./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_5_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_9db44a44-89aa-4e37-b652-e203f0a1a82a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9db44a44-89aa-4e37-b652-e203f0a1a82a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9db44a44-89aa-4e37-b652-e203f0a1a82a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9db44a44-89aa-4e37-b652-e203f0a1a82a/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_5_true-unreach-call_true-no-overflow_true-termination.c.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9db44a44-89aa-4e37-b652-e203f0a1a82a/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9db44a44-89aa-4e37-b652-e203f0a1a82a/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 12b1dd0058eac32d4e9fcabcf1e935c527e522e6 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 04:51:49,475 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 04:51:49,477 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 04:51:49,486 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 04:51:49,486 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 04:51:49,487 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 04:51:49,488 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 04:51:49,489 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 04:51:49,490 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 04:51:49,491 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 04:51:49,492 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 04:51:49,492 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 04:51:49,493 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 04:51:49,494 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 04:51:49,494 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 04:51:49,495 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 04:51:49,496 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 04:51:49,497 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 04:51:49,499 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 04:51:49,500 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 04:51:49,501 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 04:51:49,502 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 04:51:49,504 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 04:51:49,504 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 04:51:49,504 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 04:51:49,505 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 04:51:49,506 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 04:51:49,507 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 04:51:49,507 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 04:51:49,508 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 04:51:49,508 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 04:51:49,509 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 04:51:49,509 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 04:51:49,509 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 04:51:49,510 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 04:51:49,511 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 04:51:49,511 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9db44a44-89aa-4e37-b652-e203f0a1a82a/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-23 04:51:49,523 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 04:51:49,523 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 04:51:49,524 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 04:51:49,525 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 04:51:49,525 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 04:51:49,525 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 04:51:49,525 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 04:51:49,525 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 04:51:49,525 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 04:51:49,525 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 04:51:49,526 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 04:51:49,526 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 04:51:49,526 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 04:51:49,526 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 04:51:49,526 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 04:51:49,526 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 04:51:49,526 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 04:51:49,526 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 04:51:49,527 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 04:51:49,527 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 04:51:49,527 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 04:51:49,527 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 04:51:49,527 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 04:51:49,527 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 04:51:49,527 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 04:51:49,527 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 04:51:49,528 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 04:51:49,528 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 04:51:49,528 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 04:51:49,528 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 04:51:49,528 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 04:51:49,529 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 04:51:49,529 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_9db44a44-89aa-4e37-b652-e203f0a1a82a/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 -> 12b1dd0058eac32d4e9fcabcf1e935c527e522e6 [2018-11-23 04:51:49,555 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 04:51:49,565 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 04:51:49,567 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 04:51:49,568 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 04:51:49,568 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 04:51:49,568 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9db44a44-89aa-4e37-b652-e203f0a1a82a/bin-2019/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_5_true-unreach-call_true-no-overflow_true-termination.c.cil.c [2018-11-23 04:51:49,609 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9db44a44-89aa-4e37-b652-e203f0a1a82a/bin-2019/uautomizer/data/d0e9a4d6d/5d05f312832e4948a810022031e434a3/FLAG446848625 [2018-11-23 04:51:49,953 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 04:51:49,954 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9db44a44-89aa-4e37-b652-e203f0a1a82a/sv-benchmarks/c/bitvector/soft_float_5_true-unreach-call_true-no-overflow_true-termination.c.cil.c [2018-11-23 04:51:49,960 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9db44a44-89aa-4e37-b652-e203f0a1a82a/bin-2019/uautomizer/data/d0e9a4d6d/5d05f312832e4948a810022031e434a3/FLAG446848625 [2018-11-23 04:51:50,371 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9db44a44-89aa-4e37-b652-e203f0a1a82a/bin-2019/uautomizer/data/d0e9a4d6d/5d05f312832e4948a810022031e434a3 [2018-11-23 04:51:50,374 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 04:51:50,375 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 04:51:50,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 04:51:50,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 04:51:50,378 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 04:51:50,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:51:50" (1/1) ... [2018-11-23 04:51:50,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@548675f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:50, skipping insertion in model container [2018-11-23 04:51:50,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:51:50" (1/1) ... [2018-11-23 04:51:50,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 04:51:50,410 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 04:51:50,570 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:51:50,573 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 04:51:50,603 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:51:50,613 INFO L195 MainTranslator]: Completed translation [2018-11-23 04:51:50,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:50 WrapperNode [2018-11-23 04:51:50,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 04:51:50,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 04:51:50,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 04:51:50,614 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 04:51:50,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:50" (1/1) ... [2018-11-23 04:51:50,626 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:50" (1/1) ... [2018-11-23 04:51:50,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 04:51:50,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 04:51:50,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 04:51:50,654 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 04:51:50,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:50" (1/1) ... [2018-11-23 04:51:50,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:50" (1/1) ... [2018-11-23 04:51:50,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:50" (1/1) ... [2018-11-23 04:51:50,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:50" (1/1) ... [2018-11-23 04:51:50,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:50" (1/1) ... [2018-11-23 04:51:50,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:50" (1/1) ... [2018-11-23 04:51:50,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:50" (1/1) ... [2018-11-23 04:51:50,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 04:51:50,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 04:51:50,723 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 04:51:50,723 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 04:51:50,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9db44a44-89aa-4e37-b652-e203f0a1a82a/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 04:51:50,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 04:51:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 04:51:51,079 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 04:51:51,079 INFO L280 CfgBuilder]: Removed 24 assue(true) statements. [2018-11-23 04:51:51,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:51:51 BoogieIcfgContainer [2018-11-23 04:51:51,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 04:51:51,080 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 04:51:51,080 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 04:51:51,083 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 04:51:51,084 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 04:51:51,084 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 04:51:50" (1/3) ... [2018-11-23 04:51:51,085 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@379e6217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 04:51:51, skipping insertion in model container [2018-11-23 04:51:51,085 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 04:51:51,085 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:50" (2/3) ... [2018-11-23 04:51:51,086 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@379e6217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 04:51:51, skipping insertion in model container [2018-11-23 04:51:51,086 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 04:51:51,086 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:51:51" (3/3) ... [2018-11-23 04:51:51,087 INFO L375 chiAutomizerObserver]: Analyzing ICFG soft_float_5_true-unreach-call_true-no-overflow_true-termination.c.cil.c [2018-11-23 04:51:51,127 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 04:51:51,128 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 04:51:51,128 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 04:51:51,128 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 04:51:51,128 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 04:51:51,128 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 04:51:51,128 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 04:51:51,128 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 04:51:51,129 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 04:51:51,140 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 70 states. [2018-11-23 04:51:51,158 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2018-11-23 04:51:51,158 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 04:51:51,158 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 04:51:51,163 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-23 04:51:51,164 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 04:51:51,164 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 04:51:51,164 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 70 states. [2018-11-23 04:51:51,167 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2018-11-23 04:51:51,167 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 04:51:51,167 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 04:51:51,168 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-23 04:51:51,168 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 04:51:51,173 INFO L794 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 30#L19true assume !(0 == base2flt_~m % 4294967296); 17#L25true assume !(base2flt_~m % 4294967296 < 16777216); 13#L47-2true [2018-11-23 04:51:51,174 INFO L796 eck$LassoCheckResult]: Loop: 13#L47-2true assume !false; 22#L48true assume base2flt_~m % 4294967296 >= 33554432; 47#L49true assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 13#L47-2true [2018-11-23 04:51:51,178 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:51:51,178 INFO L82 PathProgramCache]: Analyzing trace with hash 30973, now seen corresponding path program 1 times [2018-11-23 04:51:51,180 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:51:51,180 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:51:51,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:51,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:51:51,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:51,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:51:51,308 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 04:51:51,310 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:51:51,310 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-11-23 04:51:51,313 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-23 04:51:51,314 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:51:51,314 INFO L82 PathProgramCache]: Analyzing trace with hash 73619, now seen corresponding path program 1 times [2018-11-23 04:51:51,314 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:51:51,314 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:51:51,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:51,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:51:51,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:51:51,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:51:51,374 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:51:51,375 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:51:51,375 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:51:51,375 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:51:51,375 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 04:51:51,375 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:51:51,375 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:51:51,375 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:51:51,376 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_5_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration1_Loop [2018-11-23 04:51:51,376 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:51:51,376 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:51:51,392 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 04:51:51,431 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 04:51:51,531 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:51:51,532 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9db44a44-89aa-4e37-b652-e203f0a1a82a/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 04:51:51,537 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:51:51,537 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:51:51,566 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 04:51:51,566 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_9db44a44-89aa-4e37-b652-e203f0a1a82a/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 04:51:51,584 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:51:51,584 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9db44a44-89aa-4e37-b652-e203f0a1a82a/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 04:51:51,604 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 04:51:51,604 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:51:51,626 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 04:51:51,627 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:51:51,627 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:51:51,627 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:51:51,627 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:51:51,627 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 04:51:51,627 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:51:51,627 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:51:51,628 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:51:51,628 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_5_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration1_Loop [2018-11-23 04:51:51,628 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:51:51,628 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:51:51,629 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 04:51:51,634 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 04:51:51,694 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:51:51,698 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 04:51:51,699 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 04:51:51,700 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:51:51,700 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:51:51,701 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:51:51,701 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:51:51,701 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:51:51,703 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 04:51:51,703 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:51:51,712 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 04:51:51,713 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 04:51:51,713 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:51:51,713 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:51:51,713 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:51:51,714 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:51:51,714 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:51:51,714 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 04:51:51,714 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:51:51,718 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 04:51:51,722 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 04:51:51,723 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 04:51:51,724 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 04:51:51,724 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 04:51:51,724 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 04:51:51,724 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 04:51:51,725 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 04:51:51,751 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:51:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:51:51,760 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:51:51,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:51:51,769 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:51:51,770 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 04:51:51,781 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 04:51:51,782 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 70 states. Second operand 3 states. [2018-11-23 04:51:51,848 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 70 states.. Second operand 3 states. Result 203 states and 343 transitions. Complement of second has 6 states. [2018-11-23 04:51:51,849 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 04:51:51,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 04:51:51,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 227 transitions. [2018-11-23 04:51:51,854 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 227 transitions. Stem has 3 letters. Loop has 3 letters. [2018-11-23 04:51:51,855 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:51:51,855 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 227 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-23 04:51:51,855 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:51:51,855 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 227 transitions. Stem has 3 letters. Loop has 6 letters. [2018-11-23 04:51:51,856 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:51:51,857 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 203 states and 343 transitions. [2018-11-23 04:51:51,865 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 39 [2018-11-23 04:51:51,871 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 203 states to 78 states and 119 transitions. [2018-11-23 04:51:51,872 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 74 [2018-11-23 04:51:51,872 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 75 [2018-11-23 04:51:51,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 78 states and 119 transitions. [2018-11-23 04:51:51,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 04:51:51,873 INFO L705 BuchiCegarLoop]: Abstraction has 78 states and 119 transitions. [2018-11-23 04:51:51,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states and 119 transitions. [2018-11-23 04:51:51,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 67. [2018-11-23 04:51:51,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-11-23 04:51:51,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 107 transitions. [2018-11-23 04:51:51,897 INFO L728 BuchiCegarLoop]: Abstraction has 67 states and 107 transitions. [2018-11-23 04:51:51,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 04:51:51,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 04:51:51,900 INFO L87 Difference]: Start difference. First operand 67 states and 107 transitions. Second operand 3 states. [2018-11-23 04:51:51,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:51:51,941 INFO L93 Difference]: Finished difference Result 34 states and 47 transitions. [2018-11-23 04:51:51,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 04:51:51,941 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 47 transitions. [2018-11-23 04:51:51,942 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2018-11-23 04:51:51,943 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 34 states and 47 transitions. [2018-11-23 04:51:51,943 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2018-11-23 04:51:51,943 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2018-11-23 04:51:51,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 47 transitions. [2018-11-23 04:51:51,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 04:51:51,944 INFO L705 BuchiCegarLoop]: Abstraction has 34 states and 47 transitions. [2018-11-23 04:51:51,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 47 transitions. [2018-11-23 04:51:51,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-23 04:51:51,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-23 04:51:51,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 47 transitions. [2018-11-23 04:51:51,947 INFO L728 BuchiCegarLoop]: Abstraction has 34 states and 47 transitions. [2018-11-23 04:51:51,947 INFO L608 BuchiCegarLoop]: Abstraction has 34 states and 47 transitions. [2018-11-23 04:51:51,947 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 04:51:51,947 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 47 transitions. [2018-11-23 04:51:51,948 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2018-11-23 04:51:51,948 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 04:51:51,948 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 04:51:51,948 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-23 04:51:51,948 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 04:51:51,949 INFO L794 eck$LassoCheckResult]: Stem: 447#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;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_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;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; 445#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 418#L69 base2flt_#res := base2flt_~__retres4~0; 419#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := 1, 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; 442#L19-1 assume !(0 == base2flt_~m % 4294967296); 430#L25-1 assume !(base2flt_~m % 4294967296 < 16777216); 422#L47-5 [2018-11-23 04:51:51,949 INFO L796 eck$LassoCheckResult]: Loop: 422#L47-5 assume !false; 425#L48-1 assume base2flt_~m % 4294967296 >= 33554432; 420#L49-1 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 422#L47-5 [2018-11-23 04:51:51,949 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:51:51,949 INFO L82 PathProgramCache]: Analyzing trace with hash 921737699, now seen corresponding path program 1 times [2018-11-23 04:51:51,949 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:51:51,949 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:51:51,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:51,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:51:51,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:51,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:51:51,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:51:51,992 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:51:51,992 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 04:51:51,993 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-23 04:51:51,993 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:51:51,993 INFO L82 PathProgramCache]: Analyzing trace with hash 136178, now seen corresponding path program 1 times [2018-11-23 04:51:51,993 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:51:51,993 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:51:51,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:51,994 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:51:51,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:51:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:51:52,035 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:51:52,036 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:51:52,036 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:51:52,036 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:51:52,036 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 04:51:52,036 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:51:52,036 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:51:52,036 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:51:52,036 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_5_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration2_Loop [2018-11-23 04:51:52,037 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:51:52,037 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:51:52,038 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 04:51:52,058 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 04:51:52,181 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:51:52,181 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9db44a44-89aa-4e37-b652-e203f0a1a82a/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 04:51:52,187 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:51:52,187 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:51:52,212 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 04:51:52,212 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_9db44a44-89aa-4e37-b652-e203f0a1a82a/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 04:51:52,232 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:51:52,232 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9db44a44-89aa-4e37-b652-e203f0a1a82a/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 04:51:52,261 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 04:51:52,262 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:51:52,294 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 04:51:52,295 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:51:52,296 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:51:52,296 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:51:52,296 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:51:52,296 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 04:51:52,296 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:51:52,297 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:51:52,297 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:51:52,297 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_5_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration2_Loop [2018-11-23 04:51:52,297 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:51:52,298 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:51:52,299 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 04:51:52,312 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 04:51:52,373 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:51:52,373 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 04:51:52,374 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 04:51:52,375 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:51:52,375 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:51:52,375 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:51:52,375 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:51:52,375 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:51:52,376 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 04:51:52,376 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:51:52,383 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 04:51:52,384 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 04:51:52,384 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:51:52,384 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:51:52,385 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:51:52,386 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:51:52,386 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:51:52,387 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 04:51:52,387 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:51:52,389 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 04:51:52,391 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 04:51:52,391 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 04:51:52,392 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 04:51:52,392 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 04:51:52,392 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 04:51:52,392 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 04:51:52,392 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 04:51:52,413 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:51:52,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:51:52,420 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:51:52,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:51:52,424 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:51:52,424 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 04:51:52,425 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 04:51:52,425 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34 states and 47 transitions. cyclomatic complexity: 19 Second operand 3 states. [2018-11-23 04:51:52,446 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34 states and 47 transitions. cyclomatic complexity: 19. Second operand 3 states. Result 62 states and 84 transitions. Complement of second has 5 states. [2018-11-23 04:51:52,447 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 04:51:52,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 04:51:52,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 49 transitions. [2018-11-23 04:51:52,448 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 49 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-23 04:51:52,448 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:51:52,449 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 49 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-23 04:51:52,449 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:51:52,449 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 49 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-23 04:51:52,449 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:51:52,449 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 84 transitions. [2018-11-23 04:51:52,451 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2018-11-23 04:51:52,451 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 59 states and 80 transitions. [2018-11-23 04:51:52,452 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 55 [2018-11-23 04:51:52,452 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 56 [2018-11-23 04:51:52,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 80 transitions. [2018-11-23 04:51:52,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 04:51:52,452 INFO L705 BuchiCegarLoop]: Abstraction has 59 states and 80 transitions. [2018-11-23 04:51:52,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states and 80 transitions. [2018-11-23 04:51:52,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 37. [2018-11-23 04:51:52,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-23 04:51:52,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2018-11-23 04:51:52,455 INFO L728 BuchiCegarLoop]: Abstraction has 37 states and 51 transitions. [2018-11-23 04:51:52,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 04:51:52,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 04:51:52,456 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand 3 states. [2018-11-23 04:51:52,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:51:52,493 INFO L93 Difference]: Finished difference Result 35 states and 46 transitions. [2018-11-23 04:51:52,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 04:51:52,494 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 46 transitions. [2018-11-23 04:51:52,495 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2018-11-23 04:51:52,495 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 35 states and 46 transitions. [2018-11-23 04:51:52,495 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2018-11-23 04:51:52,495 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2018-11-23 04:51:52,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 46 transitions. [2018-11-23 04:51:52,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 04:51:52,496 INFO L705 BuchiCegarLoop]: Abstraction has 35 states and 46 transitions. [2018-11-23 04:51:52,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 46 transitions. [2018-11-23 04:51:52,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2018-11-23 04:51:52,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-23 04:51:52,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 41 transitions. [2018-11-23 04:51:52,498 INFO L728 BuchiCegarLoop]: Abstraction has 31 states and 41 transitions. [2018-11-23 04:51:52,498 INFO L608 BuchiCegarLoop]: Abstraction has 31 states and 41 transitions. [2018-11-23 04:51:52,498 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-23 04:51:52,498 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 41 transitions. [2018-11-23 04:51:52,499 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2018-11-23 04:51:52,499 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 04:51:52,499 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 04:51:52,500 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-23 04:51:52,500 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 04:51:52,500 INFO L794 eck$LassoCheckResult]: Stem: 658#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 655#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 632#L69 base2flt_#res := base2flt_~__retres4~0; 633#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 652#L19-1 assume !(0 == base2flt_~m % 4294967296); 640#L25-1 assume base2flt_~m % 4294967296 < 16777216; 641#L37-3 [2018-11-23 04:51:52,500 INFO L796 eck$LassoCheckResult]: Loop: 641#L37-3 assume !false; 650#L28-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 651#L37-2 assume base2flt_~m % 4294967296 < 16777216; 641#L37-3 [2018-11-23 04:51:52,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:51:52,500 INFO L82 PathProgramCache]: Analyzing trace with hash 921737673, now seen corresponding path program 1 times [2018-11-23 04:51:52,501 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:51:52,501 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:51:52,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:52,502 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:51:52,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:52,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:51:52,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:51:52,513 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:51:52,513 INFO L82 PathProgramCache]: Analyzing trace with hash 110419, now seen corresponding path program 1 times [2018-11-23 04:51:52,513 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:51:52,513 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:51:52,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:52,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:51:52,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:52,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:51:52,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:51:52,519 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:51:52,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1761173643, now seen corresponding path program 1 times [2018-11-23 04:51:52,519 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:51:52,519 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:51:52,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:52,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:51:52,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:52,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:51:52,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:51:52,558 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:51:52,558 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:51:52,558 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:51:52,558 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:51:52,558 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 04:51:52,559 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:51:52,559 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:51:52,559 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:51:52,559 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_5_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration3_Loop [2018-11-23 04:51:52,559 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:51:52,559 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:51:52,560 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 04:51:52,566 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 04:51:52,626 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:51:52,626 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9db44a44-89aa-4e37-b652-e203f0a1a82a/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 04:51:52,632 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:51:52,632 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:51:52,641 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 04:51:52,641 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_9db44a44-89aa-4e37-b652-e203f0a1a82a/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 04:51:52,660 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:51:52,660 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9db44a44-89aa-4e37-b652-e203f0a1a82a/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 04:51:52,681 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 04:51:52,681 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:51:52,702 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 04:51:52,703 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:51:52,703 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:51:52,703 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:51:52,703 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:51:52,704 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 04:51:52,704 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:51:52,704 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:51:52,704 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:51:52,704 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_5_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration3_Loop [2018-11-23 04:51:52,704 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:51:52,704 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:51:52,706 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 04:51:52,714 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 04:51:52,759 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:51:52,759 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 04:51:52,759 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 04:51:52,760 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:51:52,760 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:51:52,761 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:51:52,761 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:51:52,761 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:51:52,762 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 04:51:52,762 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:51:52,764 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 04:51:52,764 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 04:51:52,765 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:51:52,765 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:51:52,765 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:51:52,765 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:51:52,765 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:51:52,766 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 04:51:52,766 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:51:52,768 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 04:51:52,770 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 04:51:52,770 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 04:51:52,771 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 04:51:52,771 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 04:51:52,771 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 04:51:52,771 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 04:51:52,772 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 04:51:52,788 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:51:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:51:52,801 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:51:52,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:51:52,805 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:51:52,832 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 04:51:52,832 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 04:51:52,832 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 41 transitions. cyclomatic complexity: 15 Second operand 4 states. [2018-11-23 04:51:52,842 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 41 transitions. cyclomatic complexity: 15. Second operand 4 states. Result 59 states and 78 transitions. Complement of second has 5 states. [2018-11-23 04:51:52,842 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 04:51:52,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 04:51:52,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2018-11-23 04:51:52,843 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-23 04:51:52,843 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:51:52,843 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-23 04:51:52,843 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:51:52,843 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-23 04:51:52,844 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:51:52,844 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 78 transitions. [2018-11-23 04:51:52,844 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2018-11-23 04:51:52,845 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 56 states and 74 transitions. [2018-11-23 04:51:52,845 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 50 [2018-11-23 04:51:52,845 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2018-11-23 04:51:52,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 74 transitions. [2018-11-23 04:51:52,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 04:51:52,845 INFO L705 BuchiCegarLoop]: Abstraction has 56 states and 74 transitions. [2018-11-23 04:51:52,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 74 transitions. [2018-11-23 04:51:52,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 34. [2018-11-23 04:51:52,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-23 04:51:52,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2018-11-23 04:51:52,848 INFO L728 BuchiCegarLoop]: Abstraction has 34 states and 45 transitions. [2018-11-23 04:51:52,848 INFO L608 BuchiCegarLoop]: Abstraction has 34 states and 45 transitions. [2018-11-23 04:51:52,848 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-23 04:51:52,848 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 45 transitions. [2018-11-23 04:51:52,849 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2018-11-23 04:51:52,849 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 04:51:52,849 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 04:51:52,849 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:51:52,849 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 04:51:52,849 INFO L794 eck$LassoCheckResult]: Stem: 797#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;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_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;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; 794#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 770#L69 base2flt_#res := base2flt_~__retres4~0; 771#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := 1, 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; 791#L19-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 782#L69-1 base2flt_#res := base2flt_~__retres4~0; 783#L70-1 main_#t~ret5 := base2flt_#res;main_~one~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 786#L19-2 assume !(0 == base2flt_~m % 4294967296); 776#L25-2 assume !(base2flt_~m % 4294967296 < 16777216); 769#L47-8 [2018-11-23 04:51:52,850 INFO L796 eck$LassoCheckResult]: Loop: 769#L47-8 assume !false; 792#L48-2 assume base2flt_~m % 4294967296 >= 33554432; 767#L49-2 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 769#L47-8 [2018-11-23 04:51:52,850 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:51:52,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951196, now seen corresponding path program 1 times [2018-11-23 04:51:52,850 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:51:52,850 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:51:52,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:52,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:51:52,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:52,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:51:52,884 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 04:51:52,884 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:51:52,884 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 04:51:52,885 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-23 04:51:52,885 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:51:52,885 INFO L82 PathProgramCache]: Analyzing trace with hash 198737, now seen corresponding path program 1 times [2018-11-23 04:51:52,885 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:51:52,885 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:51:52,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:52,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:51:52,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:51:52,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:51:52,906 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:51:52,906 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:51:52,907 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:51:52,907 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:51:52,907 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 04:51:52,907 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:51:52,907 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:51:52,907 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:51:52,907 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_5_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration4_Loop [2018-11-23 04:51:52,907 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:51:52,907 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:51:52,908 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 04:51:52,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:51:52,980 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:51:52,980 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9db44a44-89aa-4e37-b652-e203f0a1a82a/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 04:51:52,987 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:51:52,987 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9db44a44-89aa-4e37-b652-e203f0a1a82a/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 04:51:53,008 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 04:51:53,008 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:51:53,027 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 04:51:53,028 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:51:53,028 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:51:53,028 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:51:53,029 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:51:53,029 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 04:51:53,029 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:51:53,029 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:51:53,029 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:51:53,029 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_5_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration4_Loop [2018-11-23 04:51:53,029 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:51:53,029 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:51:53,030 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 04:51:53,035 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 04:51:53,086 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:51:53,086 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 04:51:53,086 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 04:51:53,087 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:51:53,087 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:51:53,087 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:51:53,087 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:51:53,087 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:51:53,088 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 04:51:53,088 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:51:53,090 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 04:51:53,091 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 04:51:53,091 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 04:51:53,091 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 04:51:53,092 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 04:51:53,092 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 04:51:53,092 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 04:51:53,092 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 04:51:53,107 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:51:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:51:53,115 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:51:53,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:51:53,119 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:51:53,120 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 04:51:53,120 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 04:51:53,120 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34 states and 45 transitions. cyclomatic complexity: 16 Second operand 3 states. [2018-11-23 04:51:53,133 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34 states and 45 transitions. cyclomatic complexity: 16. Second operand 3 states. Result 51 states and 65 transitions. Complement of second has 5 states. [2018-11-23 04:51:53,133 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 04:51:53,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 04:51:53,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2018-11-23 04:51:53,134 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-23 04:51:53,134 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:51:53,134 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-23 04:51:53,134 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:51:53,134 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 9 letters. Loop has 6 letters. [2018-11-23 04:51:53,135 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:51:53,135 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 65 transitions. [2018-11-23 04:51:53,136 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2018-11-23 04:51:53,136 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 48 states and 61 transitions. [2018-11-23 04:51:53,136 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2018-11-23 04:51:53,137 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2018-11-23 04:51:53,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 61 transitions. [2018-11-23 04:51:53,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 04:51:53,137 INFO L705 BuchiCegarLoop]: Abstraction has 48 states and 61 transitions. [2018-11-23 04:51:53,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 61 transitions. [2018-11-23 04:51:53,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 37. [2018-11-23 04:51:53,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-23 04:51:53,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 49 transitions. [2018-11-23 04:51:53,140 INFO L728 BuchiCegarLoop]: Abstraction has 37 states and 49 transitions. [2018-11-23 04:51:53,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 04:51:53,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 04:51:53,140 INFO L87 Difference]: Start difference. First operand 37 states and 49 transitions. Second operand 3 states. [2018-11-23 04:51:53,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:51:53,170 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2018-11-23 04:51:53,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 04:51:53,171 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 52 transitions. [2018-11-23 04:51:53,172 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2018-11-23 04:51:53,172 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 41 states and 52 transitions. [2018-11-23 04:51:53,172 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2018-11-23 04:51:53,172 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2018-11-23 04:51:53,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 52 transitions. [2018-11-23 04:51:53,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 04:51:53,173 INFO L705 BuchiCegarLoop]: Abstraction has 41 states and 52 transitions. [2018-11-23 04:51:53,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 52 transitions. [2018-11-23 04:51:53,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 37. [2018-11-23 04:51:53,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-23 04:51:53,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2018-11-23 04:51:53,175 INFO L728 BuchiCegarLoop]: Abstraction has 37 states and 48 transitions. [2018-11-23 04:51:53,175 INFO L608 BuchiCegarLoop]: Abstraction has 37 states and 48 transitions. [2018-11-23 04:51:53,175 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-23 04:51:53,175 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 48 transitions. [2018-11-23 04:51:53,176 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2018-11-23 04:51:53,176 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 04:51:53,176 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 04:51:53,176 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:51:53,177 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 04:51:53,177 INFO L794 eck$LassoCheckResult]: Stem: 1018#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;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_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;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; 1015#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 989#L69 base2flt_#res := base2flt_~__retres4~0; 990#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := 1, 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; 1011#L19-1 assume !(0 == base2flt_~m % 4294967296); 998#L25-1 assume base2flt_~m % 4294967296 < 16777216; 999#L37-3 assume !false; 1008#L28-1 assume base2flt_~e <= -128;base2flt_~__retres4~0 := 0; 1002#L69-1 base2flt_#res := base2flt_~__retres4~0; 1003#L70-1 main_#t~ret5 := base2flt_#res;main_~one~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1006#L19-2 assume !(0 == base2flt_~m % 4294967296); 995#L25-2 assume base2flt_~m % 4294967296 < 16777216; 997#L37-5 [2018-11-23 04:51:53,177 INFO L796 eck$LassoCheckResult]: Loop: 997#L37-5 assume !false; 1004#L28-2 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1005#L37-4 assume base2flt_~m % 4294967296 < 16777216; 997#L37-5 [2018-11-23 04:51:53,177 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:51:53,177 INFO L82 PathProgramCache]: Analyzing trace with hash -197167406, now seen corresponding path program 1 times [2018-11-23 04:51:53,177 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:51:53,178 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:51:53,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:53,178 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:51:53,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:53,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:51:53,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:51:53,206 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:51:53,207 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 04:51:53,207 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-23 04:51:53,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:51:53,207 INFO L82 PathProgramCache]: Analyzing trace with hash 172978, now seen corresponding path program 1 times [2018-11-23 04:51:53,207 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:51:53,207 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:51:53,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:53,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:51:53,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:53,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:51:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:51:53,254 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:51:53,254 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:51:53,254 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:51:53,254 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:51:53,255 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 04:51:53,255 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:51:53,255 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:51:53,255 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:51:53,255 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_5_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration5_Loop [2018-11-23 04:51:53,255 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:51:53,255 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:51:53,256 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 04:51:53,260 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 04:51:53,301 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:51:53,301 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9db44a44-89aa-4e37-b652-e203f0a1a82a/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 04:51:53,303 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:51:53,303 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:51:53,311 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 04:51:53,312 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_9db44a44-89aa-4e37-b652-e203f0a1a82a/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:51:53,330 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:51:53,330 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9db44a44-89aa-4e37-b652-e203f0a1a82a/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:51:53,350 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 04:51:53,350 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:51:53,369 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 04:51:53,370 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:51:53,370 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:51:53,370 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:51:53,370 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:51:53,370 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 04:51:53,370 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:51:53,371 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:51:53,371 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:51:53,371 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_5_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration5_Loop [2018-11-23 04:51:53,371 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:51:53,371 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:51:53,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:51:53,376 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 04:51:53,414 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:51:53,415 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 04:51:53,415 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 04:51:53,415 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:51:53,416 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:51:53,416 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:51:53,416 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:51:53,416 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:51:53,417 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 04:51:53,417 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:51:53,418 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 04:51:53,418 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 04:51:53,418 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:51:53,418 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:51:53,418 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:51:53,419 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:51:53,419 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:51:53,419 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 04:51:53,419 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:51:53,420 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 04:51:53,421 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 04:51:53,421 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 04:51:53,422 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 04:51:53,422 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 04:51:53,422 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 04:51:53,422 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 04:51:53,422 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 04:51:53,444 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:51:53,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:51:53,452 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:51:53,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:51:53,457 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:51:53,469 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 04:51:53,469 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 04:51:53,469 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 48 transitions. cyclomatic complexity: 16 Second operand 4 states. [2018-11-23 04:51:53,478 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 48 transitions. cyclomatic complexity: 16. Second operand 4 states. Result 55 states and 69 transitions. Complement of second has 5 states. [2018-11-23 04:51:53,479 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 04:51:53,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 04:51:53,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2018-11-23 04:51:53,479 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-23 04:51:53,480 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:51:53,480 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 15 letters. Loop has 3 letters. [2018-11-23 04:51:53,480 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:51:53,480 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 12 letters. Loop has 6 letters. [2018-11-23 04:51:53,480 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:51:53,480 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 69 transitions. [2018-11-23 04:51:53,481 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2018-11-23 04:51:53,482 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 52 states and 65 transitions. [2018-11-23 04:51:53,482 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2018-11-23 04:51:53,482 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2018-11-23 04:51:53,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 65 transitions. [2018-11-23 04:51:53,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 04:51:53,482 INFO L705 BuchiCegarLoop]: Abstraction has 52 states and 65 transitions. [2018-11-23 04:51:53,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 65 transitions. [2018-11-23 04:51:53,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 40. [2018-11-23 04:51:53,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-23 04:51:53,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 52 transitions. [2018-11-23 04:51:53,484 INFO L728 BuchiCegarLoop]: Abstraction has 40 states and 52 transitions. [2018-11-23 04:51:53,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 04:51:53,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 04:51:53,485 INFO L87 Difference]: Start difference. First operand 40 states and 52 transitions. Second operand 4 states. [2018-11-23 04:51:53,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:51:53,528 INFO L93 Difference]: Finished difference Result 44 states and 55 transitions. [2018-11-23 04:51:53,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 04:51:53,529 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 55 transitions. [2018-11-23 04:51:53,529 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-23 04:51:53,530 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 43 states and 54 transitions. [2018-11-23 04:51:53,530 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2018-11-23 04:51:53,530 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2018-11-23 04:51:53,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 54 transitions. [2018-11-23 04:51:53,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 04:51:53,530 INFO L705 BuchiCegarLoop]: Abstraction has 43 states and 54 transitions. [2018-11-23 04:51:53,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 54 transitions. [2018-11-23 04:51:53,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40. [2018-11-23 04:51:53,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-23 04:51:53,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2018-11-23 04:51:53,532 INFO L728 BuchiCegarLoop]: Abstraction has 40 states and 51 transitions. [2018-11-23 04:51:53,532 INFO L608 BuchiCegarLoop]: Abstraction has 40 states and 51 transitions. [2018-11-23 04:51:53,532 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-23 04:51:53,532 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 51 transitions. [2018-11-23 04:51:53,533 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-23 04:51:53,533 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 04:51:53,533 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 04:51:53,533 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:51:53,534 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 04:51:53,534 INFO L794 eck$LassoCheckResult]: Stem: 1266#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;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_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;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; 1261#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 1234#L69 base2flt_#res := base2flt_~__retres4~0; 1235#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := 1, 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; 1257#L19-1 assume !(0 == base2flt_~m % 4294967296); 1243#L25-1 assume base2flt_~m % 4294967296 < 16777216; 1244#L37-3 assume !false; 1255#L28-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1256#L37-2 assume !(base2flt_~m % 4294967296 < 16777216); 1262#L63-1 base2flt_~m := ~bitwiseAnd(base2flt_~m, ~bitwiseComplement(16777216));base2flt_~res~0 := ~bitwiseOr(base2flt_~m, 16777216 * (128 + base2flt_~e));base2flt_~__retres4~0 := base2flt_~res~0; 1247#L69-1 base2flt_#res := base2flt_~__retres4~0; 1248#L70-1 main_#t~ret5 := base2flt_#res;main_~one~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1252#L19-2 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 1231#L69-2 base2flt_#res := base2flt_~__retres4~0; 1245#L70-2 main_#t~ret6 := base2flt_#res;main_~a~0 := main_#t~ret6;havoc main_#t~ret6;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1253#L19-3 assume !(0 == base2flt_~m % 4294967296); 1238#L25-3 assume !(base2flt_~m % 4294967296 < 16777216); 1239#L47-11 [2018-11-23 04:51:53,534 INFO L796 eck$LassoCheckResult]: Loop: 1239#L47-11 assume !false; 1268#L48-3 assume base2flt_~m % 4294967296 >= 33554432; 1246#L49-3 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 1239#L47-11 [2018-11-23 04:51:53,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:51:53,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1360904017, now seen corresponding path program 1 times [2018-11-23 04:51:53,534 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:51:53,534 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:51:53,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:53,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:51:53,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:53,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:51:53,577 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 04:51:53,577 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:51:53,577 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 04:51:53,578 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-23 04:51:53,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:51:53,578 INFO L82 PathProgramCache]: Analyzing trace with hash 261296, now seen corresponding path program 1 times [2018-11-23 04:51:53,578 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:51:53,578 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:51:53,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:53,579 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:51:53,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:53,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:51:53,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:51:53,599 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:51:53,599 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:51:53,599 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:51:53,599 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:51:53,600 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 04:51:53,600 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:51:53,600 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:51:53,600 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:51:53,600 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_5_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration6_Loop [2018-11-23 04:51:53,600 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:51:53,600 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:51:53,601 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 04:51:53,605 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 04:51:53,652 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:51:53,652 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9db44a44-89aa-4e37-b652-e203f0a1a82a/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:51:53,654 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:51:53,654 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9db44a44-89aa-4e37-b652-e203f0a1a82a/bin-2019/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:51:53,674 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 04:51:53,674 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:51:53,694 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 04:51:53,696 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:51:53,696 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:51:53,696 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:51:53,696 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:51:53,696 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 04:51:53,696 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:51:53,696 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:51:53,696 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:51:53,696 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_5_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration6_Loop [2018-11-23 04:51:53,696 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:51:53,697 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:51:53,697 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 04:51:53,701 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 04:51:53,759 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:51:53,759 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 04:51:53,759 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 04:51:53,760 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:51:53,760 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:51:53,760 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:51:53,760 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:51:53,760 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:51:53,761 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 04:51:53,761 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:51:53,762 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 04:51:53,764 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 04:51:53,764 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 04:51:53,764 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 04:51:53,764 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 04:51:53,765 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 04:51:53,765 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 04:51:53,765 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 04:51:53,785 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:51:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:51:53,799 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:51:53,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:51:53,803 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:51:53,804 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 04:51:53,804 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 04:51:53,804 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 51 transitions. cyclomatic complexity: 16 Second operand 3 states. [2018-11-23 04:51:53,811 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 51 transitions. cyclomatic complexity: 16. Second operand 3 states. Result 43 states and 55 transitions. Complement of second has 4 states. [2018-11-23 04:51:53,812 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 04:51:53,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 04:51:53,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 40 transitions. [2018-11-23 04:51:53,812 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 40 transitions. Stem has 17 letters. Loop has 3 letters. [2018-11-23 04:51:53,812 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:51:53,812 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 40 transitions. Stem has 20 letters. Loop has 3 letters. [2018-11-23 04:51:53,813 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:51:53,813 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 40 transitions. Stem has 17 letters. Loop has 6 letters. [2018-11-23 04:51:53,813 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:51:53,813 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 55 transitions. [2018-11-23 04:51:53,814 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 04:51:53,814 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 37 states and 47 transitions. [2018-11-23 04:51:53,814 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2018-11-23 04:51:53,814 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2018-11-23 04:51:53,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 47 transitions. [2018-11-23 04:51:53,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 04:51:53,815 INFO L705 BuchiCegarLoop]: Abstraction has 37 states and 47 transitions. [2018-11-23 04:51:53,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 47 transitions. [2018-11-23 04:51:53,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-23 04:51:53,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-23 04:51:53,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2018-11-23 04:51:53,816 INFO L728 BuchiCegarLoop]: Abstraction has 37 states and 47 transitions. [2018-11-23 04:51:53,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 04:51:53,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 04:51:53,817 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand 4 states. [2018-11-23 04:51:53,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:51:53,865 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2018-11-23 04:51:53,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 04:51:53,866 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 56 transitions. [2018-11-23 04:51:53,866 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 04:51:53,867 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 45 states and 56 transitions. [2018-11-23 04:51:53,867 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2018-11-23 04:51:53,867 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2018-11-23 04:51:53,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 56 transitions. [2018-11-23 04:51:53,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 04:51:53,867 INFO L705 BuchiCegarLoop]: Abstraction has 45 states and 56 transitions. [2018-11-23 04:51:53,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 56 transitions. [2018-11-23 04:51:53,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 39. [2018-11-23 04:51:53,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-23 04:51:53,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2018-11-23 04:51:53,869 INFO L728 BuchiCegarLoop]: Abstraction has 39 states and 50 transitions. [2018-11-23 04:51:53,869 INFO L608 BuchiCegarLoop]: Abstraction has 39 states and 50 transitions. [2018-11-23 04:51:53,869 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-11-23 04:51:53,870 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 50 transitions. [2018-11-23 04:51:53,870 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 04:51:53,870 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 04:51:53,870 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 04:51:53,871 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:51:53,871 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 04:51:53,871 INFO L794 eck$LassoCheckResult]: Stem: 1506#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;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_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;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; 1503#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 1478#L69 base2flt_#res := base2flt_~__retres4~0; 1479#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := 1, 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; 1499#L19-1 assume !(0 == base2flt_~m % 4294967296); 1486#L25-1 assume base2flt_~m % 4294967296 < 16777216; 1487#L37-3 assume !false; 1497#L28-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1498#L37-2 assume base2flt_~m % 4294967296 < 16777216; 1509#L37-3 assume !false; 1496#L28-1 assume base2flt_~e <= -128;base2flt_~__retres4~0 := 0; 1489#L69-1 base2flt_#res := base2flt_~__retres4~0; 1490#L70-1 main_#t~ret5 := base2flt_#res;main_~one~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1494#L19-2 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 1475#L69-2 base2flt_#res := base2flt_~__retres4~0; 1488#L70-2 main_#t~ret6 := base2flt_#res;main_~a~0 := main_#t~ret6;havoc main_#t~ret6;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1495#L19-3 assume !(0 == base2flt_~m % 4294967296); 1482#L25-3 assume base2flt_~m % 4294967296 < 16777216; 1480#L37-7 [2018-11-23 04:51:53,871 INFO L796 eck$LassoCheckResult]: Loop: 1480#L37-7 assume !false; 1481#L28-3 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1505#L37-6 assume base2flt_~m % 4294967296 < 16777216; 1480#L37-7 [2018-11-23 04:51:53,871 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:51:53,871 INFO L82 PathProgramCache]: Analyzing trace with hash -377438794, now seen corresponding path program 1 times [2018-11-23 04:51:53,871 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:51:53,872 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:51:53,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:53,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:51:53,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:51:53,908 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:51:53,908 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 04:51:53,909 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9db44a44-89aa-4e37-b652-e203f0a1a82a/bin-2019/uautomizer/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 04:51:53,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:51:53,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:51:53,936 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:51:53,940 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:51:53,960 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 04:51:53,960 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5 [2018-11-23 04:51:53,960 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-23 04:51:53,960 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:51:53,960 INFO L82 PathProgramCache]: Analyzing trace with hash 235537, now seen corresponding path program 1 times [2018-11-23 04:51:53,960 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:51:53,961 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:51:53,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:53,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:51:53,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:51:53,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:51:53,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:51:53,983 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:51:53,983 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:51:53,983 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:51:53,983 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:51:53,983 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 04:51:53,984 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:51:53,984 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:51:53,984 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:51:53,984 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_5_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration7_Loop [2018-11-23 04:51:53,984 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:51:53,984 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:51:53,985 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 04:51:53,990 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 04:51:54,028 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:51:54,029 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9db44a44-89aa-4e37-b652-e203f0a1a82a/bin-2019/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:51:54,031 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:51:54,031 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:51:54,039 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 04:51:54,039 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_9db44a44-89aa-4e37-b652-e203f0a1a82a/bin-2019/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:51:54,060 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:51:54,060 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9db44a44-89aa-4e37-b652-e203f0a1a82a/bin-2019/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:51:54,093 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 04:51:54,093 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:51:54,113 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 04:51:54,114 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:51:54,114 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:51:54,114 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:51:54,114 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:51:54,114 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 04:51:54,114 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:51:54,114 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:51:54,114 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:51:54,114 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_5_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration7_Loop [2018-11-23 04:51:54,114 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:51:54,114 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:51:54,115 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 04:51:54,121 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 04:51:54,154 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:51:54,154 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 04:51:54,154 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 04:51:54,155 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:51:54,155 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:51:54,155 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:51:54,155 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:51:54,155 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:51:54,156 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 04:51:54,156 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:51:54,157 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 04:51:54,157 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 04:51:54,163 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:51:54,163 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:51:54,163 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:51:54,163 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:51:54,163 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:51:54,164 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 04:51:54,164 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:51:54,165 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 04:51:54,166 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 04:51:54,166 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 04:51:54,167 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 04:51:54,167 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 04:51:54,167 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 04:51:54,167 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 04:51:54,167 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 04:51:54,184 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:51:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:51:54,194 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:51:54,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:51:54,198 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:51:54,206 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 04:51:54,206 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 04:51:54,206 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 50 transitions. cyclomatic complexity: 15 Second operand 4 states. [2018-11-23 04:51:54,214 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 50 transitions. cyclomatic complexity: 15. Second operand 4 states. Result 43 states and 54 transitions. Complement of second has 4 states. [2018-11-23 04:51:54,216 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 04:51:54,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 04:51:54,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 37 transitions. [2018-11-23 04:51:54,216 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 37 transitions. Stem has 18 letters. Loop has 3 letters. [2018-11-23 04:51:54,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:51:54,217 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 37 transitions. Stem has 21 letters. Loop has 3 letters. [2018-11-23 04:51:54,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:51:54,217 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 37 transitions. Stem has 18 letters. Loop has 6 letters. [2018-11-23 04:51:54,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:51:54,218 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 54 transitions. [2018-11-23 04:51:54,218 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 04:51:54,218 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 0 states and 0 transitions. [2018-11-23 04:51:54,218 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 04:51:54,218 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 04:51:54,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 04:51:54,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 04:51:54,219 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 04:51:54,219 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 04:51:54,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 04:51:54,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-23 04:51:54,219 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2018-11-23 04:51:54,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:51:54,219 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-23 04:51:54,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 04:51:54,220 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-23 04:51:54,220 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 04:51:54,220 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 04:51:54,220 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 04:51:54,220 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 04:51:54,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 04:51:54,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 04:51:54,220 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 04:51:54,220 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 04:51:54,220 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 04:51:54,220 INFO L442 BuchiCegarLoop]: ======== Iteration 8============ [2018-11-23 04:51:54,221 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 04:51:54,221 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 04:51:54,221 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 04:51:54,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 04:51:54 BoogieIcfgContainer [2018-11-23 04:51:54,227 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 04:51:54,228 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 04:51:54,228 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 04:51:54,228 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 04:51:54,229 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:51:51" (3/4) ... [2018-11-23 04:51:54,232 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 04:51:54,232 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 04:51:54,233 INFO L168 Benchmark]: Toolchain (without parser) took 3858.47 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 221.2 MB). Free memory was 958.0 MB in the beginning and 1.0 GB in the end (delta: -59.8 MB). Peak memory consumption was 161.4 MB. Max. memory is 11.5 GB. [2018-11-23 04:51:54,234 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:51:54,234 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.84 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 941.8 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. [2018-11-23 04:51:54,235 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.45 ms. Allocated memory is still 1.0 GB. Free memory is still 941.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:51:54,235 INFO L168 Benchmark]: Boogie Preprocessor took 69.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 941.8 MB in the beginning and 1.1 GB in the end (delta: -203.5 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2018-11-23 04:51:54,236 INFO L168 Benchmark]: RCFGBuilder took 356.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 11.5 GB. [2018-11-23 04:51:54,236 INFO L168 Benchmark]: BuchiAutomizer took 3147.19 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 70.8 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 90.4 MB). Peak memory consumption was 161.2 MB. Max. memory is 11.5 GB. [2018-11-23 04:51:54,237 INFO L168 Benchmark]: Witness Printer took 4.51 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:51:54,240 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 237.84 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 941.8 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.45 ms. Allocated memory is still 1.0 GB. Free memory is still 941.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 69.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 941.8 MB in the beginning and 1.1 GB in the end (delta: -203.5 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 356.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3147.19 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 70.8 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 90.4 MB). Peak memory consumption was 161.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.51 ms. Allocated memory is still 1.3 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 13 terminating modules (6 trivial, 7 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. 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. 6 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 2.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 9. Automata minimization 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 95 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 40 states and ocurred in iteration 5. Nontrivial modules had stage [7, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 542 SDtfs, 373 SDslu, 116 SDs, 0 SdLazy, 207 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT6 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf95 lsp57 ukn100 mio100 lsp100 div596 bol100 ite100 ukn100 eq131 hnf43 smp92 dnf100 smp100 tf105 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...