 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:59:29,787 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 08:59:29,789 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:59:29,789 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:59:29,789 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:59:29,789 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:59:29,789 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:59:29,789 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:59:29,789 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:59:29,789 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:59:29,789 INFO L131 ssoRankerPreferences]: Filename of dumped script: apache-get-tag.i_Iteration1_Loop [2019-10-22 08:59:29,789 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:59:29,790 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:59:29,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:59:29,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:59:29,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:59:29,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:59:29,887 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:59:29,890 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:59:29,891 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:59:29,894 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:59:29,894 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:59:29,894 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:59:29,895 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:59:29,895 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:59:29,897 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:59:29,897 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:59:29,904 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:59:29,904 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:59:29,905 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:59:29,905 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:59:29,905 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:59:29,905 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:59:29,906 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:59:29,906 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:59:29,906 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:59:29,913 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 08:59:29,919 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 08:59:29,921 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-10-22 08:59:29,923 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 08:59:29,923 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 08:59:29,924 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 08:59:29,924 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~tagbuf_len~0, ULTIMATE.start_main_~t~0) = 1*ULTIMATE.start_main_~tagbuf_len~0 - 1*ULTIMATE.start_main_~t~0 Supporting invariants [] [2019-10-22 08:59:29,927 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 08:59:29,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:29,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:29,961 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:59:29,962 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:59:29,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:29,980 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 08:59:29,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:59:30,021 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:59:30,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:30,052 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-10-22 08:59:30,054 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 63 states. Second operand 5 states. [2019-10-22 08:59:30,276 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 63 states.. Second operand 5 states. Result 180 states and 240 transitions. Complement of second has 11 states. [2019-10-22 08:59:30,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2019-10-22 08:59:30,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-10-22 08:59:30,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 176 transitions. [2019-10-22 08:59:30,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 176 transitions. Stem has 3 letters. Loop has 7 letters. [2019-10-22 08:59:30,282 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:59:30,282 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 176 transitions. Stem has 10 letters. Loop has 7 letters. [2019-10-22 08:59:30,282 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:59:30,282 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 176 transitions. Stem has 3 letters. Loop has 14 letters. [2019-10-22 08:59:30,283 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:59:30,283 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 180 states and 240 transitions. [2019-10-22 08:59:30,291 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:59:30,298 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 180 states to 0 states and 0 transitions. [2019-10-22 08:59:30,299 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 08:59:30,299 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 08:59:30,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 08:59:30,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:59:30,299 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:59:30,300 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:59:30,300 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:59:30,300 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:59:30,300 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:59:30,300 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:59:30,300 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 08:59:30,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:59:30 BoogieIcfgContainer [2019-10-22 08:59:30,307 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:59:30,307 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:59:30,307 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:59:30,307 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:59:30,308 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:29" (3/4) ... [2019-10-22 08:59:30,311 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:59:30,311 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:59:30,315 INFO L168 Benchmark]: Toolchain (without parser) took 1960.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 943.3 MB in the beginning and 1.0 GB in the end (delta: -64.0 MB). Peak memory consumption was 83.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:30,316 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:30,316 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -198.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:30,317 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.69 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:30,317 INFO L168 Benchmark]: Boogie Preprocessor took 20.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:30,317 INFO L168 Benchmark]: RCFGBuilder took 407.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:30,318 INFO L168 Benchmark]: BuchiAutomizer took 1230.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:30,318 INFO L168 Benchmark]: Witness Printer took 3.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:30,322 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 260.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -198.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.69 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 407.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1230.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.89 ms. Allocated memory is still 1.2 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 affine ranking function tagbuf_len + -1 * t and consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. 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: 34 SDtfs, 63 SDslu, 53 SDs, 0 SdLazy, 113 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital26 mio100 ax100 hnf100 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq158 hnf96 smp73 dnf100 smp100 tf110 neg95 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...