./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/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 94419cb5ed7b14b2ed497048686126b88cc40ca2 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 23:48:22,763 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 23:48:22,764 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 23:48:22,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 23:48:22,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 23:48:22,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 23:48:22,781 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 23:48:22,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 23:48:22,793 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 23:48:22,797 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 23:48:22,798 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 23:48:22,799 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 23:48:22,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 23:48:22,801 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 23:48:22,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 23:48:22,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 23:48:22,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 23:48:22,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 23:48:22,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 23:48:22,809 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 23:48:22,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 23:48:22,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 23:48:22,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 23:48:22,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 23:48:22,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 23:48:22,819 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 23:48:22,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 23:48:22,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 23:48:22,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 23:48:22,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 23:48:22,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 23:48:22,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 23:48:22,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 23:48:22,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 23:48:22,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 23:48:22,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 23:48:22,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 23:48:22,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 23:48:22,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 23:48:22,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 23:48:22,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 23:48:22,829 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-19 23:48:22,853 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 23:48:22,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 23:48:22,854 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 23:48:22,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 23:48:22,855 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 23:48:22,855 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 23:48:22,855 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 23:48:22,855 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 23:48:22,856 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 23:48:22,856 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 23:48:22,856 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 23:48:22,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 23:48:22,856 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 23:48:22,856 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 23:48:22,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 23:48:22,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 23:48:22,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 23:48:22,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 23:48:22,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 23:48:22,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 23:48:22,858 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 23:48:22,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 23:48:22,858 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 23:48:22,858 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 23:48:22,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 23:48:22,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 23:48:22,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 23:48:22,859 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 23:48:22,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 23:48:22,859 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 23:48:22,859 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 23:48:22,860 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 23:48:22,860 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_0d843876-dab6-45cb-aad5-5a98e8edf8ce/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 -> 94419cb5ed7b14b2ed497048686126b88cc40ca2 [2019-11-19 23:48:23,027 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 23:48:23,042 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 23:48:23,045 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 23:48:23,046 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 23:48:23,046 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 23:48:23,047 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/bin/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c [2019-11-19 23:48:23,100 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/bin/uautomizer/data/a95c21335/8f6a10ced3d742b7bd98d11454efbe5a/FLAGeed8bd4da [2019-11-19 23:48:23,513 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 23:48:23,513 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c [2019-11-19 23:48:23,522 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/bin/uautomizer/data/a95c21335/8f6a10ced3d742b7bd98d11454efbe5a/FLAGeed8bd4da [2019-11-19 23:48:23,884 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/bin/uautomizer/data/a95c21335/8f6a10ced3d742b7bd98d11454efbe5a [2019-11-19 23:48:23,887 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 23:48:23,887 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 23:48:23,888 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 23:48:23,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 23:48:23,892 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 23:48:23,892 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:48:23" (1/1) ... [2019-11-19 23:48:23,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60921b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:48:23, skipping insertion in model container [2019-11-19 23:48:23,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:48:23" (1/1) ... [2019-11-19 23:48:23,901 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 23:48:23,924 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 23:48:24,213 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:48:24,216 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 23:48:24,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:48:24,266 INFO L192 MainTranslator]: Completed translation [2019-11-19 23:48:24,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:48:24 WrapperNode [2019-11-19 23:48:24,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 23:48:24,268 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 23:48:24,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 23:48:24,268 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 23:48:24,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:48:24" (1/1) ... [2019-11-19 23:48:24,284 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:48:24" (1/1) ... [2019-11-19 23:48:24,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 23:48:24,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 23:48:24,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 23:48:24,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 23:48:24,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:48:24" (1/1) ... [2019-11-19 23:48:24,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:48:24" (1/1) ... [2019-11-19 23:48:24,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:48:24" (1/1) ... [2019-11-19 23:48:24,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:48:24" (1/1) ... [2019-11-19 23:48:24,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:48:24" (1/1) ... [2019-11-19 23:48:24,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:48:24" (1/1) ... [2019-11-19 23:48:24,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:48:24" (1/1) ... [2019-11-19 23:48:24,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 23:48:24,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 23:48:24,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 23:48:24,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 23:48:24,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:48:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/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 [2019-11-19 23:48:24,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 23:48:24,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 23:48:24,933 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 23:48:24,933 INFO L285 CfgBuilder]: Removed 30 assume(true) statements. [2019-11-19 23:48:24,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:48:24 BoogieIcfgContainer [2019-11-19 23:48:24,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 23:48:24,935 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 23:48:24,935 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 23:48:24,937 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 23:48:24,938 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 23:48:24,938 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 11:48:23" (1/3) ... [2019-11-19 23:48:24,938 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ab64bdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 11:48:24, skipping insertion in model container [2019-11-19 23:48:24,939 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 23:48:24,939 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:48:24" (2/3) ... [2019-11-19 23:48:24,939 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ab64bdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 11:48:24, skipping insertion in model container [2019-11-19 23:48:24,939 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 23:48:24,939 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:48:24" (3/3) ... [2019-11-19 23:48:24,940 INFO L371 chiAutomizerObserver]: Analyzing ICFG soft_float_4-2a.c.cil.c [2019-11-19 23:48:24,976 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 23:48:24,977 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 23:48:24,977 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 23:48:24,977 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 23:48:24,977 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 23:48:24,977 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 23:48:24,978 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 23:48:24,978 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 23:48:24,992 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states. [2019-11-19 23:48:25,015 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2019-11-19 23:48:25,016 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:48:25,016 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:48:25,021 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-19 23:48:25,022 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 23:48:25,022 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 23:48:25,022 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states. [2019-11-19 23:48:25,027 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2019-11-19 23:48:25,027 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:48:25,027 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:48:25,028 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-19 23:48:25,028 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 23:48:25,035 INFO L794 eck$LassoCheckResult]: Stem: 36#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_#t~ret9, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet1;havoc main_#t~nondet1;main_~ea~2 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~b~0;main_~mb~2 := main_#t~nondet3;havoc main_#t~nondet3;main_~eb~2 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 58#L20true assume !(0 == base2flt_~m % 4294967296); 23#L26true assume !(base2flt_~m % 4294967296 < 16777216); 41#L48-2true [2019-11-19 23:48:25,035 INFO L796 eck$LassoCheckResult]: Loop: 41#L48-2true assume !false; 53#L49true assume base2flt_~m % 4294967296 >= 33554432; 70#L50true assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 41#L48-2true [2019-11-19 23:48:25,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:48:25,041 INFO L82 PathProgramCache]: Analyzing trace with hash 30973, now seen corresponding path program 1 times [2019-11-19 23:48:25,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:48:25,049 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985618844] [2019-11-19 23:48:25,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:48:25,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:48:25,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:48:25,170 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985618844] [2019-11-19 23:48:25,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:48:25,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-19 23:48:25,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035759198] [2019-11-19 23:48:25,176 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 23:48:25,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:48:25,176 INFO L82 PathProgramCache]: Analyzing trace with hash 73619, now seen corresponding path program 1 times [2019-11-19 23:48:25,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:48:25,176 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086318907] [2019-11-19 23:48:25,177 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:48:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:25,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:25,207 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:48:25,254 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 23:48:25,255 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 23:48:25,255 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 23:48:25,255 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 23:48:25,255 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 23:48:25,255 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:25,256 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 23:48:25,256 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 23:48:25,256 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration1_Loop [2019-11-19 23:48:25,256 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 23:48:25,256 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 23:48:25,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:25,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:25,413 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 23:48:25,415 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 23:48:25,426 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 23:48:25,426 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 23:48:25,444 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 23:48:25,444 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:25,453 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 23:48:25,456 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 23:48:25,456 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 23:48:25,456 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 23:48:25,456 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 23:48:25,456 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 23:48:25,456 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:25,456 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 23:48:25,456 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 23:48:25,457 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration1_Loop [2019-11-19 23:48:25,457 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 23:48:25,457 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 23:48:25,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:25,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:25,575 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 23:48:25,579 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/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) [2019-11-19 23:48:25,591 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 [2019-11-19 23:48:25,593 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:48:25,593 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:48:25,594 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:48:25,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:48:25,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:48:25,597 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:48:25,598 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:25,601 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 23:48:25,625 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-19 23:48:25,625 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/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) [2019-11-19 23:48:25,632 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 23:48:25,632 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-19 23:48:25,633 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 23:48:25,633 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-11-19 23:48:25,639 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:25,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:48:25,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:48:25,689 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 23:48:25,691 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:48:25,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:48:25,704 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 23:48:25,704 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:48:25,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:48:25,720 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-19 23:48:25,721 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 72 states. Second operand 3 states. [2019-11-19 23:48:25,809 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 72 states.. Second operand 3 states. Result 212 states and 334 transitions. Complement of second has 6 states. [2019-11-19 23:48:25,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-19 23:48:25,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-19 23:48:25,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 219 transitions. [2019-11-19 23:48:25,813 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 219 transitions. Stem has 3 letters. Loop has 3 letters. [2019-11-19 23:48:25,814 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:48:25,814 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 219 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-19 23:48:25,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:48:25,815 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 219 transitions. Stem has 3 letters. Loop has 6 letters. [2019-11-19 23:48:25,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:48:25,816 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 212 states and 334 transitions. [2019-11-19 23:48:25,825 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2019-11-19 23:48:25,830 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 212 states to 56 states and 81 transitions. [2019-11-19 23:48:25,831 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2019-11-19 23:48:25,832 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2019-11-19 23:48:25,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 81 transitions. [2019-11-19 23:48:25,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 23:48:25,833 INFO L688 BuchiCegarLoop]: Abstraction has 56 states and 81 transitions. [2019-11-19 23:48:25,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 81 transitions. [2019-11-19 23:48:25,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 45. [2019-11-19 23:48:25,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-11-19 23:48:25,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 69 transitions. [2019-11-19 23:48:25,855 INFO L711 BuchiCegarLoop]: Abstraction has 45 states and 69 transitions. [2019-11-19 23:48:25,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:48:25,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 23:48:25,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 23:48:25,858 INFO L87 Difference]: Start difference. First operand 45 states and 69 transitions. Second operand 3 states. [2019-11-19 23:48:25,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:48:25,898 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2019-11-19 23:48:25,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 23:48:25,898 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2019-11-19 23:48:25,899 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-11-19 23:48:25,900 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 30 transitions. [2019-11-19 23:48:25,900 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2019-11-19 23:48:25,900 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2019-11-19 23:48:25,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2019-11-19 23:48:25,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 23:48:25,901 INFO L688 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-19 23:48:25,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2019-11-19 23:48:25,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-19 23:48:25,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-19 23:48:25,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2019-11-19 23:48:25,903 INFO L711 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-19 23:48:25,903 INFO L591 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-19 23:48:25,903 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 23:48:25,903 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. [2019-11-19 23:48:25,904 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-11-19 23:48:25,904 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:48:25,904 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:48:25,904 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 23:48:25,904 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 23:48:25,905 INFO L794 eck$LassoCheckResult]: Stem: 413#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_#t~ret9, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet1;havoc main_#t~nondet1;main_~ea~2 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~b~0;main_~mb~2 := main_#t~nondet3;havoc main_#t~nondet3;main_~eb~2 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 412#L20 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 403#L70 base2flt_#res := base2flt_~__retres4~0; 404#L71 main_#t~ret5 := base2flt_#res;main_~zero~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 409#L20-1 assume !(0 == base2flt_~m % 4294967296); 411#L26-1 assume !(base2flt_~m % 4294967296 < 16777216); 406#L48-5 [2019-11-19 23:48:25,905 INFO L796 eck$LassoCheckResult]: Loop: 406#L48-5 assume !false; 398#L49-1 assume base2flt_~m % 4294967296 >= 33554432; 400#L50-1 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 406#L48-5 [2019-11-19 23:48:25,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:48:25,905 INFO L82 PathProgramCache]: Analyzing trace with hash 921737699, now seen corresponding path program 1 times [2019-11-19 23:48:25,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:48:25,906 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39733157] [2019-11-19 23:48:25,906 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:48:25,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:25,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:25,925 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:48:25,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:48:25,926 INFO L82 PathProgramCache]: Analyzing trace with hash 136178, now seen corresponding path program 1 times [2019-11-19 23:48:25,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:48:25,926 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512563000] [2019-11-19 23:48:25,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:48:25,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:25,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:25,938 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:48:25,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:48:25,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1761973968, now seen corresponding path program 1 times [2019-11-19 23:48:25,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:48:25,939 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316283546] [2019-11-19 23:48:25,939 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:48:25,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:25,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:25,963 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:48:25,987 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 23:48:25,988 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 23:48:25,988 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 23:48:25,988 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 23:48:25,988 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 23:48:25,988 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:25,988 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 23:48:25,988 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 23:48:25,988 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration2_Loop [2019-11-19 23:48:25,989 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 23:48:25,989 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 23:48:25,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:25,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:26,089 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 23:48:26,089 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/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) [2019-11-19 23:48:26,101 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 23:48:26,101 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:26,108 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 23:48:26,109 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=-1} Honda state: {ULTIMATE.start_base2flt_~m=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/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) [2019-11-19 23:48:26,123 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 23:48:26,123 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/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) [2019-11-19 23:48:26,141 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 23:48:26,141 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:26,149 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 23:48:26,151 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 23:48:26,151 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 23:48:26,151 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 23:48:26,151 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 23:48:26,151 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 23:48:26,151 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:26,152 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 23:48:26,152 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 23:48:26,152 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration2_Loop [2019-11-19 23:48:26,152 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 23:48:26,152 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 23:48:26,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:26,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:26,269 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 23:48:26,270 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:26,280 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 [2019-11-19 23:48:26,282 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:48:26,282 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:48:26,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:48:26,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:48:26,283 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:48:26,285 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:48:26,285 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:48:26,291 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 23:48:26,309 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 [2019-11-19 23:48:26,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:48:26,311 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:48:26,311 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:48:26,311 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:48:26,311 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:48:26,312 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:48:26,313 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:26,315 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 23:48:26,320 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-19 23:48:26,320 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 23:48:26,332 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 23:48:26,333 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-19 23:48:26,333 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 23:48:26,333 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-11-19 23:48:26,335 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:26,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:48:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:48:26,378 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 23:48:26,379 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:48:26,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:48:26,385 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 23:48:26,385 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:48:26,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:48:26,386 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-19 23:48:26,386 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 30 transitions. cyclomatic complexity: 11 Second operand 3 states. [2019-11-19 23:48:26,402 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 30 transitions. cyclomatic complexity: 11. Second operand 3 states. Result 40 states and 50 transitions. Complement of second has 5 states. [2019-11-19 23:48:26,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-19 23:48:26,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-19 23:48:26,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2019-11-19 23:48:26,406 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-19 23:48:26,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:48:26,407 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-19 23:48:26,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:48:26,407 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 6 letters. [2019-11-19 23:48:26,408 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:48:26,408 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 50 transitions. [2019-11-19 23:48:26,409 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2019-11-19 23:48:26,409 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 37 states and 46 transitions. [2019-11-19 23:48:26,409 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2019-11-19 23:48:26,410 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2019-11-19 23:48:26,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 46 transitions. [2019-11-19 23:48:26,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 23:48:26,410 INFO L688 BuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2019-11-19 23:48:26,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 46 transitions. [2019-11-19 23:48:26,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 26. [2019-11-19 23:48:26,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-19 23:48:26,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2019-11-19 23:48:26,413 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-19 23:48:26,413 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-19 23:48:26,413 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-19 23:48:26,413 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2019-11-19 23:48:26,414 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-11-19 23:48:26,414 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:48:26,414 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:48:26,414 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 23:48:26,414 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 23:48:26,415 INFO L794 eck$LassoCheckResult]: Stem: 525#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_#t~ret9, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet1;havoc main_#t~nondet1;main_~ea~2 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~b~0;main_~mb~2 := main_#t~nondet3;havoc main_#t~nondet3;main_~eb~2 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 524#L20 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 515#L70 base2flt_#res := base2flt_~__retres4~0; 516#L71 main_#t~ret5 := base2flt_#res;main_~zero~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 521#L20-1 assume !(0 == base2flt_~m % 4294967296); 523#L26-1 assume base2flt_~m % 4294967296 < 16777216; 528#L38-3 [2019-11-19 23:48:26,415 INFO L796 eck$LassoCheckResult]: Loop: 528#L38-3 assume !false; 519#L29-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 520#L38-2 assume base2flt_~m % 4294967296 < 16777216; 528#L38-3 [2019-11-19 23:48:26,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:48:26,415 INFO L82 PathProgramCache]: Analyzing trace with hash 921737673, now seen corresponding path program 1 times [2019-11-19 23:48:26,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:48:26,416 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334485480] [2019-11-19 23:48:26,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:48:26,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:26,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:26,461 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:48:26,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:48:26,462 INFO L82 PathProgramCache]: Analyzing trace with hash 110419, now seen corresponding path program 1 times [2019-11-19 23:48:26,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:48:26,462 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198963484] [2019-11-19 23:48:26,462 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:48:26,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:26,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:26,477 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:48:26,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:48:26,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1761173643, now seen corresponding path program 1 times [2019-11-19 23:48:26,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:48:26,478 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064827454] [2019-11-19 23:48:26,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:48:26,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:26,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:26,513 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:48:26,542 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 23:48:26,542 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 23:48:26,542 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 23:48:26,543 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 23:48:26,543 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 23:48:26,543 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:26,543 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 23:48:26,543 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 23:48:26,543 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration3_Loop [2019-11-19 23:48:26,544 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 23:48:26,544 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 23:48:26,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:26,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:26,631 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 23:48:26,631 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 23:48:26,645 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 23:48:26,645 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:26,654 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 23:48:26,654 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=0} Honda state: {ULTIMATE.start_base2flt_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 23:48:26,673 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 23:48:26,673 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:26,688 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 23:48:26,688 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 23:48:26,697 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 23:48:26,699 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 23:48:26,699 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 23:48:26,699 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 23:48:26,699 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 23:48:26,699 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 23:48:26,699 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:26,700 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 23:48:26,700 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 23:48:26,700 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration3_Loop [2019-11-19 23:48:26,700 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 23:48:26,700 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 23:48:26,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:26,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:26,796 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 23:48:26,796 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:26,804 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 [2019-11-19 23:48:26,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:48:26,806 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:48:26,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:48:26,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:48:26,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:48:26,809 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:48:26,809 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:48:26,812 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/bin/uautomizer/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:26,828 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 [2019-11-19 23:48:26,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:48:26,833 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:48:26,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:48:26,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:48:26,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:48:26,834 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:48:26,834 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:48:26,837 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 23:48:26,840 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-19 23:48:26,840 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/bin/uautomizer/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:26,848 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 23:48:26,850 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-19 23:48:26,850 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 23:48:26,850 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2019-11-19 23:48:26,858 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-19 23:48:26,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:48:26,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:48:26,892 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 23:48:26,892 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:48:26,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:48:26,897 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 23:48:26,897 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:48:26,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:48:26,928 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 [2019-11-19 23:48:26,928 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 12 Second operand 4 states. [2019-11-19 23:48:26,946 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 12. Second operand 4 states. Result 44 states and 55 transitions. Complement of second has 5 states. [2019-11-19 23:48:26,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-19 23:48:26,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-19 23:48:26,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2019-11-19 23:48:26,947 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-19 23:48:26,948 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:48:26,948 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-19 23:48:26,948 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:48:26,948 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 6 letters. [2019-11-19 23:48:26,948 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:48:26,949 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 55 transitions. [2019-11-19 23:48:26,949 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-11-19 23:48:26,950 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 41 states and 51 transitions. [2019-11-19 23:48:26,950 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2019-11-19 23:48:26,951 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2019-11-19 23:48:26,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 51 transitions. [2019-11-19 23:48:26,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 23:48:26,951 INFO L688 BuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2019-11-19 23:48:26,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 51 transitions. [2019-11-19 23:48:26,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 29. [2019-11-19 23:48:26,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-19 23:48:26,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2019-11-19 23:48:26,954 INFO L711 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-11-19 23:48:26,954 INFO L591 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-11-19 23:48:26,954 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-19 23:48:26,954 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 38 transitions. [2019-11-19 23:48:26,954 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-19 23:48:26,955 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:48:26,955 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:48:26,956 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:48:26,957 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 23:48:26,957 INFO L794 eck$LassoCheckResult]: Stem: 644#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_#t~ret9, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet1;havoc main_#t~nondet1;main_~ea~2 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~b~0;main_~mb~2 := main_#t~nondet3;havoc main_#t~nondet3;main_~eb~2 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 643#L20 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 634#L70 base2flt_#res := base2flt_~__retres4~0; 635#L71 main_#t~ret5 := base2flt_#res;main_~zero~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 640#L20-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 623#L70-1 base2flt_#res := base2flt_~__retres4~0; 624#L71-1 main_#t~ret6 := base2flt_#res;main_~a~0 := main_#t~ret6;havoc main_#t~ret6;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 633#L20-2 assume !(0 == base2flt_~m % 4294967296); 641#L26-2 assume !(base2flt_~m % 4294967296 < 16777216); 630#L48-8 [2019-11-19 23:48:26,957 INFO L796 eck$LassoCheckResult]: Loop: 630#L48-8 assume !false; 621#L49-2 assume base2flt_~m % 4294967296 >= 33554432; 622#L50-2 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 630#L48-8 [2019-11-19 23:48:26,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:48:26,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951196, now seen corresponding path program 1 times [2019-11-19 23:48:26,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:48:26,958 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258867588] [2019-11-19 23:48:26,958 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:48:26,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:26,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:26,977 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:48:26,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:48:26,977 INFO L82 PathProgramCache]: Analyzing trace with hash 198737, now seen corresponding path program 1 times [2019-11-19 23:48:26,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:48:26,978 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081332389] [2019-11-19 23:48:26,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:48:26,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:26,987 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:48:26,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:48:26,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1766695638, now seen corresponding path program 1 times [2019-11-19 23:48:26,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:48:26,988 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145929999] [2019-11-19 23:48:26,988 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:48:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:27,033 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:48:27,068 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 23:48:27,068 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 23:48:27,068 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 23:48:27,068 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 23:48:27,068 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 23:48:27,068 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:27,069 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 23:48:27,069 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 23:48:27,069 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration4_Loop [2019-11-19 23:48:27,069 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 23:48:27,069 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 23:48:27,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:27,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:27,166 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 23:48:27,166 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/bin/uautomizer/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:27,188 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 23:48:27,188 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 23:48:27,208 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 23:48:27,209 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 23:48:27,237 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:27,239 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 23:48:27,239 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 23:48:27,239 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 23:48:27,240 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 23:48:27,240 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 23:48:27,240 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:27,240 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 23:48:27,240 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 23:48:27,240 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration4_Loop [2019-11-19 23:48:27,240 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 23:48:27,240 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 23:48:27,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Exception during sending of exit command (exit): Broken pipe [2019-11-19 23:48:27,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:27,348 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 23:48:27,349 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/bin/uautomizer/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:27,356 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 [2019-11-19 23:48:27,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:48:27,358 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:48:27,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:48:27,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:48:27,358 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:48:27,359 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:48:27,359 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:48:27,361 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 23:48:27,362 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-19 23:48:27,362 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/bin/uautomizer/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:27,365 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 23:48:27,365 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-19 23:48:27,366 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 23:48:27,366 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-11-19 23:48:27,367 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-19 23:48:27,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:48:27,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:48:27,394 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 23:48:27,395 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:48:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:48:27,400 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 23:48:27,400 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:48:27,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:48:27,401 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-19 23:48:27,401 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 13 Second operand 3 states. [2019-11-19 23:48:27,411 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 13. Second operand 3 states. Result 32 states and 42 transitions. Complement of second has 4 states. [2019-11-19 23:48:27,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-19 23:48:27,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-19 23:48:27,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2019-11-19 23:48:27,412 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-19 23:48:27,413 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:48:27,413 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 12 letters. Loop has 3 letters. [2019-11-19 23:48:27,413 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:48:27,413 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 6 letters. [2019-11-19 23:48:27,413 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:48:27,413 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2019-11-19 23:48:27,414 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 23:48:27,415 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 34 transitions. [2019-11-19 23:48:27,415 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-11-19 23:48:27,415 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-11-19 23:48:27,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 34 transitions. [2019-11-19 23:48:27,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 23:48:27,415 INFO L688 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-19 23:48:27,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 34 transitions. [2019-11-19 23:48:27,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-11-19 23:48:27,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-19 23:48:27,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2019-11-19 23:48:27,418 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-19 23:48:27,418 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-19 23:48:27,418 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-19 23:48:27,418 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2019-11-19 23:48:27,419 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 23:48:27,419 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:48:27,419 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:48:27,419 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:48:27,420 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 23:48:27,420 INFO L794 eck$LassoCheckResult]: Stem: 757#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_#t~ret9, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet1;havoc main_#t~nondet1;main_~ea~2 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~b~0;main_~mb~2 := main_#t~nondet3;havoc main_#t~nondet3;main_~eb~2 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 756#L20 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 747#L70 base2flt_#res := base2flt_~__retres4~0; 748#L71 main_#t~ret5 := base2flt_#res;main_~zero~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 753#L20-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 737#L70-1 base2flt_#res := base2flt_~__retres4~0; 738#L71-1 main_#t~ret6 := base2flt_#res;main_~a~0 := main_#t~ret6;havoc main_#t~ret6;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 746#L20-2 assume !(0 == base2flt_~m % 4294967296); 754#L26-2 assume base2flt_~m % 4294967296 < 16777216; 759#L38-5 [2019-11-19 23:48:27,420 INFO L796 eck$LassoCheckResult]: Loop: 759#L38-5 assume !false; 744#L29-2 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 745#L38-4 assume base2flt_~m % 4294967296 < 16777216; 759#L38-5 [2019-11-19 23:48:27,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:48:27,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951170, now seen corresponding path program 1 times [2019-11-19 23:48:27,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:48:27,421 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673917637] [2019-11-19 23:48:27,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:48:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:27,435 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:48:27,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:48:27,436 INFO L82 PathProgramCache]: Analyzing trace with hash 172978, now seen corresponding path program 1 times [2019-11-19 23:48:27,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:48:27,436 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201438776] [2019-11-19 23:48:27,436 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:48:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:27,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:27,441 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:48:27,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:48:27,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1765895313, now seen corresponding path program 1 times [2019-11-19 23:48:27,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:48:27,442 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208489584] [2019-11-19 23:48:27,442 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:48:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:27,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:27,466 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:48:27,493 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 23:48:27,493 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 23:48:27,493 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 23:48:27,493 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 23:48:27,493 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 23:48:27,493 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:27,493 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 23:48:27,493 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 23:48:27,493 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration5_Loop [2019-11-19 23:48:27,494 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 23:48:27,494 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 23:48:27,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:27,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:27,580 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 23:48:27,580 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/bin/uautomizer/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:27,592 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 23:48:27,592 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 23:48:27,615 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 23:48:27,615 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:27,623 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 23:48:27,625 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 23:48:27,625 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 23:48:27,625 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 23:48:27,625 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 23:48:27,625 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 23:48:27,626 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:27,626 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 23:48:27,626 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 23:48:27,626 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration5_Loop [2019-11-19 23:48:27,626 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 23:48:27,626 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 23:48:27,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:27,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:27,707 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 23:48:27,707 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 23:48:27,715 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 [2019-11-19 23:48:27,716 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:48:27,716 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:48:27,717 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:48:27,717 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:48:27,717 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:48:27,718 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:48:27,718 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:27,721 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 23:48:27,724 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-19 23:48:27,725 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d843876-dab6-45cb-aad5-5a98e8edf8ce/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 23:48:27,729 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 23:48:27,729 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-19 23:48:27,729 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 23:48:27,729 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2019-11-19 23:48:27,739 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:27,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:48:27,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:48:27,767 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 23:48:27,768 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:48:27,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:48:27,775 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 23:48:27,775 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:48:27,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:48:27,797 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 [2019-11-19 23:48:27,797 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-11-19 23:48:27,803 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 30 states and 38 transitions. Complement of second has 4 states. [2019-11-19 23:48:27,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-19 23:48:27,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-19 23:48:27,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2019-11-19 23:48:27,804 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-19 23:48:27,805 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:48:27,805 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 12 letters. Loop has 3 letters. [2019-11-19 23:48:27,805 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:48:27,805 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 6 letters. [2019-11-19 23:48:27,805 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:48:27,805 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 38 transitions. [2019-11-19 23:48:27,806 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 23:48:27,806 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2019-11-19 23:48:27,806 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-19 23:48:27,806 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-19 23:48:27,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-19 23:48:27,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 23:48:27,806 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 23:48:27,807 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 23:48:27,807 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 23:48:27,807 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-19 23:48:27,807 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-19 23:48:27,807 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 23:48:27,807 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-19 23:48:27,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 11:48:27 BoogieIcfgContainer [2019-11-19 23:48:27,814 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 23:48:27,815 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 23:48:27,815 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 23:48:27,815 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 23:48:27,815 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:48:24" (3/4) ... [2019-11-19 23:48:27,818 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 23:48:27,819 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 23:48:27,821 INFO L168 Benchmark]: Toolchain (without parser) took 3932.25 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 257.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -201.1 MB). Peak memory consumption was 56.8 MB. Max. memory is 11.5 GB. [2019-11-19 23:48:27,822 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:48:27,822 INFO L168 Benchmark]: CACSL2BoogieTranslator took 379.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.4 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -239.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-19 23:48:27,823 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-19 23:48:27,827 INFO L168 Benchmark]: Boogie Preprocessor took 65.81 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. [2019-11-19 23:48:27,827 INFO L168 Benchmark]: RCFGBuilder took 533.11 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: 35.7 MB). Peak memory consumption was 35.7 MB. Max. memory is 11.5 GB. [2019-11-19 23:48:27,828 INFO L168 Benchmark]: BuchiAutomizer took 2879.72 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 65.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -3.8 MB). Peak memory consumption was 61.7 MB. Max. memory is 11.5 GB. [2019-11-19 23:48:27,828 INFO L168 Benchmark]: Witness Printer took 4.00 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:48:27,838 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 379.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.4 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -239.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 67.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 65.81 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 533.11 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: 35.7 MB). Peak memory consumption was 35.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2879.72 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 65.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -3.8 MB). Peak memory consumption was 61.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.00 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 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 6 terminating modules (1 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * e + 253 and consists of 4 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 34 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 29 states and ocurred in iteration 3. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 247 SDtfs, 215 SDslu, 26 SDs, 0 SdLazy, 38 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf95 lsp57 ukn100 mio100 lsp100 div583 bol100 ite100 ukn100 eq132 hnf44 smp92 dnf100 smp100 tf105 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 52ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...