./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fa5701cbf2aecb18d72b6e5744b88307065d31ab ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:57:29,431 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:57:29,433 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:57:29,448 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:57:29,448 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:57:29,450 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:57:29,452 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:57:29,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:57:29,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:57:29,469 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:57:29,470 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:57:29,471 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:57:29,471 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:57:29,474 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:57:29,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:57:29,476 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:57:29,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:57:29,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:57:29,480 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:57:29,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:57:29,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:57:29,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:57:29,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:57:29,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:57:29,495 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:57:29,495 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:57:29,495 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:57:29,497 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:57:29,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:57:29,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:57:29,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:57:29,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:57:29,500 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:57:29,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:57:29,501 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:57:29,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:57:29,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:57:29,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:57:29,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:57:29,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:57:29,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:57:29,505 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-25 08:57:29,539 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:57:29,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:57:29,540 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:57:29,540 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:57:29,541 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:57:29,541 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:57:29,541 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:57:29,541 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:57:29,541 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:57:29,541 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:57:29,542 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:57:29,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:57:29,542 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:57:29,542 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:57:29,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:57:29,543 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:57:29,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:57:29,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:57:29,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:57:29,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:57:29,543 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:57:29,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:57:29,544 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:57:29,544 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:57:29,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:57:29,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:57:29,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:57:29,545 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:57:29,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:57:29,545 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:57:29,545 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:57:29,546 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:57:29,546 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa5701cbf2aecb18d72b6e5744b88307065d31ab [2019-11-25 08:57:29,675 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:57:29,685 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:57:29,688 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:57:29,689 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:57:29,689 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:57:29,690 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2019-11-25 08:57:29,749 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/data/ce845789e/4020dff25d9c426189512426bea30cf4/FLAGf99b97124 [2019-11-25 08:57:30,154 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:57:30,154 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2019-11-25 08:57:30,161 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/data/ce845789e/4020dff25d9c426189512426bea30cf4/FLAGf99b97124 [2019-11-25 08:57:30,544 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/data/ce845789e/4020dff25d9c426189512426bea30cf4 [2019-11-25 08:57:30,547 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:57:30,548 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:57:30,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:57:30,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:57:30,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:57:30,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:57:30" (1/1) ... [2019-11-25 08:57:30,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bdb207b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:30, skipping insertion in model container [2019-11-25 08:57:30,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:57:30" (1/1) ... [2019-11-25 08:57:30,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:57:30,596 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:57:30,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:57:30,941 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:57:30,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:57:31,010 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:57:31,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:31 WrapperNode [2019-11-25 08:57:31,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:57:31,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:57:31,011 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:57:31,011 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:57:31,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:31" (1/1) ... [2019-11-25 08:57:31,028 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:31" (1/1) ... [2019-11-25 08:57:31,079 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:57:31,081 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:57:31,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:57:31,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:57:31,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:31" (1/1) ... [2019-11-25 08:57:31,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:31" (1/1) ... [2019-11-25 08:57:31,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:31" (1/1) ... [2019-11-25 08:57:31,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:31" (1/1) ... [2019-11-25 08:57:31,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:31" (1/1) ... [2019-11-25 08:57:31,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:31" (1/1) ... [2019-11-25 08:57:31,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:31" (1/1) ... [2019-11-25 08:57:31,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:57:31,122 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:57:31,123 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:57:31,123 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:57:31,124 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:31,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:57:31,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:57:31,623 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:57:31,624 INFO L284 CfgBuilder]: Removed 34 assume(true) statements. [2019-11-25 08:57:31,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:31 BoogieIcfgContainer [2019-11-25 08:57:31,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:57:31,625 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:57:31,626 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:57:31,629 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:57:31,629 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:57:31,629 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:57:30" (1/3) ... [2019-11-25 08:57:31,630 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@24191769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:57:31, skipping insertion in model container [2019-11-25 08:57:31,630 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:57:31,631 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:31" (2/3) ... [2019-11-25 08:57:31,631 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@24191769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:57:31, skipping insertion in model container [2019-11-25 08:57:31,631 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:57:31,631 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:31" (3/3) ... [2019-11-25 08:57:31,632 INFO L371 chiAutomizerObserver]: Analyzing ICFG soft_float_4-3a.c.cil.c [2019-11-25 08:57:31,670 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:57:31,670 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:57:31,670 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:57:31,671 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:57:31,671 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:57:31,671 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:57:31,671 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:57:31,671 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:57:31,686 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states. [2019-11-25 08:57:31,708 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2019-11-25 08:57:31,708 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:31,708 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:31,712 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-25 08:57:31,712 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:57:31,713 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:57:31,713 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states. [2019-11-25 08:57:31,718 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2019-11-25 08:57:31,718 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:31,718 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:31,719 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-25 08:57:31,719 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:57:31,724 INFO L794 eck$LassoCheckResult]: Stem: 44#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 40#L19true assume !(0 == base2flt_~m % 4294967296); 28#L25true assume !(base2flt_~m % 4294967296 < 16777216); 21#L47-2true [2019-11-25 08:57:31,724 INFO L796 eck$LassoCheckResult]: Loop: 21#L47-2true assume !false; 34#L48true assume base2flt_~m % 4294967296 >= 33554432; 56#L49true assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 21#L47-2true [2019-11-25 08:57:31,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:31,729 INFO L82 PathProgramCache]: Analyzing trace with hash 30973, now seen corresponding path program 1 times [2019-11-25 08:57:31,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:31,735 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95450913] [2019-11-25 08:57:31,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:31,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:31,883 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95450913] [2019-11-25 08:57:31,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:31,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-25 08:57:31,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717703504] [2019-11-25 08:57:31,888 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-25 08:57:31,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:31,889 INFO L82 PathProgramCache]: Analyzing trace with hash 73619, now seen corresponding path program 1 times [2019-11-25 08:57:31,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:31,889 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405162753] [2019-11-25 08:57:31,889 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:31,921 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:31,974 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:57:31,975 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:57:31,975 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:57:31,975 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:57:31,975 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:57:31,976 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:31,976 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:57:31,976 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:57:31,976 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration1_Loop [2019-11-25 08:57:31,976 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:57:31,977 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:57:31,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:32,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:32,123 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:57:32,123 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:57:32,138 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:57:32,139 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:57:32,160 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:57:32,160 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 [2019-11-25 08:57:32,174 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:57:32,176 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:57:32,176 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:57:32,177 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:57:32,177 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:57:32,177 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:57:32,177 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:32,177 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:57:32,177 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:57:32,178 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration1_Loop [2019-11-25 08:57:32,178 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:57:32,178 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:57:32,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:32,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:32,302 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:57:32,307 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:57:32,312 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:57:32,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:32,315 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:57:32,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:32,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:32,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:32,318 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:57:32,318 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 [2019-11-25 08:57:32,321 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:57:32,329 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-25 08:57:32,330 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:57:32,338 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:57:32,338 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:57:32,339 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:57:32,340 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-11-25 08:57:32,346 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 [2019-11-25 08:57:32,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:32,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:32,403 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:57:32,405 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:32,417 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:57:32,418 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:32,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:32,436 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 [2019-11-25 08:57:32,438 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 78 states. Second operand 3 states. [2019-11-25 08:57:32,536 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 78 states.. Second operand 3 states. Result 232 states and 360 transitions. Complement of second has 6 states. [2019-11-25 08:57:32,539 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 [2019-11-25 08:57:32,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:57:32,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 235 transitions. [2019-11-25 08:57:32,545 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 235 transitions. Stem has 3 letters. Loop has 3 letters. [2019-11-25 08:57:32,546 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:32,546 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 235 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-25 08:57:32,547 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:32,547 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 235 transitions. Stem has 3 letters. Loop has 6 letters. [2019-11-25 08:57:32,547 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:32,548 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 232 states and 360 transitions. [2019-11-25 08:57:32,566 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2019-11-25 08:57:32,575 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 232 states to 56 states and 81 transitions. [2019-11-25 08:57:32,576 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2019-11-25 08:57:32,576 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2019-11-25 08:57:32,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 81 transitions. [2019-11-25 08:57:32,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:57:32,577 INFO L688 BuchiCegarLoop]: Abstraction has 56 states and 81 transitions. [2019-11-25 08:57:32,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 81 transitions. [2019-11-25 08:57:32,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 45. [2019-11-25 08:57:32,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-11-25 08:57:32,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 69 transitions. [2019-11-25 08:57:32,600 INFO L711 BuchiCegarLoop]: Abstraction has 45 states and 69 transitions. [2019-11-25 08:57:32,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:57:32,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:57:32,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:57:32,603 INFO L87 Difference]: Start difference. First operand 45 states and 69 transitions. Second operand 3 states. [2019-11-25 08:57:32,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:32,643 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2019-11-25 08:57:32,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:57:32,644 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2019-11-25 08:57:32,645 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-11-25 08:57:32,646 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 30 transitions. [2019-11-25 08:57:32,646 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2019-11-25 08:57:32,646 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2019-11-25 08:57:32,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2019-11-25 08:57:32,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:57:32,647 INFO L688 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-25 08:57:32,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2019-11-25 08:57:32,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-25 08:57:32,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-25 08:57:32,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2019-11-25 08:57:32,649 INFO L711 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-25 08:57:32,649 INFO L591 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-25 08:57:32,650 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:57:32,650 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. [2019-11-25 08:57:32,650 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-11-25 08:57:32,650 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:32,651 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:32,651 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:57:32,651 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:57:32,652 INFO L794 eck$LassoCheckResult]: Stem: 439#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 438#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 426#L69 base2flt_#res := base2flt_~__retres4~0; 427#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 434#L19-1 assume !(0 == base2flt_~m % 4294967296); 437#L25-1 assume !(base2flt_~m % 4294967296 < 16777216); 431#L47-5 [2019-11-25 08:57:32,652 INFO L796 eck$LassoCheckResult]: Loop: 431#L47-5 assume !false; 421#L48-1 assume base2flt_~m % 4294967296 >= 33554432; 423#L49-1 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 431#L47-5 [2019-11-25 08:57:32,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:32,652 INFO L82 PathProgramCache]: Analyzing trace with hash 921737699, now seen corresponding path program 1 times [2019-11-25 08:57:32,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:32,653 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733003576] [2019-11-25 08:57:32,653 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:32,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:32,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:32,672 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:32,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:32,673 INFO L82 PathProgramCache]: Analyzing trace with hash 136178, now seen corresponding path program 1 times [2019-11-25 08:57:32,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:32,673 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143088395] [2019-11-25 08:57:32,674 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:32,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:32,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:32,685 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:32,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:32,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1761973968, now seen corresponding path program 1 times [2019-11-25 08:57:32,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:32,686 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234404418] [2019-11-25 08:57:32,687 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:32,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:32,710 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:32,730 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:57:32,730 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:57:32,731 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:57:32,731 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:57:32,731 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:57:32,731 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:32,731 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:57:32,731 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:57:32,731 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration2_Loop [2019-11-25 08:57:32,731 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:57:32,732 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:57:32,732 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:32,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:32,840 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:57:32,840 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:57:32,845 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:57:32,845 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 [2019-11-25 08:57:32,854 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:57:32,854 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=-1} Honda state: {ULTIMATE.start_base2flt_~m=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:57:32,874 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:57:32,874 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:32,894 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:57:32,894 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:57:32,903 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:57:32,905 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:57:32,905 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:57:32,905 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:57:32,906 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:57:32,906 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:57:32,906 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:32,906 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:57:32,906 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:57:32,906 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration2_Loop [2019-11-25 08:57:32,907 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:57:32,907 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:57:32,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:32,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:33,034 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:57:33,034 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:57:33,051 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:57:33,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:33,053 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:57:33,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:33,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:33,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:33,056 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:57:33,056 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:33,060 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:57:33,078 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:57:33,080 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:33,080 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:57:33,081 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:33,081 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:33,081 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:33,082 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:57:33,082 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 [2019-11-25 08:57:33,086 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:57:33,089 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-25 08:57:33,089 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:57:33,106 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:57:33,106 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:57:33,106 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:57:33,106 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-11-25 08:57:33,108 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:33,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:33,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:33,153 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:57:33,154 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:33,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:33,160 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:57:33,160 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:33,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:33,161 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 [2019-11-25 08:57:33,161 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 30 transitions. cyclomatic complexity: 11 Second operand 3 states. [2019-11-25 08:57:33,180 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. [2019-11-25 08:57:33,184 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 [2019-11-25 08:57:33,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:57:33,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2019-11-25 08:57:33,185 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-25 08:57:33,185 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:33,185 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-25 08:57:33,185 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:33,185 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 6 letters. [2019-11-25 08:57:33,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:33,186 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 50 transitions. [2019-11-25 08:57:33,187 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2019-11-25 08:57:33,187 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 37 states and 46 transitions. [2019-11-25 08:57:33,188 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2019-11-25 08:57:33,188 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2019-11-25 08:57:33,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 46 transitions. [2019-11-25 08:57:33,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:57:33,188 INFO L688 BuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2019-11-25 08:57:33,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 46 transitions. [2019-11-25 08:57:33,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 26. [2019-11-25 08:57:33,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-25 08:57:33,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2019-11-25 08:57:33,191 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-25 08:57:33,191 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-25 08:57:33,191 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-25 08:57:33,191 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2019-11-25 08:57:33,192 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-11-25 08:57:33,192 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:33,192 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:33,192 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:57:33,196 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:57:33,197 INFO L794 eck$LassoCheckResult]: Stem: 553#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 550#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 540#L69 base2flt_#res := base2flt_~__retres4~0; 541#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 546#L19-1 assume !(0 == base2flt_~m % 4294967296); 549#L25-1 assume base2flt_~m % 4294967296 < 16777216; 554#L37-3 [2019-11-25 08:57:33,197 INFO L796 eck$LassoCheckResult]: Loop: 554#L37-3 assume !false; 544#L28-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 545#L37-2 assume base2flt_~m % 4294967296 < 16777216; 554#L37-3 [2019-11-25 08:57:33,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:33,197 INFO L82 PathProgramCache]: Analyzing trace with hash 921737673, now seen corresponding path program 1 times [2019-11-25 08:57:33,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:33,198 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372246930] [2019-11-25 08:57:33,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:33,231 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:33,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:33,232 INFO L82 PathProgramCache]: Analyzing trace with hash 110419, now seen corresponding path program 1 times [2019-11-25 08:57:33,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:33,233 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959837359] [2019-11-25 08:57:33,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:33,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:33,258 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:33,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:33,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1761173643, now seen corresponding path program 1 times [2019-11-25 08:57:33,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:33,259 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932190290] [2019-11-25 08:57:33,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:33,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:33,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:33,280 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:33,301 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:57:33,301 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:57:33,301 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:57:33,301 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:57:33,301 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:57:33,302 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:33,302 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:57:33,302 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:57:33,302 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration3_Loop [2019-11-25 08:57:33,302 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:57:33,302 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:57:33,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:33,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:33,395 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:57:33,395 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:57:33,402 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:57:33,402 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 [2019-11-25 08:57:33,408 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:57:33,409 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=0} Honda state: {ULTIMATE.start_base2flt_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:57:33,418 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:57:33,418 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:57:33,446 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:57:33,446 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:33,461 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:57:33,463 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:57:33,463 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:57:33,464 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:57:33,464 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:57:33,464 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:57:33,464 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:33,464 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:57:33,464 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:57:33,464 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration3_Loop [2019-11-25 08:57:33,464 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:57:33,464 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:57:33,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:33,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:33,541 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:57:33,542 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:33,548 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:57:33,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:33,550 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:57:33,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:33,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:33,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:33,552 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:57:33,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:57:33,556 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:33,573 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:57:33,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:33,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:57:33,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:33,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:33,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:33,577 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:57:33,577 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:57:33,580 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:57:33,584 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-25 08:57:33,584 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:33,597 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:57:33,600 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:57:33,601 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:57:33,601 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2019-11-25 08:57:33,604 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-25 08:57:33,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:33,638 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:57:33,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:33,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:33,645 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:57:33,646 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:33,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:33,672 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-25 08:57:33,672 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 12 Second operand 4 states. [2019-11-25 08:57:33,686 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. [2019-11-25 08:57:33,687 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 [2019-11-25 08:57:33,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-25 08:57:33,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2019-11-25 08:57:33,688 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-25 08:57:33,688 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:33,688 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-25 08:57:33,688 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:33,688 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 6 letters. [2019-11-25 08:57:33,689 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:33,689 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 55 transitions. [2019-11-25 08:57:33,690 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-11-25 08:57:33,691 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 41 states and 51 transitions. [2019-11-25 08:57:33,691 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2019-11-25 08:57:33,691 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2019-11-25 08:57:33,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 51 transitions. [2019-11-25 08:57:33,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:57:33,692 INFO L688 BuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2019-11-25 08:57:33,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 51 transitions. [2019-11-25 08:57:33,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 29. [2019-11-25 08:57:33,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-25 08:57:33,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2019-11-25 08:57:33,695 INFO L711 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-11-25 08:57:33,695 INFO L591 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-11-25 08:57:33,695 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-25 08:57:33,695 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 38 transitions. [2019-11-25 08:57:33,696 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-25 08:57:33,696 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:33,696 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:33,697 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:33,697 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:57:33,697 INFO L794 eck$LassoCheckResult]: Stem: 672#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 669#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 656#L69 base2flt_#res := base2flt_~__retres4~0; 657#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 665#L19-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 660#L69-1 base2flt_#res := base2flt_~__retres4~0; 658#L70-1 main_#t~ret5 := base2flt_#res;main_~a~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 659#L19-2 assume !(0 == base2flt_~m % 4294967296); 666#L25-2 assume !(base2flt_~m % 4294967296 < 16777216); 648#L47-8 [2019-11-25 08:57:33,698 INFO L796 eck$LassoCheckResult]: Loop: 648#L47-8 assume !false; 667#L48-2 assume base2flt_~m % 4294967296 >= 33554432; 647#L49-2 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 648#L47-8 [2019-11-25 08:57:33,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:33,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951196, now seen corresponding path program 1 times [2019-11-25 08:57:33,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:33,699 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639016698] [2019-11-25 08:57:33,699 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:33,717 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:33,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:33,717 INFO L82 PathProgramCache]: Analyzing trace with hash 198737, now seen corresponding path program 1 times [2019-11-25 08:57:33,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:33,718 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783069545] [2019-11-25 08:57:33,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:33,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:33,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:33,740 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:33,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:33,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1766695638, now seen corresponding path program 1 times [2019-11-25 08:57:33,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:33,741 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504129906] [2019-11-25 08:57:33,742 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:33,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:33,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:33,781 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:33,808 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:57:33,808 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:57:33,808 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:57:33,809 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:57:33,809 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:57:33,809 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:33,809 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:57:33,809 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:57:33,809 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration4_Loop [2019-11-25 08:57:33,809 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:57:33,809 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:57:33,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:33,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:33,892 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:57:33,892 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:57:33,902 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:57:33,902 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 /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:57:33,926 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:57:33,926 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 [2019-11-25 08:57:33,933 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:57:33,936 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:57:33,936 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:57:33,936 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:57:33,936 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:57:33,936 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:57:33,936 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:33,937 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:57:33,937 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:57:33,937 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration4_Loop [2019-11-25 08:57:33,937 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:57:33,937 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:57:33,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:33,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:34,043 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:57:34,043 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:34,087 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:57:34,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:34,089 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:57:34,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:34,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:34,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:34,091 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:57:34,091 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:57:34,093 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:57:34,096 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-25 08:57:34,096 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:57:34,101 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:57:34,101 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:57:34,102 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:57:34,102 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:34,109 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-25 08:57:34,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:34,152 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:57:34,153 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:34,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:34,158 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:57:34,158 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:34,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:34,159 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 [2019-11-25 08:57:34,159 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 13 Second operand 3 states. [2019-11-25 08:57:34,164 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. [2019-11-25 08:57:34,164 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 [2019-11-25 08:57:34,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:57:34,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2019-11-25 08:57:34,165 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-25 08:57:34,165 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:34,165 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 12 letters. Loop has 3 letters. [2019-11-25 08:57:34,165 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:34,165 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 6 letters. [2019-11-25 08:57:34,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:34,166 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2019-11-25 08:57:34,166 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-25 08:57:34,167 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 34 transitions. [2019-11-25 08:57:34,167 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-11-25 08:57:34,167 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-11-25 08:57:34,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 34 transitions. [2019-11-25 08:57:34,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:57:34,168 INFO L688 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-25 08:57:34,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 34 transitions. [2019-11-25 08:57:34,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-11-25 08:57:34,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-25 08:57:34,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2019-11-25 08:57:34,169 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-25 08:57:34,170 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-25 08:57:34,170 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-25 08:57:34,170 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2019-11-25 08:57:34,170 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-25 08:57:34,170 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:34,170 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:34,171 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:34,171 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:57:34,171 INFO L794 eck$LassoCheckResult]: Stem: 784#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 782#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 770#L69 base2flt_#res := base2flt_~__retres4~0; 771#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 779#L19-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 774#L69-1 base2flt_#res := base2flt_~__retres4~0; 772#L70-1 main_#t~ret5 := base2flt_#res;main_~a~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 773#L19-2 assume !(0 == base2flt_~m % 4294967296); 780#L25-2 assume base2flt_~m % 4294967296 < 16777216; 785#L37-5 [2019-11-25 08:57:34,171 INFO L796 eck$LassoCheckResult]: Loop: 785#L37-5 assume !false; 768#L28-2 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 769#L37-4 assume base2flt_~m % 4294967296 < 16777216; 785#L37-5 [2019-11-25 08:57:34,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:34,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951170, now seen corresponding path program 1 times [2019-11-25 08:57:34,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:34,172 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651689005] [2019-11-25 08:57:34,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:34,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:34,193 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:34,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:34,194 INFO L82 PathProgramCache]: Analyzing trace with hash 172978, now seen corresponding path program 1 times [2019-11-25 08:57:34,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:34,194 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608678957] [2019-11-25 08:57:34,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:34,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:34,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:34,199 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:34,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:34,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1765895313, now seen corresponding path program 1 times [2019-11-25 08:57:34,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:34,200 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349905225] [2019-11-25 08:57:34,200 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:34,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:34,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:34,230 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:34,255 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:57:34,255 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:57:34,255 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:57:34,255 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:57:34,256 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:57:34,256 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:34,256 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:57:34,256 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:57:34,256 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration5_Loop [2019-11-25 08:57:34,256 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:57:34,256 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:57:34,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:34,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:34,328 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:57:34,328 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:34,341 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:57:34,344 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:34,366 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:57:34,366 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:57:34,373 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:57:34,375 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:57:34,375 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:57:34,375 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:57:34,375 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:57:34,375 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:57:34,375 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:34,376 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:57:34,376 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:57:34,376 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration5_Loop [2019-11-25 08:57:34,376 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:57:34,376 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:57:34,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:34,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:34,444 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:57:34,444 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:57:34,453 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:57:34,454 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:34,455 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:57:34,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:34,455 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:34,455 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:34,456 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:57:34,456 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:34,459 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:57:34,463 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-25 08:57:34,463 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78e2785f-2d86-40fa-9840-aa7b9a9cffd3/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:57:34,468 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:57:34,468 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:57:34,468 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:57:34,468 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2019-11-25 08:57:34,470 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 [2019-11-25 08:57:34,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:34,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:34,499 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:57:34,500 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:34,506 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:57:34,506 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:34,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:34,526 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-25 08:57:34,526 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-11-25 08:57:34,535 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. [2019-11-25 08:57:34,537 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 [2019-11-25 08:57:34,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-25 08:57:34,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2019-11-25 08:57:34,537 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-25 08:57:34,538 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:34,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 12 letters. Loop has 3 letters. [2019-11-25 08:57:34,538 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:34,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 6 letters. [2019-11-25 08:57:34,538 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:34,539 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 38 transitions. [2019-11-25 08:57:34,539 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:57:34,539 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2019-11-25 08:57:34,539 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:57:34,539 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:57:34,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:57:34,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:57:34,540 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:57:34,540 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:57:34,540 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:57:34,540 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-25 08:57:34,540 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:57:34,540 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:57:34,540 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-25 08:57:34,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:57:34 BoogieIcfgContainer [2019-11-25 08:57:34,548 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:57:34,549 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:57:34,549 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:57:34,549 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:57:34,550 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:31" (3/4) ... [2019-11-25 08:57:34,552 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:57:34,552 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:57:34,555 INFO L168 Benchmark]: Toolchain (without parser) took 4006.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 219.2 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -165.7 MB). Peak memory consumption was 53.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:34,555 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:57:34,556 INFO L168 Benchmark]: CACSL2BoogieTranslator took 462.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -163.0 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:34,556 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.46 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:34,557 INFO L168 Benchmark]: Boogie Preprocessor took 41.33 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. [2019-11-25 08:57:34,557 INFO L168 Benchmark]: RCFGBuilder took 502.67 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: 38.2 MB). Peak memory consumption was 38.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:34,558 INFO L168 Benchmark]: BuchiAutomizer took 2923.03 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 97.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -48.1 MB). Peak memory consumption was 48.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:34,559 INFO L168 Benchmark]: Witness Printer took 3.84 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. [2019-11-25 08:57:34,562 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 462.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -163.0 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 69.46 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.33 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 502.67 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: 38.2 MB). Peak memory consumption was 38.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2923.03 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 97.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -48.1 MB). Peak memory consumption was 48.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.84 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 2.8s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 34 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 29 states and ocurred in iteration 3. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 253 SDtfs, 221 SDslu, 26 SDs, 0 SdLazy, 38 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf95 lsp57 ukn100 mio100 lsp100 div583 bol100 ite100 ukn100 eq132 hnf44 smp92 dnf100 smp100 tf105 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 31ms 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...