./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-3a.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_10dcd2b1-7bdf-43e5-851e-f75911e2a2b2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_10dcd2b1-7bdf-43e5-851e-f75911e2a2b2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_10dcd2b1-7bdf-43e5-851e-f75911e2a2b2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_10dcd2b1-7bdf-43e5-851e-f75911e2a2b2/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_10dcd2b1-7bdf-43e5-851e-f75911e2a2b2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_10dcd2b1-7bdf-43e5-851e-f75911e2a2b2/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 0e04f2515dd5c7ce697460622800d33932bf1903 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:02:30,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:02:30,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:02:30,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:02:30,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:02:30,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:02:30,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:02:30,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:02:30,264 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:02:30,266 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:02:30,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:02:30,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:02:30,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:02:30,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:02:30,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:02:30,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:02:30,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:02:30,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:02:30,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:02:30,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:02:30,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:02:30,289 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:02:30,291 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:02:30,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:02:30,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:02:30,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:02:30,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:02:30,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:02:30,296 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:02:30,297 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:02:30,297 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:02:30,297 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:02:30,298 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:02:30,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:02:30,302 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:02:30,302 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:02:30,303 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:02:30,303 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:02:30,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:02:30,304 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:02:30,304 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:02:30,305 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_10dcd2b1-7bdf-43e5-851e-f75911e2a2b2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 09:02:30,320 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:02:30,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:02:30,321 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:02:30,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:02:30,322 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:02:30,322 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 09:02:30,322 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 09:02:30,322 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 09:02:30,322 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 09:02:30,323 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 09:02:30,323 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 09:02:30,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:02:30,323 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:02:30,323 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:02:30,323 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:02:30,324 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:02:30,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:02:30,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 09:02:30,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 09:02:30,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 09:02:30,324 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:02:30,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:02:30,325 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 09:02:30,325 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:02:30,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 09:02:30,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:02:30,326 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:02:30,326 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 09:02:30,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:02:30,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:02:30,328 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 09:02:30,329 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 09:02:30,329 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_10dcd2b1-7bdf-43e5-851e-f75911e2a2b2/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 -> 0e04f2515dd5c7ce697460622800d33932bf1903 [2019-10-22 09:02:30,351 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:02:30,360 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:02:30,363 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:02:30,364 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:02:30,364 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:02:30,365 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_10dcd2b1-7bdf-43e5-851e-f75911e2a2b2/bin/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2019-10-22 09:02:30,419 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_10dcd2b1-7bdf-43e5-851e-f75911e2a2b2/bin/uautomizer/data/4d2583dfa/598f7eb00a6d4a2f9b72ca9709b5e505/FLAGb6ab80a66 [2019-10-22 09:02:30,841 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:02:30,841 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_10dcd2b1-7bdf-43e5-851e-f75911e2a2b2/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2019-10-22 09:02:30,849 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_10dcd2b1-7bdf-43e5-851e-f75911e2a2b2/bin/uautomizer/data/4d2583dfa/598f7eb00a6d4a2f9b72ca9709b5e505/FLAGb6ab80a66 [2019-10-22 09:02:31,198 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_10dcd2b1-7bdf-43e5-851e-f75911e2a2b2/bin/uautomizer/data/4d2583dfa/598f7eb00a6d4a2f9b72ca9709b5e505 [2019-10-22 09:02:31,200 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:02:31,201 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:02:31,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:31,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:02:31,206 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:02:31,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:31" (1/1) ... [2019-10-22 09:02:31,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21ffc131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:31, skipping insertion in model container [2019-10-22 09:02:31,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:31" (1/1) ... [2019-10-22 09:02:31,217 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:02:31,246 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:02:31,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:31,549 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:02:31,596 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:31,609 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:02:31,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:31 WrapperNode [2019-10-22 09:02:31,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:31,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:31,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:02:31,612 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:02:31,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:31" (1/1) ... [2019-10-22 09:02:31,634 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:31" (1/1) ... [2019-10-22 09:02:31,666 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:31,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:02:31,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:02:31,667 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:02:31,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:31" (1/1) ... [2019-10-22 09:02:31,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:31" (1/1) ... [2019-10-22 09:02:31,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:31" (1/1) ... [2019-10-22 09:02:31,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:31" (1/1) ... [2019-10-22 09:02:31,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:31" (1/1) ... [2019-10-22 09:02:31,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:31" (1/1) ... [2019-10-22 09:02:31,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:31" (1/1) ... [2019-10-22 09:02:31,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:02:31,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:02:31,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:02:31,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:02:31,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_10dcd2b1-7bdf-43e5-851e-f75911e2a2b2/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 09:02:31,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:02:31,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:02:32,312 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:02:32,312 INFO L284 CfgBuilder]: Removed 30 assume(true) statements. [2019-10-22 09:02:32,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:32 BoogieIcfgContainer [2019-10-22 09:02:32,314 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:02:32,314 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 09:02:32,314 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 09:02:32,318 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 09:02:32,319 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:02:32,319 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 09:02:31" (1/3) ... [2019-10-22 09:02:32,320 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d2fa47c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:02:32, skipping insertion in model container [2019-10-22 09:02:32,320 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:02:32,321 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:31" (2/3) ... [2019-10-22 09:02:32,321 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d2fa47c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:02:32, skipping insertion in model container [2019-10-22 09:02:32,321 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:02:32,321 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:32" (3/3) ... [2019-10-22 09:02:32,323 INFO L371 chiAutomizerObserver]: Analyzing ICFG soft_float_1-3a.c.cil.c [2019-10-22 09:02:32,360 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 09:02:32,360 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 09:02:32,360 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 09:02:32,360 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:02:32,360 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:02:32,361 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 09:02:32,361 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:02:32,361 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 09:02:32,377 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states. [2019-10-22 09:02:32,402 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2019-10-22 09:02:32,402 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:32,402 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:32,407 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-10-22 09:02:32,407 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 09:02:32,407 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 09:02:32,408 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states. [2019-10-22 09:02:32,413 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2019-10-22 09:02:32,413 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:32,413 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:32,413 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-10-22 09:02:32,414 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 09:02:32,421 INFO L791 eck$LassoCheckResult]: Stem: 46#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 40#L19true assume !(0 == base2flt_~m % 4294967296); 27#L25true assume !(base2flt_~m % 4294967296 < 16777216); 19#L47-2true [2019-10-22 09:02:32,422 INFO L793 eck$LassoCheckResult]: Loop: 19#L47-2true assume !false; 33#L48true assume base2flt_~m % 4294967296 >= 33554432; 60#L49true assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 19#L47-2true [2019-10-22 09:02:32,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:32,427 INFO L82 PathProgramCache]: Analyzing trace with hash 30973, now seen corresponding path program 1 times [2019-10-22 09:02:32,432 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:32,432 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239151953] [2019-10-22 09:02:32,433 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:32,433 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:32,433 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:32,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:32,579 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 09:02:32,579 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239151953] [2019-10-22 09:02:32,580 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:32,580 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-10-22 09:02:32,580 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579085503] [2019-10-22 09:02:32,586 INFO L796 eck$LassoCheckResult]: stem already infeasible [2019-10-22 09:02:32,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:32,586 INFO L82 PathProgramCache]: Analyzing trace with hash 73619, now seen corresponding path program 1 times [2019-10-22 09:02:32,586 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:32,587 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285282736] [2019-10-22 09:02:32,587 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:32,587 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:32,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:32,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:32,630 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:32,675 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:02:32,676 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:02:32,676 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:02:32,676 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:02:32,676 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 09:02:32,677 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:32,677 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:02:32,677 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:02:32,677 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration1_Loop [2019-10-22 09:02:32,678 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:02:32,678 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:02:32,699 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 09:02:32,710 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 09:02:32,810 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:02:32,810 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_10dcd2b1-7bdf-43e5-851e-f75911e2a2b2/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:32,815 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:02:32,816 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_10dcd2b1-7bdf-43e5-851e-f75911e2a2b2/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:32,824 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 09:02:32,824 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:02:32,831 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 09:02:32,833 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:02:32,833 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:02:32,833 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:02:32,833 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:02:32,833 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 09:02:32,834 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:32,834 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:02:32,834 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:02:32,834 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration1_Loop [2019-10-22 09:02:32,834 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:02:32,834 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:02:32,835 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 09:02:32,842 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 09:02:32,919 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:02:32,924 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 09:02:32,925 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 09:02:32,926 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:02:32,926 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:02:32,927 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:02:32,927 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:02:32,927 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:02:32,928 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:02:32,928 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:02:32,934 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 09:02:32,939 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 09:02:32,939 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-10-22 09:02:32,941 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 09:02:32,941 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 09:02:32,942 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 09:02:32,942 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 09:02:32,945 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 09:02:32,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:32,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:32,984 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 09:02:32,986 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:32,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:32,995 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 09:02:32,996 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:32,996 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 09:02:33,012 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 09:02:33,013 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 89 states. Second operand 3 states. [2019-10-22 09:02:33,105 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 89 states.. Second operand 3 states. Result 264 states and 424 transitions. Complement of second has 6 states. [2019-10-22 09:02:33,109 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 09:02:33,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 09:02:33,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 277 transitions. [2019-10-22 09:02:33,114 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 277 transitions. Stem has 3 letters. Loop has 3 letters. [2019-10-22 09:02:33,115 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:33,115 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 277 transitions. Stem has 6 letters. Loop has 3 letters. [2019-10-22 09:02:33,115 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:33,115 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 277 transitions. Stem has 3 letters. Loop has 6 letters. [2019-10-22 09:02:33,116 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:33,116 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 264 states and 424 transitions. [2019-10-22 09:02:33,126 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2019-10-22 09:02:33,131 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 264 states to 56 states and 81 transitions. [2019-10-22 09:02:33,132 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2019-10-22 09:02:33,132 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2019-10-22 09:02:33,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 81 transitions. [2019-10-22 09:02:33,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 09:02:33,133 INFO L688 BuchiCegarLoop]: Abstraction has 56 states and 81 transitions. [2019-10-22 09:02:33,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 81 transitions. [2019-10-22 09:02:33,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 45. [2019-10-22 09:02:33,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-10-22 09:02:33,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 69 transitions. [2019-10-22 09:02:33,162 INFO L711 BuchiCegarLoop]: Abstraction has 45 states and 69 transitions. [2019-10-22 09:02:33,162 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:33,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:02:33,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:02:33,166 INFO L87 Difference]: Start difference. First operand 45 states and 69 transitions. Second operand 3 states. [2019-10-22 09:02:33,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:33,200 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2019-10-22 09:02:33,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:02:33,201 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2019-10-22 09:02:33,201 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-10-22 09:02:33,202 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 30 transitions. [2019-10-22 09:02:33,202 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2019-10-22 09:02:33,202 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2019-10-22 09:02:33,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2019-10-22 09:02:33,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:02:33,203 INFO L688 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-10-22 09:02:33,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2019-10-22 09:02:33,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-10-22 09:02:33,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-10-22 09:02:33,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2019-10-22 09:02:33,205 INFO L711 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-10-22 09:02:33,205 INFO L591 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-10-22 09:02:33,205 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 09:02:33,205 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. [2019-10-22 09:02:33,205 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-10-22 09:02:33,205 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:33,206 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:33,206 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:02:33,206 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 09:02:33,206 INFO L791 eck$LassoCheckResult]: Stem: 483#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 481#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 469#L69 base2flt_#res := base2flt_~__retres4~0; 470#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 477#L19-1 assume !(0 == base2flt_~m % 4294967296); 480#L25-1 assume !(base2flt_~m % 4294967296 < 16777216); 474#L47-5 [2019-10-22 09:02:33,206 INFO L793 eck$LassoCheckResult]: Loop: 474#L47-5 assume !false; 462#L48-1 assume base2flt_~m % 4294967296 >= 33554432; 464#L49-1 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 474#L47-5 [2019-10-22 09:02:33,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:33,207 INFO L82 PathProgramCache]: Analyzing trace with hash 921737699, now seen corresponding path program 1 times [2019-10-22 09:02:33,207 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:33,207 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688874045] [2019-10-22 09:02:33,207 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:33,207 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:33,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:33,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:33,227 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:33,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:33,227 INFO L82 PathProgramCache]: Analyzing trace with hash 136178, now seen corresponding path program 1 times [2019-10-22 09:02:33,227 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:33,228 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629365972] [2019-10-22 09:02:33,228 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:33,228 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:33,228 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:33,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:33,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:33,239 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:33,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:33,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1761973968, now seen corresponding path program 1 times [2019-10-22 09:02:33,240 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:33,240 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057157358] [2019-10-22 09:02:33,240 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:33,240 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:33,240 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:33,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:33,269 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:33,293 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:02:33,293 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:02:33,293 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:02:33,293 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:02:33,294 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 09:02:33,294 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:33,294 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:02:33,294 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:02:33,294 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration2_Loop [2019-10-22 09:02:33,294 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:02:33,294 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:02:33,295 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 09:02:33,307 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 09:02:33,392 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:02:33,392 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_10dcd2b1-7bdf-43e5-851e-f75911e2a2b2/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 09:02:33,400 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:02:33,400 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:33,410 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:02:33,411 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_10dcd2b1-7bdf-43e5-851e-f75911e2a2b2/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 09:02:33,419 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:02:33,419 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_10dcd2b1-7bdf-43e5-851e-f75911e2a2b2/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 09:02:33,430 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 09:02:33,431 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 09:02:33,443 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 09:02:33,446 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:02:33,446 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:02:33,446 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:02:33,446 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:02:33,446 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 09:02:33,447 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:33,447 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:02:33,447 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:02:33,447 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration2_Loop [2019-10-22 09:02:33,447 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:02:33,447 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:02:33,448 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 09:02:33,462 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 09:02:33,556 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:02:33,556 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 09:02:33,557 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 09:02:33,558 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:02:33,558 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:02:33,558 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:02:33,558 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:02:33,559 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:02:33,560 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:02:33,560 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:02:33,577 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:02:33,591 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 09:02:33,592 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:02:33,592 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:02:33,592 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:02:33,592 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:02:33,593 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:02:33,593 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:02:33,594 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:02:33,599 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 09:02:33,602 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 09:02:33,603 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-10-22 09:02:33,603 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 09:02:33,603 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 09:02:33,603 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 09:02:33,604 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 09:02:33,604 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 09:02:33,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:33,640 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 09:02:33,641 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:33,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:33,651 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 09:02:33,652 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:33,652 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 09:02:33,653 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 09:02:33,653 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 30 transitions. cyclomatic complexity: 11 Second operand 3 states. [2019-10-22 09:02:33,679 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 09:02:33,682 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 09:02:33,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 09:02:33,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2019-10-22 09:02:33,683 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 3 letters. [2019-10-22 09:02:33,684 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:33,684 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 9 letters. Loop has 3 letters. [2019-10-22 09:02:33,684 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:33,684 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 6 letters. [2019-10-22 09:02:33,684 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:33,685 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 50 transitions. [2019-10-22 09:02:33,686 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2019-10-22 09:02:33,686 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 37 states and 46 transitions. [2019-10-22 09:02:33,686 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2019-10-22 09:02:33,687 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2019-10-22 09:02:33,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 46 transitions. [2019-10-22 09:02:33,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 09:02:33,687 INFO L688 BuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2019-10-22 09:02:33,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 46 transitions. [2019-10-22 09:02:33,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 26. [2019-10-22 09:02:33,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-10-22 09:02:33,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2019-10-22 09:02:33,690 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-10-22 09:02:33,690 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-10-22 09:02:33,690 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 09:02:33,690 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2019-10-22 09:02:33,692 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-10-22 09:02:33,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:33,693 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:33,693 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:02:33,693 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 09:02:33,693 INFO L791 eck$LassoCheckResult]: Stem: 595#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 593#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 581#L69 base2flt_#res := base2flt_~__retres4~0; 582#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 589#L19-1 assume !(0 == base2flt_~m % 4294967296); 592#L25-1 assume base2flt_~m % 4294967296 < 16777216; 597#L37-3 [2019-10-22 09:02:33,694 INFO L793 eck$LassoCheckResult]: Loop: 597#L37-3 assume !false; 587#L28-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 588#L37-2 assume base2flt_~m % 4294967296 < 16777216; 597#L37-3 [2019-10-22 09:02:33,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:33,694 INFO L82 PathProgramCache]: Analyzing trace with hash 921737673, now seen corresponding path program 1 times [2019-10-22 09:02:33,694 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:33,695 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48934408] [2019-10-22 09:02:33,695 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:33,695 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:33,695 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:33,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:33,712 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:33,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:33,713 INFO L82 PathProgramCache]: Analyzing trace with hash 110419, now seen corresponding path program 1 times [2019-10-22 09:02:33,713 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:33,713 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248988280] [2019-10-22 09:02:33,714 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:33,714 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:33,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:33,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:33,725 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:33,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:33,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1761173643, now seen corresponding path program 1 times [2019-10-22 09:02:33,726 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:33,726 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597538744] [2019-10-22 09:02:33,726 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:33,729 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:33,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:33,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:33,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:33,769 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:33,803 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:02:33,803 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:02:33,804 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:02:33,804 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:02:33,804 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 09:02:33,804 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:33,804 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:02:33,804 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:02:33,804 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration3_Loop [2019-10-22 09:02:33,805 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:02:33,805 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:02:33,806 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 09:02:33,816 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 09:02:33,895 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:02:33,896 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_10dcd2b1-7bdf-43e5-851e-f75911e2a2b2/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 09:02:33,909 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:02:33,909 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 09:02:33,918 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:02:33,918 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_10dcd2b1-7bdf-43e5-851e-f75911e2a2b2/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) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:33,935 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:02:33,936 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_10dcd2b1-7bdf-43e5-851e-f75911e2a2b2/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 09:02:33,949 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 09:02:33,949 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 09:02:33,987 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 09:02:33,989 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:02:33,989 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:02:33,989 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:02:33,989 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:02:33,989 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 09:02:33,989 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:33,990 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:02:33,990 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:02:33,990 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration3_Loop [2019-10-22 09:02:33,990 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:02:33,990 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:02:33,991 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 09:02:34,045 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 09:02:34,152 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:02:34,153 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 09:02:34,153 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 09:02:34,154 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:02:34,154 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:02:34,154 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:02:34,154 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:02:34,155 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:02:34,155 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:02:34,156 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:02:34,158 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:02:34,159 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 09:02:34,159 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:02:34,160 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:02:34,160 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:02:34,160 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:02:34,160 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:02:34,161 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:02:34,161 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:02:34,164 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 09:02:34,167 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 09:02:34,167 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-10-22 09:02:34,167 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 09:02:34,168 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 09:02:34,168 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 09:02:34,168 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 09:02:34,168 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 09:02:34,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:34,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:34,199 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 09:02:34,199 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:34,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:34,205 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 09:02:34,206 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:34,230 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 09:02:34,230 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 09:02:34,231 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 12 Second operand 4 states. [2019-10-22 09:02:34,244 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 09:02:34,244 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 09:02:34,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-10-22 09:02:34,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2019-10-22 09:02:34,245 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 3 letters. [2019-10-22 09:02:34,245 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:34,245 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 9 letters. Loop has 3 letters. [2019-10-22 09:02:34,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:34,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 6 letters. [2019-10-22 09:02:34,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:34,246 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 55 transitions. [2019-10-22 09:02:34,247 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-10-22 09:02:34,248 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 41 states and 51 transitions. [2019-10-22 09:02:34,248 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2019-10-22 09:02:34,248 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2019-10-22 09:02:34,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 51 transitions. [2019-10-22 09:02:34,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 09:02:34,249 INFO L688 BuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2019-10-22 09:02:34,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 51 transitions. [2019-10-22 09:02:34,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 29. [2019-10-22 09:02:34,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-10-22 09:02:34,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2019-10-22 09:02:34,254 INFO L711 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-10-22 09:02:34,254 INFO L591 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-10-22 09:02:34,254 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-10-22 09:02:34,254 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 38 transitions. [2019-10-22 09:02:34,255 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-10-22 09:02:34,259 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:34,259 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:34,259 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:34,260 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 09:02:34,260 INFO L791 eck$LassoCheckResult]: Stem: 715#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 712#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 699#L69 base2flt_#res := base2flt_~__retres4~0; 700#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 708#L19-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 703#L69-1 base2flt_#res := base2flt_~__retres4~0; 701#L70-1 main_#t~ret5 := base2flt_#res;main_~a~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 702#L19-2 assume !(0 == base2flt_~m % 4294967296); 709#L25-2 assume !(base2flt_~m % 4294967296 < 16777216); 696#L47-8 [2019-10-22 09:02:34,260 INFO L793 eck$LassoCheckResult]: Loop: 696#L47-8 assume !false; 710#L48-2 assume base2flt_~m % 4294967296 >= 33554432; 695#L49-2 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 696#L47-8 [2019-10-22 09:02:34,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:34,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951196, now seen corresponding path program 1 times [2019-10-22 09:02:34,261 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:34,261 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172268830] [2019-10-22 09:02:34,261 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:34,261 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:34,261 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:34,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:34,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:34,301 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:34,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:34,302 INFO L82 PathProgramCache]: Analyzing trace with hash 198737, now seen corresponding path program 1 times [2019-10-22 09:02:34,302 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:34,303 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016800140] [2019-10-22 09:02:34,303 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:34,303 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:34,303 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:34,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:34,318 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:34,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:34,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1766695638, now seen corresponding path program 1 times [2019-10-22 09:02:34,319 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:34,320 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695776510] [2019-10-22 09:02:34,320 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:34,320 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:34,320 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:34,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:34,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:34,342 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:34,365 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:02:34,365 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:02:34,365 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:02:34,365 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:02:34,365 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 09:02:34,366 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:34,366 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:02:34,366 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:02:34,366 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration4_Loop [2019-10-22 09:02:34,366 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:02:34,366 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:02:34,367 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 09:02:34,399 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 09:02:34,485 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:02:34,486 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_10dcd2b1-7bdf-43e5-851e-f75911e2a2b2/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) [2019-10-22 09:02:34,496 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:02:34,496 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_10dcd2b1-7bdf-43e5-851e-f75911e2a2b2/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 09:02:34,509 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 09:02:34,509 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:02:34,516 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 09:02:34,519 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:02:34,520 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:02:34,520 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:02:34,520 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:02:34,520 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 09:02:34,520 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:34,520 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:02:34,520 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:02:34,520 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration4_Loop [2019-10-22 09:02:34,520 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:02:34,520 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:02:34,521 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 09:02:34,529 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 09:02:34,603 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:02:34,603 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 09:02:34,604 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 09:02:34,604 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:02:34,604 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:02:34,605 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:02:34,605 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:02:34,605 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:02:34,605 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:02:34,605 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:02:34,612 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 09:02:34,614 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 09:02:34,614 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-10-22 09:02:34,615 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 09:02:34,615 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 09:02:34,615 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 09:02:34,615 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 09:02:34,616 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 09:02:34,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:34,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:34,642 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 09:02:34,643 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:34,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:34,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 09:02:34,648 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:34,649 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 09:02:34,649 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 09:02:34,649 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 13 Second operand 3 states. [2019-10-22 09:02:34,656 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 09:02:34,656 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 09:02:34,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 09:02:34,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2019-10-22 09:02:34,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 3 letters. [2019-10-22 09:02:34,657 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:34,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 12 letters. Loop has 3 letters. [2019-10-22 09:02:34,657 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:34,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 6 letters. [2019-10-22 09:02:34,657 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:34,658 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2019-10-22 09:02:34,658 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-10-22 09:02:34,659 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 34 transitions. [2019-10-22 09:02:34,659 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-10-22 09:02:34,659 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-10-22 09:02:34,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 34 transitions. [2019-10-22 09:02:34,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 09:02:34,659 INFO L688 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-10-22 09:02:34,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 34 transitions. [2019-10-22 09:02:34,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-10-22 09:02:34,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-10-22 09:02:34,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2019-10-22 09:02:34,661 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-10-22 09:02:34,661 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-10-22 09:02:34,661 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-10-22 09:02:34,661 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2019-10-22 09:02:34,662 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-10-22 09:02:34,662 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:34,662 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:34,663 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:34,663 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 09:02:34,663 INFO L791 eck$LassoCheckResult]: Stem: 828#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 825#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 813#L69 base2flt_#res := base2flt_~__retres4~0; 814#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 822#L19-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 817#L69-1 base2flt_#res := base2flt_~__retres4~0; 815#L70-1 main_#t~ret5 := base2flt_#res;main_~a~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 816#L19-2 assume !(0 == base2flt_~m % 4294967296); 823#L25-2 assume base2flt_~m % 4294967296 < 16777216; 827#L37-5 [2019-10-22 09:02:34,663 INFO L793 eck$LassoCheckResult]: Loop: 827#L37-5 assume !false; 811#L28-2 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 812#L37-4 assume base2flt_~m % 4294967296 < 16777216; 827#L37-5 [2019-10-22 09:02:34,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:34,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951170, now seen corresponding path program 1 times [2019-10-22 09:02:34,664 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:34,664 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028395648] [2019-10-22 09:02:34,664 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:34,664 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:34,664 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:34,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:34,692 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:34,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:34,692 INFO L82 PathProgramCache]: Analyzing trace with hash 172978, now seen corresponding path program 1 times [2019-10-22 09:02:34,692 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:34,693 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65794004] [2019-10-22 09:02:34,693 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:34,693 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:34,693 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:34,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:34,707 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:34,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:34,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1765895313, now seen corresponding path program 1 times [2019-10-22 09:02:34,708 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:34,708 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983852674] [2019-10-22 09:02:34,708 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:34,708 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:34,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:34,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:34,746 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:34,764 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:02:34,764 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:02:34,764 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:02:34,764 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:02:34,764 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 09:02:34,764 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:34,764 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:02:34,765 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:02:34,765 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration5_Loop [2019-10-22 09:02:34,765 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:02:34,765 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:02:34,766 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 09:02:34,771 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 09:02:34,827 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:02:34,827 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_10dcd2b1-7bdf-43e5-851e-f75911e2a2b2/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 09:02:34,831 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:02:34,832 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_10dcd2b1-7bdf-43e5-851e-f75911e2a2b2/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 09:02:34,842 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 09:02:34,842 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 09:02:34,849 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 09:02:34,852 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:02:34,852 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:02:34,852 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:02:34,852 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:02:34,852 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 09:02:34,852 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:34,852 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:02:34,852 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:02:34,852 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration5_Loop [2019-10-22 09:02:34,853 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:02:34,853 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:02:34,854 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 09:02:34,862 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 09:02:34,918 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:02:34,918 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 09:02:34,918 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 09:02:34,919 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:02:34,919 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:02:34,919 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:02:34,919 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:02:34,919 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:02:34,920 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:02:34,920 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:02:34,922 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 09:02:34,927 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 09:02:34,927 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-10-22 09:02:34,928 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 09:02:34,928 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 09:02:34,928 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 09:02:34,928 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 09:02:34,928 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 09:02:34,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:34,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:34,950 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 09:02:34,950 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:34,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:34,955 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 09:02:34,955 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:34,974 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 09:02:34,975 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 09:02:34,975 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-10-22 09:02:34,982 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 09:02:34,982 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 09:02:34,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-10-22 09:02:34,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2019-10-22 09:02:34,983 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 3 letters. [2019-10-22 09:02:34,983 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:34,983 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 12 letters. Loop has 3 letters. [2019-10-22 09:02:34,983 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:34,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 6 letters. [2019-10-22 09:02:34,984 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:34,984 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 38 transitions. [2019-10-22 09:02:34,984 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 09:02:34,984 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2019-10-22 09:02:34,984 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 09:02:34,985 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 09:02:34,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 09:02:34,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:02:34,985 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:02:34,985 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:02:34,985 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:02:34,985 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-10-22 09:02:34,985 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:02:34,985 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 09:02:34,985 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 09:02:34,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 09:02:34 BoogieIcfgContainer [2019-10-22 09:02:34,993 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 09:02:34,993 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:02:34,993 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:02:34,994 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:02:34,994 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:32" (3/4) ... [2019-10-22 09:02:34,997 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 09:02:34,998 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:02:35,000 INFO L168 Benchmark]: Toolchain (without parser) took 3798.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 173.5 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -128.1 MB). Peak memory consumption was 45.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:35,002 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:35,002 INFO L168 Benchmark]: CACSL2BoogieTranslator took 409.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 173.5 MB). Free memory was 941.0 MB in the beginning and 1.2 GB in the end (delta: -227.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:35,004 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:35,004 INFO L168 Benchmark]: Boogie Preprocessor took 52.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:35,005 INFO L168 Benchmark]: RCFGBuilder took 594.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 40.0 MB). Peak memory consumption was 40.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:35,005 INFO L168 Benchmark]: BuchiAutomizer took 2678.73 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: 53.8 MB). Peak memory consumption was 53.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:35,005 INFO L168 Benchmark]: Witness Printer took 5.04 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 09:02:35,008 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 409.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 173.5 MB). Free memory was 941.0 MB in the beginning and 1.2 GB in the end (delta: -227.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 594.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 40.0 MB). Peak memory consumption was 40.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2678.73 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: 53.8 MB). Peak memory consumption was 53.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (1 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * e + 253 and consists of 4 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 2.0s. 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: 275 SDtfs, 243 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: 17ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...