./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/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 8bbbd483a09fdeea97ffdf681e0639d6c4265da0 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 10:07:34,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:07:34,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:07:34,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:07:34,487 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:07:34,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:07:34,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:07:34,490 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:07:34,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:07:34,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:07:34,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:07:34,493 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:07:34,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:07:34,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:07:34,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:07:34,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:07:34,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:07:34,497 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:07:34,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:07:34,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:07:34,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:07:34,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:07:34,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:07:34,503 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:07:34,505 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:07:34,505 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:07:34,506 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:07:34,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:07:34,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:07:34,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:07:34,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:07:34,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:07:34,508 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:07:34,508 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:07:34,509 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:07:34,509 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:07:34,510 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:07:34,510 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:07:34,510 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:07:34,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:07:34,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:07:34,511 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 10:07:34,523 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:07:34,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:07:34,523 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:07:34,524 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:07:34,524 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 10:07:34,524 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 10:07:34,524 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 10:07:34,524 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 10:07:34,524 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 10:07:34,524 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 10:07:34,524 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 10:07:34,524 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:07:34,525 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:07:34,525 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 10:07:34,525 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:07:34,525 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:07:34,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:07:34,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 10:07:34,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 10:07:34,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 10:07:34,525 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:07:34,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:07:34,526 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 10:07:34,526 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:07:34,526 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 10:07:34,526 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:07:34,526 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:07:34,526 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 10:07:34,527 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:07:34,527 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 10:07:34,527 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:07:34,527 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 10:07:34,527 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 10:07:34,528 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_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/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 -> 8bbbd483a09fdeea97ffdf681e0639d6c4265da0 [2019-12-07 10:07:34,631 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:07:34,639 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:07:34,641 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:07:34,642 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:07:34,642 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:07:34,643 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c [2019-12-07 10:07:34,681 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/data/a44727a06/f5eb2d1ab0274970b43d6a8162567836/FLAG021f15a8a [2019-12-07 10:07:35,151 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:07:35,151 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c [2019-12-07 10:07:35,156 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/data/a44727a06/f5eb2d1ab0274970b43d6a8162567836/FLAG021f15a8a [2019-12-07 10:07:35,168 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/data/a44727a06/f5eb2d1ab0274970b43d6a8162567836 [2019-12-07 10:07:35,171 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:07:35,172 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:07:35,173 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:07:35,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:07:35,176 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:07:35,177 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:07:35" (1/1) ... [2019-12-07 10:07:35,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39660cba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:35, skipping insertion in model container [2019-12-07 10:07:35,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:07:35" (1/1) ... [2019-12-07 10:07:35,183 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:07:35,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:07:35,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:07:35,380 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:07:35,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:07:35,418 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:07:35,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:35 WrapperNode [2019-12-07 10:07:35,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:07:35,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:07:35,419 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:07:35,419 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:07:35,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:35" (1/1) ... [2019-12-07 10:07:35,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:35" (1/1) ... [2019-12-07 10:07:35,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:07:35,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:07:35,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:07:35,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:07:35,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:35" (1/1) ... [2019-12-07 10:07:35,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:35" (1/1) ... [2019-12-07 10:07:35,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:35" (1/1) ... [2019-12-07 10:07:35,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:35" (1/1) ... [2019-12-07 10:07:35,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:35" (1/1) ... [2019-12-07 10:07:35,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:35" (1/1) ... [2019-12-07 10:07:35,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:35" (1/1) ... [2019-12-07 10:07:35,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:07:35,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:07:35,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:07:35,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:07:35,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:35,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:07:35,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:07:35,781 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:07:35,781 INFO L287 CfgBuilder]: Removed 28 assume(true) statements. [2019-12-07 10:07:35,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:35 BoogieIcfgContainer [2019-12-07 10:07:35,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:07:35,782 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 10:07:35,783 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 10:07:35,785 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 10:07:35,785 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:07:35,785 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 10:07:35" (1/3) ... [2019-12-07 10:07:35,786 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21200e5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 10:07:35, skipping insertion in model container [2019-12-07 10:07:35,786 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:07:35,786 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:35" (2/3) ... [2019-12-07 10:07:35,786 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21200e5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 10:07:35, skipping insertion in model container [2019-12-07 10:07:35,786 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:07:35,786 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:35" (3/3) ... [2019-12-07 10:07:35,787 INFO L371 chiAutomizerObserver]: Analyzing ICFG soft_float_1-2a.c.cil.c [2019-12-07 10:07:35,815 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 10:07:35,815 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 10:07:35,815 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 10:07:35,815 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:07:35,815 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:07:35,815 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 10:07:35,815 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:07:35,815 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 10:07:35,826 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2019-12-07 10:07:35,843 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2019-12-07 10:07:35,843 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:07:35,843 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:07:35,847 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 10:07:35,848 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 10:07:35,848 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 10:07:35,848 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2019-12-07 10:07:35,852 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2019-12-07 10:07:35,852 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:07:35,852 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:07:35,852 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 10:07:35,852 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 10:07:35,857 INFO L794 eck$LassoCheckResult]: Stem: 40#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet1;havoc main_#t~nondet1;main_~ea~2 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~b~0;main_~mb~2 := main_#t~nondet3;havoc main_#t~nondet3;main_~eb~2 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 65#L20true assume !(0 == base2flt_~m % 4294967296); 26#L26true assume !(base2flt_~m % 4294967296 < 16777216); 46#L48-2true [2019-12-07 10:07:35,857 INFO L796 eck$LassoCheckResult]: Loop: 46#L48-2true assume !false; 59#L49true assume base2flt_~m % 4294967296 >= 33554432; 79#L50true assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 46#L48-2true [2019-12-07 10:07:35,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:35,861 INFO L82 PathProgramCache]: Analyzing trace with hash 30973, now seen corresponding path program 1 times [2019-12-07 10:07:35,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:35,867 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270626734] [2019-12-07 10:07:35,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:35,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:35,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:07:35,965 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270626734] [2019-12-07 10:07:35,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:35,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 10:07:35,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879500829] [2019-12-07 10:07:35,970 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 10:07:35,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:35,970 INFO L82 PathProgramCache]: Analyzing trace with hash 73619, now seen corresponding path program 1 times [2019-12-07 10:07:35,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:35,970 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898287738] [2019-12-07 10:07:35,970 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:35,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:35,993 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:07:36,020 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:07:36,020 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:07:36,021 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:07:36,021 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:07:36,021 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 10:07:36,021 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:36,021 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:07:36,021 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:07:36,021 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration1_Loop [2019-12-07 10:07:36,022 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:07:36,022 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:07:36,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:07:36,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:07:36,119 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:07:36,120 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:36,124 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 10:07:36,124 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:36,131 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 10:07:36,132 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 10:07:36,138 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 10:07:36,138 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:07:36,139 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:07:36,139 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:07:36,139 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:07:36,139 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 10:07:36,139 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:36,139 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:07:36,139 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:07:36,139 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration1_Loop [2019-12-07 10:07:36,139 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:07:36,139 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:07:36,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:07:36,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:07:36,198 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:07:36,201 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:36,205 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:07:36,207 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:07:36,207 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:07:36,207 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:07:36,208 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:07:36,208 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:07:36,210 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:07:36,210 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:07:36,212 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 10:07:36,216 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 10:07:36,217 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_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:36,221 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 10:07:36,221 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 10:07:36,222 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 10:07:36,222 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-12-07 10:07:36,225 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 10:07:36,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:36,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:36,251 INFO L264 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:07:36,252 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:07:36,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:36,259 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:07:36,259 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:07:36,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:07:36,271 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-12-07 10:07:36,271 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 86 states. Second operand 3 states. [2019-12-07 10:07:36,320 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 86 states.. Second operand 3 states. Result 254 states and 411 transitions. Complement of second has 6 states. [2019-12-07 10:07:36,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 10:07:36,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 10:07:36,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 269 transitions. [2019-12-07 10:07:36,324 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 269 transitions. Stem has 3 letters. Loop has 3 letters. [2019-12-07 10:07:36,325 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:07:36,325 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 269 transitions. Stem has 6 letters. Loop has 3 letters. [2019-12-07 10:07:36,325 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:07:36,325 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 269 transitions. Stem has 3 letters. Loop has 6 letters. [2019-12-07 10:07:36,325 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:07:36,326 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 254 states and 411 transitions. [2019-12-07 10:07:36,332 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2019-12-07 10:07:36,336 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 254 states to 56 states and 81 transitions. [2019-12-07 10:07:36,337 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2019-12-07 10:07:36,338 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2019-12-07 10:07:36,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 81 transitions. [2019-12-07 10:07:36,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 10:07:36,338 INFO L688 BuchiCegarLoop]: Abstraction has 56 states and 81 transitions. [2019-12-07 10:07:36,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 81 transitions. [2019-12-07 10:07:36,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 45. [2019-12-07 10:07:36,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-12-07 10:07:36,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 69 transitions. [2019-12-07 10:07:36,359 INFO L711 BuchiCegarLoop]: Abstraction has 45 states and 69 transitions. [2019-12-07 10:07:36,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:36,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 10:07:36,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:07:36,361 INFO L87 Difference]: Start difference. First operand 45 states and 69 transitions. Second operand 3 states. [2019-12-07 10:07:36,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:36,388 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2019-12-07 10:07:36,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:07:36,388 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2019-12-07 10:07:36,389 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-12-07 10:07:36,390 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 30 transitions. [2019-12-07 10:07:36,390 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2019-12-07 10:07:36,390 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2019-12-07 10:07:36,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2019-12-07 10:07:36,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 10:07:36,391 INFO L688 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-12-07 10:07:36,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2019-12-07 10:07:36,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-12-07 10:07:36,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-12-07 10:07:36,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2019-12-07 10:07:36,393 INFO L711 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-12-07 10:07:36,393 INFO L591 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-12-07 10:07:36,393 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 10:07:36,393 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. [2019-12-07 10:07:36,394 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-12-07 10:07:36,394 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:07:36,394 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:07:36,394 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 10:07:36,394 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 10:07:36,395 INFO L794 eck$LassoCheckResult]: Stem: 469#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet1;havoc main_#t~nondet1;main_~ea~2 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~b~0;main_~mb~2 := main_#t~nondet3;havoc main_#t~nondet3;main_~eb~2 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 468#L20 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 459#L70 base2flt_#res := base2flt_~__retres4~0; 460#L71 main_#t~ret5 := base2flt_#res;main_~zero~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 465#L20-1 assume !(0 == base2flt_~m % 4294967296); 467#L26-1 assume !(base2flt_~m % 4294967296 < 16777216); 462#L48-5 [2019-12-07 10:07:36,395 INFO L796 eck$LassoCheckResult]: Loop: 462#L48-5 assume !false; 453#L49-1 assume base2flt_~m % 4294967296 >= 33554432; 455#L50-1 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 462#L48-5 [2019-12-07 10:07:36,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:36,395 INFO L82 PathProgramCache]: Analyzing trace with hash 921737699, now seen corresponding path program 1 times [2019-12-07 10:07:36,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:36,395 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512113603] [2019-12-07 10:07:36,396 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:36,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:36,414 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:07:36,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:36,415 INFO L82 PathProgramCache]: Analyzing trace with hash 136178, now seen corresponding path program 1 times [2019-12-07 10:07:36,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:36,415 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273810472] [2019-12-07 10:07:36,415 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:36,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:36,427 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:07:36,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:36,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1761973968, now seen corresponding path program 1 times [2019-12-07 10:07:36,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:36,428 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081565302] [2019-12-07 10:07:36,428 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:36,448 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:07:36,465 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:07:36,465 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:07:36,465 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:07:36,465 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:07:36,465 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 10:07:36,465 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:36,465 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:07:36,466 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:07:36,466 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration2_Loop [2019-12-07 10:07:36,466 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:07:36,466 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:07:36,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:07:36,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:07:36,526 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:07:36,527 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:36,530 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 10:07:36,530 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 10:07:36,537 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 10:07:36,537 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_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:36,541 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 10:07:36,541 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:36,547 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 10:07:36,547 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 10:07:36,555 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 10:07:36,556 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:07:36,556 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:07:36,557 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:07:36,557 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:07:36,557 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 10:07:36,557 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:36,557 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:07:36,557 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:07:36,557 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration2_Loop [2019-12-07 10:07:36,557 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:07:36,558 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:07:36,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:07:36,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:07:36,633 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:07:36,633 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:36,636 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:07:36,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:07:36,637 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:07:36,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:07:36,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:07:36,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:07:36,639 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:07:36,639 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:07:36,641 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:36,644 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:07:36,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:07:36,646 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:07:36,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:07:36,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:07:36,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:07:36,647 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:07:36,647 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:07:36,649 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 10:07:36,653 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 10:07:36,653 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_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:36,655 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 10:07:36,655 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 10:07:36,656 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 10:07:36,656 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-12-07 10:07:36,657 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 10:07:36,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:36,682 INFO L264 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:07:36,683 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:07:36,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:36,687 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:07:36,687 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:07:36,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:07:36,688 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-12-07 10:07:36,688 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 30 transitions. cyclomatic complexity: 11 Second operand 3 states. [2019-12-07 10:07:36,700 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 30 transitions. cyclomatic complexity: 11. Second operand 3 states. Result 40 states and 50 transitions. Complement of second has 5 states. [2019-12-07 10:07:36,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 10:07:36,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 10:07:36,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2019-12-07 10:07:36,701 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 3 letters. [2019-12-07 10:07:36,701 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:07:36,702 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 9 letters. Loop has 3 letters. [2019-12-07 10:07:36,702 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:07:36,702 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 6 letters. [2019-12-07 10:07:36,702 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:07:36,702 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 50 transitions. [2019-12-07 10:07:36,703 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2019-12-07 10:07:36,703 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 37 states and 46 transitions. [2019-12-07 10:07:36,704 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2019-12-07 10:07:36,704 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2019-12-07 10:07:36,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 46 transitions. [2019-12-07 10:07:36,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 10:07:36,704 INFO L688 BuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2019-12-07 10:07:36,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 46 transitions. [2019-12-07 10:07:36,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 26. [2019-12-07 10:07:36,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-07 10:07:36,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2019-12-07 10:07:36,707 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-12-07 10:07:36,707 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-12-07 10:07:36,707 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 10:07:36,707 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2019-12-07 10:07:36,708 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-12-07 10:07:36,708 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:07:36,708 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:07:36,708 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 10:07:36,708 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 10:07:36,709 INFO L794 eck$LassoCheckResult]: Stem: 581#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet1;havoc main_#t~nondet1;main_~ea~2 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~b~0;main_~mb~2 := main_#t~nondet3;havoc main_#t~nondet3;main_~eb~2 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 580#L20 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 571#L70 base2flt_#res := base2flt_~__retres4~0; 572#L71 main_#t~ret5 := base2flt_#res;main_~zero~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 577#L20-1 assume !(0 == base2flt_~m % 4294967296); 579#L26-1 assume base2flt_~m % 4294967296 < 16777216; 584#L38-3 [2019-12-07 10:07:36,709 INFO L796 eck$LassoCheckResult]: Loop: 584#L38-3 assume !false; 575#L29-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 576#L38-2 assume base2flt_~m % 4294967296 < 16777216; 584#L38-3 [2019-12-07 10:07:36,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:36,709 INFO L82 PathProgramCache]: Analyzing trace with hash 921737673, now seen corresponding path program 1 times [2019-12-07 10:07:36,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:36,710 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274215723] [2019-12-07 10:07:36,710 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:36,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:36,723 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:07:36,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:36,724 INFO L82 PathProgramCache]: Analyzing trace with hash 110419, now seen corresponding path program 1 times [2019-12-07 10:07:36,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:36,724 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193205540] [2019-12-07 10:07:36,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:36,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:36,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:36,731 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:07:36,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:36,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1761173643, now seen corresponding path program 1 times [2019-12-07 10:07:36,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:36,732 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354405440] [2019-12-07 10:07:36,732 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:36,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:36,754 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:07:36,769 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:07:36,769 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:07:36,770 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:07:36,770 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:07:36,770 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 10:07:36,770 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:36,770 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:07:36,770 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:07:36,770 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration3_Loop [2019-12-07 10:07:36,770 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:07:36,770 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:07:36,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:07:36,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:07:36,825 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:07:36,825 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:36,828 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 10:07:36,828 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 10:07:36,832 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 10:07:36,833 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_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:36,836 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 10:07:36,836 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:36,842 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 10:07:36,842 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 10:07:36,849 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 10:07:36,850 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:07:36,850 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:07:36,850 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:07:36,850 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:07:36,850 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 10:07:36,850 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:36,850 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:07:36,851 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:07:36,851 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration3_Loop [2019-12-07 10:07:36,851 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:07:36,851 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:07:36,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:07:36,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:07:36,921 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:07:36,922 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:36,933 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:07:36,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:07:36,934 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:07:36,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:07:36,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:07:36,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:07:36,936 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:07:36,936 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:07:36,938 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:36,943 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:07:36,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:07:36,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:07:36,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:07:36,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:07:36,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:07:36,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:07:36,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:07:36,947 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 10:07:36,949 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 10:07:36,949 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_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:36,952 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 10:07:36,953 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 10:07:36,953 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 10:07:36,953 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2019-12-07 10:07:36,956 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 10:07:36,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:36,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:36,974 INFO L264 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:07:36,974 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:07:36,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:36,977 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:07:36,977 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:07:36,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:07:36,992 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 10:07:36,992 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 12 Second operand 4 states. [2019-12-07 10:07:36,999 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 12. Second operand 4 states. Result 44 states and 55 transitions. Complement of second has 5 states. [2019-12-07 10:07:36,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 10:07:36,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 10:07:36,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2019-12-07 10:07:37,000 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 3 letters. [2019-12-07 10:07:37,000 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:07:37,000 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 9 letters. Loop has 3 letters. [2019-12-07 10:07:37,000 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:07:37,000 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 6 letters. [2019-12-07 10:07:37,000 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:07:37,000 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 55 transitions. [2019-12-07 10:07:37,001 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-12-07 10:07:37,001 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 41 states and 51 transitions. [2019-12-07 10:07:37,001 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2019-12-07 10:07:37,002 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2019-12-07 10:07:37,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 51 transitions. [2019-12-07 10:07:37,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 10:07:37,002 INFO L688 BuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2019-12-07 10:07:37,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 51 transitions. [2019-12-07 10:07:37,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 29. [2019-12-07 10:07:37,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-07 10:07:37,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2019-12-07 10:07:37,004 INFO L711 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-12-07 10:07:37,004 INFO L591 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-12-07 10:07:37,004 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 10:07:37,004 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 38 transitions. [2019-12-07 10:07:37,004 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-12-07 10:07:37,004 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:07:37,004 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:07:37,005 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:07:37,005 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 10:07:37,005 INFO L794 eck$LassoCheckResult]: Stem: 700#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet1;havoc main_#t~nondet1;main_~ea~2 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~b~0;main_~mb~2 := main_#t~nondet3;havoc main_#t~nondet3;main_~eb~2 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 699#L20 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 690#L70 base2flt_#res := base2flt_~__retres4~0; 691#L71 main_#t~ret5 := base2flt_#res;main_~zero~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 696#L20-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 679#L70-1 base2flt_#res := base2flt_~__retres4~0; 680#L71-1 main_#t~ret6 := base2flt_#res;main_~a~0 := main_#t~ret6;havoc main_#t~ret6;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 689#L20-2 assume !(0 == base2flt_~m % 4294967296); 697#L26-2 assume !(base2flt_~m % 4294967296 < 16777216); 686#L48-8 [2019-12-07 10:07:37,005 INFO L796 eck$LassoCheckResult]: Loop: 686#L48-8 assume !false; 677#L49-2 assume base2flt_~m % 4294967296 >= 33554432; 678#L50-2 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 686#L48-8 [2019-12-07 10:07:37,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:37,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951196, now seen corresponding path program 1 times [2019-12-07 10:07:37,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:37,006 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824190025] [2019-12-07 10:07:37,006 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:37,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:37,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:37,017 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:07:37,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:37,018 INFO L82 PathProgramCache]: Analyzing trace with hash 198737, now seen corresponding path program 1 times [2019-12-07 10:07:37,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:37,018 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530195392] [2019-12-07 10:07:37,018 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:37,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:37,024 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:07:37,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:37,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1766695638, now seen corresponding path program 1 times [2019-12-07 10:07:37,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:37,025 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370939146] [2019-12-07 10:07:37,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:37,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:37,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:37,040 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:07:37,054 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:07:37,054 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:07:37,054 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:07:37,054 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:07:37,054 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 10:07:37,054 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:37,054 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:07:37,054 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:07:37,054 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration4_Loop [2019-12-07 10:07:37,054 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:07:37,054 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:07:37,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:07:37,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:07:37,107 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:07:37,107 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:37,110 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 10:07:37,110 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:37,117 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 10:07:37,117 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 10:07:37,123 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 10:07:37,125 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:07:37,125 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:07:37,125 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:07:37,125 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:07:37,125 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 10:07:37,125 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:37,125 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:07:37,125 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:07:37,125 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration4_Loop [2019-12-07 10:07:37,125 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:07:37,125 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:07:37,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:07:37,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:07:37,174 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:07:37,175 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:37,177 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:07:37,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:07:37,178 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:07:37,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:07:37,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:07:37,179 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:07:37,179 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:07:37,179 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:07:37,181 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 10:07:37,182 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 10:07:37,183 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_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:37,185 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 10:07:37,186 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 10:07:37,186 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 10:07:37,186 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-12-07 10:07:37,188 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 10:07:37,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:37,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:37,208 INFO L264 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:07:37,209 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:07:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:37,213 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:07:37,213 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:07:37,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:07:37,214 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-12-07 10:07:37,214 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 13 Second operand 3 states. [2019-12-07 10:07:37,218 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 13. Second operand 3 states. Result 32 states and 42 transitions. Complement of second has 4 states. [2019-12-07 10:07:37,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 10:07:37,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 10:07:37,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2019-12-07 10:07:37,219 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 3 letters. [2019-12-07 10:07:37,219 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:07:37,219 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 12 letters. Loop has 3 letters. [2019-12-07 10:07:37,219 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:07:37,220 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 6 letters. [2019-12-07 10:07:37,220 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:07:37,220 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2019-12-07 10:07:37,220 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 10:07:37,221 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 34 transitions. [2019-12-07 10:07:37,221 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-12-07 10:07:37,221 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-12-07 10:07:37,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 34 transitions. [2019-12-07 10:07:37,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 10:07:37,221 INFO L688 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-12-07 10:07:37,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 34 transitions. [2019-12-07 10:07:37,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-12-07 10:07:37,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-07 10:07:37,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2019-12-07 10:07:37,223 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-12-07 10:07:37,223 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-12-07 10:07:37,223 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 10:07:37,223 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2019-12-07 10:07:37,224 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 10:07:37,224 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:07:37,224 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:07:37,224 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:07:37,224 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 10:07:37,225 INFO L794 eck$LassoCheckResult]: Stem: 813#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet1;havoc main_#t~nondet1;main_~ea~2 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~b~0;main_~mb~2 := main_#t~nondet3;havoc main_#t~nondet3;main_~eb~2 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 812#L20 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 802#L70 base2flt_#res := base2flt_~__retres4~0; 803#L71 main_#t~ret5 := base2flt_#res;main_~zero~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 809#L20-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 793#L70-1 base2flt_#res := base2flt_~__retres4~0; 794#L71-1 main_#t~ret6 := base2flt_#res;main_~a~0 := main_#t~ret6;havoc main_#t~ret6;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 804#L20-2 assume !(0 == base2flt_~m % 4294967296); 810#L26-2 assume base2flt_~m % 4294967296 < 16777216; 815#L38-5 [2019-12-07 10:07:37,225 INFO L796 eck$LassoCheckResult]: Loop: 815#L38-5 assume !false; 800#L29-2 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 801#L38-4 assume base2flt_~m % 4294967296 < 16777216; 815#L38-5 [2019-12-07 10:07:37,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:37,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951170, now seen corresponding path program 1 times [2019-12-07 10:07:37,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:37,225 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919106904] [2019-12-07 10:07:37,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:37,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:37,239 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:07:37,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:37,240 INFO L82 PathProgramCache]: Analyzing trace with hash 172978, now seen corresponding path program 1 times [2019-12-07 10:07:37,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:37,240 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957585061] [2019-12-07 10:07:37,240 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:37,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:37,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:37,245 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:07:37,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:37,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1765895313, now seen corresponding path program 1 times [2019-12-07 10:07:37,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:37,245 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778961586] [2019-12-07 10:07:37,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:37,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:37,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:37,263 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:07:37,277 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:07:37,277 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:07:37,277 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:07:37,277 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:07:37,277 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 10:07:37,277 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:37,277 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:07:37,277 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:07:37,277 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration5_Loop [2019-12-07 10:07:37,278 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:07:37,278 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:07:37,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:07:37,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:07:37,320 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:07:37,321 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:37,323 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 10:07:37,323 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:37,330 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 10:07:37,330 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 10:07:37,335 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 10:07:37,336 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:07:37,336 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:07:37,337 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:07:37,337 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:07:37,337 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 10:07:37,337 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:37,337 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:07:37,337 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:07:37,337 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration5_Loop [2019-12-07 10:07:37,337 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:07:37,337 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:07:37,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:07:37,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:07:37,376 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:07:37,376 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:37,379 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:07:37,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:07:37,381 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:07:37,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:07:37,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:07:37,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:07:37,381 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:07:37,381 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:07:37,383 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 10:07:37,385 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 10:07:37,385 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_7bd8b6bd-9435-4ca5-aa44-0d365671a5d2/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:07:37,388 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 10:07:37,388 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 10:07:37,388 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 10:07:37,388 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2019-12-07 10:07:37,390 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 10:07:37,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:37,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:37,404 INFO L264 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:07:37,405 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:07:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:37,408 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:07:37,408 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:07:37,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:07:37,418 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 10:07:37,418 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-12-07 10:07:37,422 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 30 states and 38 transitions. Complement of second has 4 states. [2019-12-07 10:07:37,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 10:07:37,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 10:07:37,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2019-12-07 10:07:37,423 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 3 letters. [2019-12-07 10:07:37,423 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:07:37,423 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 12 letters. Loop has 3 letters. [2019-12-07 10:07:37,423 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:07:37,424 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 6 letters. [2019-12-07 10:07:37,424 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:07:37,424 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 38 transitions. [2019-12-07 10:07:37,424 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 10:07:37,425 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2019-12-07 10:07:37,425 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 10:07:37,425 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 10:07:37,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 10:07:37,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 10:07:37,425 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:07:37,425 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:07:37,425 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:07:37,425 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-12-07 10:07:37,425 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 10:07:37,425 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 10:07:37,426 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 10:07:37,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 10:07:37 BoogieIcfgContainer [2019-12-07 10:07:37,430 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 10:07:37,430 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:07:37,430 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:07:37,430 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:07:37,431 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:35" (3/4) ... [2019-12-07 10:07:37,433 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 10:07:37,433 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:07:37,435 INFO L168 Benchmark]: Toolchain (without parser) took 2262.23 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.4 MB). Free memory was 944.7 MB in the beginning and 949.1 MB in the end (delta: -4.4 MB). Peak memory consumption was 90.0 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:37,435 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:07:37,435 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -144.4 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:37,436 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.60 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:37,436 INFO L168 Benchmark]: Boogie Preprocessor took 23.72 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:07:37,437 INFO L168 Benchmark]: RCFGBuilder took 309.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 40.0 MB). Peak memory consumption was 40.0 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:37,437 INFO L168 Benchmark]: BuchiAutomizer took 1647.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 949.1 MB in the end (delta: 94.7 MB). Peak memory consumption was 94.7 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:37,437 INFO L168 Benchmark]: Witness Printer took 3.00 ms. Allocated memory is still 1.1 GB. Free memory is still 949.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:07:37,440 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 245.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -144.4 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.60 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.72 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 309.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 40.0 MB). Peak memory consumption was 40.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1647.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 949.1 MB in the end (delta: 94.7 MB). Peak memory consumption was 94.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.00 ms. Allocated memory is still 1.1 GB. Free memory is still 949.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (1 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * e + 253 and consists of 4 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 34 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 29 states and ocurred in iteration 3. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 272 SDtfs, 240 SDslu, 26 SDs, 0 SdLazy, 38 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf95 lsp57 ukn100 mio100 lsp100 div583 bol100 ite100 ukn100 eq132 hnf44 smp92 dnf100 smp100 tf105 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 19ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...