./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_904c5bb9-2c66-4a93-9f48-22e6d567d135/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_904c5bb9-2c66-4a93-9f48-22e6d567d135/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_904c5bb9-2c66-4a93-9f48-22e6d567d135/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_904c5bb9-2c66-4a93-9f48-22e6d567d135/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_904c5bb9-2c66-4a93-9f48-22e6d567d135/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_904c5bb9-2c66-4a93-9f48-22e6d567d135/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 fa5701cbf2aecb18d72b6e5744b88307065d31ab ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 21:49:30,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:49:30,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:49:30,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:49:30,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:49:30,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:49:30,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:49:30,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:49:30,761 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:49:30,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:49:30,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:49:30,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:49:30,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:49:30,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:49:30,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:49:30,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:49:30,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:49:30,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:49:30,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:49:30,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:49:30,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:49:30,785 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:49:30,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:49:30,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:49:30,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:49:30,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:49:30,791 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:49:30,792 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:49:30,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:49:30,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:49:30,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:49:30,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:49:30,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:49:30,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:49:30,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:49:30,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:49:30,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:49:30,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:49:30,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:49:30,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:49:30,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:49:30,801 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_904c5bb9-2c66-4a93-9f48-22e6d567d135/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-15 21:49:30,828 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:49:30,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:49:30,839 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:49:30,840 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:49:30,840 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:49:30,840 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 21:49:30,840 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 21:49:30,841 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 21:49:30,841 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 21:49:30,841 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 21:49:30,841 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 21:49:30,842 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:49:30,842 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 21:49:30,842 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 21:49:30,842 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 21:49:30,842 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 21:49:30,843 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:49:30,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 21:49:30,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 21:49:30,844 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 21:49:30,844 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 21:49:30,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 21:49:30,845 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 21:49:30,845 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:49:30,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 21:49:30,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:49:30,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:49:30,846 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 21:49:30,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:49:30,847 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 21:49:30,847 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 21:49:30,848 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 21:49:30,848 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_904c5bb9-2c66-4a93-9f48-22e6d567d135/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 -> fa5701cbf2aecb18d72b6e5744b88307065d31ab [2019-11-15 21:49:30,873 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:49:30,884 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:49:30,887 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:49:30,888 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:49:30,889 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:49:30,889 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_904c5bb9-2c66-4a93-9f48-22e6d567d135/bin/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2019-11-15 21:49:30,944 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_904c5bb9-2c66-4a93-9f48-22e6d567d135/bin/uautomizer/data/a320addcd/74b043ee27ac4c1abe45ea814524c376/FLAG98ae03383 [2019-11-15 21:49:31,385 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:49:31,386 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_904c5bb9-2c66-4a93-9f48-22e6d567d135/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2019-11-15 21:49:31,394 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_904c5bb9-2c66-4a93-9f48-22e6d567d135/bin/uautomizer/data/a320addcd/74b043ee27ac4c1abe45ea814524c376/FLAG98ae03383 [2019-11-15 21:49:31,410 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_904c5bb9-2c66-4a93-9f48-22e6d567d135/bin/uautomizer/data/a320addcd/74b043ee27ac4c1abe45ea814524c376 [2019-11-15 21:49:31,413 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:49:31,414 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 21:49:31,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:49:31,418 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:49:31,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:49:31,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:49:31" (1/1) ... [2019-11-15 21:49:31,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b020872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:49:31, skipping insertion in model container [2019-11-15 21:49:31,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:49:31" (1/1) ... [2019-11-15 21:49:31,433 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:49:31,474 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:49:31,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:49:31,751 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:49:31,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:49:31,813 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:49:31,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:49:31 WrapperNode [2019-11-15 21:49:31,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:49:31,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 21:49:31,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 21:49:31,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 21:49:31,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:49:31" (1/1) ... [2019-11-15 21:49:31,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:49:31" (1/1) ... [2019-11-15 21:49:31,858 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 21:49:31,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:49:31,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:49:31,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:49:31,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:49:31" (1/1) ... [2019-11-15 21:49:31,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:49:31" (1/1) ... [2019-11-15 21:49:31,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:49:31" (1/1) ... [2019-11-15 21:49:31,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:49:31" (1/1) ... [2019-11-15 21:49:31,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:49:31" (1/1) ... [2019-11-15 21:49:31,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:49:31" (1/1) ... [2019-11-15 21:49:31,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:49:31" (1/1) ... [2019-11-15 21:49:31,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:49:31,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:49:31,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:49:31,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:49:31,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:49:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_904c5bb9-2c66-4a93-9f48-22e6d567d135/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:49:31,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:49:31,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:49:32,566 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:49:32,566 INFO L284 CfgBuilder]: Removed 34 assume(true) statements. [2019-11-15 21:49:32,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:49:32 BoogieIcfgContainer [2019-11-15 21:49:32,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:49:32,568 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 21:49:32,568 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 21:49:32,571 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 21:49:32,572 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 21:49:32,572 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 09:49:31" (1/3) ... [2019-11-15 21:49:32,573 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d25904a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 09:49:32, skipping insertion in model container [2019-11-15 21:49:32,574 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 21:49:32,574 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:49:31" (2/3) ... [2019-11-15 21:49:32,574 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d25904a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 09:49:32, skipping insertion in model container [2019-11-15 21:49:32,574 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 21:49:32,577 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:49:32" (3/3) ... [2019-11-15 21:49:32,579 INFO L371 chiAutomizerObserver]: Analyzing ICFG soft_float_4-3a.c.cil.c [2019-11-15 21:49:32,630 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 21:49:32,630 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 21:49:32,630 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 21:49:32,630 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:49:32,630 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:49:32,630 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 21:49:32,630 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:49:32,630 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 21:49:32,644 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states. [2019-11-15 21:49:32,665 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2019-11-15 21:49:32,666 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:49:32,666 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:49:32,671 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-15 21:49:32,671 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 21:49:32,671 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 21:49:32,671 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states. [2019-11-15 21:49:32,677 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2019-11-15 21:49:32,678 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:49:32,678 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:49:32,678 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-15 21:49:32,678 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 21:49:32,686 INFO L791 eck$LassoCheckResult]: Stem: 44#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 40#L19true assume !(0 == base2flt_~m % 4294967296); 28#L25true assume !(base2flt_~m % 4294967296 < 16777216); 21#L47-2true [2019-11-15 21:49:32,686 INFO L793 eck$LassoCheckResult]: Loop: 21#L47-2true assume !false; 34#L48true assume base2flt_~m % 4294967296 >= 33554432; 56#L49true assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 21#L47-2true [2019-11-15 21:49:32,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:49:32,691 INFO L82 PathProgramCache]: Analyzing trace with hash 30973, now seen corresponding path program 1 times [2019-11-15 21:49:32,697 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:49:32,697 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522132799] [2019-11-15 21:49:32,697 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:49:32,698 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:49:32,698 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:49:32,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:49:32,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:49:32,847 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522132799] [2019-11-15 21:49:32,848 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:49:32,848 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 21:49:32,848 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444431710] [2019-11-15 21:49:32,852 INFO L796 eck$LassoCheckResult]: stem already infeasible [2019-11-15 21:49:32,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:49:32,852 INFO L82 PathProgramCache]: Analyzing trace with hash 73619, now seen corresponding path program 1 times [2019-11-15 21:49:32,852 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:49:32,852 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515640604] [2019-11-15 21:49:32,852 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:49:32,853 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:49:32,853 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:49:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:49:32,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:49:32,886 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:49:32,931 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 21:49:32,932 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 21:49:32,932 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 21:49:32,932 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 21:49:32,932 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 21:49:32,933 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:49:32,933 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 21:49:32,933 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 21:49:32,933 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration1_Loop [2019-11-15 21:49:32,934 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 21:49:32,934 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 21:49:32,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:49:32,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:49:33,088 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 21:49:33,088 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_904c5bb9-2c66-4a93-9f48-22e6d567d135/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:49:33,094 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 21:49:33,094 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_904c5bb9-2c66-4a93-9f48-22e6d567d135/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:49:33,106 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 21:49:33,106 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 21:49:33,117 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 21:49:33,119 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 21:49:33,119 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 21:49:33,119 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 21:49:33,119 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 21:49:33,119 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 21:49:33,119 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:49:33,120 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 21:49:33,120 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 21:49:33,120 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration1_Loop [2019-11-15 21:49:33,120 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 21:49:33,120 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 21:49:33,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:49:33,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:49:33,242 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 21:49:33,247 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 21:49:33,248 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 21:49:33,250 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:49:33,250 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 21:49:33,251 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:49:33,251 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:49:33,251 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:49:33,253 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 21:49:33,255 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 21:49:33,273 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 21:49:33,285 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 21:49:33,285 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-11-15 21:49:33,287 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 21:49:33,287 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 21:49:33,288 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 21:49:33,288 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-11-15 21:49:33,291 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 21:49:33,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:49:33,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:49:33,333 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 21:49:33,334 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:49:33,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:49:33,344 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 21:49:33,345 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:49:33,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:49:33,360 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-15 21:49:33,361 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 78 states. Second operand 3 states. [2019-11-15 21:49:33,431 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 78 states.. Second operand 3 states. Result 232 states and 360 transitions. Complement of second has 6 states. [2019-11-15 21:49:33,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 21:49:33,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 21:49:33,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 235 transitions. [2019-11-15 21:49:33,437 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 235 transitions. Stem has 3 letters. Loop has 3 letters. [2019-11-15 21:49:33,438 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:49:33,439 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 235 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-15 21:49:33,439 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:49:33,439 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 235 transitions. Stem has 3 letters. Loop has 6 letters. [2019-11-15 21:49:33,439 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:49:33,440 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 232 states and 360 transitions. [2019-11-15 21:49:33,455 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2019-11-15 21:49:33,459 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 232 states to 56 states and 81 transitions. [2019-11-15 21:49:33,460 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2019-11-15 21:49:33,461 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2019-11-15 21:49:33,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 81 transitions. [2019-11-15 21:49:33,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 21:49:33,462 INFO L688 BuchiCegarLoop]: Abstraction has 56 states and 81 transitions. [2019-11-15 21:49:33,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 81 transitions. [2019-11-15 21:49:33,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 45. [2019-11-15 21:49:33,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-11-15 21:49:33,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 69 transitions. [2019-11-15 21:49:33,493 INFO L711 BuchiCegarLoop]: Abstraction has 45 states and 69 transitions. [2019-11-15 21:49:33,493 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:49:33,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:49:33,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:49:33,496 INFO L87 Difference]: Start difference. First operand 45 states and 69 transitions. Second operand 3 states. [2019-11-15 21:49:33,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:49:33,535 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2019-11-15 21:49:33,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:49:33,536 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2019-11-15 21:49:33,536 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-11-15 21:49:33,537 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 30 transitions. [2019-11-15 21:49:33,537 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2019-11-15 21:49:33,537 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2019-11-15 21:49:33,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2019-11-15 21:49:33,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 21:49:33,538 INFO L688 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-15 21:49:33,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2019-11-15 21:49:33,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-15 21:49:33,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-15 21:49:33,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2019-11-15 21:49:33,542 INFO L711 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-15 21:49:33,543 INFO L591 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-15 21:49:33,543 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 21:49:33,543 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. [2019-11-15 21:49:33,543 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-11-15 21:49:33,543 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:49:33,543 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:49:33,544 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 21:49:33,544 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 21:49:33,544 INFO L791 eck$LassoCheckResult]: Stem: 439#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_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~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_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 438#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 426#L69 base2flt_#res := base2flt_~__retres4~0; 427#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; 434#L19-1 assume !(0 == base2flt_~m % 4294967296); 437#L25-1 assume !(base2flt_~m % 4294967296 < 16777216); 431#L47-5 [2019-11-15 21:49:33,544 INFO L793 eck$LassoCheckResult]: Loop: 431#L47-5 assume !false; 421#L48-1 assume base2flt_~m % 4294967296 >= 33554432; 423#L49-1 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 431#L47-5 [2019-11-15 21:49:33,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:49:33,544 INFO L82 PathProgramCache]: Analyzing trace with hash 921737699, now seen corresponding path program 1 times [2019-11-15 21:49:33,545 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:49:33,545 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934689601] [2019-11-15 21:49:33,545 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:49:33,545 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:49:33,545 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:49:33,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:49:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:49:33,563 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:49:33,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:49:33,564 INFO L82 PathProgramCache]: Analyzing trace with hash 136178, now seen corresponding path program 1 times [2019-11-15 21:49:33,564 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:49:33,564 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358563769] [2019-11-15 21:49:33,564 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:49:33,564 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:49:33,565 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:49:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:49:33,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:49:33,577 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:49:33,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:49:33,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1761973968, now seen corresponding path program 1 times [2019-11-15 21:49:33,577 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:49:33,578 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448730922] [2019-11-15 21:49:33,578 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:49:33,578 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:49:33,578 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:49:33,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:49:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:49:33,614 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:49:33,643 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 21:49:33,643 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 21:49:33,643 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 21:49:33,643 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 21:49:33,643 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 21:49:33,644 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:49:33,644 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 21:49:33,644 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 21:49:33,644 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration2_Loop [2019-11-15 21:49:33,644 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 21:49:33,644 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 21:49:33,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:49:33,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:49:33,756 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 21:49:33,757 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_904c5bb9-2c66-4a93-9f48-22e6d567d135/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 21:49:33,761 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 21:49:33,761 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:49:33,770 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 21:49:33,770 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_904c5bb9-2c66-4a93-9f48-22e6d567d135/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:49:33,782 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 21:49:33,782 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_904c5bb9-2c66-4a93-9f48-22e6d567d135/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 21:49:33,798 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 21:49:33,798 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:49:33,806 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 21:49:33,808 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 21:49:33,808 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 21:49:33,808 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 21:49:33,808 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 21:49:33,809 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 21:49:33,809 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:49:33,809 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 21:49:33,809 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 21:49:33,809 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration2_Loop [2019-11-15 21:49:33,809 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 21:49:33,809 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 21:49:33,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:49:33,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:49:33,933 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 21:49:33,933 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 21:49:33,934 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 21:49:33,935 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:49:33,935 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 21:49:33,935 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:49:33,935 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:49:33,935 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:49:33,936 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 21:49:33,937 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 21:49:33,958 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 21:49:33,958 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 21:49:33,959 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:49:33,959 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 21:49:33,960 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:49:33,960 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:49:33,960 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:49:33,961 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 21:49:33,961 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 21:49:33,976 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 21:49:33,980 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 21:49:33,980 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-11-15 21:49:33,981 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 21:49:33,981 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 21:49:33,981 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 21:49:33,981 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-11-15 21:49:33,982 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 21:49:34,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:49:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:49:34,026 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 21:49:34,027 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:49:34,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:49:34,034 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 21:49:34,034 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:49:34,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:49:34,044 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-15 21:49:34,044 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 30 transitions. cyclomatic complexity: 11 Second operand 3 states. [2019-11-15 21:49:34,070 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 30 transitions. cyclomatic complexity: 11. Second operand 3 states. Result 40 states and 50 transitions. Complement of second has 5 states. [2019-11-15 21:49:34,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 21:49:34,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 21:49:34,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2019-11-15 21:49:34,075 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-15 21:49:34,075 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:49:34,075 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-15 21:49:34,075 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:49:34,076 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 6 letters. [2019-11-15 21:49:34,076 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:49:34,076 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 50 transitions. [2019-11-15 21:49:34,077 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2019-11-15 21:49:34,078 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 37 states and 46 transitions. [2019-11-15 21:49:34,078 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2019-11-15 21:49:34,078 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2019-11-15 21:49:34,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 46 transitions. [2019-11-15 21:49:34,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 21:49:34,079 INFO L688 BuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2019-11-15 21:49:34,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 46 transitions. [2019-11-15 21:49:34,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 26. [2019-11-15 21:49:34,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-15 21:49:34,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2019-11-15 21:49:34,082 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-15 21:49:34,082 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-15 21:49:34,082 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-15 21:49:34,083 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2019-11-15 21:49:34,083 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-11-15 21:49:34,083 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:49:34,083 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:49:34,084 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 21:49:34,084 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 21:49:34,084 INFO L791 eck$LassoCheckResult]: Stem: 553#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_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~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_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 550#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 540#L69 base2flt_#res := base2flt_~__retres4~0; 541#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; 546#L19-1 assume !(0 == base2flt_~m % 4294967296); 549#L25-1 assume base2flt_~m % 4294967296 < 16777216; 554#L37-3 [2019-11-15 21:49:34,085 INFO L793 eck$LassoCheckResult]: Loop: 554#L37-3 assume !false; 544#L28-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 545#L37-2 assume base2flt_~m % 4294967296 < 16777216; 554#L37-3 [2019-11-15 21:49:34,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:49:34,085 INFO L82 PathProgramCache]: Analyzing trace with hash 921737673, now seen corresponding path program 1 times [2019-11-15 21:49:34,085 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:49:34,088 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359120869] [2019-11-15 21:49:34,088 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:49:34,089 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:49:34,089 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:49:34,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:49:34,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:49:34,113 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:49:34,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:49:34,114 INFO L82 PathProgramCache]: Analyzing trace with hash 110419, now seen corresponding path program 1 times [2019-11-15 21:49:34,114 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:49:34,114 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795591132] [2019-11-15 21:49:34,114 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:49:34,115 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:49:34,115 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:49:34,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:49:34,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:49:34,122 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:49:34,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:49:34,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1761173643, now seen corresponding path program 1 times [2019-11-15 21:49:34,123 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:49:34,123 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583219205] [2019-11-15 21:49:34,123 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:49:34,123 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:49:34,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:49:34,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:49:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:49:34,147 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:49:34,181 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 21:49:34,182 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 21:49:34,182 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 21:49:34,182 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 21:49:34,182 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 21:49:34,182 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:49:34,182 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 21:49:34,183 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 21:49:34,183 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration3_Loop [2019-11-15 21:49:34,183 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 21:49:34,183 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 21:49:34,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:49:34,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:49:34,290 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 21:49:34,290 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_904c5bb9-2c66-4a93-9f48-22e6d567d135/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 21:49:34,308 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 21:49:34,309 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:49:34,316 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 21:49:34,316 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_904c5bb9-2c66-4a93-9f48-22e6d567d135/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 21:49:34,336 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 21:49:34,336 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_904c5bb9-2c66-4a93-9f48-22e6d567d135/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) [2019-11-15 21:49:34,359 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 21:49:34,359 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:49:34,369 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 21:49:34,371 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 21:49:34,372 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 21:49:34,372 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 21:49:34,372 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 21:49:34,372 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 21:49:34,372 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:49:34,372 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 21:49:34,372 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 21:49:34,373 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration3_Loop [2019-11-15 21:49:34,373 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 21:49:34,373 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 21:49:34,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:49:34,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:49:34,472 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 21:49:34,472 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 21:49:34,472 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 21:49:34,473 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:49:34,473 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 21:49:34,473 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:49:34,473 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:49:34,474 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:49:34,475 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 21:49:34,475 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 21:49:34,477 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 21:49:34,490 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 21:49:34,490 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:49:34,491 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 21:49:34,491 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:49:34,491 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:49:34,491 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:49:34,492 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 21:49:34,492 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 21:49:34,495 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 21:49:34,498 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 21:49:34,498 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-11-15 21:49:34,498 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 21:49:34,498 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 21:49:34,499 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 21:49:34,499 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2019-11-15 21:49:34,499 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 21:49:34,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:49:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:49:34,536 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 21:49:34,537 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:49:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:49:34,543 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 21:49:34,543 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:49:34,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:49:34,589 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-15 21:49:34,589 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 12 Second operand 4 states. [2019-11-15 21:49:34,608 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 12. Second operand 4 states. Result 44 states and 55 transitions. Complement of second has 5 states. [2019-11-15 21:49:34,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 21:49:34,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-15 21:49:34,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2019-11-15 21:49:34,611 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-15 21:49:34,611 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:49:34,611 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-15 21:49:34,612 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:49:34,612 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 6 letters. [2019-11-15 21:49:34,612 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:49:34,612 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 55 transitions. [2019-11-15 21:49:34,614 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-11-15 21:49:34,615 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 41 states and 51 transitions. [2019-11-15 21:49:34,615 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2019-11-15 21:49:34,615 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2019-11-15 21:49:34,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 51 transitions. [2019-11-15 21:49:34,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 21:49:34,616 INFO L688 BuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2019-11-15 21:49:34,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 51 transitions. [2019-11-15 21:49:34,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 29. [2019-11-15 21:49:34,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-15 21:49:34,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2019-11-15 21:49:34,619 INFO L711 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-11-15 21:49:34,619 INFO L591 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-11-15 21:49:34,619 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-15 21:49:34,619 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 38 transitions. [2019-11-15 21:49:34,620 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-15 21:49:34,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:49:34,620 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:49:34,621 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:49:34,621 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 21:49:34,621 INFO L791 eck$LassoCheckResult]: Stem: 672#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_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~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_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 669#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 656#L69 base2flt_#res := base2flt_~__retres4~0; 657#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; 665#L19-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 660#L69-1 base2flt_#res := base2flt_~__retres4~0; 658#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; 659#L19-2 assume !(0 == base2flt_~m % 4294967296); 666#L25-2 assume !(base2flt_~m % 4294967296 < 16777216); 648#L47-8 [2019-11-15 21:49:34,621 INFO L793 eck$LassoCheckResult]: Loop: 648#L47-8 assume !false; 667#L48-2 assume base2flt_~m % 4294967296 >= 33554432; 647#L49-2 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 648#L47-8 [2019-11-15 21:49:34,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:49:34,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951196, now seen corresponding path program 1 times [2019-11-15 21:49:34,622 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:49:34,622 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340630487] [2019-11-15 21:49:34,622 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:49:34,623 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:49:34,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:49:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:49:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:49:34,664 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:49:34,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:49:34,665 INFO L82 PathProgramCache]: Analyzing trace with hash 198737, now seen corresponding path program 1 times [2019-11-15 21:49:34,665 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:49:34,666 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628052380] [2019-11-15 21:49:34,666 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:49:34,666 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:49:34,666 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:49:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:49:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:49:34,688 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:49:34,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:49:34,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1766695638, now seen corresponding path program 1 times [2019-11-15 21:49:34,689 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:49:34,689 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099150431] [2019-11-15 21:49:34,689 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:49:34,690 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:49:34,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:49:34,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:49:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:49:34,741 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:49:34,767 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 21:49:34,768 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 21:49:34,768 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 21:49:34,768 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 21:49:34,768 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 21:49:34,768 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:49:34,768 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 21:49:34,769 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 21:49:34,769 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration4_Loop [2019-11-15 21:49:34,769 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 21:49:34,769 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 21:49:34,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:49:34,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:49:34,901 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 21:49:34,902 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_904c5bb9-2c66-4a93-9f48-22e6d567d135/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 21:49:34,915 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 21:49:34,915 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_904c5bb9-2c66-4a93-9f48-22e6d567d135/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 21:49:34,934 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 21:49:34,934 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:49:34,941 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 21:49:34,944 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 21:49:34,945 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 21:49:34,945 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 21:49:34,945 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 21:49:34,945 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 21:49:34,945 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:49:34,945 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 21:49:34,945 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 21:49:34,945 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration4_Loop [2019-11-15 21:49:34,946 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 21:49:34,946 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 21:49:34,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:49:34,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:49:35,037 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 21:49:35,037 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 21:49:35,038 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 21:49:35,038 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:49:35,039 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 21:49:35,039 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:49:35,039 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:49:35,039 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:49:35,040 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 21:49:35,040 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 21:49:35,043 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 21:49:35,045 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 21:49:35,045 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-11-15 21:49:35,045 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 21:49:35,045 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 21:49:35,046 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 21:49:35,046 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-11-15 21:49:35,046 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 21:49:35,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:49:35,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:49:35,085 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 21:49:35,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:49:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:49:35,093 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 21:49:35,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:49:35,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:49:35,094 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-15 21:49:35,094 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 13 Second operand 3 states. [2019-11-15 21:49:35,101 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 13. Second operand 3 states. Result 32 states and 42 transitions. Complement of second has 4 states. [2019-11-15 21:49:35,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 21:49:35,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 21:49:35,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2019-11-15 21:49:35,102 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-15 21:49:35,102 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:49:35,103 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 12 letters. Loop has 3 letters. [2019-11-15 21:49:35,103 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:49:35,103 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 6 letters. [2019-11-15 21:49:35,103 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:49:35,103 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2019-11-15 21:49:35,104 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-15 21:49:35,105 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 34 transitions. [2019-11-15 21:49:35,105 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-11-15 21:49:35,105 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-11-15 21:49:35,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 34 transitions. [2019-11-15 21:49:35,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 21:49:35,106 INFO L688 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-15 21:49:35,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 34 transitions. [2019-11-15 21:49:35,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-11-15 21:49:35,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-15 21:49:35,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2019-11-15 21:49:35,108 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-15 21:49:35,108 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-15 21:49:35,108 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-15 21:49:35,109 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2019-11-15 21:49:35,109 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-15 21:49:35,109 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:49:35,111 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:49:35,113 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:49:35,113 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 21:49:35,114 INFO L791 eck$LassoCheckResult]: Stem: 784#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_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~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_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 782#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 770#L69 base2flt_#res := base2flt_~__retres4~0; 771#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; 779#L19-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 774#L69-1 base2flt_#res := base2flt_~__retres4~0; 772#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; 773#L19-2 assume !(0 == base2flt_~m % 4294967296); 780#L25-2 assume base2flt_~m % 4294967296 < 16777216; 785#L37-5 [2019-11-15 21:49:35,114 INFO L793 eck$LassoCheckResult]: Loop: 785#L37-5 assume !false; 768#L28-2 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 769#L37-4 assume base2flt_~m % 4294967296 < 16777216; 785#L37-5 [2019-11-15 21:49:35,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:49:35,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951170, now seen corresponding path program 1 times [2019-11-15 21:49:35,115 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:49:35,115 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062171561] [2019-11-15 21:49:35,115 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:49:35,115 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:49:35,117 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:49:35,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:49:35,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:49:35,149 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:49:35,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:49:35,149 INFO L82 PathProgramCache]: Analyzing trace with hash 172978, now seen corresponding path program 1 times [2019-11-15 21:49:35,150 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:49:35,150 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218721719] [2019-11-15 21:49:35,150 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:49:35,150 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:49:35,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:49:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:49:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:49:35,155 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:49:35,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:49:35,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1765895313, now seen corresponding path program 1 times [2019-11-15 21:49:35,156 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:49:35,156 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802592640] [2019-11-15 21:49:35,156 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:49:35,156 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:49:35,157 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:49:35,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:49:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:49:35,203 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:49:35,235 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 21:49:35,235 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 21:49:35,235 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 21:49:35,236 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 21:49:35,236 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 21:49:35,236 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:49:35,236 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 21:49:35,236 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 21:49:35,236 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration5_Loop [2019-11-15 21:49:35,236 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 21:49:35,236 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 21:49:35,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:49:35,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:49:35,318 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 21:49:35,319 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_904c5bb9-2c66-4a93-9f48-22e6d567d135/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 21:49:35,335 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 21:49:35,336 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_904c5bb9-2c66-4a93-9f48-22e6d567d135/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 21:49:35,354 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 21:49:35,355 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:49:35,362 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 21:49:35,365 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 21:49:35,365 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 21:49:35,365 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 21:49:35,365 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 21:49:35,365 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 21:49:35,365 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:49:35,365 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 21:49:35,365 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 21:49:35,366 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration5_Loop [2019-11-15 21:49:35,366 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 21:49:35,366 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 21:49:35,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:49:35,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:49:35,447 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 21:49:35,447 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 21:49:35,448 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 21:49:35,448 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:49:35,449 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 21:49:35,449 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:49:35,449 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:49:35,449 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:49:35,450 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 21:49:35,450 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 21:49:35,452 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 21:49:35,453 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 21:49:35,453 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-11-15 21:49:35,454 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 21:49:35,454 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 21:49:35,454 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 21:49:35,454 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2019-11-15 21:49:35,455 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 21:49:35,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:49:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:49:35,489 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 21:49:35,490 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:49:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:49:35,495 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 21:49:35,495 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:49:35,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:49:35,514 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-15 21:49:35,514 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-11-15 21:49:35,519 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 30 states and 38 transitions. Complement of second has 4 states. [2019-11-15 21:49:35,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 21:49:35,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-15 21:49:35,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2019-11-15 21:49:35,520 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-15 21:49:35,520 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:49:35,521 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 12 letters. Loop has 3 letters. [2019-11-15 21:49:35,521 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:49:35,521 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 6 letters. [2019-11-15 21:49:35,521 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:49:35,521 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 38 transitions. [2019-11-15 21:49:35,522 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 21:49:35,522 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2019-11-15 21:49:35,522 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-15 21:49:35,522 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-15 21:49:35,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-15 21:49:35,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 21:49:35,523 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 21:49:35,523 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 21:49:35,523 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 21:49:35,523 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-15 21:49:35,523 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-15 21:49:35,523 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 21:49:35,523 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-15 21:49:35,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 09:49:35 BoogieIcfgContainer [2019-11-15 21:49:35,529 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 21:49:35,529 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:49:35,530 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:49:35,530 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:49:35,530 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:49:32" (3/4) ... [2019-11-15 21:49:35,533 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 21:49:35,533 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:49:35,535 INFO L168 Benchmark]: Toolchain (without parser) took 4120.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -87.7 MB). Peak memory consumption was 48.6 MB. Max. memory is 11.5 GB. [2019-11-15 21:49:35,536 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:49:35,537 INFO L168 Benchmark]: CACSL2BoogieTranslator took 395.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -186.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-15 21:49:35,537 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 21:49:35,537 INFO L168 Benchmark]: Boogie Preprocessor took 37.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:49:35,538 INFO L168 Benchmark]: RCFGBuilder took 671.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.9 MB). Peak memory consumption was 35.9 MB. Max. memory is 11.5 GB. [2019-11-15 21:49:35,539 INFO L168 Benchmark]: BuchiAutomizer took 2961.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.7 MB). Peak memory consumption was 52.7 MB. Max. memory is 11.5 GB. [2019-11-15 21:49:35,539 INFO L168 Benchmark]: Witness Printer took 3.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 11.5 GB. [2019-11-15 21:49:35,543 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 395.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -186.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 671.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.9 MB). Peak memory consumption was 35.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2961.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.7 MB). Peak memory consumption was 52.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (1 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * e + 253 and consists of 4 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 34 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 29 states and ocurred in iteration 3. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 253 SDtfs, 221 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: 40ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...