./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 94419cb5ed7b14b2ed497048686126b88cc40ca2 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:49:55,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:49:55,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:49:55,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:49:55,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:49:55,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:49:55,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:49:55,187 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:49:55,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:49:55,190 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:49:55,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:49:55,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:49:55,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:49:55,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:49:55,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:49:55,195 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:49:55,196 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:49:55,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:49:55,198 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:49:55,200 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:49:55,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:49:55,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:49:55,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:49:55,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:49:55,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:49:55,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:49:55,210 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:49:55,211 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:49:55,211 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:49:55,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:49:55,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:49:55,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:49:55,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:49:55,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:49:55,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:49:55,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:49:55,216 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:49:55,216 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:49:55,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:49:55,217 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:49:55,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:49:55,218 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-25 08:49:55,249 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:49:55,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:49:55,251 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:49:55,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:49:55,252 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:49:55,252 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:49:55,252 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:49:55,252 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:49:55,253 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:49:55,253 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:49:55,254 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:49:55,254 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:49:55,254 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:49:55,254 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:49:55,255 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:49:55,255 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:49:55,255 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:49:55,255 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:49:55,255 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:49:55,255 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:49:55,256 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:49:55,256 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:49:55,256 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:49:55,256 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:49:55,256 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:49:55,257 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:49:55,257 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:49:55,257 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:49:55,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:49:55,257 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:49:55,257 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:49:55,258 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:49:55,259 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94419cb5ed7b14b2ed497048686126b88cc40ca2 [2019-11-25 08:49:55,398 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:49:55,410 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:49:55,414 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:49:55,415 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:49:55,415 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:49:55,416 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c [2019-11-25 08:49:55,470 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/data/547e531fb/dd5b8b286ae9441b9c272fcd4334a1a0/FLAG9f3dded8e [2019-11-25 08:49:55,917 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:49:55,918 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c [2019-11-25 08:49:55,930 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/data/547e531fb/dd5b8b286ae9441b9c272fcd4334a1a0/FLAG9f3dded8e [2019-11-25 08:49:55,942 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/data/547e531fb/dd5b8b286ae9441b9c272fcd4334a1a0 [2019-11-25 08:49:55,944 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:49:55,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:49:55,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:49:55,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:49:55,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:49:55,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:49:55" (1/1) ... [2019-11-25 08:49:55,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15f4d8c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:55, skipping insertion in model container [2019-11-25 08:49:55,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:49:55" (1/1) ... [2019-11-25 08:49:55,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:49:56,007 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:49:56,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:49:56,309 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:49:56,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:49:56,359 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:49:56,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:56 WrapperNode [2019-11-25 08:49:56,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:49:56,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:49:56,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:49:56,360 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:49:56,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:56" (1/1) ... [2019-11-25 08:49:56,376 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:56" (1/1) ... [2019-11-25 08:49:56,403 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:49:56,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:49:56,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:49:56,404 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:49:56,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:56" (1/1) ... [2019-11-25 08:49:56,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:56" (1/1) ... [2019-11-25 08:49:56,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:56" (1/1) ... [2019-11-25 08:49:56,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:56" (1/1) ... [2019-11-25 08:49:56,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:56" (1/1) ... [2019-11-25 08:49:56,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:56" (1/1) ... [2019-11-25 08:49:56,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:56" (1/1) ... [2019-11-25 08:49:56,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:49:56,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:49:56,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:49:56,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:49:56,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:56,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:49:56,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:49:56,989 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:49:56,989 INFO L284 CfgBuilder]: Removed 30 assume(true) statements. [2019-11-25 08:49:56,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:49:56 BoogieIcfgContainer [2019-11-25 08:49:56,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:49:56,991 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:49:56,991 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:49:56,994 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:49:56,995 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:49:56,995 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:49:55" (1/3) ... [2019-11-25 08:49:56,996 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@473021d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:49:56, skipping insertion in model container [2019-11-25 08:49:56,997 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:49:56,997 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:56" (2/3) ... [2019-11-25 08:49:56,997 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@473021d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:49:56, skipping insertion in model container [2019-11-25 08:49:56,997 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:49:56,998 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:49:56" (3/3) ... [2019-11-25 08:49:56,999 INFO L371 chiAutomizerObserver]: Analyzing ICFG soft_float_4-2a.c.cil.c [2019-11-25 08:49:57,042 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:49:57,042 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:49:57,042 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:49:57,042 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:49:57,043 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:49:57,043 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:49:57,043 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:49:57,043 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:49:57,059 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states. [2019-11-25 08:49:57,082 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2019-11-25 08:49:57,083 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:49:57,083 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:49:57,089 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-25 08:49:57,089 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:49:57,090 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:49:57,090 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states. [2019-11-25 08:49:57,095 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2019-11-25 08:49:57,096 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:49:57,096 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:49:57,100 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-25 08:49:57,101 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:49:57,108 INFO L794 eck$LassoCheckResult]: Stem: 36#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_#t~ret9, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet1;havoc main_#t~nondet1;main_~ea~2 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~b~0;main_~mb~2 := main_#t~nondet3;havoc main_#t~nondet3;main_~eb~2 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 58#L20true assume !(0 == base2flt_~m % 4294967296); 23#L26true assume !(base2flt_~m % 4294967296 < 16777216); 41#L48-2true [2019-11-25 08:49:57,108 INFO L796 eck$LassoCheckResult]: Loop: 41#L48-2true assume !false; 53#L49true assume base2flt_~m % 4294967296 >= 33554432; 70#L50true assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 41#L48-2true [2019-11-25 08:49:57,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:57,115 INFO L82 PathProgramCache]: Analyzing trace with hash 30973, now seen corresponding path program 1 times [2019-11-25 08:49:57,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:57,124 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033300959] [2019-11-25 08:49:57,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:57,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:49:57,271 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033300959] [2019-11-25 08:49:57,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:49:57,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-25 08:49:57,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243951390] [2019-11-25 08:49:57,277 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-25 08:49:57,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:57,278 INFO L82 PathProgramCache]: Analyzing trace with hash 73619, now seen corresponding path program 1 times [2019-11-25 08:49:57,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:57,278 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347774843] [2019-11-25 08:49:57,278 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:57,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:57,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:57,311 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:57,352 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:49:57,353 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:49:57,353 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:49:57,353 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:49:57,353 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:49:57,353 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:57,354 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:49:57,354 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:49:57,354 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration1_Loop [2019-11-25 08:49:57,354 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:49:57,354 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:49:57,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:57,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:57,515 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:49:57,516 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:57,524 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:49:57,528 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:57,541 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:49:57,541 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:49:57,553 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:49:57,556 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:49:57,556 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:49:57,556 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:49:57,557 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:49:57,557 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:49:57,557 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:57,557 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:49:57,557 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:49:57,557 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration1_Loop [2019-11-25 08:49:57,557 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:49:57,557 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:49:57,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:57,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:57,679 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:49:57,683 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:49:57,697 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:57,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:57,699 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:57,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:57,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:57,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:57,703 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:49:57,703 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:57,706 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:49:57,716 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-25 08:49:57,716 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:49:57,728 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:49:57,729 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:57,730 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:49:57,730 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-11-25 08:49:57,735 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-25 08:49:57,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:57,792 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:49:57,793 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:49:57,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:57,801 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:49:57,802 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:49:57,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:49:57,815 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-25 08:49:57,816 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 72 states. Second operand 3 states. [2019-11-25 08:49:57,884 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 72 states.. Second operand 3 states. Result 212 states and 334 transitions. Complement of second has 6 states. [2019-11-25 08:49:57,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-25 08:49:57,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:49:57,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 219 transitions. [2019-11-25 08:49:57,889 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 219 transitions. Stem has 3 letters. Loop has 3 letters. [2019-11-25 08:49:57,890 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:49:57,891 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 219 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-25 08:49:57,891 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:49:57,891 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 219 transitions. Stem has 3 letters. Loop has 6 letters. [2019-11-25 08:49:57,891 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:49:57,892 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 212 states and 334 transitions. [2019-11-25 08:49:57,904 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2019-11-25 08:49:57,916 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 212 states to 56 states and 81 transitions. [2019-11-25 08:49:57,918 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2019-11-25 08:49:57,919 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2019-11-25 08:49:57,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 81 transitions. [2019-11-25 08:49:57,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:49:57,920 INFO L688 BuchiCegarLoop]: Abstraction has 56 states and 81 transitions. [2019-11-25 08:49:57,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 81 transitions. [2019-11-25 08:49:57,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 45. [2019-11-25 08:49:57,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-11-25 08:49:57,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 69 transitions. [2019-11-25 08:49:57,959 INFO L711 BuchiCegarLoop]: Abstraction has 45 states and 69 transitions. [2019-11-25 08:49:57,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:49:57,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:49:57,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:49:57,963 INFO L87 Difference]: Start difference. First operand 45 states and 69 transitions. Second operand 3 states. [2019-11-25 08:49:58,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:49:58,006 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2019-11-25 08:49:58,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:49:58,007 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2019-11-25 08:49:58,008 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-11-25 08:49:58,008 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 30 transitions. [2019-11-25 08:49:58,008 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2019-11-25 08:49:58,009 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2019-11-25 08:49:58,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2019-11-25 08:49:58,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:49:58,009 INFO L688 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-25 08:49:58,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2019-11-25 08:49:58,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-25 08:49:58,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-25 08:49:58,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2019-11-25 08:49:58,011 INFO L711 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-25 08:49:58,011 INFO L591 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-25 08:49:58,011 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:49:58,011 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. [2019-11-25 08:49:58,012 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-11-25 08:49:58,012 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:49:58,012 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:49:58,013 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:49:58,013 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:49:58,013 INFO L794 eck$LassoCheckResult]: Stem: 413#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_#t~ret9, 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~nondet1;havoc main_#t~nondet1;main_~ea~2 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~b~0;main_~mb~2 := main_#t~nondet3;havoc main_#t~nondet3;main_~eb~2 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 412#L20 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 403#L70 base2flt_#res := base2flt_~__retres4~0; 404#L71 main_#t~ret5 := base2flt_#res;main_~zero~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 409#L20-1 assume !(0 == base2flt_~m % 4294967296); 411#L26-1 assume !(base2flt_~m % 4294967296 < 16777216); 406#L48-5 [2019-11-25 08:49:58,013 INFO L796 eck$LassoCheckResult]: Loop: 406#L48-5 assume !false; 398#L49-1 assume base2flt_~m % 4294967296 >= 33554432; 400#L50-1 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 406#L48-5 [2019-11-25 08:49:58,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:58,013 INFO L82 PathProgramCache]: Analyzing trace with hash 921737699, now seen corresponding path program 1 times [2019-11-25 08:49:58,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:58,014 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851287702] [2019-11-25 08:49:58,014 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:58,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:58,035 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:58,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:58,036 INFO L82 PathProgramCache]: Analyzing trace with hash 136178, now seen corresponding path program 1 times [2019-11-25 08:49:58,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:58,036 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096296965] [2019-11-25 08:49:58,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:58,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:58,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:58,049 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:58,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:58,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1761973968, now seen corresponding path program 1 times [2019-11-25 08:49:58,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:58,050 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438348217] [2019-11-25 08:49:58,050 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:58,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:58,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:58,076 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:58,109 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:49:58,109 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:49:58,109 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:49:58,109 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:49:58,110 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:49:58,110 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:58,110 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:49:58,110 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:49:58,110 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration2_Loop [2019-11-25 08:49:58,110 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:49:58,110 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:49:58,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:58,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:58,213 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:49:58,213 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:49:58,218 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:49:58,218 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:58,226 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:49:58,226 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=-1} Honda state: {ULTIMATE.start_base2flt_~m=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:49:58,241 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:49:58,241 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:49:58,260 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:49:58,260 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:58,269 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:49:58,271 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:49:58,271 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:49:58,272 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:49:58,272 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:49:58,272 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:49:58,272 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:58,272 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:49:58,272 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:49:58,272 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration2_Loop [2019-11-25 08:49:58,273 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:49:58,273 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:49:58,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:58,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:58,403 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:49:58,403 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:49:58,421 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:58,423 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:58,423 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:58,423 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:58,424 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:58,424 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:58,427 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:49:58,427 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:58,431 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:58,441 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:58,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:58,443 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:58,443 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:58,443 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:58,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:58,449 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:49:58,450 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:49:58,452 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:49:58,455 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-25 08:49:58,455 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:58,459 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:49:58,459 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:49:58,460 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:49:58,460 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-11-25 08:49:58,465 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-25 08:49:58,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:58,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:58,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:49:58,495 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:49:58,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:58,501 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:49:58,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:49:58,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:49:58,502 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-25 08:49:58,503 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 30 transitions. cyclomatic complexity: 11 Second operand 3 states. [2019-11-25 08:49:58,525 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 30 transitions. cyclomatic complexity: 11. Second operand 3 states. Result 40 states and 50 transitions. Complement of second has 5 states. [2019-11-25 08:49:58,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-25 08:49:58,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:49:58,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2019-11-25 08:49:58,529 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-25 08:49:58,529 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:49:58,530 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-25 08:49:58,530 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:49:58,530 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 6 letters. [2019-11-25 08:49:58,530 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:49:58,530 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 50 transitions. [2019-11-25 08:49:58,531 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2019-11-25 08:49:58,532 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 37 states and 46 transitions. [2019-11-25 08:49:58,532 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2019-11-25 08:49:58,532 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2019-11-25 08:49:58,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 46 transitions. [2019-11-25 08:49:58,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:49:58,533 INFO L688 BuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2019-11-25 08:49:58,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 46 transitions. [2019-11-25 08:49:58,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 26. [2019-11-25 08:49:58,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-25 08:49:58,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2019-11-25 08:49:58,535 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-25 08:49:58,535 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-25 08:49:58,535 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-25 08:49:58,536 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2019-11-25 08:49:58,536 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-11-25 08:49:58,536 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:49:58,536 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:49:58,537 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:49:58,537 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:49:58,537 INFO L794 eck$LassoCheckResult]: Stem: 525#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_#t~ret9, 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~nondet1;havoc main_#t~nondet1;main_~ea~2 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~b~0;main_~mb~2 := main_#t~nondet3;havoc main_#t~nondet3;main_~eb~2 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 524#L20 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 515#L70 base2flt_#res := base2flt_~__retres4~0; 516#L71 main_#t~ret5 := base2flt_#res;main_~zero~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 521#L20-1 assume !(0 == base2flt_~m % 4294967296); 523#L26-1 assume base2flt_~m % 4294967296 < 16777216; 528#L38-3 [2019-11-25 08:49:58,537 INFO L796 eck$LassoCheckResult]: Loop: 528#L38-3 assume !false; 519#L29-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 520#L38-2 assume base2flt_~m % 4294967296 < 16777216; 528#L38-3 [2019-11-25 08:49:58,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:58,538 INFO L82 PathProgramCache]: Analyzing trace with hash 921737673, now seen corresponding path program 1 times [2019-11-25 08:49:58,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:58,538 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568807632] [2019-11-25 08:49:58,538 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:58,556 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:58,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:58,556 INFO L82 PathProgramCache]: Analyzing trace with hash 110419, now seen corresponding path program 1 times [2019-11-25 08:49:58,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:58,557 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266082522] [2019-11-25 08:49:58,557 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:58,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:58,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:58,564 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:58,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:58,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1761173643, now seen corresponding path program 1 times [2019-11-25 08:49:58,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:58,565 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317338295] [2019-11-25 08:49:58,565 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:58,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:58,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:58,603 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:58,628 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:49:58,628 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:49:58,629 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:49:58,629 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:49:58,629 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:49:58,629 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:58,629 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:49:58,629 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:49:58,629 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration3_Loop [2019-11-25 08:49:58,629 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:49:58,630 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:49:58,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:58,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:58,709 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:49:58,710 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:49:58,726 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:49:58,726 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:58,736 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:49:58,736 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=0} Honda state: {ULTIMATE.start_base2flt_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:49:58,754 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:49:58,754 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:49:58,773 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:49:58,774 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:49:58,782 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:58,784 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:49:58,784 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:49:58,784 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:49:58,785 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:49:58,785 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:49:58,785 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:58,785 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:49:58,785 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:49:58,785 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration3_Loop [2019-11-25 08:49:58,785 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:49:58,785 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:49:58,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:58,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:58,876 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:49:58,876 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:49:58,884 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:58,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:58,885 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:58,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:58,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:58,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:58,889 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:49:58,889 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:58,896 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:49:58,934 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:58,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:58,935 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:58,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:58,936 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:58,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:58,937 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:49:58,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:49:58,943 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:49:58,949 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-25 08:49:58,949 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:49:58,965 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:49:58,965 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:49:58,965 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:49:58,966 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2019-11-25 08:49:58,968 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:58,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:59,004 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:49:59,005 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:49:59,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:59,010 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:49:59,011 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:49:59,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:49:59,036 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-25 08:49:59,036 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 12 Second operand 4 states. [2019-11-25 08:49:59,052 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 12. Second operand 4 states. Result 44 states and 55 transitions. Complement of second has 5 states. [2019-11-25 08:49:59,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-25 08:49:59,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-25 08:49:59,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2019-11-25 08:49:59,054 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-25 08:49:59,054 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:49:59,054 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-25 08:49:59,054 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:49:59,054 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 6 letters. [2019-11-25 08:49:59,055 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:49:59,055 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 55 transitions. [2019-11-25 08:49:59,056 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-11-25 08:49:59,056 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 41 states and 51 transitions. [2019-11-25 08:49:59,056 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2019-11-25 08:49:59,057 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2019-11-25 08:49:59,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 51 transitions. [2019-11-25 08:49:59,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:49:59,057 INFO L688 BuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2019-11-25 08:49:59,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 51 transitions. [2019-11-25 08:49:59,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 29. [2019-11-25 08:49:59,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-25 08:49:59,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2019-11-25 08:49:59,059 INFO L711 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-11-25 08:49:59,059 INFO L591 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-11-25 08:49:59,059 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-25 08:49:59,059 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 38 transitions. [2019-11-25 08:49:59,060 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-25 08:49:59,060 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:49:59,060 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:49:59,060 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:49:59,061 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:49:59,061 INFO L794 eck$LassoCheckResult]: Stem: 644#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_#t~ret9, 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~nondet1;havoc main_#t~nondet1;main_~ea~2 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~b~0;main_~mb~2 := main_#t~nondet3;havoc main_#t~nondet3;main_~eb~2 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 643#L20 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 634#L70 base2flt_#res := base2flt_~__retres4~0; 635#L71 main_#t~ret5 := base2flt_#res;main_~zero~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 640#L20-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 623#L70-1 base2flt_#res := base2flt_~__retres4~0; 624#L71-1 main_#t~ret6 := base2flt_#res;main_~a~0 := main_#t~ret6;havoc main_#t~ret6;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 633#L20-2 assume !(0 == base2flt_~m % 4294967296); 641#L26-2 assume !(base2flt_~m % 4294967296 < 16777216); 630#L48-8 [2019-11-25 08:49:59,061 INFO L796 eck$LassoCheckResult]: Loop: 630#L48-8 assume !false; 621#L49-2 assume base2flt_~m % 4294967296 >= 33554432; 622#L50-2 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 630#L48-8 [2019-11-25 08:49:59,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:59,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951196, now seen corresponding path program 1 times [2019-11-25 08:49:59,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:59,062 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749414767] [2019-11-25 08:49:59,062 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:59,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:59,104 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:59,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:59,104 INFO L82 PathProgramCache]: Analyzing trace with hash 198737, now seen corresponding path program 1 times [2019-11-25 08:49:59,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:59,106 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206882106] [2019-11-25 08:49:59,106 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:59,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:59,126 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:59,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:59,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1766695638, now seen corresponding path program 1 times [2019-11-25 08:49:59,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:59,127 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202779489] [2019-11-25 08:49:59,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:59,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:59,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:59,166 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:59,198 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:49:59,198 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:49:59,198 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:49:59,198 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:49:59,198 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:49:59,198 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:59,198 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:49:59,198 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:49:59,198 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration4_Loop [2019-11-25 08:49:59,199 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:49:59,199 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:49:59,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:59,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:59,293 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:49:59,293 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:49:59,311 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:49:59,312 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:59,329 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:49:59,329 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:49:59,337 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:49:59,340 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:49:59,340 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:49:59,340 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:49:59,340 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:49:59,340 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:49:59,340 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:59,340 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:49:59,340 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:49:59,341 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration4_Loop [2019-11-25 08:49:59,341 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:49:59,341 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:49:59,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:59,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:59,447 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:49:59,447 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:49:59,458 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:59,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:59,461 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:59,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:59,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:59,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:59,462 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:49:59,462 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:59,467 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:49:59,471 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-25 08:49:59,471 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:49:59,477 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:49:59,477 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:49:59,477 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:49:59,478 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-11-25 08:49:59,480 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:59,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:59,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:59,527 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:49:59,527 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:49:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:59,536 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:49:59,537 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:49:59,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:49:59,537 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-25 08:49:59,537 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 13 Second operand 3 states. [2019-11-25 08:49:59,545 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 13. Second operand 3 states. Result 32 states and 42 transitions. Complement of second has 4 states. [2019-11-25 08:49:59,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-25 08:49:59,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:49:59,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2019-11-25 08:49:59,546 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-25 08:49:59,546 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:49:59,547 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 12 letters. Loop has 3 letters. [2019-11-25 08:49:59,547 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:49:59,547 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 6 letters. [2019-11-25 08:49:59,547 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:49:59,547 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2019-11-25 08:49:59,548 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-25 08:49:59,548 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 34 transitions. [2019-11-25 08:49:59,549 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-11-25 08:49:59,549 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-11-25 08:49:59,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 34 transitions. [2019-11-25 08:49:59,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:49:59,549 INFO L688 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-25 08:49:59,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 34 transitions. [2019-11-25 08:49:59,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-11-25 08:49:59,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-25 08:49:59,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2019-11-25 08:49:59,551 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-25 08:49:59,551 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-25 08:49:59,551 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-25 08:49:59,551 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2019-11-25 08:49:59,552 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-25 08:49:59,552 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:49:59,552 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:49:59,552 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:49:59,553 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:49:59,553 INFO L794 eck$LassoCheckResult]: Stem: 757#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_#t~ret9, 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~nondet1;havoc main_#t~nondet1;main_~ea~2 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~b~0;main_~mb~2 := main_#t~nondet3;havoc main_#t~nondet3;main_~eb~2 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 756#L20 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 747#L70 base2flt_#res := base2flt_~__retres4~0; 748#L71 main_#t~ret5 := base2flt_#res;main_~zero~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 753#L20-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 737#L70-1 base2flt_#res := base2flt_~__retres4~0; 738#L71-1 main_#t~ret6 := base2flt_#res;main_~a~0 := main_#t~ret6;havoc main_#t~ret6;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 746#L20-2 assume !(0 == base2flt_~m % 4294967296); 754#L26-2 assume base2flt_~m % 4294967296 < 16777216; 759#L38-5 [2019-11-25 08:49:59,553 INFO L796 eck$LassoCheckResult]: Loop: 759#L38-5 assume !false; 744#L29-2 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 745#L38-4 assume base2flt_~m % 4294967296 < 16777216; 759#L38-5 [2019-11-25 08:49:59,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:59,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951170, now seen corresponding path program 1 times [2019-11-25 08:49:59,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:59,554 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087507103] [2019-11-25 08:49:59,554 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:59,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:59,587 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:59,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:59,588 INFO L82 PathProgramCache]: Analyzing trace with hash 172978, now seen corresponding path program 1 times [2019-11-25 08:49:59,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:59,589 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990565657] [2019-11-25 08:49:59,589 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:59,608 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:59,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:59,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1765895313, now seen corresponding path program 1 times [2019-11-25 08:49:59,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:59,608 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462447509] [2019-11-25 08:49:59,609 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:59,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:59,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:59,628 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:59,647 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:49:59,647 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:49:59,647 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:49:59,648 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:49:59,648 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:49:59,648 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:59,648 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:49:59,648 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:49:59,648 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration5_Loop [2019-11-25 08:49:59,648 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:49:59,648 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:49:59,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:59,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:59,724 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:49:59,724 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:59,733 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:49:59,733 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:49:59,757 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:49:59,757 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:59,765 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:49:59,767 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:49:59,767 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:49:59,767 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:49:59,767 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:49:59,768 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:49:59,768 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:59,768 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:49:59,768 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:49:59,768 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration5_Loop [2019-11-25 08:49:59,768 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:49:59,768 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:49:59,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:59,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:59,848 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:49:59,848 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:49:59,853 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:59,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:59,855 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:59,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:59,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:59,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:59,856 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:49:59,856 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:59,859 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:49:59,865 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-25 08:49:59,865 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bcc8a881-2357-4461-8c95-4699990df6d4/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:59,871 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:49:59,871 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:49:59,872 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:49:59,872 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2019-11-25 08:49:59,873 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-25 08:49:59,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:59,899 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:49:59,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:49:59,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:59,904 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:49:59,905 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:49:59,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:49:59,919 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-25 08:49:59,920 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-11-25 08:49:59,928 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 30 states and 38 transitions. Complement of second has 4 states. [2019-11-25 08:49:59,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-25 08:49:59,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-25 08:49:59,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2019-11-25 08:49:59,929 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-25 08:49:59,930 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:49:59,930 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 12 letters. Loop has 3 letters. [2019-11-25 08:49:59,930 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:49:59,930 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 6 letters. [2019-11-25 08:49:59,930 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:49:59,931 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 38 transitions. [2019-11-25 08:49:59,931 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:49:59,931 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2019-11-25 08:49:59,931 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:49:59,931 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:49:59,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:49:59,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:49:59,932 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:49:59,932 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:49:59,932 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:49:59,932 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-25 08:49:59,932 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:49:59,932 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:49:59,932 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-25 08:49:59,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:49:59 BoogieIcfgContainer [2019-11-25 08:49:59,939 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:49:59,939 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:49:59,939 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:49:59,940 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:49:59,940 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:49:56" (3/4) ... [2019-11-25 08:49:59,943 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:49:59,943 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:49:59,945 INFO L168 Benchmark]: Toolchain (without parser) took 3999.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 944.6 MB in the beginning and 997.1 MB in the end (delta: -52.5 MB). Peak memory consumption was 84.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:59,946 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:49:59,947 INFO L168 Benchmark]: CACSL2BoogieTranslator took 413.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -187.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:59,947 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.12 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:59,948 INFO L168 Benchmark]: Boogie Preprocessor took 31.63 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. [2019-11-25 08:49:59,948 INFO L168 Benchmark]: RCFGBuilder took 555.05 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: 35.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:59,949 INFO L168 Benchmark]: BuchiAutomizer took 2948.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 997.1 MB in the end (delta: 93.9 MB). Peak memory consumption was 93.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:59,949 INFO L168 Benchmark]: Witness Printer took 4.30 ms. Allocated memory is still 1.2 GB. Free memory is still 997.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:49:59,952 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 413.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -187.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.12 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.63 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. * RCFGBuilder took 555.05 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: 35.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2948.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 997.1 MB in the end (delta: 93.9 MB). Peak memory consumption was 93.9 MB. Max. memory is 11.5 GB. * Witness Printer took 4.30 ms. Allocated memory is still 1.2 GB. Free memory is still 997.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (1 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * e + 253 and consists of 4 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. 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, 34 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 29 states and ocurred in iteration 3. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 247 SDtfs, 215 SDslu, 26 SDs, 0 SdLazy, 38 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf95 lsp57 ukn100 mio100 lsp100 div583 bol100 ite100 ukn100 eq132 hnf44 smp92 dnf100 smp100 tf105 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 45ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...