./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 8bbbd483a09fdeea97ffdf681e0639d6c4265da0 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 03:05:32,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:05:32,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:05:32,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:05:32,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:05:32,067 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:05:32,069 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:05:32,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:05:32,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:05:32,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:05:32,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:05:32,077 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:05:32,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:05:32,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:05:32,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:05:32,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:05:32,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:05:32,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:05:32,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:05:32,087 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:05:32,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:05:32,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:05:32,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:05:32,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:05:32,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:05:32,097 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:05:32,097 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:05:32,098 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:05:32,099 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:05:32,100 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:05:32,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:05:32,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:05:32,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:05:32,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:05:32,105 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:05:32,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:05:32,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:05:32,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:05:32,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:05:32,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:05:32,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:05:32,110 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 03:05:32,127 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:05:32,128 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:05:32,129 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:05:32,129 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:05:32,129 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:05:32,130 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:05:32,130 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:05:32,130 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:05:32,131 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:05:32,131 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:05:32,131 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:05:32,132 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:05:32,132 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 03:05:32,132 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:05:32,132 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:05:32,133 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 03:05:32,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:05:32,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:05:32,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:05:32,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:05:32,134 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 03:05:32,134 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:05:32,135 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:05:32,135 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:05:32,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:05:32,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:05:32,136 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:05:32,136 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:05:32,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:05:32,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:05:32,137 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:05:32,138 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:05:32,138 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 8bbbd483a09fdeea97ffdf681e0639d6c4265da0 [2019-11-28 03:05:32,444 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:05:32,456 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:05:32,460 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:05:32,462 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:05:32,462 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:05:32,463 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c [2019-11-28 03:05:32,525 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/430fa1c70/79cf5499b12544a2bd4f7a0241ce5e32/FLAG67ebeb25b [2019-11-28 03:05:32,955 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:05:32,955 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c [2019-11-28 03:05:32,970 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/430fa1c70/79cf5499b12544a2bd4f7a0241ce5e32/FLAG67ebeb25b [2019-11-28 03:05:33,355 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/430fa1c70/79cf5499b12544a2bd4f7a0241ce5e32 [2019-11-28 03:05:33,359 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:05:33,361 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:05:33,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:05:33,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:05:33,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:05:33,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:05:33" (1/1) ... [2019-11-28 03:05:33,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b116752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:33, skipping insertion in model container [2019-11-28 03:05:33,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:05:33" (1/1) ... [2019-11-28 03:05:33,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:05:33,440 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:05:33,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:05:33,660 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:05:33,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:05:33,793 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:05:33,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:33 WrapperNode [2019-11-28 03:05:33,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:05:33,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:05:33,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:05:33,795 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:05:33,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:33" (1/1) ... [2019-11-28 03:05:33,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:33" (1/1) ... [2019-11-28 03:05:33,870 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:05:33,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:05:33,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:05:33,874 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:05:33,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:33" (1/1) ... [2019-11-28 03:05:33,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:33" (1/1) ... [2019-11-28 03:05:33,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:33" (1/1) ... [2019-11-28 03:05:33,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:33" (1/1) ... [2019-11-28 03:05:33,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:33" (1/1) ... [2019-11-28 03:05:33,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:33" (1/1) ... [2019-11-28 03:05:33,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:33" (1/1) ... [2019-11-28 03:05:33,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:05:33,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:05:33,953 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:05:33,953 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:05:33,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 03:05:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:05:34,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:05:34,732 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:05:34,732 INFO L297 CfgBuilder]: Removed 28 assume(true) statements. [2019-11-28 03:05:34,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:05:34 BoogieIcfgContainer [2019-11-28 03:05:34,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:05:34,734 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:05:34,734 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:05:34,739 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:05:34,740 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:05:34,740 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:05:33" (1/3) ... [2019-11-28 03:05:34,741 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36e3c2ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:05:34, skipping insertion in model container [2019-11-28 03:05:34,741 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:05:34,741 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:33" (2/3) ... [2019-11-28 03:05:34,742 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36e3c2ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:05:34, skipping insertion in model container [2019-11-28 03:05:34,742 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:05:34,742 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:05:34" (3/3) ... [2019-11-28 03:05:34,744 INFO L371 chiAutomizerObserver]: Analyzing ICFG soft_float_1-2a.c.cil.c [2019-11-28 03:05:34,809 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:05:34,810 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:05:34,810 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:05:34,811 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:05:34,811 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:05:34,812 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:05:34,812 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:05:34,812 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:05:34,835 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2019-11-28 03:05:34,865 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2019-11-28 03:05:34,866 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:05:34,866 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:05:34,874 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-28 03:05:34,874 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 03:05:34,874 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:05:34,875 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2019-11-28 03:05:34,881 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2019-11-28 03:05:34,881 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:05:34,882 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:05:34,882 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-28 03:05:34,882 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 03:05:34,891 INFO L794 eck$LassoCheckResult]: Stem: 40#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet1;havoc main_#t~nondet1;main_~ea~2 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~b~0;main_~mb~2 := main_#t~nondet3;havoc main_#t~nondet3;main_~eb~2 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 65#L20true assume !(0 == base2flt_~m % 4294967296); 26#L26true assume !(base2flt_~m % 4294967296 < 16777216); 46#L48-2true [2019-11-28 03:05:34,892 INFO L796 eck$LassoCheckResult]: Loop: 46#L48-2true assume !false; 59#L49true assume base2flt_~m % 4294967296 >= 33554432; 79#L50true assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 46#L48-2true [2019-11-28 03:05:34,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:05:34,899 INFO L82 PathProgramCache]: Analyzing trace with hash 30973, now seen corresponding path program 1 times [2019-11-28 03:05:34,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:05:34,910 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924949519] [2019-11-28 03:05:34,910 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:05:34,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:05:35,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:05:35,082 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924949519] [2019-11-28 03:05:35,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:05:35,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 03:05:35,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84631171] [2019-11-28 03:05:35,091 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-28 03:05:35,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:05:35,091 INFO L82 PathProgramCache]: Analyzing trace with hash 73619, now seen corresponding path program 1 times [2019-11-28 03:05:35,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:05:35,092 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50182035] [2019-11-28 03:05:35,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:05:35,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:35,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:35,138 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:05:35,182 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:05:35,183 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:05:35,183 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:05:35,183 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:05:35,183 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 03:05:35,184 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:35,184 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:05:35,184 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:05:35,184 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration1_Loop [2019-11-28 03:05:35,184 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:05:35,185 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:05:35,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:35,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:35,350 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:05:35,350 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:05:35,359 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:05:35,359 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:05:35,380 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 03:05:35,381 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:35,402 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 03:05:35,405 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:05:35,406 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:05:35,406 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:05:35,406 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:05:35,406 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:05:35,406 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:35,406 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:05:35,407 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:05:35,407 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration1_Loop [2019-11-28 03:05:35,407 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:05:35,407 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:05:35,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:35,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:35,540 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:05:35,546 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:05:35,552 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 [2019-11-28 03:05:35,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:05:35,555 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:05:35,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:05:35,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:05:35,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:05:35,559 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:05:35,559 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:35,565 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:05:35,573 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-28 03:05:35,573 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:05:35,589 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 03:05:35,590 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 03:05:35,591 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:05:35,591 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-11-28 03:05:35,597 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:35,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:05:35,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:05:35,641 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:05:35,643 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:05:35,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:05:35,655 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 03:05:35,655 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:05:35,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:05:35,675 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 [2019-11-28 03:05:35,677 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 86 states. Second operand 3 states. [2019-11-28 03:05:35,770 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 86 states.. Second operand 3 states. Result 254 states and 411 transitions. Complement of second has 6 states. [2019-11-28 03:05:35,771 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 [2019-11-28 03:05:35,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 03:05:35,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 269 transitions. [2019-11-28 03:05:35,777 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 269 transitions. Stem has 3 letters. Loop has 3 letters. [2019-11-28 03:05:35,779 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:05:35,779 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 269 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-28 03:05:35,780 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:05:35,780 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 269 transitions. Stem has 3 letters. Loop has 6 letters. [2019-11-28 03:05:35,780 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:05:35,782 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 254 states and 411 transitions. [2019-11-28 03:05:35,794 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2019-11-28 03:05:35,801 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 254 states to 56 states and 81 transitions. [2019-11-28 03:05:35,803 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2019-11-28 03:05:35,804 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2019-11-28 03:05:35,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 81 transitions. [2019-11-28 03:05:35,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:05:35,805 INFO L688 BuchiCegarLoop]: Abstraction has 56 states and 81 transitions. [2019-11-28 03:05:35,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 81 transitions. [2019-11-28 03:05:35,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 45. [2019-11-28 03:05:35,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-11-28 03:05:35,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 69 transitions. [2019-11-28 03:05:35,847 INFO L711 BuchiCegarLoop]: Abstraction has 45 states and 69 transitions. [2019-11-28 03:05:35,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:05:35,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 03:05:35,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 03:05:35,852 INFO L87 Difference]: Start difference. First operand 45 states and 69 transitions. Second operand 3 states. [2019-11-28 03:05:35,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:05:35,915 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2019-11-28 03:05:35,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 03:05:35,917 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2019-11-28 03:05:35,918 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-11-28 03:05:35,919 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 30 transitions. [2019-11-28 03:05:35,919 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2019-11-28 03:05:35,919 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2019-11-28 03:05:35,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2019-11-28 03:05:35,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:05:35,920 INFO L688 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-28 03:05:35,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2019-11-28 03:05:35,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-28 03:05:35,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-28 03:05:35,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2019-11-28 03:05:35,924 INFO L711 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-28 03:05:35,924 INFO L591 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-28 03:05:35,924 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:05:35,925 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. [2019-11-28 03:05:35,925 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-11-28 03:05:35,926 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:05:35,926 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:05:35,927 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:05:35,927 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 03:05:35,927 INFO L794 eck$LassoCheckResult]: Stem: 469#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet1;havoc main_#t~nondet1;main_~ea~2 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~b~0;main_~mb~2 := main_#t~nondet3;havoc main_#t~nondet3;main_~eb~2 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 468#L20 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 459#L70 base2flt_#res := base2flt_~__retres4~0; 460#L71 main_#t~ret5 := base2flt_#res;main_~zero~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 465#L20-1 assume !(0 == base2flt_~m % 4294967296); 467#L26-1 assume !(base2flt_~m % 4294967296 < 16777216); 462#L48-5 [2019-11-28 03:05:35,928 INFO L796 eck$LassoCheckResult]: Loop: 462#L48-5 assume !false; 453#L49-1 assume base2flt_~m % 4294967296 >= 33554432; 455#L50-1 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 462#L48-5 [2019-11-28 03:05:35,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:05:35,929 INFO L82 PathProgramCache]: Analyzing trace with hash 921737699, now seen corresponding path program 1 times [2019-11-28 03:05:35,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:05:35,929 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009713099] [2019-11-28 03:05:35,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:05:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:35,953 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:05:35,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:05:35,954 INFO L82 PathProgramCache]: Analyzing trace with hash 136178, now seen corresponding path program 1 times [2019-11-28 03:05:35,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:05:35,955 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136066878] [2019-11-28 03:05:35,956 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:05:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:35,971 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:05:35,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:05:35,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1761973968, now seen corresponding path program 1 times [2019-11-28 03:05:35,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:05:35,972 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860846869] [2019-11-28 03:05:35,973 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:05:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:36,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:36,040 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:05:36,075 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:05:36,075 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:05:36,075 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:05:36,076 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:05:36,076 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 03:05:36,076 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:36,076 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:05:36,076 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:05:36,076 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration2_Loop [2019-11-28 03:05:36,076 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:05:36,077 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:05:36,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:36,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:36,185 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:05:36,185 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:05:36,192 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:05:36,192 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 [2019-11-28 03:05:36,202 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 03:05:36,203 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: [] [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Exception during sending of exit command (exit): Broken pipe No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:05:36,218 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:05:36,218 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:05:36,236 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 03:05:36,236 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:36,249 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 03:05:36,252 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:05:36,252 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:05:36,252 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:05:36,252 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:05:36,252 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:05:36,253 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:36,253 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:05:36,253 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:05:36,253 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration2_Loop [2019-11-28 03:05:36,253 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:05:36,253 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:05:36,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:36,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:36,394 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:05:36,395 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:36,404 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 [2019-11-28 03:05:36,406 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:05:36,406 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:05:36,406 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:05:36,406 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:05:36,406 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:05:36,410 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:05:36,411 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:05:36,414 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:05:36,431 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 [2019-11-28 03:05:36,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:05:36,434 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:05:36,434 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:05:36,434 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:05:36,434 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:05:36,436 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:05:36,436 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:36,439 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:05:36,448 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-28 03:05:36,448 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:36,456 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 03:05:36,456 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 03:05:36,456 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:05:36,456 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-11-28 03:05:36,464 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-28 03:05:36,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:05:36,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:05:36,531 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:05:36,532 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:05:36,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:05:36,538 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 03:05:36,539 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:05:36,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:05:36,540 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 [2019-11-28 03:05:36,540 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 30 transitions. cyclomatic complexity: 11 Second operand 3 states. [2019-11-28 03:05:36,557 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. [2019-11-28 03:05:36,557 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 [2019-11-28 03:05:36,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 03:05:36,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2019-11-28 03:05:36,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-28 03:05:36,559 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:05:36,559 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-28 03:05:36,559 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:05:36,559 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 6 letters. [2019-11-28 03:05:36,560 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:05:36,560 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 50 transitions. [2019-11-28 03:05:36,561 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2019-11-28 03:05:36,561 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 37 states and 46 transitions. [2019-11-28 03:05:36,562 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2019-11-28 03:05:36,562 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2019-11-28 03:05:36,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 46 transitions. [2019-11-28 03:05:36,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:05:36,562 INFO L688 BuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2019-11-28 03:05:36,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 46 transitions. [2019-11-28 03:05:36,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 26. [2019-11-28 03:05:36,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-28 03:05:36,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2019-11-28 03:05:36,565 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-28 03:05:36,565 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-28 03:05:36,566 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 03:05:36,566 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2019-11-28 03:05:36,566 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-11-28 03:05:36,567 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:05:36,567 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:05:36,567 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:05:36,567 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 03:05:36,567 INFO L794 eck$LassoCheckResult]: Stem: 581#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet1;havoc main_#t~nondet1;main_~ea~2 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~b~0;main_~mb~2 := main_#t~nondet3;havoc main_#t~nondet3;main_~eb~2 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 580#L20 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 571#L70 base2flt_#res := base2flt_~__retres4~0; 572#L71 main_#t~ret5 := base2flt_#res;main_~zero~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 577#L20-1 assume !(0 == base2flt_~m % 4294967296); 579#L26-1 assume base2flt_~m % 4294967296 < 16777216; 584#L38-3 [2019-11-28 03:05:36,568 INFO L796 eck$LassoCheckResult]: Loop: 584#L38-3 assume !false; 575#L29-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 576#L38-2 assume base2flt_~m % 4294967296 < 16777216; 584#L38-3 [2019-11-28 03:05:36,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:05:36,568 INFO L82 PathProgramCache]: Analyzing trace with hash 921737673, now seen corresponding path program 1 times [2019-11-28 03:05:36,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:05:36,569 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292717787] [2019-11-28 03:05:36,569 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:05:36,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:36,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:36,601 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:05:36,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:05:36,602 INFO L82 PathProgramCache]: Analyzing trace with hash 110419, now seen corresponding path program 1 times [2019-11-28 03:05:36,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:05:36,602 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519540429] [2019-11-28 03:05:36,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:05:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:36,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:36,619 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:05:36,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:05:36,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1761173643, now seen corresponding path program 1 times [2019-11-28 03:05:36,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:05:36,623 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355857777] [2019-11-28 03:05:36,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:05:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:36,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:36,672 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:05:36,698 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:05:36,699 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:05:36,699 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:05:36,699 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:05:36,699 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 03:05:36,699 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:36,700 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:05:36,700 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:05:36,700 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration3_Loop [2019-11-28 03:05:36,700 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:05:36,700 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:05:36,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:36,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:36,792 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:05:36,793 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:05:36,802 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:05:36,802 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:36,810 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 03:05:36,810 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:05:36,832 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:05:36,832 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:05:36,854 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 03:05:36,854 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 03:05:36,873 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:36,876 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:05:36,876 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:05:36,877 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:05:36,877 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:05:36,877 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:05:36,877 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:36,877 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:05:36,877 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:05:36,877 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration3_Loop [2019-11-28 03:05:36,878 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:05:36,878 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:05:36,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:36,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:37,026 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:05:37,026 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:37,031 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 [2019-11-28 03:05:37,033 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:05:37,033 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:05:37,033 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:05:37,033 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:05:37,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:05:37,035 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:05:37,035 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:05:37,039 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:37,053 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 [2019-11-28 03:05:37,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:05:37,055 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:05:37,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:05:37,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:05:37,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:05:37,057 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:05:37,057 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:05:37,060 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:05:37,065 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-28 03:05:37,065 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:05:37,074 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 03:05:37,074 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 03:05:37,074 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:05:37,075 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:37,078 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-28 03:05:37,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:05:37,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:05:37,112 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:05:37,113 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:05:37,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:05:37,119 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 03:05:37,119 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:05:37,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:05:37,152 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 [2019-11-28 03:05:37,152 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 12 Second operand 4 states. [2019-11-28 03:05:37,170 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. [2019-11-28 03:05:37,175 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 [2019-11-28 03:05:37,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 03:05:37,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2019-11-28 03:05:37,176 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-28 03:05:37,176 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:05:37,176 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-28 03:05:37,176 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:05:37,177 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 6 letters. [2019-11-28 03:05:37,177 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:05:37,177 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 55 transitions. [2019-11-28 03:05:37,178 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-11-28 03:05:37,179 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 41 states and 51 transitions. [2019-11-28 03:05:37,179 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2019-11-28 03:05:37,179 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2019-11-28 03:05:37,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 51 transitions. [2019-11-28 03:05:37,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:05:37,180 INFO L688 BuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2019-11-28 03:05:37,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 51 transitions. [2019-11-28 03:05:37,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 29. [2019-11-28 03:05:37,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-28 03:05:37,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2019-11-28 03:05:37,183 INFO L711 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-11-28 03:05:37,183 INFO L591 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-11-28 03:05:37,183 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 03:05:37,183 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 38 transitions. [2019-11-28 03:05:37,184 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-28 03:05:37,184 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:05:37,184 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:05:37,184 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:05:37,184 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 03:05:37,185 INFO L794 eck$LassoCheckResult]: Stem: 700#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet1;havoc main_#t~nondet1;main_~ea~2 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~b~0;main_~mb~2 := main_#t~nondet3;havoc main_#t~nondet3;main_~eb~2 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 699#L20 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 690#L70 base2flt_#res := base2flt_~__retres4~0; 691#L71 main_#t~ret5 := base2flt_#res;main_~zero~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 696#L20-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 679#L70-1 base2flt_#res := base2flt_~__retres4~0; 680#L71-1 main_#t~ret6 := base2flt_#res;main_~a~0 := main_#t~ret6;havoc main_#t~ret6;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 689#L20-2 assume !(0 == base2flt_~m % 4294967296); 697#L26-2 assume !(base2flt_~m % 4294967296 < 16777216); 686#L48-8 [2019-11-28 03:05:37,185 INFO L796 eck$LassoCheckResult]: Loop: 686#L48-8 assume !false; 677#L49-2 assume base2flt_~m % 4294967296 >= 33554432; 678#L50-2 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 686#L48-8 [2019-11-28 03:05:37,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:05:37,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951196, now seen corresponding path program 1 times [2019-11-28 03:05:37,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:05:37,186 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658456214] [2019-11-28 03:05:37,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:05:37,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:37,206 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:05:37,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:05:37,207 INFO L82 PathProgramCache]: Analyzing trace with hash 198737, now seen corresponding path program 1 times [2019-11-28 03:05:37,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:05:37,208 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273841341] [2019-11-28 03:05:37,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:05:37,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:37,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:37,218 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:05:37,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:05:37,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1766695638, now seen corresponding path program 1 times [2019-11-28 03:05:37,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:05:37,219 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968159024] [2019-11-28 03:05:37,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:05:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:37,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:37,243 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:05:37,275 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:05:37,276 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:05:37,276 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:05:37,276 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:05:37,276 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 03:05:37,276 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:37,276 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:05:37,276 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:05:37,276 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration4_Loop [2019-11-28 03:05:37,277 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:05:37,277 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:05:37,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:37,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:37,423 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:05:37,423 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:05:37,436 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:05:37,437 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:05:37,463 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 03:05:37,463 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:37,473 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 03:05:37,477 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:05:37,477 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:05:37,478 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:05:37,478 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:05:37,478 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:05:37,478 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:37,478 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:05:37,478 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:05:37,479 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration4_Loop [2019-11-28 03:05:37,479 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:05:37,479 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:05:37,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:37,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:37,592 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:05:37,592 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:05:37,604 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 [2019-11-28 03:05:37,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:05:37,609 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:05:37,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:05:37,610 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:05:37,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:05:37,611 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:05:37,611 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:37,615 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:05:37,618 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-28 03:05:37,618 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:05:37,623 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 03:05:37,623 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 03:05:37,624 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:05:37,624 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-11-28 03:05:37,635 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:37,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:05:37,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:05:37,710 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:05:37,712 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:05:37,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:05:37,719 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 03:05:37,719 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:05:37,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:05:37,720 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-28 03:05:37,720 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 13 Second operand 3 states. [2019-11-28 03:05:37,738 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. [2019-11-28 03:05:37,740 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 [2019-11-28 03:05:37,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 03:05:37,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2019-11-28 03:05:37,741 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-28 03:05:37,741 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:05:37,741 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 12 letters. Loop has 3 letters. [2019-11-28 03:05:37,741 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:05:37,741 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 6 letters. [2019-11-28 03:05:37,742 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:05:37,742 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2019-11-28 03:05:37,743 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 03:05:37,744 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 34 transitions. [2019-11-28 03:05:37,744 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-11-28 03:05:37,744 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-11-28 03:05:37,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 34 transitions. [2019-11-28 03:05:37,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:05:37,745 INFO L688 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-28 03:05:37,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 34 transitions. [2019-11-28 03:05:37,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-11-28 03:05:37,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-28 03:05:37,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2019-11-28 03:05:37,748 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-28 03:05:37,748 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-28 03:05:37,748 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-28 03:05:37,748 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2019-11-28 03:05:37,749 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 03:05:37,749 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:05:37,749 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:05:37,750 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:05:37,750 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 03:05:37,750 INFO L794 eck$LassoCheckResult]: Stem: 813#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet1;havoc main_#t~nondet1;main_~ea~2 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~b~0;main_~mb~2 := main_#t~nondet3;havoc main_#t~nondet3;main_~eb~2 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 812#L20 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 802#L70 base2flt_#res := base2flt_~__retres4~0; 803#L71 main_#t~ret5 := base2flt_#res;main_~zero~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 809#L20-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 793#L70-1 base2flt_#res := base2flt_~__retres4~0; 794#L71-1 main_#t~ret6 := base2flt_#res;main_~a~0 := main_#t~ret6;havoc main_#t~ret6;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 804#L20-2 assume !(0 == base2flt_~m % 4294967296); 810#L26-2 assume base2flt_~m % 4294967296 < 16777216; 815#L38-5 [2019-11-28 03:05:37,750 INFO L796 eck$LassoCheckResult]: Loop: 815#L38-5 assume !false; 800#L29-2 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 801#L38-4 assume base2flt_~m % 4294967296 < 16777216; 815#L38-5 [2019-11-28 03:05:37,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:05:37,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951170, now seen corresponding path program 1 times [2019-11-28 03:05:37,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:05:37,751 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787475509] [2019-11-28 03:05:37,752 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:05:37,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:37,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:37,799 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:05:37,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:05:37,800 INFO L82 PathProgramCache]: Analyzing trace with hash 172978, now seen corresponding path program 1 times [2019-11-28 03:05:37,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:05:37,801 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416851024] [2019-11-28 03:05:37,801 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:05:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:37,807 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:05:37,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:05:37,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1765895313, now seen corresponding path program 1 times [2019-11-28 03:05:37,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:05:37,809 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367440887] [2019-11-28 03:05:37,809 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:05:37,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:37,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:37,831 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:05:37,857 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:05:37,857 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:05:37,857 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:05:37,857 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:05:37,858 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 03:05:37,858 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:37,858 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:05:37,858 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:05:37,858 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration5_Loop [2019-11-28 03:05:37,858 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:05:37,858 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:05:37,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:37,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:37,939 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:05:37,939 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:05:37,961 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:05:37,961 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:37,976 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 03:05:37,976 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 03:05:37,984 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 03:05:37,988 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:05:37,988 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:05:37,988 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:05:37,988 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:05:37,988 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:05:37,988 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:37,988 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:05:37,988 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:05:37,988 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration5_Loop [2019-11-28 03:05:37,989 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:05:37,989 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:05:37,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:37,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:38,062 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:05:38,063 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:38,070 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 [2019-11-28 03:05:38,072 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:05:38,072 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:05:38,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:05:38,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:05:38,073 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:05:38,078 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:05:38,078 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:05:38,082 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:05:38,091 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-28 03:05:38,091 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:05:38,095 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 03:05:38,096 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 03:05:38,096 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:05:38,096 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2019-11-28 03:05:38,098 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:38,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:05:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:05:38,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:05:38,139 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:05:38,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:05:38,145 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 03:05:38,146 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:05:38,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:05:38,177 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 [2019-11-28 03:05:38,178 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-11-28 03:05:38,187 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. [2019-11-28 03:05:38,188 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 [2019-11-28 03:05:38,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 03:05:38,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2019-11-28 03:05:38,189 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-28 03:05:38,189 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:05:38,189 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 12 letters. Loop has 3 letters. [2019-11-28 03:05:38,189 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:05:38,189 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 6 letters. [2019-11-28 03:05:38,192 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:05:38,192 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 38 transitions. [2019-11-28 03:05:38,194 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:05:38,194 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2019-11-28 03:05:38,194 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 03:05:38,194 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 03:05:38,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 03:05:38,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:05:38,195 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:05:38,195 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:05:38,195 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:05:38,195 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-28 03:05:38,195 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 03:05:38,195 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:05:38,195 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 03:05:38,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:05:38 BoogieIcfgContainer [2019-11-28 03:05:38,203 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:05:38,203 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:05:38,203 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:05:38,204 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:05:38,204 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:05:34" (3/4) ... [2019-11-28 03:05:38,208 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 03:05:38,208 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:05:38,211 INFO L168 Benchmark]: Toolchain (without parser) took 4849.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 219.7 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -141.6 MB). Peak memory consumption was 78.1 MB. Max. memory is 11.5 GB. [2019-11-28 03:05:38,211 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:05:38,212 INFO L168 Benchmark]: CACSL2BoogieTranslator took 431.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -171.5 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-11-28 03:05:38,213 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.41 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. [2019-11-28 03:05:38,213 INFO L168 Benchmark]: Boogie Preprocessor took 78.02 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:05:38,214 INFO L168 Benchmark]: RCFGBuilder took 782.21 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: 37.5 MB). Peak memory consumption was 37.5 MB. Max. memory is 11.5 GB. [2019-11-28 03:05:38,215 INFO L168 Benchmark]: BuchiAutomizer took 3468.53 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 81.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -14.2 MB). Peak memory consumption was 67.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:05:38,215 INFO L168 Benchmark]: Witness Printer took 4.90 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. [2019-11-28 03:05:38,220 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 431.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -171.5 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.41 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. * Boogie Preprocessor took 78.02 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 782.21 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: 37.5 MB). Peak memory consumption was 37.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3468.53 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 81.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -14.2 MB). Peak memory consumption was 67.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.90 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. * 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 3.4s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 2.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. 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: 272 SDtfs, 240 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: 43ms 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...