./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/trex02-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bc6676b1-fdce-4a84-8da4-1fd5067cbe8a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_bc6676b1-fdce-4a84-8da4-1fd5067cbe8a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bc6676b1-fdce-4a84-8da4-1fd5067cbe8a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bc6676b1-fdce-4a84-8da4-1fd5067cbe8a/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/trex02-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bc6676b1-fdce-4a84-8da4-1fd5067cbe8a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bc6676b1-fdce-4a84-8da4-1fd5067cbe8a/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 07bb2313a3de352e598d6db901c754bf4b158c72 ......................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:49:57,841 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:49:57,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:49:57,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:49:57,857 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:49:57,858 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:49:57,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:49:57,868 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:49:57,872 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:49:57,875 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:49:57,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:49:57,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:49:57,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:49:57,877 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:49:57,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:49:57,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:49:57,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:49:57,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:49:57,882 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:49:57,883 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:49:57,885 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:49:57,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:49:57,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:49:57,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:49:57,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:49:57,897 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:49:57,897 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:49:57,898 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:49:57,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:49:57,900 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:49:57,901 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:49:57,902 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:49:57,902 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:49:57,903 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:49:57,904 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:49:57,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:49:57,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:49:57,907 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:49:57,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:49:57,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:49:57,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:49:57,911 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bc6676b1-fdce-4a84-8da4-1fd5067cbe8a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-25 08:49:57,936 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:49:57,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:49:57,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:49:57,937 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:49:57,937 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:49:57,937 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:49:57,937 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:49:57,938 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:49:57,938 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:49:57,938 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:49:57,938 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:49:57,938 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:49:57,938 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:49:57,938 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:49:57,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:49:57,939 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:49:57,939 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:49:57,939 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:49:57,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:49:57,939 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:49:57,939 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:49:57,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:49:57,939 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:49:57,939 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:49:57,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:49:57,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:49:57,940 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:49:57,940 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:49:57,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:49:57,941 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:49:57,941 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:49:57,941 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:49:57,942 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_bc6676b1-fdce-4a84-8da4-1fd5067cbe8a/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 -> 07bb2313a3de352e598d6db901c754bf4b158c72 [2019-11-25 08:49:58,079 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:49:58,089 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:49:58,092 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:49:58,093 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:49:58,094 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:49:58,094 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bc6676b1-fdce-4a84-8da4-1fd5067cbe8a/bin/uautomizer/../../sv-benchmarks/c/loops/trex02-1.c [2019-11-25 08:49:58,138 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bc6676b1-fdce-4a84-8da4-1fd5067cbe8a/bin/uautomizer/data/116784ab8/68e30f0df1c14c918b0e6d240cd85a37/FLAGc4a661982 [2019-11-25 08:49:58,531 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:49:58,532 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bc6676b1-fdce-4a84-8da4-1fd5067cbe8a/sv-benchmarks/c/loops/trex02-1.c [2019-11-25 08:49:58,537 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bc6676b1-fdce-4a84-8da4-1fd5067cbe8a/bin/uautomizer/data/116784ab8/68e30f0df1c14c918b0e6d240cd85a37/FLAGc4a661982 [2019-11-25 08:49:58,549 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bc6676b1-fdce-4a84-8da4-1fd5067cbe8a/bin/uautomizer/data/116784ab8/68e30f0df1c14c918b0e6d240cd85a37 [2019-11-25 08:49:58,552 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:49:58,553 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:49:58,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:49:58,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:49:58,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:49:58,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:49:58" (1/1) ... [2019-11-25 08:49:58,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d46a519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:58, skipping insertion in model container [2019-11-25 08:49:58,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:49:58" (1/1) ... [2019-11-25 08:49:58,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:49:58,581 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:49:58,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:49:58,722 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:49:58,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:49:58,856 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:49:58,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:58 WrapperNode [2019-11-25 08:49:58,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:49:58,858 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:49:58,858 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:49:58,858 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:49:58,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:58" (1/1) ... [2019-11-25 08:49:58,872 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:58" (1/1) ... [2019-11-25 08:49:58,889 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:49:58,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:49:58,890 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:49:58,890 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:49:58,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:58" (1/1) ... [2019-11-25 08:49:58,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:58" (1/1) ... [2019-11-25 08:49:58,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:58" (1/1) ... [2019-11-25 08:49:58,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:58" (1/1) ... [2019-11-25 08:49:58,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:58" (1/1) ... [2019-11-25 08:49:58,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:58" (1/1) ... [2019-11-25 08:49:58,907 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:58" (1/1) ... [2019-11-25 08:49:58,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:49:58,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:49:58,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:49:58,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:49:58,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc6676b1-fdce-4a84-8da4-1fd5067cbe8a/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 [2019-11-25 08:49:58,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:49:58,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:49:59,131 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:49:59,131 INFO L284 CfgBuilder]: Removed 11 assume(true) statements. [2019-11-25 08:49:59,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:49:59 BoogieIcfgContainer [2019-11-25 08:49:59,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:49:59,133 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:49:59,133 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:49:59,137 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:49:59,137 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:49:59,137 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:49:58" (1/3) ... [2019-11-25 08:49:59,138 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1dee1d76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:49:59, skipping insertion in model container [2019-11-25 08:49:59,139 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:49:59,139 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:58" (2/3) ... [2019-11-25 08:49:59,139 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1dee1d76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:49:59, skipping insertion in model container [2019-11-25 08:49:59,139 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:49:59,139 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:49:59" (3/3) ... [2019-11-25 08:49:59,141 INFO L371 chiAutomizerObserver]: Analyzing ICFG trex02-1.c [2019-11-25 08:49:59,182 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:49:59,182 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:49:59,182 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:49:59,183 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:49:59,183 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:49:59,183 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:49:59,183 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:49:59,183 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:49:59,195 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-11-25 08:49:59,214 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:49:59,214 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:49:59,214 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:49:59,220 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-25 08:49:59,220 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:49:59,220 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:49:59,220 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-11-25 08:49:59,222 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:49:59,222 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:49:59,222 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:49:59,222 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-25 08:49:59,222 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:49:59,230 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue ~x~0 := 0; 3#L-1true havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_~c~0;~x~0 := main_#t~nondet1;havoc main_#t~nondet1; 11#L15-1true [2019-11-25 08:49:59,230 INFO L796 eck$LassoCheckResult]: Loop: 11#L15-1true assume !!(~x~0 > 0);main_~c~0 := main_#t~nondet2;havoc main_#t~nondet2; 6#L23true assume !(0 != main_~c~0 % 256);havoc foo_#t~post0;foo_#t~post0 := ~x~0;~x~0 := foo_#t~post0 - 1;havoc foo_#t~post0; 11#L15-1true [2019-11-25 08:49:59,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:59,235 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-11-25 08:49:59,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:59,241 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445084711] [2019-11-25 08:49:59,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:59,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:59,308 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:59,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:59,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1319, now seen corresponding path program 1 times [2019-11-25 08:49:59,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:59,310 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924021797] [2019-11-25 08:49:59,310 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:59,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:59,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:59,323 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:59,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:59,325 INFO L82 PathProgramCache]: Analyzing trace with hash 925801, now seen corresponding path program 1 times [2019-11-25 08:49:59,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:59,325 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188344464] [2019-11-25 08:49:59,325 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:59,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:59,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:59,336 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:59,403 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:49:59,404 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:49:59,404 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:49:59,404 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:49:59,405 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:49:59,405 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:59,405 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:49:59,405 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:49:59,405 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex02-1.c_Iteration1_Loop [2019-11-25 08:49:59,406 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:49:59,406 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:49:59,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:59,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:59,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:59,586 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:49:59,586 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc6676b1-fdce-4a84-8da4-1fd5067cbe8a/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 [2019-11-25 08:49:59,597 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:49:59,597 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:49:59,610 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:49:59,610 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0, ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_~c~0=0, ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc6676b1-fdce-4a84-8da4-1fd5067cbe8a/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 [2019-11-25 08:49:59,617 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:49:59,617 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:49:59,620 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:49:59,620 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_foo_#t~post0=0} Honda state: {ULTIMATE.start_foo_#t~post0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc6676b1-fdce-4a84-8da4-1fd5067cbe8a/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) [2019-11-25 08:49:59,641 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:49:59,641 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc6676b1-fdce-4a84-8da4-1fd5067cbe8a/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 [2019-11-25 08:49:59,660 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:49:59,661 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:49:59,674 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:49:59,676 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:49:59,677 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:49:59,677 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:49:59,677 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:49:59,677 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:49:59,677 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:59,677 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:49:59,678 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:49:59,678 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex02-1.c_Iteration1_Loop [2019-11-25 08:49:59,678 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:49:59,678 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:49:59,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:59,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:59,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:59,803 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:49:59,808 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc6676b1-fdce-4a84-8da4-1fd5067cbe8a/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) [2019-11-25 08:49:59,817 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 [2019-11-25 08:49:59,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:59,819 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:59,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:59,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:59,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:59,824 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:49:59,824 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:59,832 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc6676b1-fdce-4a84-8da4-1fd5067cbe8a/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:49:59,841 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 [2019-11-25 08:49:59,843 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:59,843 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:59,843 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:59,843 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:59,843 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:59,849 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:49:59,849 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:59,855 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:49:59,859 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-25 08:49:59,859 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc6676b1-fdce-4a84-8da4-1fd5067cbe8a/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:49:59,874 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:49:59,874 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:49:59,875 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:49:59,875 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(~x~0) = 1*~x~0 Supporting invariants [] [2019-11-25 08:49:59,881 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:59,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:59,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:59,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:49:59,929 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:49:59,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:59,942 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:49:59,942 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:49:59,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:49:59,974 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-25 08:49:59,976 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 3 states. [2019-11-25 08:50:00,032 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 3 states. Result 24 states and 31 transitions. Complement of second has 7 states. [2019-11-25 08:50:00,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-25 08:50:00,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:50:00,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2019-11-25 08:50:00,038 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 2 letters. [2019-11-25 08:50:00,038 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:50:00,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-25 08:50:00,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:50:00,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 4 letters. [2019-11-25 08:50:00,040 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:50:00,040 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2019-11-25 08:50:00,046 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:50:00,048 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2019-11-25 08:50:00,049 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:50:00,049 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:50:00,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:50:00,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:50:00,050 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:50:00,050 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:50:00,050 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:50:00,050 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:50:00,051 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:50:00,051 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:50:00,051 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-25 08:50:00,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:50:00 BoogieIcfgContainer [2019-11-25 08:50:00,056 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:50:00,057 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:50:00,057 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:50:00,058 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:50:00,058 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:49:59" (3/4) ... [2019-11-25 08:50:00,062 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:50:00,062 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:50:00,065 INFO L168 Benchmark]: Toolchain (without parser) took 1510.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 948.8 MB in the beginning and 1.0 GB in the end (delta: -92.2 MB). Peak memory consumption was 77.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:00,065 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:50:00,066 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 948.8 MB in the beginning and 1.2 GB in the end (delta: -214.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:00,067 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:50:00,068 INFO L168 Benchmark]: Boogie Preprocessor took 18.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:50:00,069 INFO L168 Benchmark]: RCFGBuilder took 224.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:00,069 INFO L168 Benchmark]: BuchiAutomizer took 923.11 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: 102.5 MB). Peak memory consumption was 102.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:00,070 INFO L168 Benchmark]: Witness Printer took 4.63 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. [2019-11-25 08:50:00,077 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 304.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 948.8 MB in the beginning and 1.2 GB in the end (delta: -214.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 224.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 923.11 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: 102.5 MB). Peak memory consumption was 102.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.63 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 x and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. 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: 6 SDtfs, 7 SDslu, 8 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax100 hnf100 lsp55 ukn100 mio100 lsp100 div469 bol100 ite100 ukn100 eq151 hnf43 smp90 dnf100 smp100 tf107 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 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...