./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/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 fa5701cbf2aecb18d72b6e5744b88307065d31ab .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 16:19:38,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:19:38,292 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:19:38,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:19:38,302 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:19:38,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:19:38,303 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:19:38,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:19:38,306 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:19:38,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:19:38,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:19:38,308 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:19:38,309 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:19:38,309 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:19:38,310 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:19:38,311 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:19:38,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:19:38,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:19:38,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:19:38,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:19:38,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:19:38,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:19:38,317 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:19:38,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:19:38,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:19:38,319 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:19:38,320 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:19:38,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:19:38,320 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:19:38,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:19:38,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:19:38,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:19:38,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:19:38,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:19:38,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:19:38,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:19:38,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:19:38,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:19:38,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:19:38,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:19:38,325 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:19:38,325 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 16:19:38,335 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:19:38,336 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:19:38,336 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:19:38,336 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:19:38,337 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:19:38,337 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 16:19:38,337 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 16:19:38,337 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 16:19:38,337 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 16:19:38,337 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 16:19:38,337 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 16:19:38,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:19:38,338 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:19:38,338 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 16:19:38,338 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:19:38,338 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:19:38,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:19:38,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 16:19:38,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 16:19:38,338 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 16:19:38,338 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:19:38,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:19:38,339 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 16:19:38,339 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:19:38,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 16:19:38,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:19:38,339 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:19:38,339 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 16:19:38,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:19:38,340 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 16:19:38,340 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:19:38,340 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 16:19:38,341 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 16:19:38,341 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/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 -> fa5701cbf2aecb18d72b6e5744b88307065d31ab [2019-12-07 16:19:38,440 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:19:38,448 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:19:38,450 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:19:38,451 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:19:38,451 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:19:38,452 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/bin/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2019-12-07 16:19:38,488 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/bin/uautomizer/data/c99bf79b5/301ca8215dd4430eb643ce54c9f85a1e/FLAG9ab2cd04a [2019-12-07 16:19:38,947 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:19:38,948 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2019-12-07 16:19:38,953 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/bin/uautomizer/data/c99bf79b5/301ca8215dd4430eb643ce54c9f85a1e/FLAG9ab2cd04a [2019-12-07 16:19:38,962 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/bin/uautomizer/data/c99bf79b5/301ca8215dd4430eb643ce54c9f85a1e [2019-12-07 16:19:38,964 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:19:38,965 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:19:38,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:19:38,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:19:38,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:19:38,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:19:38" (1/1) ... [2019-12-07 16:19:38,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@553e53bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:38, skipping insertion in model container [2019-12-07 16:19:38,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:19:38" (1/1) ... [2019-12-07 16:19:38,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:19:38,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:19:39,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:19:39,155 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:19:39,178 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:19:39,187 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:19:39,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:39 WrapperNode [2019-12-07 16:19:39,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:19:39,188 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:19:39,188 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:19:39,188 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:19:39,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:39" (1/1) ... [2019-12-07 16:19:39,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:39" (1/1) ... [2019-12-07 16:19:39,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:19:39,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:19:39,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:19:39,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:19:39,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:39" (1/1) ... [2019-12-07 16:19:39,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:39" (1/1) ... [2019-12-07 16:19:39,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:39" (1/1) ... [2019-12-07 16:19:39,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:39" (1/1) ... [2019-12-07 16:19:39,230 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:39" (1/1) ... [2019-12-07 16:19:39,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:39" (1/1) ... [2019-12-07 16:19:39,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:39" (1/1) ... [2019-12-07 16:19:39,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:19:39,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:19:39,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:19:39,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:19:39,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/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 [2019-12-07 16:19:39,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:19:39,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:19:39,536 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:19:39,537 INFO L287 CfgBuilder]: Removed 34 assume(true) statements. [2019-12-07 16:19:39,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:19:39 BoogieIcfgContainer [2019-12-07 16:19:39,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:19:39,538 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 16:19:39,538 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 16:19:39,540 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 16:19:39,540 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 16:19:39,541 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 04:19:38" (1/3) ... [2019-12-07 16:19:39,541 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5834817d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 04:19:39, skipping insertion in model container [2019-12-07 16:19:39,541 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 16:19:39,541 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:39" (2/3) ... [2019-12-07 16:19:39,542 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5834817d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 04:19:39, skipping insertion in model container [2019-12-07 16:19:39,542 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 16:19:39,542 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:19:39" (3/3) ... [2019-12-07 16:19:39,543 INFO L371 chiAutomizerObserver]: Analyzing ICFG soft_float_4-3a.c.cil.c [2019-12-07 16:19:39,570 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 16:19:39,570 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 16:19:39,570 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 16:19:39,571 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:19:39,571 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:19:39,571 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 16:19:39,571 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:19:39,571 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 16:19:39,581 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states. [2019-12-07 16:19:39,598 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2019-12-07 16:19:39,598 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:19:39,598 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:19:39,602 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 16:19:39,602 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:19:39,602 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 16:19:39,602 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states. [2019-12-07 16:19:39,606 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2019-12-07 16:19:39,606 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:19:39,606 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:19:39,607 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 16:19:39,607 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:19:39,612 INFO L794 eck$LassoCheckResult]: Stem: 44#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 40#L19true assume !(0 == base2flt_~m % 4294967296); 28#L25true assume !(base2flt_~m % 4294967296 < 16777216); 21#L47-2true [2019-12-07 16:19:39,612 INFO L796 eck$LassoCheckResult]: Loop: 21#L47-2true assume !false; 34#L48true assume base2flt_~m % 4294967296 >= 33554432; 56#L49true assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 21#L47-2true [2019-12-07 16:19:39,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:19:39,616 INFO L82 PathProgramCache]: Analyzing trace with hash 30973, now seen corresponding path program 1 times [2019-12-07 16:19:39,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:19:39,621 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779223351] [2019-12-07 16:19:39,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:19:39,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:19:39,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:19:39,718 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779223351] [2019-12-07 16:19:39,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:19:39,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 16:19:39,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530082879] [2019-12-07 16:19:39,722 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 16:19:39,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:19:39,723 INFO L82 PathProgramCache]: Analyzing trace with hash 73619, now seen corresponding path program 1 times [2019-12-07 16:19:39,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:19:39,723 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194909565] [2019-12-07 16:19:39,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:19:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:19:39,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:19:39,746 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:19:39,772 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:19:39,773 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:19:39,773 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:19:39,773 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:19:39,773 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 16:19:39,773 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:19:39,773 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:19:39,773 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:19:39,773 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration1_Loop [2019-12-07 16:19:39,773 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:19:39,774 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:19:39,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:19:39,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:19:39,865 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:19:39,866 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/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 [2019-12-07 16:19:39,870 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:19:39,871 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/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 [2019-12-07 16:19:39,878 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:19:39,878 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:19:39,884 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 16:19:39,885 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:19:39,885 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:19:39,885 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:19:39,885 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:19:39,885 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 16:19:39,885 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:19:39,886 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:19:39,886 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:19:39,886 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration1_Loop [2019-12-07 16:19:39,886 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:19:39,886 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:19:39,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:19:39,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:19:39,953 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:19:39,956 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:19:39,960 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 [2019-12-07 16:19:39,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:19:39,962 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:19:39,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:19:39,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:19:39,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:19:39,964 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:19:39,964 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:19:39,966 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 16:19:39,970 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 16:19:39,971 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/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) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:19:39,974 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 16:19:39,974 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 16:19:39,975 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 16:19:39,975 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-12-07 16:19:39,978 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 16:19:39,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:19:40,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:19:40,005 INFO L264 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:19:40,006 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:19:40,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:19:40,013 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 16:19:40,013 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:19:40,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:19:40,024 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 [2019-12-07 16:19:40,025 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 78 states. Second operand 3 states. [2019-12-07 16:19:40,074 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 78 states.. Second operand 3 states. Result 232 states and 360 transitions. Complement of second has 6 states. [2019-12-07 16:19:40,074 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 [2019-12-07 16:19:40,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 16:19:40,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 235 transitions. [2019-12-07 16:19:40,078 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 235 transitions. Stem has 3 letters. Loop has 3 letters. [2019-12-07 16:19:40,078 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:19:40,079 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 235 transitions. Stem has 6 letters. Loop has 3 letters. [2019-12-07 16:19:40,079 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:19:40,079 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 235 transitions. Stem has 3 letters. Loop has 6 letters. [2019-12-07 16:19:40,079 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:19:40,080 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 232 states and 360 transitions. [2019-12-07 16:19:40,086 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2019-12-07 16:19:40,090 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 232 states to 56 states and 81 transitions. [2019-12-07 16:19:40,091 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2019-12-07 16:19:40,091 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2019-12-07 16:19:40,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 81 transitions. [2019-12-07 16:19:40,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 16:19:40,092 INFO L688 BuchiCegarLoop]: Abstraction has 56 states and 81 transitions. [2019-12-07 16:19:40,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 81 transitions. [2019-12-07 16:19:40,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 45. [2019-12-07 16:19:40,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-12-07 16:19:40,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 69 transitions. [2019-12-07 16:19:40,113 INFO L711 BuchiCegarLoop]: Abstraction has 45 states and 69 transitions. [2019-12-07 16:19:40,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:19:40,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:19:40,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:19:40,116 INFO L87 Difference]: Start difference. First operand 45 states and 69 transitions. Second operand 3 states. [2019-12-07 16:19:40,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:19:40,143 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2019-12-07 16:19:40,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:19:40,144 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2019-12-07 16:19:40,144 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-12-07 16:19:40,145 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 30 transitions. [2019-12-07 16:19:40,145 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2019-12-07 16:19:40,145 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2019-12-07 16:19:40,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2019-12-07 16:19:40,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 16:19:40,145 INFO L688 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-12-07 16:19:40,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2019-12-07 16:19:40,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-12-07 16:19:40,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-12-07 16:19:40,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2019-12-07 16:19:40,147 INFO L711 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-12-07 16:19:40,147 INFO L591 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-12-07 16:19:40,147 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 16:19:40,147 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. [2019-12-07 16:19:40,148 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-12-07 16:19:40,148 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:19:40,148 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:19:40,148 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 16:19:40,148 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:19:40,148 INFO L794 eck$LassoCheckResult]: Stem: 439#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;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; 438#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 426#L69 base2flt_#res := base2flt_~__retres4~0; 427#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; 434#L19-1 assume !(0 == base2flt_~m % 4294967296); 437#L25-1 assume !(base2flt_~m % 4294967296 < 16777216); 431#L47-5 [2019-12-07 16:19:40,148 INFO L796 eck$LassoCheckResult]: Loop: 431#L47-5 assume !false; 421#L48-1 assume base2flt_~m % 4294967296 >= 33554432; 423#L49-1 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 431#L47-5 [2019-12-07 16:19:40,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:19:40,149 INFO L82 PathProgramCache]: Analyzing trace with hash 921737699, now seen corresponding path program 1 times [2019-12-07 16:19:40,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:19:40,149 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123758731] [2019-12-07 16:19:40,149 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:19:40,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:19:40,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:19:40,163 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:19:40,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:19:40,163 INFO L82 PathProgramCache]: Analyzing trace with hash 136178, now seen corresponding path program 1 times [2019-12-07 16:19:40,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:19:40,164 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876686972] [2019-12-07 16:19:40,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:19:40,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:19:40,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:19:40,173 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:19:40,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:19:40,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1761973968, now seen corresponding path program 1 times [2019-12-07 16:19:40,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:19:40,174 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799989445] [2019-12-07 16:19:40,174 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:19:40,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:19:40,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:19:40,192 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:19:40,210 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:19:40,210 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:19:40,210 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:19:40,210 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:19:40,210 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 16:19:40,210 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:19:40,210 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:19:40,211 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:19:40,211 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration2_Loop [2019-12-07 16:19:40,211 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:19:40,211 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:19:40,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:19:40,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:19:40,270 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:19:40,271 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:19:40,273 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:19:40,273 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:19:40,279 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:19:40,279 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=-1} Honda state: {ULTIMATE.start_base2flt_~m=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:19:40,283 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:19:40,283 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/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 [2019-12-07 16:19:40,289 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:19:40,289 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:19:40,295 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 16:19:40,296 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:19:40,296 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:19:40,296 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:19:40,296 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:19:40,296 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 16:19:40,296 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:19:40,296 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:19:40,296 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:19:40,296 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration2_Loop [2019-12-07 16:19:40,296 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:19:40,296 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:19:40,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:19:40,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:19:40,354 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:19:40,354 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/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) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:19:40,357 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 [2019-12-07 16:19:40,358 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:19:40,358 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:19:40,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:19:40,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:19:40,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:19:40,361 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:19:40,361 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:19:40,363 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:19:40,368 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 [2019-12-07 16:19:40,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:19:40,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:19:40,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:19:40,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:19:40,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:19:40,370 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:19:40,371 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:19:40,373 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 16:19:40,376 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 16:19:40,376 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/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 [2019-12-07 16:19:40,379 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 16:19:40,379 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 16:19:40,379 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 16:19:40,379 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-12-07 16:19:40,380 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 16:19:40,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:19:40,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:19:40,400 INFO L264 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:19:40,400 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:19:40,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:19:40,403 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 16:19:40,404 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:19:40,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:19:40,404 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 [2019-12-07 16:19:40,404 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 30 transitions. cyclomatic complexity: 11 Second operand 3 states. [2019-12-07 16:19:40,413 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. [2019-12-07 16:19:40,413 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 [2019-12-07 16:19:40,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 16:19:40,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2019-12-07 16:19:40,414 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 3 letters. [2019-12-07 16:19:40,414 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:19:40,414 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 9 letters. Loop has 3 letters. [2019-12-07 16:19:40,414 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:19:40,414 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 6 letters. [2019-12-07 16:19:40,415 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:19:40,415 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 50 transitions. [2019-12-07 16:19:40,415 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2019-12-07 16:19:40,416 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 37 states and 46 transitions. [2019-12-07 16:19:40,416 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2019-12-07 16:19:40,416 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2019-12-07 16:19:40,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 46 transitions. [2019-12-07 16:19:40,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 16:19:40,417 INFO L688 BuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2019-12-07 16:19:40,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 46 transitions. [2019-12-07 16:19:40,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 26. [2019-12-07 16:19:40,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-07 16:19:40,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2019-12-07 16:19:40,418 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-12-07 16:19:40,418 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-12-07 16:19:40,418 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 16:19:40,419 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2019-12-07 16:19:40,419 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-12-07 16:19:40,419 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:19:40,419 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:19:40,419 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 16:19:40,420 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:19:40,420 INFO L794 eck$LassoCheckResult]: Stem: 553#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;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; 550#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 540#L69 base2flt_#res := base2flt_~__retres4~0; 541#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; 546#L19-1 assume !(0 == base2flt_~m % 4294967296); 549#L25-1 assume base2flt_~m % 4294967296 < 16777216; 554#L37-3 [2019-12-07 16:19:40,420 INFO L796 eck$LassoCheckResult]: Loop: 554#L37-3 assume !false; 544#L28-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 545#L37-2 assume base2flt_~m % 4294967296 < 16777216; 554#L37-3 [2019-12-07 16:19:40,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:19:40,420 INFO L82 PathProgramCache]: Analyzing trace with hash 921737673, now seen corresponding path program 1 times [2019-12-07 16:19:40,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:19:40,420 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271926111] [2019-12-07 16:19:40,420 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:19:40,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:19:40,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:19:40,432 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:19:40,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:19:40,432 INFO L82 PathProgramCache]: Analyzing trace with hash 110419, now seen corresponding path program 1 times [2019-12-07 16:19:40,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:19:40,432 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825656855] [2019-12-07 16:19:40,432 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:19:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:19:40,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:19:40,437 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:19:40,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:19:40,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1761173643, now seen corresponding path program 1 times [2019-12-07 16:19:40,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:19:40,438 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453025258] [2019-12-07 16:19:40,438 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:19:40,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:19:40,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:19:40,454 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:19:40,468 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:19:40,469 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:19:40,469 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:19:40,469 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:19:40,469 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 16:19:40,469 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:19:40,469 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:19:40,469 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:19:40,469 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration3_Loop [2019-12-07 16:19:40,469 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:19:40,469 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:19:40,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:19:40,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:19:40,515 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:19:40,515 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/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 [2019-12-07 16:19:40,518 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:19:40,518 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:19:40,523 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:19:40,523 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=0} Honda state: {ULTIMATE.start_base2flt_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/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) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:19:40,527 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:19:40,527 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:19:40,533 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:19:40,533 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:19:40,539 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 16:19:40,539 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:19:40,540 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:19:40,540 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:19:40,540 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:19:40,540 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 16:19:40,540 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:19:40,540 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:19:40,540 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:19:40,540 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration3_Loop [2019-12-07 16:19:40,540 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:19:40,541 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:19:40,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:19:40,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:19:40,587 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:19:40,588 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:19:40,591 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 [2019-12-07 16:19:40,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:19:40,592 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:19:40,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:19:40,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:19:40,592 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:19:40,593 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:19:40,594 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:19:40,596 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:19:40,600 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 [2019-12-07 16:19:40,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:19:40,601 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:19:40,601 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:19:40,601 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:19:40,601 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:19:40,602 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:19:40,602 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:19:40,604 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 16:19:40,605 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 16:19:40,605 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:19:40,608 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 16:19:40,609 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 16:19:40,609 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 16:19:40,609 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2019-12-07 16:19:40,610 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 16:19:40,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:19:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:19:40,627 INFO L264 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:19:40,627 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:19:40,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:19:40,631 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 16:19:40,631 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:19:40,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:19:40,657 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 [2019-12-07 16:19:40,657 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 12 Second operand 4 states. [2019-12-07 16:19:40,667 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. [2019-12-07 16:19:40,667 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 [2019-12-07 16:19:40,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 16:19:40,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2019-12-07 16:19:40,668 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 3 letters. [2019-12-07 16:19:40,668 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:19:40,668 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 9 letters. Loop has 3 letters. [2019-12-07 16:19:40,668 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:19:40,668 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 6 letters. [2019-12-07 16:19:40,669 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:19:40,669 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 55 transitions. [2019-12-07 16:19:40,670 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-12-07 16:19:40,671 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 41 states and 51 transitions. [2019-12-07 16:19:40,671 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2019-12-07 16:19:40,671 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2019-12-07 16:19:40,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 51 transitions. [2019-12-07 16:19:40,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 16:19:40,671 INFO L688 BuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2019-12-07 16:19:40,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 51 transitions. [2019-12-07 16:19:40,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 29. [2019-12-07 16:19:40,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-07 16:19:40,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2019-12-07 16:19:40,673 INFO L711 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-12-07 16:19:40,673 INFO L591 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-12-07 16:19:40,673 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 16:19:40,673 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 38 transitions. [2019-12-07 16:19:40,674 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-12-07 16:19:40,674 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:19:40,674 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:19:40,674 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:19:40,674 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:19:40,675 INFO L794 eck$LassoCheckResult]: Stem: 672#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;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; 669#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 656#L69 base2flt_#res := base2flt_~__retres4~0; 657#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; 665#L19-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 660#L69-1 base2flt_#res := base2flt_~__retres4~0; 658#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; 659#L19-2 assume !(0 == base2flt_~m % 4294967296); 666#L25-2 assume !(base2flt_~m % 4294967296 < 16777216); 648#L47-8 [2019-12-07 16:19:40,675 INFO L796 eck$LassoCheckResult]: Loop: 648#L47-8 assume !false; 667#L48-2 assume base2flt_~m % 4294967296 >= 33554432; 647#L49-2 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 648#L47-8 [2019-12-07 16:19:40,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:19:40,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951196, now seen corresponding path program 1 times [2019-12-07 16:19:40,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:19:40,675 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532698569] [2019-12-07 16:19:40,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:19:40,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:19:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:19:40,689 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:19:40,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:19:40,689 INFO L82 PathProgramCache]: Analyzing trace with hash 198737, now seen corresponding path program 1 times [2019-12-07 16:19:40,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:19:40,689 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086598078] [2019-12-07 16:19:40,689 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:19:40,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:19:40,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:19:40,698 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:19:40,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:19:40,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1766695638, now seen corresponding path program 1 times [2019-12-07 16:19:40,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:19:40,699 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223515342] [2019-12-07 16:19:40,699 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:19:40,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:19:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:19:40,720 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:19:40,736 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:19:40,737 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:19:40,737 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:19:40,737 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:19:40,737 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 16:19:40,737 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:19:40,737 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:19:40,737 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:19:40,737 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration4_Loop [2019-12-07 16:19:40,737 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:19:40,737 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:19:40,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:19:40,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:19:40,796 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:19:40,796 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:19:40,800 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:19:40,800 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:19:40,807 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:19:40,807 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:19:40,812 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 16:19:40,814 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:19:40,815 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:19:40,815 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:19:40,815 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:19:40,815 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 16:19:40,815 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:19:40,815 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:19:40,815 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:19:40,815 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration4_Loop [2019-12-07 16:19:40,815 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:19:40,815 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:19:40,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:19:40,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:19:40,876 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:19:40,876 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:19:40,880 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 [2019-12-07 16:19:40,881 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:19:40,881 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:19:40,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:19:40,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:19:40,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:19:40,882 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:19:40,882 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:19:40,884 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 16:19:40,887 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 16:19:40,887 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:19:40,890 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 16:19:40,890 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 16:19:40,890 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 16:19:40,890 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-12-07 16:19:40,892 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 16:19:40,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:19:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:19:40,908 INFO L264 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:19:40,909 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:19:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:19:40,912 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 16:19:40,912 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:19:40,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:19:40,913 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 [2019-12-07 16:19:40,913 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 13 Second operand 3 states. [2019-12-07 16:19:40,917 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. [2019-12-07 16:19:40,918 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 [2019-12-07 16:19:40,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 16:19:40,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2019-12-07 16:19:40,918 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 3 letters. [2019-12-07 16:19:40,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:19:40,918 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 12 letters. Loop has 3 letters. [2019-12-07 16:19:40,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:19:40,918 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 6 letters. [2019-12-07 16:19:40,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:19:40,919 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2019-12-07 16:19:40,919 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 16:19:40,919 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 34 transitions. [2019-12-07 16:19:40,920 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-12-07 16:19:40,920 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-12-07 16:19:40,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 34 transitions. [2019-12-07 16:19:40,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 16:19:40,920 INFO L688 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-12-07 16:19:40,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 34 transitions. [2019-12-07 16:19:40,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-12-07 16:19:40,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-07 16:19:40,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2019-12-07 16:19:40,921 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-12-07 16:19:40,921 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-12-07 16:19:40,921 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 16:19:40,921 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2019-12-07 16:19:40,922 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 16:19:40,922 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:19:40,922 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:19:40,922 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:19:40,922 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:19:40,922 INFO L794 eck$LassoCheckResult]: Stem: 784#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;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; 782#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 770#L69 base2flt_#res := base2flt_~__retres4~0; 771#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := 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; 779#L19-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 774#L69-1 base2flt_#res := base2flt_~__retres4~0; 772#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; 773#L19-2 assume !(0 == base2flt_~m % 4294967296); 780#L25-2 assume base2flt_~m % 4294967296 < 16777216; 785#L37-5 [2019-12-07 16:19:40,922 INFO L796 eck$LassoCheckResult]: Loop: 785#L37-5 assume !false; 768#L28-2 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 769#L37-4 assume base2flt_~m % 4294967296 < 16777216; 785#L37-5 [2019-12-07 16:19:40,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:19:40,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951170, now seen corresponding path program 1 times [2019-12-07 16:19:40,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:19:40,923 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463829730] [2019-12-07 16:19:40,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:19:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:19:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:19:40,933 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:19:40,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:19:40,934 INFO L82 PathProgramCache]: Analyzing trace with hash 172978, now seen corresponding path program 1 times [2019-12-07 16:19:40,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:19:40,934 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261203743] [2019-12-07 16:19:40,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:19:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:19:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:19:40,938 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:19:40,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:19:40,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1765895313, now seen corresponding path program 1 times [2019-12-07 16:19:40,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:19:40,938 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426884454] [2019-12-07 16:19:40,938 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:19:40,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:19:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:19:40,951 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:19:40,966 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:19:40,966 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:19:40,966 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:19:40,966 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:19:40,966 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 16:19:40,966 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:19:40,966 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:19:40,966 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:19:40,966 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration5_Loop [2019-12-07 16:19:40,966 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:19:40,966 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:19:40,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:19:40,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:19:41,004 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:19:41,004 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:19:41,008 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:19:41,008 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:19:41,014 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:19:41,014 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:19:41,019 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 16:19:41,020 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:19:41,020 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:19:41,020 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:19:41,020 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:19:41,020 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 16:19:41,020 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:19:41,020 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:19:41,021 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:19:41,021 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration5_Loop [2019-12-07 16:19:41,021 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:19:41,021 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:19:41,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:19:41,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:19:41,059 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:19:41,059 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:19:41,063 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 [2019-12-07 16:19:41,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:19:41,064 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:19:41,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:19:41,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:19:41,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:19:41,065 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:19:41,065 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:19:41,067 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 16:19:41,069 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 16:19:41,069 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8abf501e-bf0b-4aab-b026-3f78fcf37e0f/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:19:41,071 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 16:19:41,071 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 16:19:41,071 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 16:19:41,071 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2019-12-07 16:19:41,073 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 16:19:41,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:19:41,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:19:41,089 INFO L264 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:19:41,090 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:19:41,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:19:41,092 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 16:19:41,092 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:19:41,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:19:41,101 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 [2019-12-07 16:19:41,101 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-12-07 16:19:41,105 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. [2019-12-07 16:19:41,105 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 [2019-12-07 16:19:41,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 16:19:41,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2019-12-07 16:19:41,105 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 3 letters. [2019-12-07 16:19:41,105 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:19:41,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 12 letters. Loop has 3 letters. [2019-12-07 16:19:41,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:19:41,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 6 letters. [2019-12-07 16:19:41,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:19:41,106 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 38 transitions. [2019-12-07 16:19:41,106 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 16:19:41,107 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2019-12-07 16:19:41,107 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 16:19:41,107 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 16:19:41,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 16:19:41,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 16:19:41,107 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:19:41,107 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:19:41,107 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:19:41,107 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-12-07 16:19:41,107 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 16:19:41,107 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 16:19:41,107 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 16:19:41,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 04:19:41 BoogieIcfgContainer [2019-12-07 16:19:41,111 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 16:19:41,111 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:19:41,112 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:19:41,112 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:19:41,112 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:19:39" (3/4) ... [2019-12-07 16:19:41,114 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 16:19:41,114 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:19:41,115 INFO L168 Benchmark]: Toolchain (without parser) took 2149.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 939.9 MB in the beginning and 965.9 MB in the end (delta: -26.0 MB). Peak memory consumption was 69.4 MB. Max. memory is 11.5 GB. [2019-12-07 16:19:41,116 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 956.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:19:41,116 INFO L168 Benchmark]: CACSL2BoogieTranslator took 221.86 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -150.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 16:19:41,117 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 16:19:41,117 INFO L168 Benchmark]: Boogie Preprocessor took 22.04 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:19:41,117 INFO L168 Benchmark]: RCFGBuilder took 298.55 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:19:41,118 INFO L168 Benchmark]: BuchiAutomizer took 1573.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 965.9 MB in the end (delta: 85.3 MB). Peak memory consumption was 85.3 MB. Max. memory is 11.5 GB. [2019-12-07 16:19:41,118 INFO L168 Benchmark]: Witness Printer took 2.58 ms. Allocated memory is still 1.1 GB. Free memory is still 965.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:19:41,120 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 956.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 221.86 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -150.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.04 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 298.55 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1573.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 965.9 MB in the end (delta: 85.3 MB). Peak memory consumption was 85.3 MB. Max. memory is 11.5 GB. * Witness Printer took 2.58 ms. Allocated memory is still 1.1 GB. Free memory is still 965.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (1 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * e + 253 and consists of 4 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. 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: 253 SDtfs, 221 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: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...