./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1_true-unreach-call_true-no-overflow_true-termination.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_21c69269-c9dc-46dc-bd2f-06eaee7eb2c5/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_21c69269-c9dc-46dc-bd2f-06eaee7eb2c5/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_21c69269-c9dc-46dc-bd2f-06eaee7eb2c5/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_21c69269-c9dc-46dc-bd2f-06eaee7eb2c5/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1_true-unreach-call_true-no-overflow_true-termination.c.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_21c69269-c9dc-46dc-bd2f-06eaee7eb2c5/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_21c69269-c9dc-46dc-bd2f-06eaee7eb2c5/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 f756365182c9801d4a2ac186a40692687a86b469 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 04:35:05,523 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 04:35:05,524 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 04:35:05,530 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 04:35:05,530 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 04:35:05,531 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 04:35:05,531 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 04:35:05,533 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 04:35:05,534 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 04:35:05,534 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 04:35:05,535 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 04:35:05,535 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 04:35:05,535 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 04:35:05,536 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 04:35:05,537 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 04:35:05,537 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 04:35:05,537 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 04:35:05,539 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 04:35:05,540 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 04:35:05,541 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 04:35:05,542 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 04:35:05,542 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 04:35:05,544 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 04:35:05,544 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 04:35:05,544 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 04:35:05,545 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 04:35:05,546 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 04:35:05,546 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 04:35:05,546 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 04:35:05,547 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 04:35:05,547 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 04:35:05,547 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 04:35:05,547 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 04:35:05,548 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 04:35:05,548 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 04:35:05,548 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 04:35:05,549 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_21c69269-c9dc-46dc-bd2f-06eaee7eb2c5/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-23 04:35:05,556 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 04:35:05,556 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 04:35:05,557 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 04:35:05,557 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 04:35:05,557 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 04:35:05,557 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 04:35:05,557 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 04:35:05,557 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 04:35:05,558 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 04:35:05,558 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 04:35:05,558 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 04:35:05,558 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 04:35:05,558 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 04:35:05,558 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 04:35:05,558 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 04:35:05,559 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 04:35:05,559 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 04:35:05,559 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 04:35:05,559 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 04:35:05,559 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 04:35:05,559 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 04:35:05,559 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 04:35:05,560 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 04:35:05,560 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 04:35:05,560 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 04:35:05,560 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 04:35:05,560 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 04:35:05,560 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 04:35:05,560 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 04:35:05,561 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 04:35:05,561 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 04:35:05,561 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 04:35:05,562 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_21c69269-c9dc-46dc-bd2f-06eaee7eb2c5/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 -> f756365182c9801d4a2ac186a40692687a86b469 [2018-11-23 04:35:05,586 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 04:35:05,595 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 04:35:05,598 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 04:35:05,599 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 04:35:05,599 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 04:35:05,600 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_21c69269-c9dc-46dc-bd2f-06eaee7eb2c5/bin-2019/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_1_true-unreach-call_true-no-overflow_true-termination.c.cil.c [2018-11-23 04:35:05,642 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_21c69269-c9dc-46dc-bd2f-06eaee7eb2c5/bin-2019/uautomizer/data/d385a1a7b/d0d9462a035a4874b5f17c6ed70537bf/FLAG0e1828516 [2018-11-23 04:35:06,062 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 04:35:06,063 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_21c69269-c9dc-46dc-bd2f-06eaee7eb2c5/sv-benchmarks/c/bitvector/soft_float_1_true-unreach-call_true-no-overflow_true-termination.c.cil.c [2018-11-23 04:35:06,067 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_21c69269-c9dc-46dc-bd2f-06eaee7eb2c5/bin-2019/uautomizer/data/d385a1a7b/d0d9462a035a4874b5f17c6ed70537bf/FLAG0e1828516 [2018-11-23 04:35:06,078 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_21c69269-c9dc-46dc-bd2f-06eaee7eb2c5/bin-2019/uautomizer/data/d385a1a7b/d0d9462a035a4874b5f17c6ed70537bf [2018-11-23 04:35:06,080 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 04:35:06,082 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 04:35:06,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 04:35:06,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 04:35:06,085 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 04:35:06,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:35:06" (1/1) ... [2018-11-23 04:35:06,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52fb40ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:35:06, skipping insertion in model container [2018-11-23 04:35:06,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:35:06" (1/1) ... [2018-11-23 04:35:06,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 04:35:06,120 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 04:35:06,248 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:35:06,250 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 04:35:06,274 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:35:06,284 INFO L195 MainTranslator]: Completed translation [2018-11-23 04:35:06,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:35:06 WrapperNode [2018-11-23 04:35:06,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 04:35:06,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 04:35:06,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 04:35:06,285 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 04:35:06,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:35:06" (1/1) ... [2018-11-23 04:35:06,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:35:06" (1/1) ... [2018-11-23 04:35:06,348 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 04:35:06,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 04:35:06,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 04:35:06,349 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 04:35:06,354 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:35:06" (1/1) ... [2018-11-23 04:35:06,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:35:06" (1/1) ... [2018-11-23 04:35:06,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:35:06" (1/1) ... [2018-11-23 04:35:06,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:35:06" (1/1) ... [2018-11-23 04:35:06,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:35:06" (1/1) ... [2018-11-23 04:35:06,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:35:06" (1/1) ... [2018-11-23 04:35:06,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:35:06" (1/1) ... [2018-11-23 04:35:06,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 04:35:06,370 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 04:35:06,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 04:35:06,370 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 04:35:06,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:35:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21c69269-c9dc-46dc-bd2f-06eaee7eb2c5/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 [2018-11-23 04:35:06,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 04:35:06,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 04:35:06,719 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 04:35:06,719 INFO L280 CfgBuilder]: Removed 28 assue(true) statements. [2018-11-23 04:35:06,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:35:06 BoogieIcfgContainer [2018-11-23 04:35:06,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 04:35:06,720 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 04:35:06,720 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 04:35:06,722 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 04:35:06,723 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 04:35:06,723 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 04:35:06" (1/3) ... [2018-11-23 04:35:06,724 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@152ac3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 04:35:06, skipping insertion in model container [2018-11-23 04:35:06,724 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 04:35:06,724 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:35:06" (2/3) ... [2018-11-23 04:35:06,724 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@152ac3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 04:35:06, skipping insertion in model container [2018-11-23 04:35:06,724 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 04:35:06,724 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:35:06" (3/3) ... [2018-11-23 04:35:06,726 INFO L375 chiAutomizerObserver]: Analyzing ICFG soft_float_1_true-unreach-call_true-no-overflow_true-termination.c.cil.c [2018-11-23 04:35:06,764 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 04:35:06,765 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 04:35:06,765 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 04:35:06,765 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 04:35:06,765 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 04:35:06,765 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 04:35:06,765 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 04:35:06,765 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 04:35:06,765 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 04:35:06,774 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2018-11-23 04:35:06,791 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2018-11-23 04:35:06,791 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 04:35:06,791 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 04:35:06,795 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-23 04:35:06,796 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 04:35:06,796 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 04:35:06,796 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2018-11-23 04:35:06,799 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2018-11-23 04:35:06,800 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 04:35:06,800 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 04:35:06,800 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-23 04:35:06,800 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 04:35:06,804 INFO L794 eck$LassoCheckResult]: Stem: 37#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 33#L19true assume !(0 == base2flt_~m % 4294967296); 21#L25true assume !(base2flt_~m % 4294967296 < 16777216); 16#L47-2true [2018-11-23 04:35:06,805 INFO L796 eck$LassoCheckResult]: Loop: 16#L47-2true assume !false; 27#L48true assume base2flt_~m % 4294967296 >= 33554432; 55#L49true assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 16#L47-2true [2018-11-23 04:35:06,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:35:06,808 INFO L82 PathProgramCache]: Analyzing trace with hash 30973, now seen corresponding path program 1 times [2018-11-23 04:35:06,810 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:35:06,810 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:35:06,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:35:06,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:35:06,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:35:06,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:35:06,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:35:06,906 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:35:06,906 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-11-23 04:35:06,909 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-23 04:35:06,909 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:35:06,909 INFO L82 PathProgramCache]: Analyzing trace with hash 73619, now seen corresponding path program 1 times [2018-11-23 04:35:06,909 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:35:06,909 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:35:06,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:35:06,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:35:06,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:35:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:35:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:35:06,951 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:35:06,951 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:35:06,951 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:35:06,952 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:35:06,952 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 04:35:06,952 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:35:06,952 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:35:06,952 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:35:06,952 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration1_Loop [2018-11-23 04:35:06,952 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:35:06,952 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:35:06,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:35:06,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:35:07,029 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:35:07,030 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21c69269-c9dc-46dc-bd2f-06eaee7eb2c5/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 [2018-11-23 04:35:07,044 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:35:07,044 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21c69269-c9dc-46dc-bd2f-06eaee7eb2c5/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 [2018-11-23 04:35:07,060 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 04:35:07,060 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:35:07,076 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 04:35:07,077 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:35:07,077 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:35:07,077 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:35:07,077 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:35:07,078 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 04:35:07,078 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:35:07,078 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:35:07,078 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:35:07,078 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration1_Loop [2018-11-23 04:35:07,078 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:35:07,078 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:35:07,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:35:07,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:35:07,162 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:35:07,166 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 04:35:07,167 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 [2018-11-23 04:35:07,169 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:35:07,169 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:35:07,169 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:35:07,169 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:35:07,170 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:35:07,171 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 04:35:07,171 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:35:07,175 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 04:35:07,179 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 04:35:07,179 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 04:35:07,180 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 04:35:07,180 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 04:35:07,181 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 04:35:07,181 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2018-11-23 04:35:07,182 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 04:35:07,194 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:35:07,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:35:07,205 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:35:07,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:35:07,214 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:35:07,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:35:07,227 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 [2018-11-23 04:35:07,228 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 86 states. Second operand 3 states. [2018-11-23 04:35:07,288 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 86 states.. Second operand 3 states. Result 254 states and 411 transitions. Complement of second has 6 states. [2018-11-23 04:35:07,288 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 [2018-11-23 04:35:07,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 04:35:07,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 269 transitions. [2018-11-23 04:35:07,291 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 269 transitions. Stem has 3 letters. Loop has 3 letters. [2018-11-23 04:35:07,292 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:35:07,293 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 269 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-23 04:35:07,293 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:35:07,293 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 269 transitions. Stem has 3 letters. Loop has 6 letters. [2018-11-23 04:35:07,293 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:35:07,294 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 254 states and 411 transitions. [2018-11-23 04:35:07,300 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2018-11-23 04:35:07,305 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 254 states to 56 states and 81 transitions. [2018-11-23 04:35:07,305 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2018-11-23 04:35:07,306 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2018-11-23 04:35:07,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 81 transitions. [2018-11-23 04:35:07,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 04:35:07,307 INFO L705 BuchiCegarLoop]: Abstraction has 56 states and 81 transitions. [2018-11-23 04:35:07,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 81 transitions. [2018-11-23 04:35:07,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 45. [2018-11-23 04:35:07,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-23 04:35:07,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 69 transitions. [2018-11-23 04:35:07,326 INFO L728 BuchiCegarLoop]: Abstraction has 45 states and 69 transitions. [2018-11-23 04:35:07,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 04:35:07,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 04:35:07,328 INFO L87 Difference]: Start difference. First operand 45 states and 69 transitions. Second operand 3 states. [2018-11-23 04:35:07,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:35:07,357 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2018-11-23 04:35:07,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 04:35:07,357 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2018-11-23 04:35:07,358 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2018-11-23 04:35:07,358 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 30 transitions. [2018-11-23 04:35:07,358 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2018-11-23 04:35:07,359 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2018-11-23 04:35:07,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2018-11-23 04:35:07,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 04:35:07,359 INFO L705 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2018-11-23 04:35:07,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2018-11-23 04:35:07,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-11-23 04:35:07,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-23 04:35:07,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2018-11-23 04:35:07,361 INFO L728 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2018-11-23 04:35:07,361 INFO L608 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2018-11-23 04:35:07,361 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 04:35:07,361 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. [2018-11-23 04:35:07,361 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2018-11-23 04:35:07,361 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 04:35:07,361 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 04:35:07,361 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-23 04:35:07,362 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 04:35:07,362 INFO L794 eck$LassoCheckResult]: Stem: 469#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_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~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_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 468#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 456#L69 base2flt_#res := base2flt_~__retres4~0; 457#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; 464#L19-1 assume !(0 == base2flt_~m % 4294967296); 467#L25-1 assume !(base2flt_~m % 4294967296 < 16777216); 461#L47-5 [2018-11-23 04:35:07,362 INFO L796 eck$LassoCheckResult]: Loop: 461#L47-5 assume !false; 449#L48-1 assume base2flt_~m % 4294967296 >= 33554432; 451#L49-1 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 461#L47-5 [2018-11-23 04:35:07,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:35:07,362 INFO L82 PathProgramCache]: Analyzing trace with hash 921737699, now seen corresponding path program 1 times [2018-11-23 04:35:07,362 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:35:07,362 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:35:07,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:35:07,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:35:07,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:35:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:35:07,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:35:07,374 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:35:07,374 INFO L82 PathProgramCache]: Analyzing trace with hash 136178, now seen corresponding path program 1 times [2018-11-23 04:35:07,374 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:35:07,374 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:35:07,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:35:07,375 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:35:07,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:35:07,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:35:07,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:35:07,382 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:35:07,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1761973968, now seen corresponding path program 1 times [2018-11-23 04:35:07,382 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:35:07,382 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:35:07,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:35:07,383 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:35:07,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:35:07,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:35:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:35:07,428 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:35:07,428 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:35:07,428 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:35:07,429 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:35:07,429 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 04:35:07,429 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:35:07,429 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:35:07,429 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:35:07,429 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration2_Loop [2018-11-23 04:35:07,429 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:35:07,429 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:35:07,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:35:07,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:35:07,474 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:35:07,474 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21c69269-c9dc-46dc-bd2f-06eaee7eb2c5/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 [2018-11-23 04:35:07,478 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:35:07,478 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:35:07,530 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 04:35:07,530 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_21c69269-c9dc-46dc-bd2f-06eaee7eb2c5/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 [2018-11-23 04:35:07,544 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:35:07,544 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21c69269-c9dc-46dc-bd2f-06eaee7eb2c5/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 [2018-11-23 04:35:07,560 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 04:35:07,561 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:35:07,589 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 04:35:07,590 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:35:07,590 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:35:07,590 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:35:07,590 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:35:07,590 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 04:35:07,590 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:35:07,590 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:35:07,591 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:35:07,591 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration2_Loop [2018-11-23 04:35:07,591 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:35:07,591 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:35:07,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:35:07,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:35:07,677 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:35:07,677 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 04:35:07,678 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 [2018-11-23 04:35:07,679 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:35:07,679 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:35:07,679 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:35:07,679 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:35:07,679 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:35:07,680 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 04:35:07,680 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:35:07,686 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 04:35:07,686 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 [2018-11-23 04:35:07,687 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:35:07,687 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:35:07,687 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:35:07,687 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:35:07,687 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:35:07,688 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 04:35:07,688 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:35:07,691 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 04:35:07,693 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 04:35:07,693 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 04:35:07,693 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 04:35:07,693 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 04:35:07,694 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 04:35:07,694 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2018-11-23 04:35:07,694 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 04:35:07,714 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:35:07,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:35:07,719 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:35:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:35:07,723 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:35:07,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:35:07,723 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 [2018-11-23 04:35:07,723 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 30 transitions. cyclomatic complexity: 11 Second operand 3 states. [2018-11-23 04:35:07,731 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. [2018-11-23 04:35:07,731 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 [2018-11-23 04:35:07,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 04:35:07,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2018-11-23 04:35:07,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-23 04:35:07,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:35:07,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-23 04:35:07,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:35:07,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-23 04:35:07,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:35:07,732 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 50 transitions. [2018-11-23 04:35:07,733 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2018-11-23 04:35:07,733 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 37 states and 46 transitions. [2018-11-23 04:35:07,733 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2018-11-23 04:35:07,733 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2018-11-23 04:35:07,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 46 transitions. [2018-11-23 04:35:07,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 04:35:07,734 INFO L705 BuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2018-11-23 04:35:07,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 46 transitions. [2018-11-23 04:35:07,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 26. [2018-11-23 04:35:07,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-23 04:35:07,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2018-11-23 04:35:07,736 INFO L728 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2018-11-23 04:35:07,736 INFO L608 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2018-11-23 04:35:07,737 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-23 04:35:07,737 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2018-11-23 04:35:07,738 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2018-11-23 04:35:07,738 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 04:35:07,738 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 04:35:07,738 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-23 04:35:07,738 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 04:35:07,738 INFO L794 eck$LassoCheckResult]: Stem: 583#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_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~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_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 580#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 568#L69 base2flt_#res := base2flt_~__retres4~0; 569#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; 576#L19-1 assume !(0 == base2flt_~m % 4294967296); 579#L25-1 assume base2flt_~m % 4294967296 < 16777216; 584#L37-3 [2018-11-23 04:35:07,739 INFO L796 eck$LassoCheckResult]: Loop: 584#L37-3 assume !false; 574#L28-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 575#L37-2 assume base2flt_~m % 4294967296 < 16777216; 584#L37-3 [2018-11-23 04:35:07,739 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:35:07,739 INFO L82 PathProgramCache]: Analyzing trace with hash 921737673, now seen corresponding path program 1 times [2018-11-23 04:35:07,739 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:35:07,739 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:35:07,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:35:07,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:35:07,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:35:07,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:35:07,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:35:07,751 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:35:07,751 INFO L82 PathProgramCache]: Analyzing trace with hash 110419, now seen corresponding path program 1 times [2018-11-23 04:35:07,751 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:35:07,751 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:35:07,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:35:07,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:35:07,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:35:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:35:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:35:07,756 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:35:07,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1761173643, now seen corresponding path program 1 times [2018-11-23 04:35:07,756 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:35:07,756 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:35:07,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:35:07,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:35:07,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:35:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:35:07,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:35:07,783 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:35:07,783 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:35:07,783 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:35:07,783 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:35:07,783 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 04:35:07,783 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:35:07,783 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:35:07,783 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:35:07,783 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration3_Loop [2018-11-23 04:35:07,784 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:35:07,784 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:35:07,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:35:07,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:35:07,832 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:35:07,832 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21c69269-c9dc-46dc-bd2f-06eaee7eb2c5/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 [2018-11-23 04:35:07,834 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:35:07,834 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:35:07,840 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 04:35:07,840 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_21c69269-c9dc-46dc-bd2f-06eaee7eb2c5/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 [2018-11-23 04:35:07,854 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:35:07,855 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21c69269-c9dc-46dc-bd2f-06eaee7eb2c5/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 [2018-11-23 04:35:07,870 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 04:35:07,870 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:35:07,886 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 04:35:07,887 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:35:07,887 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:35:07,887 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:35:07,887 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:35:07,888 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 04:35:07,888 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:35:07,888 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:35:07,888 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:35:07,888 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration3_Loop [2018-11-23 04:35:07,888 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:35:07,888 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:35:07,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:35:07,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:35:07,941 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:35:07,941 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 04:35:07,941 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 [2018-11-23 04:35:07,942 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:35:07,942 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:35:07,942 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:35:07,942 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:35:07,942 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:35:07,943 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 04:35:07,943 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:35:07,945 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 04:35:07,945 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 [2018-11-23 04:35:07,946 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:35:07,946 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:35:07,946 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:35:07,946 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:35:07,946 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:35:07,947 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 04:35:07,947 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:35:07,949 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 04:35:07,951 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 04:35:07,951 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 04:35:07,951 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 04:35:07,951 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 04:35:07,951 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 04:35:07,951 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2018-11-23 04:35:07,952 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 04:35:07,974 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:35:07,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:35:07,979 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:35:07,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:35:07,981 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:35:07,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:35:08,000 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 [2018-11-23 04:35:08,000 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 12 Second operand 4 states. [2018-11-23 04:35:08,009 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. [2018-11-23 04:35:08,011 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 [2018-11-23 04:35:08,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 04:35:08,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2018-11-23 04:35:08,012 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-23 04:35:08,012 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:35:08,012 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-23 04:35:08,012 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:35:08,013 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-23 04:35:08,013 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:35:08,013 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 55 transitions. [2018-11-23 04:35:08,014 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2018-11-23 04:35:08,014 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 41 states and 51 transitions. [2018-11-23 04:35:08,014 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2018-11-23 04:35:08,014 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2018-11-23 04:35:08,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 51 transitions. [2018-11-23 04:35:08,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 04:35:08,015 INFO L705 BuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2018-11-23 04:35:08,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 51 transitions. [2018-11-23 04:35:08,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 29. [2018-11-23 04:35:08,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-23 04:35:08,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2018-11-23 04:35:08,017 INFO L728 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2018-11-23 04:35:08,017 INFO L608 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2018-11-23 04:35:08,017 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-23 04:35:08,017 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 38 transitions. [2018-11-23 04:35:08,017 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-23 04:35:08,018 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 04:35:08,018 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 04:35:08,018 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:35:08,018 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 04:35:08,018 INFO L794 eck$LassoCheckResult]: Stem: 702#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_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~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_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 699#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 688#L69 base2flt_#res := base2flt_~__retres4~0; 689#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; 695#L19-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 690#L69-1 base2flt_#res := base2flt_~__retres4~0; 686#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; 687#L19-2 assume !(0 == base2flt_~m % 4294967296); 696#L25-2 assume !(base2flt_~m % 4294967296 < 16777216); 683#L47-8 [2018-11-23 04:35:08,018 INFO L796 eck$LassoCheckResult]: Loop: 683#L47-8 assume !false; 697#L48-2 assume base2flt_~m % 4294967296 >= 33554432; 682#L49-2 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 683#L47-8 [2018-11-23 04:35:08,019 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:35:08,019 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951196, now seen corresponding path program 1 times [2018-11-23 04:35:08,019 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:35:08,019 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:35:08,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:35:08,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:35:08,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:35:08,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:35:08,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:35:08,032 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:35:08,032 INFO L82 PathProgramCache]: Analyzing trace with hash 198737, now seen corresponding path program 1 times [2018-11-23 04:35:08,032 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:35:08,032 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:35:08,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:35:08,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:35:08,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:35:08,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:35:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:35:08,039 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:35:08,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1766695638, now seen corresponding path program 1 times [2018-11-23 04:35:08,039 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:35:08,039 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:35:08,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:35:08,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:35:08,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:35:08,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:35:08,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:35:08,082 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:35:08,082 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:35:08,082 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:35:08,082 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:35:08,082 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 04:35:08,082 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:35:08,082 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:35:08,083 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:35:08,083 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration4_Loop [2018-11-23 04:35:08,083 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:35:08,083 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:35:08,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:35:08,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:35:08,170 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:35:08,171 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21c69269-c9dc-46dc-bd2f-06eaee7eb2c5/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 [2018-11-23 04:35:08,197 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:35:08,197 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21c69269-c9dc-46dc-bd2f-06eaee7eb2c5/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 [2018-11-23 04:35:08,231 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 04:35:08,231 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:35:08,256 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 04:35:08,257 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:35:08,257 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:35:08,257 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:35:08,257 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:35:08,257 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 04:35:08,257 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:35:08,257 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:35:08,257 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:35:08,257 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration4_Loop [2018-11-23 04:35:08,258 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:35:08,258 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:35:08,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:35:08,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:35:08,312 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:35:08,312 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 04:35:08,312 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 [2018-11-23 04:35:08,313 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:35:08,313 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:35:08,313 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:35:08,314 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:35:08,314 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:35:08,314 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 04:35:08,315 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:35:08,316 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 04:35:08,317 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 04:35:08,317 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 04:35:08,318 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 04:35:08,318 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 04:35:08,318 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 04:35:08,318 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2018-11-23 04:35:08,318 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 04:35:08,332 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:35:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:35:08,342 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:35:08,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:35:08,345 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:35:08,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:35:08,346 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 [2018-11-23 04:35:08,346 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 13 Second operand 3 states. [2018-11-23 04:35:08,352 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. [2018-11-23 04:35:08,353 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 [2018-11-23 04:35:08,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 04:35:08,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2018-11-23 04:35:08,353 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-23 04:35:08,353 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:35:08,353 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-23 04:35:08,354 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:35:08,354 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 6 letters. [2018-11-23 04:35:08,354 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:35:08,354 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2018-11-23 04:35:08,354 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 04:35:08,355 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 34 transitions. [2018-11-23 04:35:08,355 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2018-11-23 04:35:08,355 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2018-11-23 04:35:08,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 34 transitions. [2018-11-23 04:35:08,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 04:35:08,355 INFO L705 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2018-11-23 04:35:08,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 34 transitions. [2018-11-23 04:35:08,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-11-23 04:35:08,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-23 04:35:08,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2018-11-23 04:35:08,356 INFO L728 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2018-11-23 04:35:08,357 INFO L608 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2018-11-23 04:35:08,357 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-23 04:35:08,357 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2018-11-23 04:35:08,357 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 04:35:08,357 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 04:35:08,357 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 04:35:08,357 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:35:08,357 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 04:35:08,358 INFO L794 eck$LassoCheckResult]: Stem: 815#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_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~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_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 812#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 800#L69 base2flt_#res := base2flt_~__retres4~0; 801#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; 809#L19-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 804#L69-1 base2flt_#res := base2flt_~__retres4~0; 802#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; 803#L19-2 assume !(0 == base2flt_~m % 4294967296); 810#L25-2 assume base2flt_~m % 4294967296 < 16777216; 814#L37-5 [2018-11-23 04:35:08,358 INFO L796 eck$LassoCheckResult]: Loop: 814#L37-5 assume !false; 798#L28-2 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 799#L37-4 assume base2flt_~m % 4294967296 < 16777216; 814#L37-5 [2018-11-23 04:35:08,358 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:35:08,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951170, now seen corresponding path program 1 times [2018-11-23 04:35:08,358 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:35:08,358 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:35:08,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:35:08,359 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:35:08,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:35:08,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:35:08,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:35:08,368 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:35:08,368 INFO L82 PathProgramCache]: Analyzing trace with hash 172978, now seen corresponding path program 1 times [2018-11-23 04:35:08,368 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:35:08,369 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:35:08,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:35:08,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:35:08,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:35:08,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:35:08,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:35:08,372 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:35:08,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1765895313, now seen corresponding path program 1 times [2018-11-23 04:35:08,373 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:35:08,373 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:35:08,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:35:08,373 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:35:08,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:35:08,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:35:08,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:35:08,405 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:35:08,405 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:35:08,405 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:35:08,405 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:35:08,405 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 04:35:08,405 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:35:08,406 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:35:08,406 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:35:08,406 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration5_Loop [2018-11-23 04:35:08,406 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:35:08,406 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:35:08,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:35:08,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:35:08,445 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:35:08,445 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21c69269-c9dc-46dc-bd2f-06eaee7eb2c5/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 [2018-11-23 04:35:08,447 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:35:08,447 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21c69269-c9dc-46dc-bd2f-06eaee7eb2c5/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 [2018-11-23 04:35:08,463 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 04:35:08,463 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:35:08,478 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 04:35:08,479 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:35:08,479 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:35:08,480 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:35:08,480 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:35:08,480 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 04:35:08,480 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:35:08,480 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:35:08,480 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:35:08,480 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration5_Loop [2018-11-23 04:35:08,480 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:35:08,480 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:35:08,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:35:08,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:35:08,516 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:35:08,516 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 04:35:08,517 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 [2018-11-23 04:35:08,517 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:35:08,517 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:35:08,517 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:35:08,517 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:35:08,518 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:35:08,518 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 04:35:08,518 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:35:08,520 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 04:35:08,521 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 04:35:08,521 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 04:35:08,522 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 04:35:08,522 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 04:35:08,522 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 04:35:08,522 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2018-11-23 04:35:08,522 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 04:35:08,532 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:35:08,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:35:08,539 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:35:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:35:08,542 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:35:08,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:35:08,552 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 [2018-11-23 04:35:08,552 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 11 Second operand 4 states. [2018-11-23 04:35:08,557 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. [2018-11-23 04:35:08,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 04:35:08,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 04:35:08,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2018-11-23 04:35:08,557 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-23 04:35:08,557 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:35:08,557 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-23 04:35:08,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:35:08,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 6 letters. [2018-11-23 04:35:08,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:35:08,558 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 38 transitions. [2018-11-23 04:35:08,558 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 04:35:08,558 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2018-11-23 04:35:08,558 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 04:35:08,558 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 04:35:08,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 04:35:08,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 04:35:08,558 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 04:35:08,558 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 04:35:08,558 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 04:35:08,558 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-23 04:35:08,559 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 04:35:08,559 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 04:35:08,559 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 04:35:08,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 04:35:08 BoogieIcfgContainer [2018-11-23 04:35:08,562 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 04:35:08,563 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 04:35:08,563 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 04:35:08,563 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 04:35:08,563 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:35:06" (3/4) ... [2018-11-23 04:35:08,566 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 04:35:08,566 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 04:35:08,566 INFO L168 Benchmark]: Toolchain (without parser) took 2485.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 959.2 MB in the beginning and 1.0 GB in the end (delta: -86.2 MB). Peak memory consumption was 44.9 MB. Max. memory is 11.5 GB. [2018-11-23 04:35:08,567 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:35:08,568 INFO L168 Benchmark]: CACSL2BoogieTranslator took 202.19 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 943.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-23 04:35:08,568 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -185.3 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-23 04:35:08,568 INFO L168 Benchmark]: Boogie Preprocessor took 21.28 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 04:35:08,569 INFO L168 Benchmark]: RCFGBuilder took 349.75 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: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 11.5 GB. [2018-11-23 04:35:08,569 INFO L168 Benchmark]: BuchiAutomizer took 1842.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 48.8 MB). Peak memory consumption was 48.8 MB. Max. memory is 11.5 GB. [2018-11-23 04:35:08,569 INFO L168 Benchmark]: Witness Printer took 3.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:35:08,571 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 202.19 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 943.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 63.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -185.3 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.28 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 349.75 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: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1842.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 48.8 MB). Peak memory consumption was 48.8 MB. Max. memory is 11.5 GB. * Witness Printer took 3.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 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 1.8s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 34 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 29 states and ocurred in iteration 3. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 272 SDtfs, 240 SDslu, 26 SDs, 0 SdLazy, 38 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf95 lsp57 ukn100 mio100 lsp100 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...