./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/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 0e04f2515dd5c7ce697460622800d33932bf1903 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 14:46:53,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:46:53,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:46:53,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:46:53,774 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:46:53,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:46:53,775 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:46:53,777 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:46:53,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:46:53,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:46:53,779 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:46:53,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:46:53,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:46:53,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:46:53,781 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:46:53,782 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:46:53,783 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:46:53,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:46:53,785 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:46:53,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:46:53,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:46:53,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:46:53,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:46:53,789 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:46:53,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:46:53,791 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:46:53,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:46:53,792 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:46:53,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:46:53,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:46:53,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:46:53,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:46:53,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:46:53,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:46:53,795 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:46:53,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:46:53,795 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:46:53,796 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:46:53,796 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:46:53,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:46:53,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:46:53,797 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 14:46:53,808 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:46:53,808 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:46:53,808 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 14:46:53,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 14:46:53,809 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 14:46:53,809 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 14:46:53,809 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 14:46:53,809 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 14:46:53,809 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 14:46:53,809 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 14:46:53,809 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 14:46:53,809 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:46:53,809 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:46:53,810 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 14:46:53,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:46:53,810 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:46:53,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:46:53,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 14:46:53,810 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 14:46:53,810 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 14:46:53,810 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:46:53,810 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:46:53,811 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 14:46:53,811 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:46:53,811 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 14:46:53,811 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:46:53,811 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:46:53,811 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 14:46:53,811 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:46:53,811 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 14:46:53,812 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:46:53,812 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 14:46:53,812 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 14:46:53,812 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_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/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 -> 0e04f2515dd5c7ce697460622800d33932bf1903 [2019-12-07 14:46:53,912 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:46:53,920 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:46:53,922 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:46:53,923 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:46:53,923 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:46:53,923 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/bin/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2019-12-07 14:46:53,969 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/bin/uautomizer/data/ebe4fd737/27635a73f7c24c8c8be36864bf139906/FLAG183dd5886 [2019-12-07 14:46:54,407 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:46:54,408 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2019-12-07 14:46:54,413 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/bin/uautomizer/data/ebe4fd737/27635a73f7c24c8c8be36864bf139906/FLAG183dd5886 [2019-12-07 14:46:54,422 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/bin/uautomizer/data/ebe4fd737/27635a73f7c24c8c8be36864bf139906 [2019-12-07 14:46:54,424 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:46:54,426 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:46:54,426 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:46:54,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:46:54,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:46:54,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:46:54" (1/1) ... [2019-12-07 14:46:54,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60a684a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:46:54, skipping insertion in model container [2019-12-07 14:46:54,432 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:46:54" (1/1) ... [2019-12-07 14:46:54,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:46:54,464 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:46:54,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:46:54,633 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:46:54,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:46:54,670 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:46:54,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:46:54 WrapperNode [2019-12-07 14:46:54,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:46:54,671 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:46:54,671 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:46:54,671 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:46:54,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:46:54" (1/1) ... [2019-12-07 14:46:54,683 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:46:54" (1/1) ... [2019-12-07 14:46:54,702 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:46:54,703 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:46:54,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:46:54,703 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:46:54,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:46:54" (1/1) ... [2019-12-07 14:46:54,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:46:54" (1/1) ... [2019-12-07 14:46:54,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:46:54" (1/1) ... [2019-12-07 14:46:54,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:46:54" (1/1) ... [2019-12-07 14:46:54,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:46:54" (1/1) ... [2019-12-07 14:46:54,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:46:54" (1/1) ... [2019-12-07 14:46:54,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:46:54" (1/1) ... [2019-12-07 14:46:54,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:46:54,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:46:54,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:46:54,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:46:54,726 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:46:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:46:54,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:46:54,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:46:55,047 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:46:55,047 INFO L287 CfgBuilder]: Removed 30 assume(true) statements. [2019-12-07 14:46:55,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:46:55 BoogieIcfgContainer [2019-12-07 14:46:55,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:46:55,048 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 14:46:55,048 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 14:46:55,050 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 14:46:55,051 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:46:55,051 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 02:46:54" (1/3) ... [2019-12-07 14:46:55,052 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e5710e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 02:46:55, skipping insertion in model container [2019-12-07 14:46:55,052 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:46:55,052 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:46:54" (2/3) ... [2019-12-07 14:46:55,052 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e5710e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 02:46:55, skipping insertion in model container [2019-12-07 14:46:55,052 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:46:55,052 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:46:55" (3/3) ... [2019-12-07 14:46:55,053 INFO L371 chiAutomizerObserver]: Analyzing ICFG soft_float_1-3a.c.cil.c [2019-12-07 14:46:55,081 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 14:46:55,081 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 14:46:55,081 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 14:46:55,081 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:46:55,081 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:46:55,081 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 14:46:55,081 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:46:55,082 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 14:46:55,093 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states. [2019-12-07 14:46:55,109 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2019-12-07 14:46:55,110 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:46:55,110 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:46:55,114 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 14:46:55,114 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 14:46:55,114 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 14:46:55,114 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states. [2019-12-07 14:46:55,118 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2019-12-07 14:46:55,118 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:46:55,119 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:46:55,119 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 14:46:55,119 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 14:46:55,124 INFO L794 eck$LassoCheckResult]: Stem: 46#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 40#L19true assume !(0 == base2flt_~m % 4294967296); 27#L25true assume !(base2flt_~m % 4294967296 < 16777216); 19#L47-2true [2019-12-07 14:46:55,124 INFO L796 eck$LassoCheckResult]: Loop: 19#L47-2true assume !false; 33#L48true assume base2flt_~m % 4294967296 >= 33554432; 60#L49true assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 19#L47-2true [2019-12-07 14:46:55,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:46:55,128 INFO L82 PathProgramCache]: Analyzing trace with hash 30973, now seen corresponding path program 1 times [2019-12-07 14:46:55,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:46:55,133 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659672218] [2019-12-07 14:46:55,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:46:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:46:55,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:46:55,245 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659672218] [2019-12-07 14:46:55,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:46:55,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 14:46:55,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548723616] [2019-12-07 14:46:55,250 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 14:46:55,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:46:55,250 INFO L82 PathProgramCache]: Analyzing trace with hash 73619, now seen corresponding path program 1 times [2019-12-07 14:46:55,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:46:55,250 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327729759] [2019-12-07 14:46:55,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:46:55,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:46:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:46:55,273 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:46:55,301 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:46:55,301 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:46:55,301 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:46:55,302 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:46:55,302 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 14:46:55,302 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:46:55,302 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:46:55,302 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:46:55,302 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration1_Loop [2019-12-07 14:46:55,302 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:46:55,302 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:46:55,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:46:55,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:46:55,393 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:46:55,393 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:46:55,399 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 14:46:55,399 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:46:55,406 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 14:46:55,406 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 14:46:55,412 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 14:46:55,413 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:46:55,413 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:46:55,413 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:46:55,413 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:46:55,413 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:46:55,413 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:46:55,413 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:46:55,414 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:46:55,414 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration1_Loop [2019-12-07 14:46:55,414 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:46:55,414 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:46:55,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:46:55,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:46:55,471 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:46:55,475 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:46:55,479 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:46:55,481 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:46:55,481 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:46:55,481 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:46:55,481 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:46:55,482 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:46:55,483 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:46:55,483 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:46:55,486 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:46:55,490 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 14:46:55,490 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_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:46:55,495 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:46:55,495 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 14:46:55,496 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:46:55,496 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-12-07 14:46:55,499 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 14:46:55,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:46:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:46:55,530 INFO L264 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:46:55,531 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:46:55,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:46:55,538 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 14:46:55,538 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:46:55,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:46:55,550 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 [2019-12-07 14:46:55,551 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 89 states. Second operand 3 states. [2019-12-07 14:46:55,600 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 89 states.. Second operand 3 states. Result 264 states and 424 transitions. Complement of second has 6 states. [2019-12-07 14:46:55,601 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 [2019-12-07 14:46:55,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 14:46:55,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 277 transitions. [2019-12-07 14:46:55,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 277 transitions. Stem has 3 letters. Loop has 3 letters. [2019-12-07 14:46:55,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:46:55,605 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 277 transitions. Stem has 6 letters. Loop has 3 letters. [2019-12-07 14:46:55,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:46:55,605 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 277 transitions. Stem has 3 letters. Loop has 6 letters. [2019-12-07 14:46:55,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:46:55,606 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 264 states and 424 transitions. [2019-12-07 14:46:55,613 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2019-12-07 14:46:55,617 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 264 states to 56 states and 81 transitions. [2019-12-07 14:46:55,617 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2019-12-07 14:46:55,618 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2019-12-07 14:46:55,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 81 transitions. [2019-12-07 14:46:55,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:46:55,619 INFO L688 BuchiCegarLoop]: Abstraction has 56 states and 81 transitions. [2019-12-07 14:46:55,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 81 transitions. [2019-12-07 14:46:55,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 45. [2019-12-07 14:46:55,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-12-07 14:46:55,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 69 transitions. [2019-12-07 14:46:55,640 INFO L711 BuchiCegarLoop]: Abstraction has 45 states and 69 transitions. [2019-12-07 14:46:55,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:46:55,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:46:55,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:46:55,642 INFO L87 Difference]: Start difference. First operand 45 states and 69 transitions. Second operand 3 states. [2019-12-07 14:46:55,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:46:55,666 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2019-12-07 14:46:55,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:46:55,667 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2019-12-07 14:46:55,667 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-12-07 14:46:55,668 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 30 transitions. [2019-12-07 14:46:55,668 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2019-12-07 14:46:55,668 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2019-12-07 14:46:55,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2019-12-07 14:46:55,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:46:55,668 INFO L688 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-12-07 14:46:55,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2019-12-07 14:46:55,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-12-07 14:46:55,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-12-07 14:46:55,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2019-12-07 14:46:55,670 INFO L711 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-12-07 14:46:55,670 INFO L591 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-12-07 14:46:55,670 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 14:46:55,670 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. [2019-12-07 14:46:55,671 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-12-07 14:46:55,671 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:46:55,671 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:46:55,671 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 14:46:55,671 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 14:46:55,671 INFO L794 eck$LassoCheckResult]: Stem: 483#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;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; 481#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 469#L69 base2flt_#res := base2flt_~__retres4~0; 470#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;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; 477#L19-1 assume !(0 == base2flt_~m % 4294967296); 480#L25-1 assume !(base2flt_~m % 4294967296 < 16777216); 474#L47-5 [2019-12-07 14:46:55,671 INFO L796 eck$LassoCheckResult]: Loop: 474#L47-5 assume !false; 462#L48-1 assume base2flt_~m % 4294967296 >= 33554432; 464#L49-1 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 474#L47-5 [2019-12-07 14:46:55,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:46:55,672 INFO L82 PathProgramCache]: Analyzing trace with hash 921737699, now seen corresponding path program 1 times [2019-12-07 14:46:55,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:46:55,672 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364748532] [2019-12-07 14:46:55,672 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:46:55,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:46:55,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:46:55,686 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:46:55,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:46:55,686 INFO L82 PathProgramCache]: Analyzing trace with hash 136178, now seen corresponding path program 1 times [2019-12-07 14:46:55,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:46:55,686 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48388085] [2019-12-07 14:46:55,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:46:55,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:46:55,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:46:55,695 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:46:55,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:46:55,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1761973968, now seen corresponding path program 1 times [2019-12-07 14:46:55,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:46:55,696 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974927926] [2019-12-07 14:46:55,696 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:46:55,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:46:55,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:46:55,714 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:46:55,729 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:46:55,730 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:46:55,730 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:46:55,730 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:46:55,730 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 14:46:55,730 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:46:55,730 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:46:55,730 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:46:55,730 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration2_Loop [2019-12-07 14:46:55,730 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:46:55,730 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:46:55,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:46:55,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:46:55,790 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:46:55,790 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:46:55,793 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 14:46:55,793 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 14:46:55,799 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 14:46:55,799 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_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:46:55,802 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 14:46:55,803 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/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) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:46:55,811 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 14:46:55,811 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 14:46:55,816 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 14:46:55,817 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:46:55,818 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:46:55,818 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:46:55,818 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:46:55,818 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:46:55,818 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:46:55,818 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:46:55,818 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:46:55,818 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration2_Loop [2019-12-07 14:46:55,818 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:46:55,818 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:46:55,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:46:55,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:46:55,888 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:46:55,888 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/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 [2019-12-07 14:46:55,891 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:46:55,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:46:55,893 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:46:55,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:46:55,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:46:55,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:46:55,895 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:46:55,895 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:46:55,897 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/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) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:46:55,900 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:46:55,902 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:46:55,902 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:46:55,902 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:46:55,902 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:46:55,902 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:46:55,903 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:46:55,903 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:46:55,905 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:46:55,908 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 14:46:55,908 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_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/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) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:46:55,911 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:46:55,911 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 14:46:55,911 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:46:55,911 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-12-07 14:46:55,912 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 14:46:55,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:46:55,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:46:55,931 INFO L264 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:46:55,931 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:46:55,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:46:55,934 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 14:46:55,935 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:46:55,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:46:55,935 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 [2019-12-07 14:46:55,935 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 30 transitions. cyclomatic complexity: 11 Second operand 3 states. [2019-12-07 14:46:55,944 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. [2019-12-07 14:46:55,945 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 [2019-12-07 14:46:55,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 14:46:55,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2019-12-07 14:46:55,945 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 3 letters. [2019-12-07 14:46:55,945 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:46:55,946 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 9 letters. Loop has 3 letters. [2019-12-07 14:46:55,946 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:46:55,946 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 6 letters. [2019-12-07 14:46:55,946 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:46:55,946 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 50 transitions. [2019-12-07 14:46:55,947 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2019-12-07 14:46:55,947 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 37 states and 46 transitions. [2019-12-07 14:46:55,948 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2019-12-07 14:46:55,948 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2019-12-07 14:46:55,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 46 transitions. [2019-12-07 14:46:55,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:46:55,948 INFO L688 BuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2019-12-07 14:46:55,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 46 transitions. [2019-12-07 14:46:55,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 26. [2019-12-07 14:46:55,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-07 14:46:55,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2019-12-07 14:46:55,950 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-12-07 14:46:55,950 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-12-07 14:46:55,950 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 14:46:55,950 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2019-12-07 14:46:55,951 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-12-07 14:46:55,951 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:46:55,951 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:46:55,951 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 14:46:55,951 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 14:46:55,951 INFO L794 eck$LassoCheckResult]: Stem: 595#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;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; 593#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 581#L69 base2flt_#res := base2flt_~__retres4~0; 582#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;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; 589#L19-1 assume !(0 == base2flt_~m % 4294967296); 592#L25-1 assume base2flt_~m % 4294967296 < 16777216; 597#L37-3 [2019-12-07 14:46:55,952 INFO L796 eck$LassoCheckResult]: Loop: 597#L37-3 assume !false; 587#L28-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 588#L37-2 assume base2flt_~m % 4294967296 < 16777216; 597#L37-3 [2019-12-07 14:46:55,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:46:55,952 INFO L82 PathProgramCache]: Analyzing trace with hash 921737673, now seen corresponding path program 1 times [2019-12-07 14:46:55,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:46:55,952 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179195196] [2019-12-07 14:46:55,952 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:46:55,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:46:55,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:46:55,964 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:46:55,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:46:55,965 INFO L82 PathProgramCache]: Analyzing trace with hash 110419, now seen corresponding path program 1 times [2019-12-07 14:46:55,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:46:55,965 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265340446] [2019-12-07 14:46:55,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:46:55,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:46:55,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:46:55,970 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:46:55,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:46:55,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1761173643, now seen corresponding path program 1 times [2019-12-07 14:46:55,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:46:55,971 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415370386] [2019-12-07 14:46:55,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:46:55,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:46:55,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:46:55,988 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:46:56,002 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:46:56,003 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:46:56,003 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:46:56,003 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:46:56,003 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 14:46:56,003 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:46:56,003 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:46:56,003 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:46:56,003 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration3_Loop [2019-12-07 14:46:56,003 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:46:56,003 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:46:56,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:46:56,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:46:56,049 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:46:56,049 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/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) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:46:56,052 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 14:46:56,052 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 14:46:56,056 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 14:46:56,057 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_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/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) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:46:56,060 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 14:46:56,060 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/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 [2019-12-07 14:46:56,066 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 14:46:56,066 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 14:46:56,071 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 14:46:56,072 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:46:56,072 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:46:56,073 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:46:56,073 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:46:56,073 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:46:56,073 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:46:56,073 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:46:56,073 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:46:56,073 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration3_Loop [2019-12-07 14:46:56,073 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:46:56,073 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:46:56,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:46:56,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:46:56,120 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:46:56,120 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/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 [2019-12-07 14:46:56,133 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:46:56,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:46:56,134 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:46:56,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:46:56,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:46:56,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:46:56,136 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:46:56,136 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:46:56,138 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/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 [2019-12-07 14:46:56,142 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:46:56,143 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:46:56,143 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:46:56,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:46:56,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:46:56,144 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:46:56,145 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:46:56,145 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:46:56,147 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:46:56,149 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 14:46:56,149 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_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/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 [2019-12-07 14:46:56,153 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:46:56,153 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 14:46:56,153 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:46:56,153 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2019-12-07 14:46:56,155 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 14:46:56,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:46:56,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:46:56,172 INFO L264 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:46:56,172 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:46:56,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:46:56,176 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 14:46:56,176 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:46:56,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:46:56,190 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 [2019-12-07 14:46:56,190 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 12 Second operand 4 states. [2019-12-07 14:46:56,199 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. [2019-12-07 14:46:56,200 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 [2019-12-07 14:46:56,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 14:46:56,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2019-12-07 14:46:56,200 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 3 letters. [2019-12-07 14:46:56,200 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:46:56,200 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 9 letters. Loop has 3 letters. [2019-12-07 14:46:56,201 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:46:56,201 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 6 letters. [2019-12-07 14:46:56,201 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:46:56,201 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 55 transitions. [2019-12-07 14:46:56,202 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-12-07 14:46:56,202 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 41 states and 51 transitions. [2019-12-07 14:46:56,203 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2019-12-07 14:46:56,203 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2019-12-07 14:46:56,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 51 transitions. [2019-12-07 14:46:56,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:46:56,203 INFO L688 BuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2019-12-07 14:46:56,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 51 transitions. [2019-12-07 14:46:56,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 29. [2019-12-07 14:46:56,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-07 14:46:56,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2019-12-07 14:46:56,205 INFO L711 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-12-07 14:46:56,205 INFO L591 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-12-07 14:46:56,205 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 14:46:56,205 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 38 transitions. [2019-12-07 14:46:56,205 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-12-07 14:46:56,206 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:46:56,206 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:46:56,206 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:46:56,206 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 14:46:56,206 INFO L794 eck$LassoCheckResult]: Stem: 715#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;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; 712#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 699#L69 base2flt_#res := base2flt_~__retres4~0; 700#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;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; 708#L19-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 703#L69-1 base2flt_#res := base2flt_~__retres4~0; 701#L70-1 main_#t~ret5 := base2flt_#res;main_~a~0 := main_#t~ret5;havoc main_#t~ret5;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; 702#L19-2 assume !(0 == base2flt_~m % 4294967296); 709#L25-2 assume !(base2flt_~m % 4294967296 < 16777216); 696#L47-8 [2019-12-07 14:46:56,206 INFO L796 eck$LassoCheckResult]: Loop: 696#L47-8 assume !false; 710#L48-2 assume base2flt_~m % 4294967296 >= 33554432; 695#L49-2 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 696#L47-8 [2019-12-07 14:46:56,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:46:56,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951196, now seen corresponding path program 1 times [2019-12-07 14:46:56,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:46:56,207 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583431927] [2019-12-07 14:46:56,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:46:56,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:46:56,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:46:56,220 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:46:56,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:46:56,220 INFO L82 PathProgramCache]: Analyzing trace with hash 198737, now seen corresponding path program 1 times [2019-12-07 14:46:56,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:46:56,220 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142479315] [2019-12-07 14:46:56,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:46:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:46:56,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:46:56,227 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:46:56,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:46:56,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1766695638, now seen corresponding path program 1 times [2019-12-07 14:46:56,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:46:56,227 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786671853] [2019-12-07 14:46:56,227 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:46:56,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:46:56,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:46:56,242 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:46:56,259 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:46:56,259 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:46:56,259 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:46:56,259 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:46:56,259 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 14:46:56,259 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:46:56,259 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:46:56,259 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:46:56,259 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration4_Loop [2019-12-07 14:46:56,260 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:46:56,260 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:46:56,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:46:56,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:46:56,313 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:46:56,313 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/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 [2019-12-07 14:46:56,315 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 14:46:56,316 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/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) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:46:56,323 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 14:46:56,323 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 14:46:56,328 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 14:46:56,330 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:46:56,330 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:46:56,330 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:46:56,330 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:46:56,330 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:46:56,330 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:46:56,330 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:46:56,330 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:46:56,330 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration4_Loop [2019-12-07 14:46:56,330 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:46:56,330 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:46:56,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:46:56,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:46:56,384 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:46:56,384 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/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 [2019-12-07 14:46:56,389 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:46:56,390 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:46:56,390 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:46:56,390 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:46:56,390 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:46:56,390 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:46:56,391 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:46:56,391 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:46:56,393 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:46:56,394 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 14:46:56,394 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_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/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 [2019-12-07 14:46:56,397 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:46:56,397 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 14:46:56,398 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:46:56,398 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-12-07 14:46:56,401 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 14:46:56,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:46:56,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:46:56,417 INFO L264 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:46:56,417 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:46:56,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:46:56,421 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 14:46:56,421 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:46:56,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:46:56,421 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 [2019-12-07 14:46:56,421 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 13 Second operand 3 states. [2019-12-07 14:46:56,426 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. [2019-12-07 14:46:56,426 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 [2019-12-07 14:46:56,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 14:46:56,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2019-12-07 14:46:56,426 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 3 letters. [2019-12-07 14:46:56,426 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:46:56,426 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 12 letters. Loop has 3 letters. [2019-12-07 14:46:56,427 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:46:56,427 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 6 letters. [2019-12-07 14:46:56,427 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:46:56,427 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2019-12-07 14:46:56,427 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 14:46:56,428 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 34 transitions. [2019-12-07 14:46:56,428 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-12-07 14:46:56,428 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-12-07 14:46:56,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 34 transitions. [2019-12-07 14:46:56,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:46:56,428 INFO L688 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-12-07 14:46:56,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 34 transitions. [2019-12-07 14:46:56,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-12-07 14:46:56,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-07 14:46:56,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2019-12-07 14:46:56,429 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-12-07 14:46:56,429 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-12-07 14:46:56,430 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 14:46:56,430 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2019-12-07 14:46:56,430 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 14:46:56,430 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:46:56,430 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:46:56,430 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:46:56,430 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 14:46:56,430 INFO L794 eck$LassoCheckResult]: Stem: 828#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;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; 825#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 813#L69 base2flt_#res := base2flt_~__retres4~0; 814#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;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; 822#L19-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 817#L69-1 base2flt_#res := base2flt_~__retres4~0; 815#L70-1 main_#t~ret5 := base2flt_#res;main_~a~0 := main_#t~ret5;havoc main_#t~ret5;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; 816#L19-2 assume !(0 == base2flt_~m % 4294967296); 823#L25-2 assume base2flt_~m % 4294967296 < 16777216; 827#L37-5 [2019-12-07 14:46:56,430 INFO L796 eck$LassoCheckResult]: Loop: 827#L37-5 assume !false; 811#L28-2 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 812#L37-4 assume base2flt_~m % 4294967296 < 16777216; 827#L37-5 [2019-12-07 14:46:56,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:46:56,431 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951170, now seen corresponding path program 1 times [2019-12-07 14:46:56,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:46:56,431 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753887136] [2019-12-07 14:46:56,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:46:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:46:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:46:56,445 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:46:56,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:46:56,445 INFO L82 PathProgramCache]: Analyzing trace with hash 172978, now seen corresponding path program 1 times [2019-12-07 14:46:56,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:46:56,445 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663178200] [2019-12-07 14:46:56,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:46:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:46:56,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:46:56,451 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:46:56,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:46:56,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1765895313, now seen corresponding path program 1 times [2019-12-07 14:46:56,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:46:56,451 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440721464] [2019-12-07 14:46:56,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:46:56,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:46:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:46:56,470 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:46:56,483 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:46:56,483 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:46:56,483 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:46:56,484 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:46:56,484 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 14:46:56,484 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:46:56,484 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:46:56,484 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:46:56,484 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration5_Loop [2019-12-07 14:46:56,484 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:46:56,484 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:46:56,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:46:56,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:46:56,530 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:46:56,530 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/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 [2019-12-07 14:46:56,533 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 14:46:56,534 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/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) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:46:56,540 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 14:46:56,540 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 14:46:56,545 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 14:46:56,546 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:46:56,547 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:46:56,547 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:46:56,547 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:46:56,547 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:46:56,547 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:46:56,547 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:46:56,547 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:46:56,547 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration5_Loop [2019-12-07 14:46:56,547 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:46:56,547 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:46:56,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:46:56,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:46:56,584 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:46:56,584 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/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) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:46:56,587 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:46:56,588 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:46:56,588 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:46:56,589 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:46:56,589 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:46:56,589 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:46:56,589 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:46:56,589 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:46:56,591 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:46:56,593 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 14:46:56,593 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_37f9c805-4f39-4557-a02e-bb20f1d4c5e6/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) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:46:56,596 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:46:56,596 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 14:46:56,596 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:46:56,596 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2019-12-07 14:46:56,598 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 14:46:56,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:46:56,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:46:56,619 INFO L264 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:46:56,619 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:46:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:46:56,622 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 14:46:56,622 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:46:56,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:46:56,631 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 [2019-12-07 14:46:56,631 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-12-07 14:46:56,635 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. [2019-12-07 14:46:56,635 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 [2019-12-07 14:46:56,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 14:46:56,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2019-12-07 14:46:56,635 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 3 letters. [2019-12-07 14:46:56,636 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:46:56,636 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 12 letters. Loop has 3 letters. [2019-12-07 14:46:56,636 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:46:56,636 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 6 letters. [2019-12-07 14:46:56,636 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:46:56,636 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 38 transitions. [2019-12-07 14:46:56,637 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 14:46:56,637 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2019-12-07 14:46:56,637 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 14:46:56,637 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 14:46:56,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 14:46:56,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:46:56,637 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:46:56,637 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:46:56,637 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:46:56,637 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-12-07 14:46:56,637 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 14:46:56,637 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 14:46:56,637 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 14:46:56,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 02:46:56 BoogieIcfgContainer [2019-12-07 14:46:56,642 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 14:46:56,642 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:46:56,642 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:46:56,642 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:46:56,642 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:46:55" (3/4) ... [2019-12-07 14:46:56,644 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 14:46:56,645 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:46:56,646 INFO L168 Benchmark]: Toolchain (without parser) took 2220.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 940.7 MB in the beginning and 956.6 MB in the end (delta: -15.9 MB). Peak memory consumption was 85.8 MB. Max. memory is 11.5 GB. [2019-12-07 14:46:56,646 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:46:56,647 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -150.6 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 14:46:56,647 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.63 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:46:56,647 INFO L168 Benchmark]: Boogie Preprocessor took 22.78 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:46:56,648 INFO L168 Benchmark]: RCFGBuilder took 322.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.9 MB). Peak memory consumption was 39.9 MB. Max. memory is 11.5 GB. [2019-12-07 14:46:56,648 INFO L168 Benchmark]: BuchiAutomizer took 1593.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 956.6 MB in the end (delta: 94.8 MB). Peak memory consumption was 94.8 MB. Max. memory is 11.5 GB. [2019-12-07 14:46:56,648 INFO L168 Benchmark]: Witness Printer took 2.75 ms. Allocated memory is still 1.1 GB. Free memory is still 956.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:46:56,650 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 244.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -150.6 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.63 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.78 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 322.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.9 MB). Peak memory consumption was 39.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1593.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 956.6 MB in the end (delta: 94.8 MB). Peak memory consumption was 94.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.75 ms. Allocated memory is still 1.1 GB. Free memory is still 956.6 MB. 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 1.5s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. 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: 275 SDtfs, 243 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: 20ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...