./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 f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e46c9e44-61f6-4dea-88b3-14839a1a9ecc/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e46c9e44-61f6-4dea-88b3-14839a1a9ecc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e46c9e44-61f6-4dea-88b3-14839a1a9ecc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e46c9e44-61f6-4dea-88b3-14839a1a9ecc/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i -s /tmp/vcloud-vcloud-master/worker/run_dir_e46c9e44-61f6-4dea-88b3-14839a1a9ecc/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e46c9e44-61f6-4dea-88b3-14839a1a9ecc/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 0.1.25-f470102 [2019-12-07 12:32:47,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:32:47,906 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:32:47,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:32:47,914 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:32:47,915 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:32:47,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:32:47,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:32:47,918 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:32:47,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:32:47,920 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:32:47,920 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:32:47,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:32:47,921 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:32:47,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:32:47,923 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:32:47,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:32:47,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:32:47,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:32:47,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:32:47,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:32:47,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:32:47,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:32:47,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:32:47,932 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:32:47,932 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:32:47,932 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:32:47,933 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:32:47,933 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:32:47,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:32:47,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:32:47,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:32:47,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:32:47,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:32:47,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:32:47,935 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:32:47,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:32:47,936 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:32:47,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:32:47,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:32:47,937 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:32:47,937 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e46c9e44-61f6-4dea-88b3-14839a1a9ecc/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 12:32:47,949 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:32:47,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:32:47,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:32:47,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:32:47,950 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:32:47,950 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 12:32:47,950 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 12:32:47,951 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 12:32:47,951 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 12:32:47,951 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 12:32:47,951 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 12:32:47,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:32:47,951 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:32:47,951 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 12:32:47,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:32:47,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:32:47,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:32:47,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 12:32:47,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 12:32:47,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 12:32:47,952 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:32:47,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:32:47,952 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 12:32:47,953 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:32:47,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 12:32:47,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:32:47,953 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:32:47,953 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 12:32:47,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:32:47,953 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 12:32:47,953 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:32:47,954 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 12:32:47,954 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 12:32:47,954 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e46c9e44-61f6-4dea-88b3-14839a1a9ecc/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 [2019-12-07 12:32:48,053 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:32:48,061 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:32:48,063 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:32:48,064 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:32:48,064 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:32:48,065 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e46c9e44-61f6-4dea-88b3-14839a1a9ecc/bin/uautomizer/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i [2019-12-07 12:32:48,102 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e46c9e44-61f6-4dea-88b3-14839a1a9ecc/bin/uautomizer/data/bed2c291b/111683aaac4348f1889f8d1068a30e10/FLAG67541c9fe [2019-12-07 12:32:48,456 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:32:48,457 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e46c9e44-61f6-4dea-88b3-14839a1a9ecc/sv-benchmarks/c/loop-invgen/apache-get-tag.i [2019-12-07 12:32:48,461 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e46c9e44-61f6-4dea-88b3-14839a1a9ecc/bin/uautomizer/data/bed2c291b/111683aaac4348f1889f8d1068a30e10/FLAG67541c9fe [2019-12-07 12:32:48,469 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e46c9e44-61f6-4dea-88b3-14839a1a9ecc/bin/uautomizer/data/bed2c291b/111683aaac4348f1889f8d1068a30e10 [2019-12-07 12:32:48,471 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:32:48,472 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:32:48,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:32:48,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:32:48,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:32:48,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:32:48" (1/1) ... [2019-12-07 12:32:48,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15f146fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:32:48, skipping insertion in model container [2019-12-07 12:32:48,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:32:48" (1/1) ... [2019-12-07 12:32:48,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:32:48,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:32:48,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:32:48,595 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:32:48,641 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:32:48,651 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:32:48,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:32:48 WrapperNode [2019-12-07 12:32:48,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:32:48,652 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:32:48,652 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:32:48,652 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:32:48,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:32:48" (1/1) ... [2019-12-07 12:32:48,662 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:32:48" (1/1) ... [2019-12-07 12:32:48,679 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:32:48,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:32:48,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:32:48,680 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:32:48,686 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:32:48" (1/1) ... [2019-12-07 12:32:48,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:32:48" (1/1) ... [2019-12-07 12:32:48,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:32:48" (1/1) ... [2019-12-07 12:32:48,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:32:48" (1/1) ... [2019-12-07 12:32:48,691 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:32:48" (1/1) ... [2019-12-07 12:32:48,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:32:48" (1/1) ... [2019-12-07 12:32:48,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:32:48" (1/1) ... [2019-12-07 12:32:48,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:32:48,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:32:48,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:32:48,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:32:48,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:32:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e46c9e44-61f6-4dea-88b3-14839a1a9ecc/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:32:48,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:32:48,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:32:48,913 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:32:48,913 INFO L287 CfgBuilder]: Removed 38 assume(true) statements. [2019-12-07 12:32:48,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:32:48 BoogieIcfgContainer [2019-12-07 12:32:48,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:32:48,914 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 12:32:48,914 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 12:32:48,916 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 12:32:48,917 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:32:48,917 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 12:32:48" (1/3) ... [2019-12-07 12:32:48,918 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c57c168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:32:48, skipping insertion in model container [2019-12-07 12:32:48,918 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:32:48,918 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:32:48" (2/3) ... [2019-12-07 12:32:48,918 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c57c168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:32:48, skipping insertion in model container [2019-12-07 12:32:48,918 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:32:48,918 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:32:48" (3/3) ... [2019-12-07 12:32:48,919 INFO L371 chiAutomizerObserver]: Analyzing ICFG apache-get-tag.i [2019-12-07 12:32:48,947 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 12:32:48,947 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 12:32:48,947 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 12:32:48,947 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:32:48,947 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:32:48,947 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 12:32:48,947 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:32:48,947 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 12:32:48,958 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 63 states. [2019-12-07 12:32:48,975 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 28 [2019-12-07 12:32:48,975 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:32:48,975 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:32:48,979 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 12:32:48,980 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:32:48,980 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 12:32:48,980 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 63 states. [2019-12-07 12:32:48,983 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 28 [2019-12-07 12:32:48,983 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:32:48,983 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:32:48,983 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 12:32:48,983 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:32:48,988 INFO L794 eck$LassoCheckResult]: Stem: 31#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~pre2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~nondet6, main_#t~nondet7, main_#t~post8, main_#t~nondet9, main_#t~post10, main_~tagbuf_len~0, main_~t~0;havoc main_~tagbuf_len~0;havoc main_~t~0;main_~tagbuf_len~0 := main_#t~nondet1;havoc main_#t~nondet1; 17#L15true assume main_~tagbuf_len~0 >= 1; 39#L15-1true main_~t~0 := 0;main_#t~pre2 := main_~tagbuf_len~0 - 1;main_~tagbuf_len~0 := main_~tagbuf_len~0 - 1;havoc main_#t~pre2; 4#L18-2true [2019-12-07 12:32:48,988 INFO L796 eck$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 [2019-12-07 12:32:48,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:32:48,992 INFO L82 PathProgramCache]: Analyzing trace with hash 30884, now seen corresponding path program 1 times [2019-12-07 12:32:48,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:32:48,998 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097313014] [2019-12-07 12:32:48,998 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:32:49,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:32:49,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:32:49,063 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:32:49,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:32:49,064 INFO L82 PathProgramCache]: Analyzing trace with hash 868415643, now seen corresponding path program 1 times [2019-12-07 12:32:49,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:32:49,065 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493210492] [2019-12-07 12:32:49,065 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:32:49,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:32:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:32:49,087 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:32:49,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:32:49,088 INFO L82 PathProgramCache]: Analyzing trace with hash -450162024, now seen corresponding path program 1 times [2019-12-07 12:32:49,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:32:49,089 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066489692] [2019-12-07 12:32:49,089 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:32:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:32:49,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:32:49,103 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:32:49,178 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 12:32:49,179 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 12:32:49,179 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 12:32:49,179 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 12:32:49,179 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 12:32:49,179 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:32:49,180 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 12:32:49,180 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 12:32:49,180 INFO L133 ssoRankerPreferences]: Filename of dumped script: apache-get-tag.i_Iteration1_Loop [2019-12-07 12:32:49,180 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 12:32:49,180 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 12:32:49,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:32:49,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:32:49,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:32:49,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:32:49,269 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 12:32:49,270 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e46c9e44-61f6-4dea-88b3-14839a1a9ecc/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:32:49,274 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:32:49,274 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e46c9e44-61f6-4dea-88b3-14839a1a9ecc/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:32:49,281 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 12:32:49,282 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:32:49,313 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 12:32:49,314 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 12:32:49,314 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 12:32:49,314 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 12:32:49,314 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 12:32:49,314 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 12:32:49,314 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:32:49,314 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 12:32:49,314 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 12:32:49,314 INFO L133 ssoRankerPreferences]: Filename of dumped script: apache-get-tag.i_Iteration1_Loop [2019-12-07 12:32:49,314 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 12:32:49,315 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 12:32:49,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:32:49,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:32:49,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:32:49,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:32:49,371 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 12:32:49,374 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e46c9e44-61f6-4dea-88b3-14839a1a9ecc/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:32:49,378 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:32:49,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:32:49,380 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:32:49,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:32:49,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:32:49,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:32:49,383 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:32:49,383 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:32:49,386 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e46c9e44-61f6-4dea-88b3-14839a1a9ecc/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:32:49,390 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:32:49,391 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:32:49,391 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:32:49,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:32:49,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:32:49,391 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:32:49,392 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:32:49,392 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:32:49,394 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 12:32:49,400 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 12:32:49,400 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e46c9e44-61f6-4dea-88b3-14839a1a9ecc/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:32:49,404 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 12:32:49,404 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 12:32:49,404 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 12:32:49,405 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 [] [2019-12-07 12:32:49,408 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 12:32:49,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:32:49,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:32:49,437 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:32:49,438 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:32:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:32:49,448 INFO L264 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 12:32:49,449 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:32:49,471 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 12:32:49,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:32:49,493 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 [2019-12-07 12:32:49,494 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 63 states. Second operand 5 states. [2019-12-07 12:32:49,676 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. [2019-12-07 12:32:49,677 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 [2019-12-07 12:32:49,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 12:32:49,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 176 transitions. [2019-12-07 12:32:49,681 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 176 transitions. Stem has 3 letters. Loop has 7 letters. [2019-12-07 12:32:49,682 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:32:49,682 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 176 transitions. Stem has 10 letters. Loop has 7 letters. [2019-12-07 12:32:49,683 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:32:49,683 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 176 transitions. Stem has 3 letters. Loop has 14 letters. [2019-12-07 12:32:49,683 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:32:49,684 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 180 states and 240 transitions. [2019-12-07 12:32:49,691 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 12:32:49,694 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 180 states to 0 states and 0 transitions. [2019-12-07 12:32:49,695 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 12:32:49,696 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 12:32:49,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 12:32:49,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 12:32:49,696 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:32:49,696 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:32:49,697 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:32:49,697 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 12:32:49,697 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 12:32:49,697 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 12:32:49,697 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 12:32:49,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 12:32:49 BoogieIcfgContainer [2019-12-07 12:32:49,703 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 12:32:49,703 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:32:49,703 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:32:49,704 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:32:49,704 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:32:48" (3/4) ... [2019-12-07 12:32:49,707 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 12:32:49,707 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:32:49,709 INFO L168 Benchmark]: Toolchain (without parser) took 1236.05 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.8 MB). Free memory was 948.9 MB in the beginning and 924.8 MB in the end (delta: 24.1 MB). Peak memory consumption was 105.9 MB. Max. memory is 11.5 GB. [2019-12-07 12:32:49,709 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:32:49,710 INFO L168 Benchmark]: CACSL2BoogieTranslator took 178.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.8 MB). Free memory was 948.9 MB in the beginning and 1.1 GB in the end (delta: -126.5 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:32:49,711 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.31 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:32:49,711 INFO L168 Benchmark]: Boogie Preprocessor took 21.14 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:32:49,712 INFO L168 Benchmark]: RCFGBuilder took 212.98 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-12-07 12:32:49,712 INFO L168 Benchmark]: BuchiAutomizer took 788.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 930.2 MB in the end (delta: 117.5 MB). Peak memory consumption was 117.5 MB. Max. memory is 11.5 GB. [2019-12-07 12:32:49,713 INFO L168 Benchmark]: Witness Printer took 3.91 ms. Allocated memory is still 1.1 GB. Free memory was 930.2 MB in the beginning and 924.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:32:49,715 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 178.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.8 MB). Free memory was 948.9 MB in the beginning and 1.1 GB in the end (delta: -126.5 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.31 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.14 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 212.98 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 788.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 930.2 MB in the end (delta: 117.5 MB). Peak memory consumption was 117.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.91 ms. Allocated memory is still 1.1 GB. Free memory was 930.2 MB in the beginning and 924.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. 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 0.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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, 0.0s 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: 10ms 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...