./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_85129d49-7441-4854-8b3b-7b6706370213/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_85129d49-7441-4854-8b3b-7b6706370213/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_85129d49-7441-4854-8b3b-7b6706370213/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_85129d49-7441-4854-8b3b-7b6706370213/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_85129d49-7441-4854-8b3b-7b6706370213/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_85129d49-7441-4854-8b3b-7b6706370213/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ee05cb2d66f71fb2277986b04bb223cfc634fed1 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 04:17:53,184 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 04:17:53,185 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 04:17:53,192 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 04:17:53,193 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 04:17:53,193 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 04:17:53,194 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 04:17:53,196 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 04:17:53,197 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 04:17:53,198 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 04:17:53,199 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 04:17:53,199 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 04:17:53,200 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 04:17:53,200 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 04:17:53,201 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 04:17:53,202 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 04:17:53,202 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 04:17:53,203 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 04:17:53,205 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 04:17:53,206 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 04:17:53,207 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 04:17:53,208 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 04:17:53,210 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 04:17:53,210 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 04:17:53,210 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 04:17:53,211 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 04:17:53,212 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 04:17:53,212 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 04:17:53,213 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 04:17:53,213 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 04:17:53,213 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 04:17:53,214 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 04:17:53,214 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 04:17:53,214 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 04:17:53,215 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 04:17:53,215 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 04:17:53,215 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_85129d49-7441-4854-8b3b-7b6706370213/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-10 04:17:53,224 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 04:17:53,224 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 04:17:53,225 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 04:17:53,225 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 04:17:53,225 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 04:17:53,225 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 04:17:53,226 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 04:17:53,226 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 04:17:53,226 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 04:17:53,226 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 04:17:53,226 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 04:17:53,226 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 04:17:53,226 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 04:17:53,226 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 04:17:53,227 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 04:17:53,227 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 04:17:53,227 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 04:17:53,227 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 04:17:53,227 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 04:17:53,227 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 04:17:53,227 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 04:17:53,227 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 04:17:53,228 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 04:17:53,228 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 04:17:53,228 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 04:17:53,228 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 04:17:53,228 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 04:17:53,228 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 04:17:53,228 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 04:17:53,228 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 04:17:53,229 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 04:17:53,229 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_85129d49-7441-4854-8b3b-7b6706370213/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee05cb2d66f71fb2277986b04bb223cfc634fed1 [2018-11-10 04:17:53,249 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 04:17:53,259 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 04:17:53,262 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 04:17:53,263 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 04:17:53,263 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 04:17:53,264 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_85129d49-7441-4854-8b3b-7b6706370213/bin-2019/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c [2018-11-10 04:17:53,306 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_85129d49-7441-4854-8b3b-7b6706370213/bin-2019/uautomizer/data/5374b4fff/3f6113784a644e96973c7563718e592b/FLAG2ee7ee33b [2018-11-10 04:17:53,642 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 04:17:53,643 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_85129d49-7441-4854-8b3b-7b6706370213/sv-benchmarks/c/bitvector/soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c [2018-11-10 04:17:53,648 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_85129d49-7441-4854-8b3b-7b6706370213/bin-2019/uautomizer/data/5374b4fff/3f6113784a644e96973c7563718e592b/FLAG2ee7ee33b [2018-11-10 04:17:53,660 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_85129d49-7441-4854-8b3b-7b6706370213/bin-2019/uautomizer/data/5374b4fff/3f6113784a644e96973c7563718e592b [2018-11-10 04:17:53,662 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 04:17:53,663 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 04:17:53,664 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 04:17:53,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 04:17:53,668 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 04:17:53,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:17:53" (1/1) ... [2018-11-10 04:17:53,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f1788b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:17:53, skipping insertion in model container [2018-11-10 04:17:53,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:17:53" (1/1) ... [2018-11-10 04:17:53,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 04:17:53,697 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 04:17:53,830 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:17:53,832 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 04:17:53,864 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:17:53,875 INFO L193 MainTranslator]: Completed translation [2018-11-10 04:17:53,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:17:53 WrapperNode [2018-11-10 04:17:53,875 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 04:17:53,876 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 04:17:53,876 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 04:17:53,876 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 04:17:53,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:17:53" (1/1) ... [2018-11-10 04:17:53,892 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:17:53" (1/1) ... [2018-11-10 04:17:53,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 04:17:53,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 04:17:53,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 04:17:53,919 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 04:17:53,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:17:53" (1/1) ... [2018-11-10 04:17:53,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:17:53" (1/1) ... [2018-11-10 04:17:53,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:17:53" (1/1) ... [2018-11-10 04:17:53,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:17:53" (1/1) ... [2018-11-10 04:17:53,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:17:53" (1/1) ... [2018-11-10 04:17:53,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:17:53" (1/1) ... [2018-11-10 04:17:53,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:17:53" (1/1) ... [2018-11-10 04:17:53,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 04:17:53,991 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 04:17:53,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 04:17:53,992 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 04:17:53,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:17:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_85129d49-7441-4854-8b3b-7b6706370213/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 [2018-11-10 04:17:54,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 04:17:54,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 04:17:54,404 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 04:17:54,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:17:54 BoogieIcfgContainer [2018-11-10 04:17:54,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 04:17:54,405 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 04:17:54,406 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 04:17:54,410 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 04:17:54,410 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 04:17:54,411 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 04:17:53" (1/3) ... [2018-11-10 04:17:54,411 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e88dc28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 04:17:54, skipping insertion in model container [2018-11-10 04:17:54,412 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 04:17:54,412 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:17:53" (2/3) ... [2018-11-10 04:17:54,412 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e88dc28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 04:17:54, skipping insertion in model container [2018-11-10 04:17:54,412 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 04:17:54,412 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:17:54" (3/3) ... [2018-11-10 04:17:54,415 INFO L375 chiAutomizerObserver]: Analyzing ICFG soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c [2018-11-10 04:17:54,458 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 04:17:54,458 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 04:17:54,458 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 04:17:54,459 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 04:17:54,459 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 04:17:54,459 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 04:17:54,459 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 04:17:54,459 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 04:17:54,459 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 04:17:54,473 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 79 states. [2018-11-10 04:17:54,495 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 24 [2018-11-10 04:17:54,495 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 04:17:54,495 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 04:17:54,500 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-10 04:17:54,501 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 04:17:54,501 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 04:17:54,501 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 79 states. [2018-11-10 04:17:54,505 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 24 [2018-11-10 04:17:54,505 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 04:17:54,506 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 04:17:54,506 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-10 04:17:54,506 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 04:17:54,513 INFO L793 eck$LassoCheckResult]: Stem: 35#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;assume { :begin_inline_base2flt } true;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 32#L19true assume !(base2flt_~m % 4294967296 == 0); 21#L25true assume !(base2flt_~m % 4294967296 < 16777216); 13#L47-3true [2018-11-10 04:17:54,513 INFO L795 eck$LassoCheckResult]: Loop: 13#L47-3true assume true; 20#L47-1true assume !false; 27#L48true assume base2flt_~m % 4294967296 >= 33554432; 52#L49true assume !(base2flt_~e >= 127);base2flt_~e := base2flt_~e + 1;base2flt_~m := base2flt_~m / 2; 13#L47-3true [2018-11-10 04:17:54,518 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:17:54,518 INFO L82 PathProgramCache]: Analyzing trace with hash 925697, now seen corresponding path program 1 times [2018-11-10 04:17:54,520 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:17:54,521 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:17:54,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:54,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:17:54,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:17:54,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:17:54,657 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:17:54,657 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 04:17:54,661 INFO L798 eck$LassoCheckResult]: stem already infeasible [2018-11-10 04:17:54,661 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:17:54,661 INFO L82 PathProgramCache]: Analyzing trace with hash 2191759, now seen corresponding path program 1 times [2018-11-10 04:17:54,661 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:17:54,662 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:17:54,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:54,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:17:54,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:17:54,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:17:54,732 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 04:17:54,733 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 04:17:54,733 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 04:17:54,733 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 04:17:54,733 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 04:17:54,733 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 04:17:54,733 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 04:17:54,734 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 04:17:54,734 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration1_Loop [2018-11-10 04:17:54,734 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 04:17:54,734 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 04:17:54,749 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:17:54,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:17:54,846 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 04:17:54,847 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_85129d49-7441-4854-8b3b-7b6706370213/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 [2018-11-10 04:17:54,850 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 04:17:54,850 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_85129d49-7441-4854-8b3b-7b6706370213/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 [2018-11-10 04:17:54,873 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 04:17:54,873 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 04:17:54,894 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 04:17:54,895 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 04:17:54,895 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 04:17:54,895 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 04:17:54,895 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 04:17:54,895 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 04:17:54,895 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 04:17:54,896 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 04:17:54,896 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 04:17:54,896 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration1_Loop [2018-11-10 04:17:54,896 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 04:17:54,896 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 04:17:54,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:17:54,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:17:54,980 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 04:17:54,985 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 04:17:54,987 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 [2018-11-10 04:17:54,988 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 04:17:54,988 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 04:17:54,989 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 04:17:54,989 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 04:17:54,989 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 04:17:54,991 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 04:17:54,991 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 04:17:54,996 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 04:17:55,000 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 04:17:55,001 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 04:17:55,002 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 04:17:55,003 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 04:17:55,003 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 04:17:55,004 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2018-11-10 04:17:55,005 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 04:17:55,032 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:17:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:17:55,043 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:17:55,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:17:55,054 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:17:55,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:17:55,071 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 [2018-11-10 04:17:55,072 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 79 states. Second operand 3 states. [2018-11-10 04:17:55,124 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 79 states.. Second operand 3 states. Result 228 states and 349 transitions. Complement of second has 6 states. [2018-11-10 04:17:55,124 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 [2018-11-10 04:17:55,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-10 04:17:55,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 230 transitions. [2018-11-10 04:17:55,128 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 230 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-10 04:17:55,129 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 04:17:55,129 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 230 transitions. Stem has 8 letters. Loop has 4 letters. [2018-11-10 04:17:55,129 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 04:17:55,129 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 230 transitions. Stem has 4 letters. Loop has 8 letters. [2018-11-10 04:17:55,129 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 04:17:55,130 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 228 states and 349 transitions. [2018-11-10 04:17:55,134 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 36 [2018-11-10 04:17:55,139 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 228 states to 68 states and 93 transitions. [2018-11-10 04:17:55,140 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 63 [2018-11-10 04:17:55,140 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 64 [2018-11-10 04:17:55,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 93 transitions. [2018-11-10 04:17:55,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 04:17:55,141 INFO L705 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2018-11-10 04:17:55,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 93 transitions. [2018-11-10 04:17:55,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 55. [2018-11-10 04:17:55,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-11-10 04:17:55,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 79 transitions. [2018-11-10 04:17:55,171 INFO L728 BuchiCegarLoop]: Abstraction has 55 states and 79 transitions. [2018-11-10 04:17:55,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 04:17:55,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 04:17:55,176 INFO L87 Difference]: Start difference. First operand 55 states and 79 transitions. Second operand 3 states. [2018-11-10 04:17:55,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:17:55,239 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2018-11-10 04:17:55,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 04:17:55,240 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2018-11-10 04:17:55,241 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2018-11-10 04:17:55,241 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 28 states and 35 transitions. [2018-11-10 04:17:55,241 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2018-11-10 04:17:55,242 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2018-11-10 04:17:55,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 35 transitions. [2018-11-10 04:17:55,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 04:17:55,242 INFO L705 BuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2018-11-10 04:17:55,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 35 transitions. [2018-11-10 04:17:55,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-10 04:17:55,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-10 04:17:55,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2018-11-10 04:17:55,244 INFO L728 BuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2018-11-10 04:17:55,244 INFO L608 BuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2018-11-10 04:17:55,244 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 04:17:55,244 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 35 transitions. [2018-11-10 04:17:55,245 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2018-11-10 04:17:55,245 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 04:17:55,245 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 04:17:55,246 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:17:55,246 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 04:17:55,246 INFO L793 eck$LassoCheckResult]: Stem: 464#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 444#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;assume { :begin_inline_base2flt } true;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 base2flt_~m % 4294967296 == 0;base2flt_~__retres4~0 := 0; 439#L69 base2flt_#res := base2flt_~__retres4~0; 440#L70 main_#t~ret4 := base2flt_#res;assume { :end_inline_base2flt } true;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;assume { :begin_inline_base2flt } true;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; 460#L19-1 assume !(base2flt_~m % 4294967296 == 0); 452#L25-1 assume !(base2flt_~m % 4294967296 < 16777216); 443#L47-7 [2018-11-10 04:17:55,246 INFO L795 eck$LassoCheckResult]: Loop: 443#L47-7 assume true; 446#L47-5 assume !false; 447#L48-1 assume base2flt_~m % 4294967296 >= 33554432; 441#L49-1 assume !(base2flt_~e >= 127);base2flt_~e := base2flt_~e + 1;base2flt_~m := base2flt_~m / 2; 443#L47-7 [2018-11-10 04:17:55,247 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:17:55,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1806689378, now seen corresponding path program 1 times [2018-11-10 04:17:55,247 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:17:55,247 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:17:55,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:55,248 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:17:55,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:55,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:17:55,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:17:55,263 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:17:55,263 INFO L82 PathProgramCache]: Analyzing trace with hash 4192719, now seen corresponding path program 1 times [2018-11-10 04:17:55,263 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:17:55,263 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:17:55,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:55,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:17:55,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:17:55,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:17:55,275 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:17:55,275 INFO L82 PathProgramCache]: Analyzing trace with hash -1900755536, now seen corresponding path program 1 times [2018-11-10 04:17:55,275 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:17:55,275 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:17:55,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:55,276 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:17:55,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:55,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:17:55,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:17:55,329 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 04:17:55,329 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 04:17:55,330 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 04:17:55,330 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 04:17:55,330 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 04:17:55,330 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 04:17:55,330 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 04:17:55,330 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 04:17:55,330 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration2_Loop [2018-11-10 04:17:55,330 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 04:17:55,330 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 04:17:55,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:17:55,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:17:55,417 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 04:17:55,418 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_85129d49-7441-4854-8b3b-7b6706370213/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 [2018-11-10 04:17:55,420 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 04:17:55,420 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 04:17:55,520 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 04:17:55,520 INFO L446 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_85129d49-7441-4854-8b3b-7b6706370213/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 [2018-11-10 04:17:55,538 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 04:17:55,538 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_85129d49-7441-4854-8b3b-7b6706370213/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 [2018-11-10 04:17:55,568 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 04:17:55,568 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 04:17:55,595 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 04:17:55,596 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 04:17:55,596 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 04:17:55,596 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 04:17:55,597 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 04:17:55,597 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 04:17:55,597 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 04:17:55,597 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 04:17:55,597 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 04:17:55,597 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration2_Loop [2018-11-10 04:17:55,597 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 04:17:55,598 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 04:17:55,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:17:55,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:17:55,696 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 04:17:55,696 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 04:17:55,697 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 [2018-11-10 04:17:55,698 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 04:17:55,698 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 04:17:55,698 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 04:17:55,699 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 04:17:55,699 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 04:17:55,700 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 04:17:55,700 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 04:17:55,706 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 04:17:55,707 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 [2018-11-10 04:17:55,708 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 04:17:55,708 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 04:17:55,708 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 04:17:55,708 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 04:17:55,708 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 04:17:55,709 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 04:17:55,709 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 04:17:55,712 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 04:17:55,714 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 04:17:55,715 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 04:17:55,715 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 04:17:55,715 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 04:17:55,715 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 04:17:55,715 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2018-11-10 04:17:55,716 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 04:17:55,738 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:17:55,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:17:55,751 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:17:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:17:55,763 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:17:55,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:17:55,764 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 [2018-11-10 04:17:55,764 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 35 transitions. cyclomatic complexity: 11 Second operand 3 states. [2018-11-10 04:17:55,772 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 35 transitions. cyclomatic complexity: 11. Second operand 3 states. Result 48 states and 58 transitions. Complement of second has 5 states. [2018-11-10 04:17:55,773 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 [2018-11-10 04:17:55,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-10 04:17:55,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 37 transitions. [2018-11-10 04:17:55,774 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 37 transitions. Stem has 7 letters. Loop has 4 letters. [2018-11-10 04:17:55,774 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 04:17:55,774 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 37 transitions. Stem has 11 letters. Loop has 4 letters. [2018-11-10 04:17:55,774 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 04:17:55,774 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 37 transitions. Stem has 7 letters. Loop has 8 letters. [2018-11-10 04:17:55,774 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 04:17:55,775 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 58 transitions. [2018-11-10 04:17:55,775 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 20 [2018-11-10 04:17:55,776 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 45 states and 54 transitions. [2018-11-10 04:17:55,776 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2018-11-10 04:17:55,776 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2018-11-10 04:17:55,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 54 transitions. [2018-11-10 04:17:55,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 04:17:55,776 INFO L705 BuchiCegarLoop]: Abstraction has 45 states and 54 transitions. [2018-11-10 04:17:55,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 54 transitions. [2018-11-10 04:17:55,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 32. [2018-11-10 04:17:55,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-10 04:17:55,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2018-11-10 04:17:55,778 INFO L728 BuchiCegarLoop]: Abstraction has 32 states and 40 transitions. [2018-11-10 04:17:55,778 INFO L608 BuchiCegarLoop]: Abstraction has 32 states and 40 transitions. [2018-11-10 04:17:55,778 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-10 04:17:55,778 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 40 transitions. [2018-11-10 04:17:55,780 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2018-11-10 04:17:55,780 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 04:17:55,780 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 04:17:55,780 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:17:55,781 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 04:17:55,781 INFO L793 eck$LassoCheckResult]: Stem: 597#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 574#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;assume { :begin_inline_base2flt } true;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; 575#L19 assume base2flt_~m % 4294967296 == 0;base2flt_~__retres4~0 := 0; 568#L69 base2flt_#res := base2flt_~__retres4~0; 569#L70 main_#t~ret4 := base2flt_#res;assume { :end_inline_base2flt } true;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;assume { :begin_inline_base2flt } true;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; 593#L19-1 assume !(base2flt_~m % 4294967296 == 0); 584#L25-1 assume base2flt_~m % 4294967296 < 16777216; 586#L37-3 [2018-11-10 04:17:55,781 INFO L795 eck$LassoCheckResult]: Loop: 586#L37-3 assume true; 580#L27-4 assume !false; 581#L28-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := base2flt_~m * 2; 592#L37-2 assume base2flt_~m % 4294967296 < 16777216; 586#L37-3 [2018-11-10 04:17:55,781 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:17:55,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1806689351, now seen corresponding path program 1 times [2018-11-10 04:17:55,781 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:17:55,782 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:17:55,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:55,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:17:55,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:55,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:17:55,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:17:55,793 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:17:55,794 INFO L82 PathProgramCache]: Analyzing trace with hash 3361610, now seen corresponding path program 1 times [2018-11-10 04:17:55,794 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:17:55,794 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:17:55,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:55,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:17:55,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:55,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:17:55,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:17:55,800 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:17:55,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1926521712, now seen corresponding path program 1 times [2018-11-10 04:17:55,800 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:17:55,800 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:17:55,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:55,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:17:55,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:55,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:17:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:17:55,846 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 04:17:55,846 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 04:17:55,846 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 04:17:55,846 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 04:17:55,846 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 04:17:55,846 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 04:17:55,846 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 04:17:55,847 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 04:17:55,847 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration3_Loop [2018-11-10 04:17:55,847 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 04:17:55,847 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 04:17:55,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:17:55,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:17:55,897 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 04:17:55,897 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_85129d49-7441-4854-8b3b-7b6706370213/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 [2018-11-10 04:17:55,900 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 04:17:55,900 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 04:17:55,907 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 04:17:55,907 INFO L446 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_85129d49-7441-4854-8b3b-7b6706370213/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 [2018-11-10 04:17:55,925 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 04:17:55,925 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_85129d49-7441-4854-8b3b-7b6706370213/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 [2018-11-10 04:17:55,944 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 04:17:55,944 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 04:17:55,961 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 04:17:55,963 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 04:17:55,963 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 04:17:55,963 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 04:17:55,963 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 04:17:55,963 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 04:17:55,963 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 04:17:55,963 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 04:17:55,964 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 04:17:55,964 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration3_Loop [2018-11-10 04:17:55,964 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 04:17:55,964 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 04:17:55,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:17:55,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:17:56,013 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 04:17:56,014 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 04:17:56,014 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 [2018-11-10 04:17:56,014 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 04:17:56,015 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 04:17:56,015 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 04:17:56,015 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 04:17:56,015 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 04:17:56,016 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 04:17:56,016 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 04:17:56,018 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 04:17:56,020 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 [2018-11-10 04:17:56,020 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 04:17:56,020 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 04:17:56,021 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 04:17:56,021 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 04:17:56,021 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 04:17:56,021 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 04:17:56,021 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 04:17:56,026 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 04:17:56,028 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 04:17:56,028 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 04:17:56,028 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 04:17:56,028 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 04:17:56,028 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 04:17:56,029 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2018-11-10 04:17:56,029 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 04:17:56,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:17:56,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:17:56,047 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:17:56,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:17:56,053 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:17:56,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:17:56,084 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 [2018-11-10 04:17:56,084 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 40 transitions. cyclomatic complexity: 12 Second operand 4 states. [2018-11-10 04:17:56,103 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 40 transitions. cyclomatic complexity: 12. Second operand 4 states. Result 53 states and 64 transitions. Complement of second has 5 states. [2018-11-10 04:17:56,103 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 [2018-11-10 04:17:56,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 04:17:56,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 38 transitions. [2018-11-10 04:17:56,104 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 38 transitions. Stem has 7 letters. Loop has 4 letters. [2018-11-10 04:17:56,104 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 04:17:56,104 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 38 transitions. Stem has 11 letters. Loop has 4 letters. [2018-11-10 04:17:56,104 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 04:17:56,104 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 38 transitions. Stem has 7 letters. Loop has 8 letters. [2018-11-10 04:17:56,104 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 04:17:56,105 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 64 transitions. [2018-11-10 04:17:56,106 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2018-11-10 04:17:56,107 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 50 states and 60 transitions. [2018-11-10 04:17:56,107 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2018-11-10 04:17:56,107 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2018-11-10 04:17:56,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 60 transitions. [2018-11-10 04:17:56,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 04:17:56,107 INFO L705 BuchiCegarLoop]: Abstraction has 50 states and 60 transitions. [2018-11-10 04:17:56,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states and 60 transitions. [2018-11-10 04:17:56,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 36. [2018-11-10 04:17:56,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-10 04:17:56,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 45 transitions. [2018-11-10 04:17:56,111 INFO L728 BuchiCegarLoop]: Abstraction has 36 states and 45 transitions. [2018-11-10 04:17:56,111 INFO L608 BuchiCegarLoop]: Abstraction has 36 states and 45 transitions. [2018-11-10 04:17:56,111 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-10 04:17:56,111 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 45 transitions. [2018-11-10 04:17:56,112 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-10 04:17:56,112 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 04:17:56,112 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 04:17:56,112 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:17:56,112 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 04:17:56,113 INFO L793 eck$LassoCheckResult]: Stem: 738#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 713#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;assume { :begin_inline_base2flt } true;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; 714#L19 assume base2flt_~m % 4294967296 == 0;base2flt_~__retres4~0 := 0; 707#L69 base2flt_#res := base2flt_~__retres4~0; 708#L70 main_#t~ret4 := base2flt_#res;assume { :end_inline_base2flt } true;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;assume { :begin_inline_base2flt } true;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; 734#L19-1 assume base2flt_~m % 4294967296 == 0;base2flt_~__retres4~0 := 0; 710#L69-1 base2flt_#res := base2flt_~__retres4~0; 728#L70-1 main_#t~ret5 := base2flt_#res;assume { :end_inline_base2flt } true;main_~a~0 := main_#t~ret5;havoc main_#t~ret5;assume { :begin_inline_base2flt } true;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; 732#L19-2 assume !(base2flt_~m % 4294967296 == 0); 723#L25-2 assume !(base2flt_~m % 4294967296 < 16777216); 706#L47-11 [2018-11-10 04:17:56,113 INFO L795 eck$LassoCheckResult]: Loop: 706#L47-11 assume true; 735#L47-9 assume !false; 736#L48-2 assume base2flt_~m % 4294967296 >= 33554432; 705#L49-2 assume !(base2flt_~e >= 127);base2flt_~e := base2flt_~e + 1;base2flt_~m := base2flt_~m / 2; 706#L47-11 [2018-11-10 04:17:56,113 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:17:56,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1447775102, now seen corresponding path program 1 times [2018-11-10 04:17:56,113 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:17:56,114 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:17:56,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:56,114 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:17:56,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:56,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:17:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:17:56,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:17:56,128 INFO L82 PathProgramCache]: Analyzing trace with hash 6193679, now seen corresponding path program 1 times [2018-11-10 04:17:56,128 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:17:56,128 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:17:56,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:56,129 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:17:56,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:56,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:17:56,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:17:56,138 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:17:56,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1615655408, now seen corresponding path program 1 times [2018-11-10 04:17:56,138 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:17:56,138 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:17:56,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:56,140 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:17:56,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:17:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:17:56,190 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 04:17:56,190 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 04:17:56,190 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 04:17:56,190 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 04:17:56,190 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 04:17:56,190 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 04:17:56,191 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 04:17:56,191 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 04:17:56,191 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration4_Loop [2018-11-10 04:17:56,191 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 04:17:56,191 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 04:17:56,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:17:56,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:17:56,243 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 04:17:56,243 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_85129d49-7441-4854-8b3b-7b6706370213/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 [2018-11-10 04:17:56,248 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 04:17:56,248 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_85129d49-7441-4854-8b3b-7b6706370213/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 [2018-11-10 04:17:56,274 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 04:17:56,274 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 04:17:56,303 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 04:17:56,305 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 04:17:56,306 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 04:17:56,306 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 04:17:56,306 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 04:17:56,306 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 04:17:56,306 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 04:17:56,306 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 04:17:56,306 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 04:17:56,306 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration4_Loop [2018-11-10 04:17:56,306 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 04:17:56,306 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 04:17:56,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:17:56,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:17:56,378 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 04:17:56,378 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 04:17:56,379 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 [2018-11-10 04:17:56,379 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 04:17:56,379 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 04:17:56,380 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 04:17:56,380 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 04:17:56,380 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 04:17:56,380 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 04:17:56,380 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 04:17:56,383 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 04:17:56,387 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 04:17:56,387 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 04:17:56,387 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 04:17:56,387 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 04:17:56,387 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 04:17:56,387 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2018-11-10 04:17:56,388 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 04:17:56,397 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:17:56,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:17:56,406 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:17:56,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:17:56,413 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:17:56,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:17:56,414 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 [2018-11-10 04:17:56,414 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 45 transitions. cyclomatic complexity: 13 Second operand 3 states. [2018-11-10 04:17:56,431 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 45 transitions. cyclomatic complexity: 13. Second operand 3 states. Result 40 states and 50 transitions. Complement of second has 4 states. [2018-11-10 04:17:56,432 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 [2018-11-10 04:17:56,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-10 04:17:56,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 35 transitions. [2018-11-10 04:17:56,432 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 35 transitions. Stem has 10 letters. Loop has 4 letters. [2018-11-10 04:17:56,432 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 04:17:56,432 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 35 transitions. Stem has 14 letters. Loop has 4 letters. [2018-11-10 04:17:56,433 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 04:17:56,433 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 35 transitions. Stem has 10 letters. Loop has 8 letters. [2018-11-10 04:17:56,433 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 04:17:56,433 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 50 transitions. [2018-11-10 04:17:56,434 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 04:17:56,434 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 32 states and 40 transitions. [2018-11-10 04:17:56,434 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2018-11-10 04:17:56,434 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2018-11-10 04:17:56,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 40 transitions. [2018-11-10 04:17:56,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 04:17:56,434 INFO L705 BuchiCegarLoop]: Abstraction has 32 states and 40 transitions. [2018-11-10 04:17:56,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 40 transitions. [2018-11-10 04:17:56,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-10 04:17:56,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-10 04:17:56,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2018-11-10 04:17:56,436 INFO L728 BuchiCegarLoop]: Abstraction has 32 states and 40 transitions. [2018-11-10 04:17:56,436 INFO L608 BuchiCegarLoop]: Abstraction has 32 states and 40 transitions. [2018-11-10 04:17:56,436 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-10 04:17:56,436 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 40 transitions. [2018-11-10 04:17:56,437 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 04:17:56,437 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 04:17:56,437 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 04:17:56,437 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:17:56,437 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 04:17:56,438 INFO L793 eck$LassoCheckResult]: Stem: 867#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 866#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;assume { :begin_inline_base2flt } true;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; 864#L19 assume base2flt_~m % 4294967296 == 0;base2flt_~__retres4~0 := 0; 849#L69 base2flt_#res := base2flt_~__retres4~0; 850#L70 main_#t~ret4 := base2flt_#res;assume { :end_inline_base2flt } true;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;assume { :begin_inline_base2flt } true;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; 858#L19-1 assume base2flt_~m % 4294967296 == 0;base2flt_~__retres4~0 := 0; 853#L69-1 base2flt_#res := base2flt_~__retres4~0; 851#L70-1 main_#t~ret5 := base2flt_#res;assume { :end_inline_base2flt } true;main_~a~0 := main_#t~ret5;havoc main_#t~ret5;assume { :begin_inline_base2flt } true;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; 852#L19-2 assume !(base2flt_~m % 4294967296 == 0); 859#L25-2 assume base2flt_~m % 4294967296 < 16777216; 868#L37-5 [2018-11-10 04:17:56,438 INFO L795 eck$LassoCheckResult]: Loop: 868#L37-5 assume true; 865#L27-7 assume !false; 847#L28-2 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := base2flt_~m * 2; 848#L37-4 assume base2flt_~m % 4294967296 < 16777216; 868#L37-5 [2018-11-10 04:17:56,438 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:17:56,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1447775129, now seen corresponding path program 1 times [2018-11-10 04:17:56,438 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:17:56,438 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:17:56,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:56,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:17:56,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:17:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:17:56,450 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:17:56,450 INFO L82 PathProgramCache]: Analyzing trace with hash 5362570, now seen corresponding path program 1 times [2018-11-10 04:17:56,450 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:17:56,451 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:17:56,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:56,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:17:56,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:56,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:17:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:17:56,455 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:17:56,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1641421584, now seen corresponding path program 1 times [2018-11-10 04:17:56,456 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:17:56,456 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:17:56,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:56,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:17:56,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:17:56,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:17:56,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:17:56,495 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 04:17:56,495 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 04:17:56,495 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 04:17:56,495 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 04:17:56,495 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 04:17:56,495 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 04:17:56,495 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 04:17:56,495 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 04:17:56,496 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration5_Loop [2018-11-10 04:17:56,496 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 04:17:56,496 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 04:17:56,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:17:56,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:17:56,551 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 04:17:56,551 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_85129d49-7441-4854-8b3b-7b6706370213/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 [2018-11-10 04:17:56,553 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 04:17:56,553 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_85129d49-7441-4854-8b3b-7b6706370213/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 [2018-11-10 04:17:56,574 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 04:17:56,574 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 04:17:56,601 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 04:17:56,602 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 04:17:56,602 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 04:17:56,602 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 04:17:56,602 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 04:17:56,603 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 04:17:56,603 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 04:17:56,603 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 04:17:56,603 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 04:17:56,603 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_4_true-unreach-call_true-no-overflow_true-termination.c.cil.c_Iteration5_Loop [2018-11-10 04:17:56,603 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 04:17:56,603 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 04:17:56,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:17:56,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:17:56,649 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 04:17:56,649 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 04:17:56,650 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 [2018-11-10 04:17:56,650 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 04:17:56,650 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 04:17:56,651 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 04:17:56,651 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 04:17:56,651 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 04:17:56,651 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 04:17:56,651 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 04:17:56,653 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 04:17:56,654 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 04:17:56,654 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 04:17:56,655 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 04:17:56,655 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 04:17:56,655 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 04:17:56,655 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2018-11-10 04:17:56,655 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 04:17:56,665 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:17:56,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:17:56,671 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:17:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:17:56,674 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:17:56,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:17:56,682 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 [2018-11-10 04:17:56,683 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 40 transitions. cyclomatic complexity: 11 Second operand 4 states. [2018-11-10 04:17:56,687 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 40 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 37 states and 46 transitions. Complement of second has 4 states. [2018-11-10 04:17:56,688 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 [2018-11-10 04:17:56,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 04:17:56,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 31 transitions. [2018-11-10 04:17:56,689 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 10 letters. Loop has 4 letters. [2018-11-10 04:17:56,689 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 04:17:56,689 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 14 letters. Loop has 4 letters. [2018-11-10 04:17:56,689 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 04:17:56,689 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 10 letters. Loop has 8 letters. [2018-11-10 04:17:56,690 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 04:17:56,690 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 46 transitions. [2018-11-10 04:17:56,690 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 04:17:56,690 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 0 states and 0 transitions. [2018-11-10 04:17:56,691 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-10 04:17:56,691 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-10 04:17:56,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-10 04:17:56,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 04:17:56,691 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 04:17:56,691 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 04:17:56,691 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 04:17:56,691 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-10 04:17:56,691 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-10 04:17:56,691 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 04:17:56,691 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-10 04:17:56,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 04:17:56 BoogieIcfgContainer [2018-11-10 04:17:56,697 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 04:17:56,697 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 04:17:56,697 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 04:17:56,698 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 04:17:56,698 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:17:54" (3/4) ... [2018-11-10 04:17:56,700 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 04:17:56,700 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 04:17:56,701 INFO L168 Benchmark]: Toolchain (without parser) took 3038.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -105.9 MB). Peak memory consumption was 31.0 MB. Max. memory is 11.5 GB. [2018-11-10 04:17:56,702 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:17:56,702 INFO L168 Benchmark]: CACSL2BoogieTranslator took 211.36 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 945.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-10 04:17:56,702 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.43 ms. Allocated memory is still 1.0 GB. Free memory was 945.8 MB in the beginning and 943.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 04:17:56,703 INFO L168 Benchmark]: Boogie Preprocessor took 72.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -190.6 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-11-10 04:17:56,703 INFO L168 Benchmark]: RCFGBuilder took 413.79 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: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. [2018-11-10 04:17:56,704 INFO L168 Benchmark]: BuchiAutomizer took 2291.65 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: 39.7 MB). Peak memory consumption was 39.7 MB. Max. memory is 11.5 GB. [2018-11-10 04:17:56,704 INFO L168 Benchmark]: Witness Printer took 2.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:17:56,706 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 211.36 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 945.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.43 ms. Allocated memory is still 1.0 GB. Free memory was 945.8 MB in the beginning and 943.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 72.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -190.6 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 413.79 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: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2291.65 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: 39.7 MB). Peak memory consumption was 39.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (1 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * e + 253 and consists of 4 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 40 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 36 states and ocurred in iteration 3. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 278 SDtfs, 241 SDslu, 36 SDs, 0 SdLazy, 38 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf95 lsp57 ukn100 mio100 lsp100 div605 bol100 ite100 ukn100 eq131 hnf43 smp92 dnf100 smp100 tf105 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 17ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...