./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ebd576d3-1e94-43e6-89f7-b28752c23dc6/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ebd576d3-1e94-43e6-89f7-b28752c23dc6/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ebd576d3-1e94-43e6-89f7-b28752c23dc6/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ebd576d3-1e94-43e6-89f7-b28752c23dc6/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ebd576d3-1e94-43e6-89f7-b28752c23dc6/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ebd576d3-1e94-43e6-89f7-b28752c23dc6/bin-2019/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 ee05cb2d66f71fb2277986b04bb223cfc634fed1 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 11:38:43,501 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:38:43,501 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:38:43,508 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:38:43,508 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:38:43,509 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:38:43,510 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:38:43,511 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:38:43,512 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:38:43,512 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:38:43,513 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:38:43,513 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:38:43,514 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:38:43,514 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:38:43,515 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:38:43,515 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:38:43,516 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:38:43,517 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:38:43,518 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:38:43,519 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:38:43,520 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:38:43,521 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:38:43,522 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:38:43,523 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:38:43,523 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:38:43,523 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:38:43,524 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:38:43,524 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:38:43,525 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:38:43,526 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:38:43,526 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:38:43,526 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:38:43,526 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:38:43,527 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:38:43,527 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:38:43,527 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:38:43,528 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ebd576d3-1e94-43e6-89f7-b28752c23dc6/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 11:38:43,535 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:38:43,535 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:38:43,536 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:38:43,536 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:38:43,536 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:38:43,536 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 11:38:43,537 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 11:38:43,537 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 11:38:43,537 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 11:38:43,537 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 11:38:43,537 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 11:38:43,537 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:38:43,537 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 11:38:43,538 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 11:38:43,538 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 11:38:43,538 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 11:38:43,538 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:38:43,538 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 11:38:43,538 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 11:38:43,538 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 11:38:43,539 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 11:38:43,539 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 11:38:43,539 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 11:38:43,539 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:38:43,539 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 11:38:43,539 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:38:43,540 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:38:43,540 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 11:38:43,541 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:38:43,541 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 11:38:43,541 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 11:38:43,542 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 11:38:43,542 INFO L133 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/working_dir_ebd576d3-1e94-43e6-89f7-b28752c23dc6/bin-2019/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 -> ee05cb2d66f71fb2277986b04bb223cfc634fed1 [2018-11-28 11:38:43,565 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:38:43,574 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:38:43,577 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:38:43,578 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:38:43,578 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:38:43,579 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ebd576d3-1e94-43e6-89f7-b28752c23dc6/bin-2019/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c [2018-11-28 11:38:43,618 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ebd576d3-1e94-43e6-89f7-b28752c23dc6/bin-2019/uautomizer/data/65146a9d6/550077cd379543ccb2df21d6b1df5340/FLAGa07ab7c92 [2018-11-28 11:38:44,020 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:38:44,021 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ebd576d3-1e94-43e6-89f7-b28752c23dc6/sv-benchmarks/c/bitvector/soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c [2018-11-28 11:38:44,025 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ebd576d3-1e94-43e6-89f7-b28752c23dc6/bin-2019/uautomizer/data/65146a9d6/550077cd379543ccb2df21d6b1df5340/FLAGa07ab7c92 [2018-11-28 11:38:44,034 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ebd576d3-1e94-43e6-89f7-b28752c23dc6/bin-2019/uautomizer/data/65146a9d6/550077cd379543ccb2df21d6b1df5340 [2018-11-28 11:38:44,036 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:38:44,037 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 11:38:44,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:38:44,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:38:44,040 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:38:44,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:38:44" (1/1) ... [2018-11-28 11:38:44,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bd248c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:44, skipping insertion in model container [2018-11-28 11:38:44,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:38:44" (1/1) ... [2018-11-28 11:38:44,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:38:44,065 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:38:44,179 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:38:44,182 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:38:44,206 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:38:44,214 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:38:44,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:44 WrapperNode [2018-11-28 11:38:44,214 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:38:44,215 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 11:38:44,215 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 11:38:44,215 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 11:38:44,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:44" (1/1) ... [2018-11-28 11:38:44,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:44" (1/1) ... [2018-11-28 11:38:44,286 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 11:38:44,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:38:44,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:38:44,287 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:38:44,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:44" (1/1) ... [2018-11-28 11:38:44,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:44" (1/1) ... [2018-11-28 11:38:44,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:44" (1/1) ... [2018-11-28 11:38:44,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:44" (1/1) ... [2018-11-28 11:38:44,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:44" (1/1) ... [2018-11-28 11:38:44,305 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:44" (1/1) ... [2018-11-28 11:38:44,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:44" (1/1) ... [2018-11-28 11:38:44,309 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:38:44,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:38:44,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:38:44,310 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:38:44,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ebd576d3-1e94-43e6-89f7-b28752c23dc6/bin-2019/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 [2018-11-28 11:38:44,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:38:44,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:38:44,650 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:38:44,650 INFO L280 CfgBuilder]: Removed 30 assue(true) statements. [2018-11-28 11:38:44,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:38:44 BoogieIcfgContainer [2018-11-28 11:38:44,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:38:44,651 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 11:38:44,651 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 11:38:44,655 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 11:38:44,656 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 11:38:44,656 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:38:44" (1/3) ... [2018-11-28 11:38:44,657 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d68cdb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:38:44, skipping insertion in model container [2018-11-28 11:38:44,657 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 11:38:44,657 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:44" (2/3) ... [2018-11-28 11:38:44,657 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d68cdb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:38:44, skipping insertion in model container [2018-11-28 11:38:44,657 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 11:38:44,657 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:38:44" (3/3) ... [2018-11-28 11:38:44,659 INFO L375 chiAutomizerObserver]: Analyzing ICFG soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c [2018-11-28 11:38:44,705 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:38:44,706 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 11:38:44,706 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 11:38:44,706 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 11:38:44,706 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:38:44,706 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:38:44,706 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 11:38:44,706 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:38:44,706 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 11:38:44,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states. [2018-11-28 11:38:44,740 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2018-11-28 11:38:44,741 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:38:44,741 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:38:44,746 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-28 11:38:44,746 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 11:38:44,747 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 11:38:44,747 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states. [2018-11-28 11:38:44,750 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2018-11-28 11:38:44,750 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:38:44,750 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:38:44,751 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-28 11:38:44,751 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 11:38:44,756 INFO L794 eck$LassoCheckResult]: Stem: 32#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 30#L19true assume !(0 == base2flt_~m % 4294967296); 19#L25true assume !(base2flt_~m % 4294967296 < 16777216); 14#L47-2true [2018-11-28 11:38:44,756 INFO L796 eck$LassoCheckResult]: Loop: 14#L47-2true assume !false; 25#L48true assume base2flt_~m % 4294967296 >= 33554432; 48#L49true assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 14#L47-2true [2018-11-28 11:38:44,759 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:38:44,760 INFO L82 PathProgramCache]: Analyzing trace with hash 30973, now seen corresponding path program 1 times [2018-11-28 11:38:44,761 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:38:44,761 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:38:44,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:38:44,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:38:44,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:38:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:38:44,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:38:44,876 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:38:44,876 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-11-28 11:38:44,879 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 11:38:44,879 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:38:44,879 INFO L82 PathProgramCache]: Analyzing trace with hash 73619, now seen corresponding path program 1 times [2018-11-28 11:38:44,879 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:38:44,879 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:38:44,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:38:44,880 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:38:44,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:38:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:38:44,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:38:44,929 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:38:44,930 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:38:44,930 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:38:44,930 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:38:44,930 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:38:44,930 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:38:44,930 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:38:44,930 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:38:44,931 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration1_Loop [2018-11-28 11:38:44,931 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:38:44,931 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:38:44,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:38:44,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:38:45,045 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:38:45,045 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ebd576d3-1e94-43e6-89f7-b28752c23dc6/bin-2019/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 [2018-11-28 11:38:45,065 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:38:45,065 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ebd576d3-1e94-43e6-89f7-b28752c23dc6/bin-2019/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 [2018-11-28 11:38:45,082 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:38:45,082 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:38:45,098 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:38:45,099 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:38:45,099 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:38:45,099 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:38:45,099 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:38:45,099 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:38:45,100 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:38:45,100 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:38:45,100 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:38:45,100 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration1_Loop [2018-11-28 11:38:45,100 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:38:45,100 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:38:45,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:38:45,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:38:45,176 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:38:45,179 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:38:45,180 INFO L122 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 [2018-11-28 11:38:45,181 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:38:45,182 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:38:45,182 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:38:45,182 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:38:45,183 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:38:45,184 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:38:45,184 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:38:45,188 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:38:45,192 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 11:38:45,192 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 11:38:45,193 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:38:45,194 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 11:38:45,194 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:38:45,195 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2018-11-28 11:38:45,195 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 11:38:45,213 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:38:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:38:45,222 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:38:45,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:38:45,229 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:38:45,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:38:45,239 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 [2018-11-28 11:38:45,240 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 72 states. Second operand 3 states. [2018-11-28 11:38:45,286 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 72 states.. Second operand 3 states. Result 212 states and 334 transitions. Complement of second has 6 states. [2018-11-28 11:38:45,287 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 [2018-11-28 11:38:45,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 11:38:45,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 219 transitions. [2018-11-28 11:38:45,290 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 219 transitions. Stem has 3 letters. Loop has 3 letters. [2018-11-28 11:38:45,290 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:38:45,291 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 219 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-28 11:38:45,291 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:38:45,291 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 219 transitions. Stem has 3 letters. Loop has 6 letters. [2018-11-28 11:38:45,291 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:38:45,292 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 212 states and 334 transitions. [2018-11-28 11:38:45,296 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2018-11-28 11:38:45,300 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 212 states to 56 states and 81 transitions. [2018-11-28 11:38:45,301 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2018-11-28 11:38:45,301 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2018-11-28 11:38:45,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 81 transitions. [2018-11-28 11:38:45,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 11:38:45,302 INFO L705 BuchiCegarLoop]: Abstraction has 56 states and 81 transitions. [2018-11-28 11:38:45,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 81 transitions. [2018-11-28 11:38:45,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 45. [2018-11-28 11:38:45,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-28 11:38:45,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 69 transitions. [2018-11-28 11:38:45,319 INFO L728 BuchiCegarLoop]: Abstraction has 45 states and 69 transitions. [2018-11-28 11:38:45,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 11:38:45,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:38:45,322 INFO L87 Difference]: Start difference. First operand 45 states and 69 transitions. Second operand 3 states. [2018-11-28 11:38:45,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:38:45,344 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2018-11-28 11:38:45,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 11:38:45,344 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2018-11-28 11:38:45,345 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2018-11-28 11:38:45,345 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 30 transitions. [2018-11-28 11:38:45,345 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2018-11-28 11:38:45,345 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2018-11-28 11:38:45,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2018-11-28 11:38:45,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 11:38:45,346 INFO L705 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2018-11-28 11:38:45,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2018-11-28 11:38:45,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-11-28 11:38:45,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-28 11:38:45,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2018-11-28 11:38:45,347 INFO L728 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2018-11-28 11:38:45,347 INFO L608 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2018-11-28 11:38:45,347 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 11:38:45,347 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. [2018-11-28 11:38:45,347 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2018-11-28 11:38:45,347 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:38:45,347 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:38:45,347 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 11:38:45,347 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 11:38:45,348 INFO L794 eck$LassoCheckResult]: Stem: 414#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 412#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 400#L69 base2flt_#res := base2flt_~__retres4~0; 401#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 408#L19-1 assume !(0 == base2flt_~m % 4294967296); 411#L25-1 assume !(base2flt_~m % 4294967296 < 16777216); 405#L47-5 [2018-11-28 11:38:45,348 INFO L796 eck$LassoCheckResult]: Loop: 405#L47-5 assume !false; 395#L48-1 assume base2flt_~m % 4294967296 >= 33554432; 397#L49-1 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 405#L47-5 [2018-11-28 11:38:45,348 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:38:45,348 INFO L82 PathProgramCache]: Analyzing trace with hash 921737699, now seen corresponding path program 1 times [2018-11-28 11:38:45,348 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:38:45,348 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:38:45,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:38:45,349 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:38:45,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:38:45,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:38:45,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:38:45,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:38:45,362 INFO L82 PathProgramCache]: Analyzing trace with hash 136178, now seen corresponding path program 1 times [2018-11-28 11:38:45,362 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:38:45,362 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:38:45,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:38:45,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:38:45,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:38:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:38:45,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:38:45,370 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:38:45,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1761973968, now seen corresponding path program 1 times [2018-11-28 11:38:45,371 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:38:45,371 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:38:45,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:38:45,372 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:38:45,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:38:45,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:38:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:38:45,403 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:38:45,403 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:38:45,403 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:38:45,403 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:38:45,404 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:38:45,404 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:38:45,404 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:38:45,404 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:38:45,404 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration2_Loop [2018-11-28 11:38:45,404 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:38:45,404 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:38:45,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:38:45,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:38:45,482 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:38:45,482 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ebd576d3-1e94-43e6-89f7-b28752c23dc6/bin-2019/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 [2018-11-28 11:38:45,489 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:38:45,489 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:38:45,541 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:38:45,542 INFO L448 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/working_dir_ebd576d3-1e94-43e6-89f7-b28752c23dc6/bin-2019/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 [2018-11-28 11:38:45,565 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:38:45,565 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ebd576d3-1e94-43e6-89f7-b28752c23dc6/bin-2019/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 [2018-11-28 11:38:45,582 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:38:45,582 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:38:45,609 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:38:45,612 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:38:45,612 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:38:45,612 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:38:45,612 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:38:45,613 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:38:45,613 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:38:45,613 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:38:45,613 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:38:45,613 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration2_Loop [2018-11-28 11:38:45,613 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:38:45,613 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:38:45,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:38:45,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:38:45,691 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:38:45,691 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:38:45,692 INFO L122 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 [2018-11-28 11:38:45,693 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:38:45,693 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:38:45,693 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:38:45,693 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:38:45,693 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:38:45,694 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:38:45,694 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:38:45,700 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:38:45,700 INFO L122 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 [2018-11-28 11:38:45,701 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:38:45,701 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:38:45,701 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:38:45,701 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:38:45,701 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:38:45,702 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:38:45,702 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:38:45,705 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:38:45,707 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 11:38:45,707 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 11:38:45,707 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:38:45,707 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 11:38:45,708 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:38:45,708 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2018-11-28 11:38:45,708 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 11:38:45,720 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:38:45,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:38:45,730 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:38:45,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:38:45,734 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:38:45,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:38:45,734 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 [2018-11-28 11:38:45,735 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 30 transitions. cyclomatic complexity: 11 Second operand 3 states. [2018-11-28 11:38:45,744 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. [2018-11-28 11:38:45,744 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 [2018-11-28 11:38:45,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 11:38:45,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2018-11-28 11:38:45,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-28 11:38:45,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:38:45,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-28 11:38:45,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:38:45,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-28 11:38:45,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:38:45,746 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 50 transitions. [2018-11-28 11:38:45,746 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2018-11-28 11:38:45,747 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 37 states and 46 transitions. [2018-11-28 11:38:45,747 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2018-11-28 11:38:45,747 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2018-11-28 11:38:45,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 46 transitions. [2018-11-28 11:38:45,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 11:38:45,748 INFO L705 BuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2018-11-28 11:38:45,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 46 transitions. [2018-11-28 11:38:45,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 26. [2018-11-28 11:38:45,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-28 11:38:45,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2018-11-28 11:38:45,750 INFO L728 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2018-11-28 11:38:45,750 INFO L608 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2018-11-28 11:38:45,750 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 11:38:45,751 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2018-11-28 11:38:45,751 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2018-11-28 11:38:45,751 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:38:45,751 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:38:45,751 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 11:38:45,752 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 11:38:45,752 INFO L794 eck$LassoCheckResult]: Stem: 526#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 524#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 512#L69 base2flt_#res := base2flt_~__retres4~0; 513#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 520#L19-1 assume !(0 == base2flt_~m % 4294967296); 523#L25-1 assume base2flt_~m % 4294967296 < 16777216; 528#L37-3 [2018-11-28 11:38:45,752 INFO L796 eck$LassoCheckResult]: Loop: 528#L37-3 assume !false; 518#L28-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 519#L37-2 assume base2flt_~m % 4294967296 < 16777216; 528#L37-3 [2018-11-28 11:38:45,752 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:38:45,752 INFO L82 PathProgramCache]: Analyzing trace with hash 921737673, now seen corresponding path program 1 times [2018-11-28 11:38:45,752 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:38:45,752 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:38:45,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:38:45,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:38:45,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:38:45,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:38:45,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:38:45,761 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:38:45,761 INFO L82 PathProgramCache]: Analyzing trace with hash 110419, now seen corresponding path program 1 times [2018-11-28 11:38:45,761 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:38:45,761 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:38:45,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:38:45,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:38:45,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:38:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:38:45,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:38:45,766 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:38:45,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1761173643, now seen corresponding path program 1 times [2018-11-28 11:38:45,767 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:38:45,767 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:38:45,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:38:45,767 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:38:45,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:38:45,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:38:45,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:38:45,796 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:38:45,797 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:38:45,797 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:38:45,797 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:38:45,797 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:38:45,797 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:38:45,797 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:38:45,797 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:38:45,797 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration3_Loop [2018-11-28 11:38:45,797 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:38:45,797 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:38:45,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:38:45,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:38:45,843 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:38:45,843 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ebd576d3-1e94-43e6-89f7-b28752c23dc6/bin-2019/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 [2018-11-28 11:38:45,849 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:38:45,849 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:38:45,855 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:38:45,855 INFO L448 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/working_dir_ebd576d3-1e94-43e6-89f7-b28752c23dc6/bin-2019/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 [2018-11-28 11:38:45,870 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:38:45,870 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ebd576d3-1e94-43e6-89f7-b28752c23dc6/bin-2019/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 [2018-11-28 11:38:45,888 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:38:45,888 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:38:45,905 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:38:45,906 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:38:45,906 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:38:45,906 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:38:45,906 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:38:45,906 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:38:45,906 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:38:45,907 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:38:45,907 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:38:45,907 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration3_Loop [2018-11-28 11:38:45,907 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:38:45,907 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:38:45,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:38:45,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:38:45,951 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:38:45,951 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:38:45,951 INFO L122 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 [2018-11-28 11:38:45,952 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:38:45,952 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:38:45,952 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:38:45,952 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:38:45,952 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:38:45,953 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:38:45,953 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:38:45,955 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:38:45,955 INFO L122 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 [2018-11-28 11:38:45,956 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:38:45,956 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:38:45,956 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:38:45,956 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:38:45,956 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:38:45,957 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:38:45,957 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:38:45,959 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:38:45,961 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 11:38:45,961 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 11:38:45,961 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:38:45,961 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 11:38:45,961 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:38:45,961 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2018-11-28 11:38:45,962 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 11:38:45,986 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:38:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:38:46,000 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:38:46,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:38:46,003 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:38:46,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:38:46,021 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 [2018-11-28 11:38:46,021 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 12 Second operand 4 states. [2018-11-28 11:38:46,028 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. [2018-11-28 11:38:46,029 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 [2018-11-28 11:38:46,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 11:38:46,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2018-11-28 11:38:46,029 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-28 11:38:46,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:38:46,029 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-28 11:38:46,030 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:38:46,030 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-28 11:38:46,030 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:38:46,030 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 55 transitions. [2018-11-28 11:38:46,031 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2018-11-28 11:38:46,032 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 41 states and 51 transitions. [2018-11-28 11:38:46,032 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2018-11-28 11:38:46,032 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2018-11-28 11:38:46,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 51 transitions. [2018-11-28 11:38:46,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 11:38:46,032 INFO L705 BuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2018-11-28 11:38:46,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 51 transitions. [2018-11-28 11:38:46,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 29. [2018-11-28 11:38:46,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-28 11:38:46,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2018-11-28 11:38:46,035 INFO L728 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2018-11-28 11:38:46,035 INFO L608 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2018-11-28 11:38:46,035 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 11:38:46,035 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 38 transitions. [2018-11-28 11:38:46,035 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-28 11:38:46,035 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:38:46,035 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:38:46,036 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:38:46,036 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 11:38:46,036 INFO L794 eck$LassoCheckResult]: Stem: 646#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 643#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 632#L69 base2flt_#res := base2flt_~__retres4~0; 633#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 639#L19-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 634#L69-1 base2flt_#res := base2flt_~__retres4~0; 630#L70-1 main_#t~ret5 := base2flt_#res;main_~a~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 631#L19-2 assume !(0 == base2flt_~m % 4294967296); 640#L25-2 assume !(base2flt_~m % 4294967296 < 16777216); 627#L47-8 [2018-11-28 11:38:46,036 INFO L796 eck$LassoCheckResult]: Loop: 627#L47-8 assume !false; 641#L48-2 assume base2flt_~m % 4294967296 >= 33554432; 626#L49-2 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 627#L47-8 [2018-11-28 11:38:46,037 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:38:46,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951196, now seen corresponding path program 1 times [2018-11-28 11:38:46,037 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:38:46,037 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:38:46,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:38:46,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:38:46,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:38:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:38:46,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:38:46,048 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:38:46,048 INFO L82 PathProgramCache]: Analyzing trace with hash 198737, now seen corresponding path program 1 times [2018-11-28 11:38:46,048 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:38:46,048 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:38:46,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:38:46,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:38:46,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:38:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:38:46,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:38:46,055 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:38:46,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1766695638, now seen corresponding path program 1 times [2018-11-28 11:38:46,055 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:38:46,055 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:38:46,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:38:46,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:38:46,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:38:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:38:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:38:46,090 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:38:46,090 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:38:46,090 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:38:46,090 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:38:46,090 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:38:46,090 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:38:46,090 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:38:46,090 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:38:46,091 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration4_Loop [2018-11-28 11:38:46,091 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:38:46,091 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:38:46,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:38:46,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:38:46,147 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:38:46,147 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ebd576d3-1e94-43e6-89f7-b28752c23dc6/bin-2019/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 [2018-11-28 11:38:46,156 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:38:46,156 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ebd576d3-1e94-43e6-89f7-b28752c23dc6/bin-2019/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 [2018-11-28 11:38:46,180 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:38:46,180 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:38:46,196 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:38:46,197 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:38:46,197 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:38:46,197 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:38:46,198 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:38:46,198 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:38:46,198 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:38:46,198 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:38:46,198 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:38:46,198 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration4_Loop [2018-11-28 11:38:46,198 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:38:46,198 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:38:46,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:38:46,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:38:46,261 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:38:46,261 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:38:46,262 INFO L122 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 [2018-11-28 11:38:46,262 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:38:46,263 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:38:46,263 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:38:46,263 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:38:46,263 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:38:46,263 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:38:46,263 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:38:46,265 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:38:46,266 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 11:38:46,266 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 11:38:46,266 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:38:46,266 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 11:38:46,267 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:38:46,267 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2018-11-28 11:38:46,267 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 11:38:46,275 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:38:46,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:38:46,287 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:38:46,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:38:46,291 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:38:46,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:38:46,292 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 [2018-11-28 11:38:46,293 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 13 Second operand 3 states. [2018-11-28 11:38:46,297 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. [2018-11-28 11:38:46,298 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 [2018-11-28 11:38:46,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 11:38:46,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2018-11-28 11:38:46,299 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-28 11:38:46,299 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:38:46,299 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-28 11:38:46,299 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:38:46,299 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 6 letters. [2018-11-28 11:38:46,299 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:38:46,299 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2018-11-28 11:38:46,300 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 11:38:46,300 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 34 transitions. [2018-11-28 11:38:46,300 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2018-11-28 11:38:46,300 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2018-11-28 11:38:46,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 34 transitions. [2018-11-28 11:38:46,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 11:38:46,300 INFO L705 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2018-11-28 11:38:46,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 34 transitions. [2018-11-28 11:38:46,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-11-28 11:38:46,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-28 11:38:46,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2018-11-28 11:38:46,301 INFO L728 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2018-11-28 11:38:46,301 INFO L608 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2018-11-28 11:38:46,301 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-28 11:38:46,302 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2018-11-28 11:38:46,302 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 11:38:46,302 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:38:46,302 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:38:46,302 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:38:46,302 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 11:38:46,302 INFO L794 eck$LassoCheckResult]: Stem: 759#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 756#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 746#L69 base2flt_#res := base2flt_~__retres4~0; 747#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 753#L19-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 748#L69-1 base2flt_#res := base2flt_~__retres4~0; 744#L70-1 main_#t~ret5 := base2flt_#res;main_~a~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 745#L19-2 assume !(0 == base2flt_~m % 4294967296); 754#L25-2 assume base2flt_~m % 4294967296 < 16777216; 758#L37-5 [2018-11-28 11:38:46,303 INFO L796 eck$LassoCheckResult]: Loop: 758#L37-5 assume !false; 742#L28-2 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 743#L37-4 assume base2flt_~m % 4294967296 < 16777216; 758#L37-5 [2018-11-28 11:38:46,303 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:38:46,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951170, now seen corresponding path program 1 times [2018-11-28 11:38:46,303 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:38:46,303 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:38:46,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:38:46,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:38:46,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:38:46,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:38:46,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:38:46,314 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:38:46,314 INFO L82 PathProgramCache]: Analyzing trace with hash 172978, now seen corresponding path program 1 times [2018-11-28 11:38:46,314 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:38:46,314 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:38:46,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:38:46,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:38:46,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:38:46,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:38:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:38:46,319 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:38:46,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1765895313, now seen corresponding path program 1 times [2018-11-28 11:38:46,319 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:38:46,319 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:38:46,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:38:46,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:38:46,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:38:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:38:46,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:38:46,362 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:38:46,362 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:38:46,362 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:38:46,362 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:38:46,362 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:38:46,362 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:38:46,362 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:38:46,362 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:38:46,362 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration5_Loop [2018-11-28 11:38:46,362 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:38:46,363 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:38:46,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:38:46,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:38:46,424 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:38:46,424 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ebd576d3-1e94-43e6-89f7-b28752c23dc6/bin-2019/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 [2018-11-28 11:38:46,430 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:38:46,430 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ebd576d3-1e94-43e6-89f7-b28752c23dc6/bin-2019/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 [2018-11-28 11:38:46,461 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:38:46,461 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:38:46,477 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:38:46,479 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:38:46,479 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:38:46,479 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:38:46,479 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:38:46,479 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:38:46,479 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:38:46,479 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:38:46,479 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:38:46,479 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration5_Loop [2018-11-28 11:38:46,479 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:38:46,480 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:38:46,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:38:46,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:38:46,565 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:38:46,565 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:38:46,566 INFO L122 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 [2018-11-28 11:38:46,567 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:38:46,568 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:38:46,568 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:38:46,568 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:38:46,568 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:38:46,568 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:38:46,568 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:38:46,570 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:38:46,571 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 11:38:46,572 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 11:38:46,572 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:38:46,573 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 11:38:46,573 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:38:46,573 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2018-11-28 11:38:46,573 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 11:38:46,582 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:38:46,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:38:46,590 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:38:46,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:38:46,594 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:38:46,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:38:46,602 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 [2018-11-28 11:38:46,603 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 11 Second operand 4 states. [2018-11-28 11:38:46,609 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. [2018-11-28 11:38:46,609 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 [2018-11-28 11:38:46,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 11:38:46,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2018-11-28 11:38:46,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-28 11:38:46,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:38:46,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-28 11:38:46,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:38:46,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 6 letters. [2018-11-28 11:38:46,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:38:46,610 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 38 transitions. [2018-11-28 11:38:46,610 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 11:38:46,611 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2018-11-28 11:38:46,611 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 11:38:46,611 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 11:38:46,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 11:38:46,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 11:38:46,611 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 11:38:46,611 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 11:38:46,611 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 11:38:46,611 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-28 11:38:46,611 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 11:38:46,611 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 11:38:46,611 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 11:38:46,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:38:46 BoogieIcfgContainer [2018-11-28 11:38:46,617 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 11:38:46,617 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 11:38:46,617 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 11:38:46,617 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 11:38:46,617 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:38:44" (3/4) ... [2018-11-28 11:38:46,619 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 11:38:46,620 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 11:38:46,620 INFO L168 Benchmark]: Toolchain (without parser) took 2584.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 218.1 MB). Free memory was 952.2 MB in the beginning and 1.2 GB in the end (delta: -236.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:38:46,621 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:38:46,621 INFO L168 Benchmark]: CACSL2BoogieTranslator took 177.41 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 938.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-28 11:38:46,622 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 938.8 MB in the beginning and 1.1 GB in the end (delta: -193.2 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-11-28 11:38:46,622 INFO L168 Benchmark]: Boogie Preprocessor took 22.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-28 11:38:46,623 INFO L168 Benchmark]: RCFGBuilder took 341.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. [2018-11-28 11:38:46,623 INFO L168 Benchmark]: BuchiAutomizer took 1965.34 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 84.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -93.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:38:46,624 INFO L168 Benchmark]: Witness Printer took 2.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:38:46,626 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 177.41 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 938.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 71.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 938.8 MB in the beginning and 1.1 GB in the end (delta: -193.2 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 341.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1965.34 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 84.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -93.6 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 2.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (1 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * e + 253 and consists of 4 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. 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: 247 SDtfs, 215 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 div605 bol100 ite100 ukn100 eq131 hnf43 smp92 dnf100 smp100 tf105 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 14ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...