./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a7a0a06f-311b-46d8-81ce-8ac185564653/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a7a0a06f-311b-46d8-81ce-8ac185564653/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a7a0a06f-311b-46d8-81ce-8ac185564653/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a7a0a06f-311b-46d8-81ce-8ac185564653/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a7a0a06f-311b-46d8-81ce-8ac185564653/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a7a0a06f-311b-46d8-81ce-8ac185564653/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 8bbbd483a09fdeea97ffdf681e0639d6c4265da0 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:02:02,812 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:02:02,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:02:02,826 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:02:02,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:02:02,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:02:02,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:02:02,831 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:02:02,833 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:02:02,833 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:02:02,834 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:02:02,835 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:02:02,835 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:02:02,836 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:02:02,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:02:02,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:02:02,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:02:02,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:02:02,840 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:02:02,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:02:02,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:02:02,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:02:02,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:02:02,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:02:02,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:02:02,852 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:02:02,852 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:02:02,853 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:02:02,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:02:02,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:02:02,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:02:02,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:02:02,855 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:02:02,856 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:02:02,856 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:02:02,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:02:02,857 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:02:02,857 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:02:02,857 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:02:02,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:02:02,859 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:02:02,859 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a7a0a06f-311b-46d8-81ce-8ac185564653/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 09:02:02,875 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:02:02,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:02:02,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:02:02,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:02:02,880 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:02:02,880 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 09:02:02,880 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 09:02:02,880 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 09:02:02,881 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 09:02:02,881 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 09:02:02,881 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 09:02:02,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:02:02,881 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:02:02,881 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:02:02,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:02:02,882 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:02:02,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:02:02,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 09:02:02,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 09:02:02,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 09:02:02,882 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:02:02,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:02:02,882 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 09:02:02,883 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:02:02,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 09:02:02,883 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:02:02,883 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:02:02,883 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 09:02:02,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:02:02,884 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:02:02,884 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 09:02:02,885 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 09:02:02,885 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/working_dir_a7a0a06f-311b-46d8-81ce-8ac185564653/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 -> 8bbbd483a09fdeea97ffdf681e0639d6c4265da0 [2019-10-22 09:02:02,915 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:02:02,925 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:02:02,928 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:02:02,930 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:02:02,930 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:02:02,931 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a7a0a06f-311b-46d8-81ce-8ac185564653/bin/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c [2019-10-22 09:02:02,982 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a7a0a06f-311b-46d8-81ce-8ac185564653/bin/uautomizer/data/4cd26c3d8/33c2100db7a54229b3056627ba77cf7b/FLAG1329d7425 [2019-10-22 09:02:03,354 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:02:03,355 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a7a0a06f-311b-46d8-81ce-8ac185564653/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c [2019-10-22 09:02:03,360 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a7a0a06f-311b-46d8-81ce-8ac185564653/bin/uautomizer/data/4cd26c3d8/33c2100db7a54229b3056627ba77cf7b/FLAG1329d7425 [2019-10-22 09:02:03,371 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a7a0a06f-311b-46d8-81ce-8ac185564653/bin/uautomizer/data/4cd26c3d8/33c2100db7a54229b3056627ba77cf7b [2019-10-22 09:02:03,374 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:02:03,375 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:02:03,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:03,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:02:03,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:02:03,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:03" (1/1) ... [2019-10-22 09:02:03,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50a2e249 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03, skipping insertion in model container [2019-10-22 09:02:03,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:03" (1/1) ... [2019-10-22 09:02:03,390 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:02:03,424 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:02:03,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:03,719 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:02:03,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:03,779 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:02:03,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03 WrapperNode [2019-10-22 09:02:03,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:03,780 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:03,780 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:02:03,780 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:02:03,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... [2019-10-22 09:02:03,792 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... [2019-10-22 09:02:03,818 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:03,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:02:03,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:02:03,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:02:03,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... [2019-10-22 09:02:03,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... [2019-10-22 09:02:03,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... [2019-10-22 09:02:03,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... [2019-10-22 09:02:03,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... [2019-10-22 09:02:03,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... [2019-10-22 09:02:03,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... [2019-10-22 09:02:03,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:02:03,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:02:03,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:02:03,858 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:02:03,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7a0a06f-311b-46d8-81ce-8ac185564653/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 [2019-10-22 09:02:03,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:02:03,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:02:04,346 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:02:04,346 INFO L284 CfgBuilder]: Removed 28 assume(true) statements. [2019-10-22 09:02:04,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:04 BoogieIcfgContainer [2019-10-22 09:02:04,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:02:04,348 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 09:02:04,349 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 09:02:04,354 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 09:02:04,355 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:02:04,357 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 09:02:03" (1/3) ... [2019-10-22 09:02:04,358 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a3a66af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:02:04, skipping insertion in model container [2019-10-22 09:02:04,358 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:02:04,358 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (2/3) ... [2019-10-22 09:02:04,358 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a3a66af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:02:04, skipping insertion in model container [2019-10-22 09:02:04,358 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:02:04,358 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:04" (3/3) ... [2019-10-22 09:02:04,360 INFO L371 chiAutomizerObserver]: Analyzing ICFG soft_float_1-2a.c.cil.c [2019-10-22 09:02:04,409 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 09:02:04,409 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 09:02:04,410 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 09:02:04,410 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:02:04,411 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:02:04,411 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 09:02:04,411 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:02:04,411 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 09:02:04,430 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2019-10-22 09:02:04,459 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2019-10-22 09:02:04,461 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:04,461 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:04,468 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-10-22 09:02:04,468 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 09:02:04,468 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 09:02:04,469 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2019-10-22 09:02:04,475 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2019-10-22 09:02:04,477 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:04,477 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:04,478 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-10-22 09:02:04,478 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 09:02:04,483 INFO L791 eck$LassoCheckResult]: Stem: 40#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet1;havoc main_#t~nondet1;main_~ea~2 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~b~0;main_~mb~2 := main_#t~nondet3;havoc main_#t~nondet3;main_~eb~2 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 65#L20true assume !(0 == base2flt_~m % 4294967296); 26#L26true assume !(base2flt_~m % 4294967296 < 16777216); 46#L48-2true [2019-10-22 09:02:04,484 INFO L793 eck$LassoCheckResult]: Loop: 46#L48-2true assume !false; 59#L49true assume base2flt_~m % 4294967296 >= 33554432; 79#L50true assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 46#L48-2true [2019-10-22 09:02:04,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:04,489 INFO L82 PathProgramCache]: Analyzing trace with hash 30973, now seen corresponding path program 1 times [2019-10-22 09:02:04,498 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:04,498 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990775442] [2019-10-22 09:02:04,498 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:04,498 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:04,498 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:04,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:04,634 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990775442] [2019-10-22 09:02:04,634 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:04,635 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-10-22 09:02:04,635 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975456762] [2019-10-22 09:02:04,639 INFO L796 eck$LassoCheckResult]: stem already infeasible [2019-10-22 09:02:04,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:04,640 INFO L82 PathProgramCache]: Analyzing trace with hash 73619, now seen corresponding path program 1 times [2019-10-22 09:02:04,640 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:04,640 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009830298] [2019-10-22 09:02:04,640 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:04,641 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:04,641 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:04,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:04,671 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:04,707 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:02:04,708 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:02:04,708 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:02:04,708 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:02:04,708 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 09:02:04,709 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:04,709 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:02:04,709 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:02:04,709 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration1_Loop [2019-10-22 09:02:04,709 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:02:04,709 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:02:04,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,833 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:02:04,834 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7a0a06f-311b-46d8-81ce-8ac185564653/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) [2019-10-22 09:02:04,847 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:02:04,847 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7a0a06f-311b-46d8-81ce-8ac185564653/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) [2019-10-22 09:02:04,860 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 09:02:04,861 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:04,869 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 09:02:04,872 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:02:04,872 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:02:04,872 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:02:04,872 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:02:04,872 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 09:02:04,873 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:04,873 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:02:04,873 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:02:04,873 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration1_Loop [2019-10-22 09:02:04,873 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:02:04,873 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:02:04,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,973 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:02:04,978 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 09:02:04,980 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 [2019-10-22 09:02:04,981 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:02:04,981 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:02:04,982 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:02:04,982 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:02:04,982 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:02:04,984 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:02:04,985 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:02:04,990 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 09:02:04,995 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 09:02:04,995 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-10-22 09:02:04,997 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 09:02:04,997 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 09:02:04,998 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 09:02:04,999 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-10-22 09:02:05,002 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 09:02:05,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:05,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:05,042 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 09:02:05,043 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:05,054 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 09:02:05,054 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:05,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:05,072 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 [2019-10-22 09:02:05,073 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 86 states. Second operand 3 states. [2019-10-22 09:02:05,144 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 86 states.. Second operand 3 states. Result 254 states and 411 transitions. Complement of second has 6 states. [2019-10-22 09:02:05,145 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 [2019-10-22 09:02:05,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 09:02:05,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 269 transitions. [2019-10-22 09:02:05,150 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 269 transitions. Stem has 3 letters. Loop has 3 letters. [2019-10-22 09:02:05,151 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:05,151 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 269 transitions. Stem has 6 letters. Loop has 3 letters. [2019-10-22 09:02:05,151 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:05,152 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 269 transitions. Stem has 3 letters. Loop has 6 letters. [2019-10-22 09:02:05,152 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:05,153 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 254 states and 411 transitions. [2019-10-22 09:02:05,161 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2019-10-22 09:02:05,167 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 254 states to 56 states and 81 transitions. [2019-10-22 09:02:05,168 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2019-10-22 09:02:05,168 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2019-10-22 09:02:05,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 81 transitions. [2019-10-22 09:02:05,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 09:02:05,169 INFO L688 BuchiCegarLoop]: Abstraction has 56 states and 81 transitions. [2019-10-22 09:02:05,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 81 transitions. [2019-10-22 09:02:05,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 45. [2019-10-22 09:02:05,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-10-22 09:02:05,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 69 transitions. [2019-10-22 09:02:05,198 INFO L711 BuchiCegarLoop]: Abstraction has 45 states and 69 transitions. [2019-10-22 09:02:05,199 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:05,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:02:05,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:02:05,203 INFO L87 Difference]: Start difference. First operand 45 states and 69 transitions. Second operand 3 states. [2019-10-22 09:02:05,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:05,257 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2019-10-22 09:02:05,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:02:05,259 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2019-10-22 09:02:05,259 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-10-22 09:02:05,260 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 30 transitions. [2019-10-22 09:02:05,260 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2019-10-22 09:02:05,260 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2019-10-22 09:02:05,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2019-10-22 09:02:05,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:02:05,260 INFO L688 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-10-22 09:02:05,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2019-10-22 09:02:05,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-10-22 09:02:05,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-10-22 09:02:05,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2019-10-22 09:02:05,262 INFO L711 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-10-22 09:02:05,262 INFO L591 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-10-22 09:02:05,263 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 09:02:05,263 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. [2019-10-22 09:02:05,263 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-10-22 09:02:05,263 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:05,263 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:05,264 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:02:05,264 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 09:02:05,264 INFO L791 eck$LassoCheckResult]: Stem: 469#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_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~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_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 468#L20 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 459#L70 base2flt_#res := base2flt_~__retres4~0; 460#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; 465#L20-1 assume !(0 == base2flt_~m % 4294967296); 467#L26-1 assume !(base2flt_~m % 4294967296 < 16777216); 462#L48-5 [2019-10-22 09:02:05,264 INFO L793 eck$LassoCheckResult]: Loop: 462#L48-5 assume !false; 453#L49-1 assume base2flt_~m % 4294967296 >= 33554432; 455#L50-1 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 462#L48-5 [2019-10-22 09:02:05,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:05,269 INFO L82 PathProgramCache]: Analyzing trace with hash 921737699, now seen corresponding path program 1 times [2019-10-22 09:02:05,269 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:05,269 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022126265] [2019-10-22 09:02:05,269 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:05,269 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:05,270 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:05,295 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:05,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:05,295 INFO L82 PathProgramCache]: Analyzing trace with hash 136178, now seen corresponding path program 1 times [2019-10-22 09:02:05,295 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:05,296 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714209882] [2019-10-22 09:02:05,296 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:05,296 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:05,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:05,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:05,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:05,319 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:05,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:05,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1761973968, now seen corresponding path program 1 times [2019-10-22 09:02:05,323 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:05,323 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337353748] [2019-10-22 09:02:05,323 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:05,323 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:05,323 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:05,364 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:05,381 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:02:05,381 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:02:05,381 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:02:05,381 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:02:05,381 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 09:02:05,381 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:05,382 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:02:05,382 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:02:05,382 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration2_Loop [2019-10-22 09:02:05,382 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:02:05,382 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:02:05,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:05,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:05,457 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:02:05,457 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7a0a06f-311b-46d8-81ce-8ac185564653/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) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:05,470 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:02:05,470 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:02:05,478 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:02:05,479 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/working_dir_a7a0a06f-311b-46d8-81ce-8ac185564653/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) [2019-10-22 09:02:05,489 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:02:05,489 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7a0a06f-311b-46d8-81ce-8ac185564653/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) [2019-10-22 09:02:05,500 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 09:02:05,500 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 [2019-10-22 09:02:05,508 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 09:02:05,511 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:02:05,511 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:02:05,511 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:02:05,511 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:02:05,511 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 09:02:05,511 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:05,511 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:02:05,512 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:02:05,512 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration2_Loop [2019-10-22 09:02:05,512 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:02:05,512 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:02:05,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:05,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:05,611 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:02:05,611 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 09:02:05,611 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 [2019-10-22 09:02:05,612 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:02:05,612 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:02:05,612 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:02:05,612 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:02:05,613 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:02:05,613 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:02:05,614 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:02:05,643 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:02:05,643 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 [2019-10-22 09:02:05,644 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:02:05,644 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:02:05,644 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:02:05,644 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:02:05,645 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:02:05,645 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:02:05,645 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:02:05,654 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 09:02:05,657 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 09:02:05,659 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-10-22 09:02:05,660 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 09:02:05,660 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 09:02:05,660 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 09:02:05,660 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-10-22 09:02:05,661 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 09:02:05,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:05,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:05,691 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 09:02:05,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:05,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:05,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 09:02:05,698 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:05,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:05,699 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 [2019-10-22 09:02:05,699 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 30 transitions. cyclomatic complexity: 11 Second operand 3 states. [2019-10-22 09:02:05,719 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. [2019-10-22 09:02:05,719 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 [2019-10-22 09:02:05,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 09:02:05,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2019-10-22 09:02:05,720 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 3 letters. [2019-10-22 09:02:05,720 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:05,720 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 9 letters. Loop has 3 letters. [2019-10-22 09:02:05,720 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:05,721 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 6 letters. [2019-10-22 09:02:05,721 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:05,721 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 50 transitions. [2019-10-22 09:02:05,722 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2019-10-22 09:02:05,722 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 37 states and 46 transitions. [2019-10-22 09:02:05,722 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2019-10-22 09:02:05,723 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2019-10-22 09:02:05,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 46 transitions. [2019-10-22 09:02:05,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 09:02:05,723 INFO L688 BuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2019-10-22 09:02:05,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 46 transitions. [2019-10-22 09:02:05,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 26. [2019-10-22 09:02:05,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-10-22 09:02:05,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2019-10-22 09:02:05,730 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-10-22 09:02:05,730 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-10-22 09:02:05,730 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 09:02:05,730 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2019-10-22 09:02:05,731 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-10-22 09:02:05,731 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:05,731 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:05,731 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:02:05,731 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 09:02:05,731 INFO L791 eck$LassoCheckResult]: Stem: 581#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_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~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_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 580#L20 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 571#L70 base2flt_#res := base2flt_~__retres4~0; 572#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; 577#L20-1 assume !(0 == base2flt_~m % 4294967296); 579#L26-1 assume base2flt_~m % 4294967296 < 16777216; 584#L38-3 [2019-10-22 09:02:05,732 INFO L793 eck$LassoCheckResult]: Loop: 584#L38-3 assume !false; 575#L29-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 576#L38-2 assume base2flt_~m % 4294967296 < 16777216; 584#L38-3 [2019-10-22 09:02:05,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:05,732 INFO L82 PathProgramCache]: Analyzing trace with hash 921737673, now seen corresponding path program 1 times [2019-10-22 09:02:05,732 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:05,732 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938636348] [2019-10-22 09:02:05,735 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:05,735 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:05,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:05,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:05,758 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:05,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:05,759 INFO L82 PathProgramCache]: Analyzing trace with hash 110419, now seen corresponding path program 1 times [2019-10-22 09:02:05,759 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:05,759 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789614053] [2019-10-22 09:02:05,759 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:05,760 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:05,760 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:05,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:05,777 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:05,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:05,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1761173643, now seen corresponding path program 1 times [2019-10-22 09:02:05,779 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:05,779 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413783173] [2019-10-22 09:02:05,779 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:05,779 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:05,779 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:05,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:05,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:05,816 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:05,845 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:02:05,845 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:02:05,845 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:02:05,845 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:02:05,845 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 09:02:05,846 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:05,846 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:02:05,846 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:02:05,846 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration3_Loop [2019-10-22 09:02:05,846 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:02:05,846 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:02:05,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:05,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:05,924 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:02:05,924 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7a0a06f-311b-46d8-81ce-8ac185564653/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) [2019-10-22 09:02:05,938 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:02:05,939 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 [2019-10-22 09:02:05,947 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:02:05,948 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/working_dir_a7a0a06f-311b-46d8-81ce-8ac185564653/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) [2019-10-22 09:02:05,957 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:02:05,957 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 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7a0a06f-311b-46d8-81ce-8ac185564653/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) [2019-10-22 09:02:05,972 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 09:02:05,972 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:05,982 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 09:02:05,985 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:02:05,985 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:02:05,986 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:02:05,986 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:02:05,986 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 09:02:05,986 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:05,986 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:02:05,986 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:02:05,986 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration3_Loop [2019-10-22 09:02:05,986 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:02:05,987 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:02:05,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:06,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:06,147 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:02:06,148 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 09:02:06,148 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 [2019-10-22 09:02:06,149 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:02:06,149 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:02:06,149 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:02:06,149 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:02:06,149 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:02:06,150 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:02:06,150 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:02:06,152 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:02:06,165 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 [2019-10-22 09:02:06,166 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:02:06,166 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:02:06,166 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:02:06,166 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:02:06,166 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:02:06,167 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:02:06,167 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:02:06,170 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 09:02:06,172 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 09:02:06,172 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-10-22 09:02:06,173 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 09:02:06,173 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 09:02:06,173 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 09:02:06,173 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2019-10-22 09:02:06,174 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 09:02:06,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:06,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:06,200 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 09:02:06,201 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:06,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:06,205 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 09:02:06,206 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:06,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:06,231 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 [2019-10-22 09:02:06,231 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 12 Second operand 4 states. [2019-10-22 09:02:06,248 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. [2019-10-22 09:02:06,252 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 [2019-10-22 09:02:06,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-10-22 09:02:06,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2019-10-22 09:02:06,253 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 3 letters. [2019-10-22 09:02:06,253 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:06,253 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 9 letters. Loop has 3 letters. [2019-10-22 09:02:06,253 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:06,254 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 6 letters. [2019-10-22 09:02:06,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:06,254 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 55 transitions. [2019-10-22 09:02:06,255 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-10-22 09:02:06,255 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 41 states and 51 transitions. [2019-10-22 09:02:06,255 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2019-10-22 09:02:06,256 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2019-10-22 09:02:06,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 51 transitions. [2019-10-22 09:02:06,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 09:02:06,256 INFO L688 BuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2019-10-22 09:02:06,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 51 transitions. [2019-10-22 09:02:06,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 29. [2019-10-22 09:02:06,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-10-22 09:02:06,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2019-10-22 09:02:06,262 INFO L711 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-10-22 09:02:06,262 INFO L591 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-10-22 09:02:06,263 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-10-22 09:02:06,263 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 38 transitions. [2019-10-22 09:02:06,263 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-10-22 09:02:06,263 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:06,263 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:06,264 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:06,264 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 09:02:06,264 INFO L791 eck$LassoCheckResult]: Stem: 700#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_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~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_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 699#L20 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 690#L70 base2flt_#res := base2flt_~__retres4~0; 691#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; 696#L20-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 679#L70-1 base2flt_#res := base2flt_~__retres4~0; 680#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; 689#L20-2 assume !(0 == base2flt_~m % 4294967296); 697#L26-2 assume !(base2flt_~m % 4294967296 < 16777216); 686#L48-8 [2019-10-22 09:02:06,264 INFO L793 eck$LassoCheckResult]: Loop: 686#L48-8 assume !false; 677#L49-2 assume base2flt_~m % 4294967296 >= 33554432; 678#L50-2 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 686#L48-8 [2019-10-22 09:02:06,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:06,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951196, now seen corresponding path program 1 times [2019-10-22 09:02:06,267 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:06,267 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157563245] [2019-10-22 09:02:06,267 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:06,268 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:06,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:06,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:06,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:06,291 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:06,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:06,292 INFO L82 PathProgramCache]: Analyzing trace with hash 198737, now seen corresponding path program 1 times [2019-10-22 09:02:06,292 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:06,292 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75834024] [2019-10-22 09:02:06,292 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:06,292 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:06,293 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:06,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:06,301 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:06,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:06,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1766695638, now seen corresponding path program 1 times [2019-10-22 09:02:06,302 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:06,302 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732699907] [2019-10-22 09:02:06,302 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:06,302 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:06,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:06,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:06,321 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:06,363 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:02:06,363 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:02:06,363 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:02:06,363 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:02:06,363 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 09:02:06,363 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:06,363 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:02:06,363 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:02:06,364 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration4_Loop [2019-10-22 09:02:06,364 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:02:06,364 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:02:06,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:06,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:06,445 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:02:06,446 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7a0a06f-311b-46d8-81ce-8ac185564653/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 [2019-10-22 09:02:06,452 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:02:06,452 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7a0a06f-311b-46d8-81ce-8ac185564653/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 [2019-10-22 09:02:06,461 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 09:02:06,464 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:02:06,471 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 09:02:06,474 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:02:06,474 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:02:06,474 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:02:06,474 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:02:06,474 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 09:02:06,474 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:06,474 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:02:06,474 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:02:06,474 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration4_Loop [2019-10-22 09:02:06,474 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:02:06,475 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:02:06,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:06,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:06,572 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:02:06,573 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 09:02:06,573 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 [2019-10-22 09:02:06,574 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:02:06,574 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:02:06,574 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:02:06,574 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:02:06,574 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:02:06,575 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:02:06,575 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:02:06,582 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 09:02:06,590 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 09:02:06,590 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-10-22 09:02:06,590 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 09:02:06,590 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 09:02:06,590 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 09:02:06,591 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-10-22 09:02:06,591 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 09:02:06,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:06,625 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 09:02:06,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:06,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:06,631 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 09:02:06,631 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:06,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:06,632 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 [2019-10-22 09:02:06,632 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 13 Second operand 3 states. [2019-10-22 09:02:06,640 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. [2019-10-22 09:02:06,641 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 [2019-10-22 09:02:06,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 09:02:06,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2019-10-22 09:02:06,642 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 3 letters. [2019-10-22 09:02:06,642 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:06,642 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 12 letters. Loop has 3 letters. [2019-10-22 09:02:06,642 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:06,642 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 6 letters. [2019-10-22 09:02:06,643 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:06,643 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2019-10-22 09:02:06,643 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-10-22 09:02:06,644 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 34 transitions. [2019-10-22 09:02:06,644 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-10-22 09:02:06,644 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-10-22 09:02:06,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 34 transitions. [2019-10-22 09:02:06,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 09:02:06,644 INFO L688 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-10-22 09:02:06,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 34 transitions. [2019-10-22 09:02:06,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-10-22 09:02:06,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-10-22 09:02:06,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2019-10-22 09:02:06,648 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-10-22 09:02:06,649 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-10-22 09:02:06,649 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-10-22 09:02:06,649 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2019-10-22 09:02:06,649 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-10-22 09:02:06,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:06,649 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:06,650 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:06,650 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 09:02:06,650 INFO L791 eck$LassoCheckResult]: Stem: 813#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_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~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_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 812#L20 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 802#L70 base2flt_#res := base2flt_~__retres4~0; 803#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; 809#L20-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 793#L70-1 base2flt_#res := base2flt_~__retres4~0; 794#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; 804#L20-2 assume !(0 == base2flt_~m % 4294967296); 810#L26-2 assume base2flt_~m % 4294967296 < 16777216; 815#L38-5 [2019-10-22 09:02:06,650 INFO L793 eck$LassoCheckResult]: Loop: 815#L38-5 assume !false; 800#L29-2 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 801#L38-4 assume base2flt_~m % 4294967296 < 16777216; 815#L38-5 [2019-10-22 09:02:06,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:06,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951170, now seen corresponding path program 1 times [2019-10-22 09:02:06,650 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:06,651 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131239591] [2019-10-22 09:02:06,651 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:06,651 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:06,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:06,671 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:06,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:06,677 INFO L82 PathProgramCache]: Analyzing trace with hash 172978, now seen corresponding path program 1 times [2019-10-22 09:02:06,677 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:06,677 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215559762] [2019-10-22 09:02:06,677 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:06,677 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:06,677 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:06,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:06,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:06,682 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:06,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:06,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1765895313, now seen corresponding path program 1 times [2019-10-22 09:02:06,682 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:06,683 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390671158] [2019-10-22 09:02:06,683 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:06,683 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:06,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:06,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:06,712 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:06,737 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:02:06,737 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:02:06,737 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:02:06,737 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:02:06,737 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 09:02:06,737 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:06,737 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:02:06,738 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:02:06,738 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration5_Loop [2019-10-22 09:02:06,738 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:02:06,738 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:02:06,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:06,749 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:06,808 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:02:06,808 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7a0a06f-311b-46d8-81ce-8ac185564653/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) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:06,814 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:02:06,814 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7a0a06f-311b-46d8-81ce-8ac185564653/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) [2019-10-22 09:02:06,829 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 09:02:06,829 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 [2019-10-22 09:02:06,835 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 09:02:06,838 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:02:06,838 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:02:06,838 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:02:06,838 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:02:06,838 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 09:02:06,838 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:06,838 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:02:06,838 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:02:06,838 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration5_Loop [2019-10-22 09:02:06,838 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:02:06,839 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:02:06,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:06,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:06,899 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:02:06,899 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 09:02:06,899 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 [2019-10-22 09:02:06,900 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:02:06,900 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:02:06,900 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:02:06,900 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:02:06,900 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:02:06,901 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:02:06,901 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:02:06,903 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 09:02:06,904 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 09:02:06,908 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-10-22 09:02:06,908 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 09:02:06,908 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 09:02:06,909 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 09:02:06,909 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2019-10-22 09:02:06,909 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 09:02:06,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:06,931 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 09:02:06,931 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:06,937 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 09:02:06,937 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:06,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:06,957 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 [2019-10-22 09:02:06,957 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-10-22 09:02:06,966 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. [2019-10-22 09:02:06,966 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 [2019-10-22 09:02:06,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-10-22 09:02:06,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2019-10-22 09:02:06,967 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 3 letters. [2019-10-22 09:02:06,967 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:06,967 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 12 letters. Loop has 3 letters. [2019-10-22 09:02:06,967 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:06,967 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 6 letters. [2019-10-22 09:02:06,968 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:06,968 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 38 transitions. [2019-10-22 09:02:06,968 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 09:02:06,968 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2019-10-22 09:02:06,968 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 09:02:06,968 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 09:02:06,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 09:02:06,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:02:06,969 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:02:06,969 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:02:06,969 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:02:06,969 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-10-22 09:02:06,969 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:02:06,969 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 09:02:06,969 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 09:02:06,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 09:02:06 BoogieIcfgContainer [2019-10-22 09:02:06,977 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 09:02:06,978 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:02:06,978 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:02:06,978 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:02:06,979 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:04" (3/4) ... [2019-10-22 09:02:06,982 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 09:02:06,983 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:02:06,985 INFO L168 Benchmark]: Toolchain (without parser) took 3609.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 945.8 MB in the beginning and 1.0 GB in the end (delta: -81.5 MB). Peak memory consumption was 50.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:06,986 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:06,986 INFO L168 Benchmark]: CACSL2BoogieTranslator took 403.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -175.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:06,988 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.09 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. [2019-10-22 09:02:06,988 INFO L168 Benchmark]: Boogie Preprocessor took 39.55 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. [2019-10-22 09:02:06,989 INFO L168 Benchmark]: RCFGBuilder took 489.87 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: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:06,989 INFO L168 Benchmark]: BuchiAutomizer took 2629.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.5 MB). Peak memory consumption was 52.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:06,990 INFO L168 Benchmark]: Witness Printer took 4.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:06,992 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 403.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -175.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.09 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. * Boogie Preprocessor took 39.55 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 489.87 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: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2629.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.5 MB). Peak memory consumption was 52.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (1 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * e + 253 and consists of 4 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. 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: 272 SDtfs, 240 SDslu, 26 SDs, 0 SdLazy, 38 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf95 lsp57 ukn100 mio100 lsp100 div583 bol100 ite100 ukn100 eq132 hnf44 smp92 dnf100 smp100 tf105 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 19ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...