./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 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/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_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/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 0.1.24-678e011 [2019-11-20 10:54:32,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:54:32,909 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:54:32,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:54:32,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:54:32,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:54:32,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:54:32,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:54:32,937 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:54:32,943 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:54:32,944 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:54:32,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:54:32,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:54:32,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:54:32,948 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:54:32,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:54:32,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:54:32,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:54:32,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:54:32,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:54:32,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:54:32,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:54:32,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:54:32,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:54:32,968 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:54:32,968 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:54:32,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:54:32,970 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:54:32,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:54:32,971 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:54:32,971 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:54:32,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:54:32,973 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:54:32,974 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:54:32,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:54:32,975 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:54:32,975 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:54:32,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:54:32,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:54:32,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:54:32,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:54:32,978 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-20 10:54:33,013 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:54:33,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:54:33,014 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:54:33,014 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:54:33,014 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:54:33,015 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 10:54:33,015 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 10:54:33,015 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 10:54:33,015 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 10:54:33,015 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 10:54:33,016 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 10:54:33,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:54:33,016 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:54:33,016 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 10:54:33,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:54:33,016 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:54:33,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:54:33,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 10:54:33,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 10:54:33,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 10:54:33,017 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:54:33,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:54:33,018 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 10:54:33,018 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:54:33,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 10:54:33,018 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:54:33,018 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:54:33,018 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 10:54:33,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:54:33,019 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 10:54:33,019 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 10:54:33,020 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 10:54:33,020 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_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/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 [2019-11-20 10:54:33,187 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:54:33,203 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:54:33,206 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:54:33,208 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:54:33,208 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:54:33,209 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/bin/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2019-11-20 10:54:33,263 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/bin/uautomizer/data/60cec6604/90cb7954c0ec4bdab91024ebeb208663/FLAG84ea3c967 [2019-11-20 10:54:33,707 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:54:33,708 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2019-11-20 10:54:33,723 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/bin/uautomizer/data/60cec6604/90cb7954c0ec4bdab91024ebeb208663/FLAG84ea3c967 [2019-11-20 10:54:34,230 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/bin/uautomizer/data/60cec6604/90cb7954c0ec4bdab91024ebeb208663 [2019-11-20 10:54:34,233 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:54:34,234 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:54:34,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:54:34,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:54:34,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:54:34,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:54:34" (1/1) ... [2019-11-20 10:54:34,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ee9b735 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:34, skipping insertion in model container [2019-11-20 10:54:34,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:54:34" (1/1) ... [2019-11-20 10:54:34,247 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:54:34,278 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:54:34,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:54:34,521 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:54:34,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:54:34,571 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:54:34,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:34 WrapperNode [2019-11-20 10:54:34,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:54:34,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:54:34,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:54:34,582 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:54:34,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:34" (1/1) ... [2019-11-20 10:54:34,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:34" (1/1) ... [2019-11-20 10:54:34,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:54:34,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:54:34,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:54:34,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:54:34,652 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:34" (1/1) ... [2019-11-20 10:54:34,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:34" (1/1) ... [2019-11-20 10:54:34,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:34" (1/1) ... [2019-11-20 10:54:34,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:34" (1/1) ... [2019-11-20 10:54:34,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:34" (1/1) ... [2019-11-20 10:54:34,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:34" (1/1) ... [2019-11-20 10:54:34,695 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:34" (1/1) ... [2019-11-20 10:54:34,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:54:34,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:54:34,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:54:34,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:54:34,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:54:34,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:54:34,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:54:35,322 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:54:35,322 INFO L285 CfgBuilder]: Removed 34 assume(true) statements. [2019-11-20 10:54:35,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:54:35 BoogieIcfgContainer [2019-11-20 10:54:35,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:54:35,324 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 10:54:35,324 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 10:54:35,327 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 10:54:35,328 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 10:54:35,328 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 10:54:34" (1/3) ... [2019-11-20 10:54:35,329 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45bf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:54:35, skipping insertion in model container [2019-11-20 10:54:35,329 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 10:54:35,330 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:34" (2/3) ... [2019-11-20 10:54:35,330 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45bf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:54:35, skipping insertion in model container [2019-11-20 10:54:35,330 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 10:54:35,331 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:54:35" (3/3) ... [2019-11-20 10:54:35,332 INFO L371 chiAutomizerObserver]: Analyzing ICFG soft_float_4-3a.c.cil.c [2019-11-20 10:54:35,383 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 10:54:35,384 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 10:54:35,384 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 10:54:35,384 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:54:35,384 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:54:35,384 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 10:54:35,384 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:54:35,385 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 10:54:35,400 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states. [2019-11-20 10:54:35,424 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2019-11-20 10:54:35,424 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:54:35,424 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:54:35,431 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-20 10:54:35,431 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 10:54:35,431 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 10:54:35,431 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states. [2019-11-20 10:54:35,437 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2019-11-20 10:54:35,437 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:54:35,437 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:54:35,437 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-20 10:54:35,438 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 10:54:35,445 INFO L794 eck$LassoCheckResult]: Stem: 44#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 40#L19true assume !(0 == base2flt_~m % 4294967296); 28#L25true assume !(base2flt_~m % 4294967296 < 16777216); 21#L47-2true [2019-11-20 10:54:35,445 INFO L796 eck$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 [2019-11-20 10:54:35,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:54:35,452 INFO L82 PathProgramCache]: Analyzing trace with hash 30973, now seen corresponding path program 1 times [2019-11-20 10:54:35,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:54:35,460 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045222954] [2019-11-20 10:54:35,460 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:54:35,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:54:35,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:54:35,606 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045222954] [2019-11-20 10:54:35,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:54:35,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 10:54:35,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716809519] [2019-11-20 10:54:35,612 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 10:54:35,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:54:35,612 INFO L82 PathProgramCache]: Analyzing trace with hash 73619, now seen corresponding path program 1 times [2019-11-20 10:54:35,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:54:35,613 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459024407] [2019-11-20 10:54:35,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:54:35,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:54:35,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:54:35,643 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:54:35,689 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:54:35,690 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:54:35,690 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:54:35,690 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:54:35,691 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 10:54:35,691 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:54:35,691 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:54:35,691 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:54:35,691 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration1_Loop [2019-11-20 10:54:35,692 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:54:35,692 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:54:35,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:54:35,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:54:35,926 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:54:35,926 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:54:35,933 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:54:35,933 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:54:35,942 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 10:54:35,942 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:54:35,950 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 10:54:35,951 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:54:35,951 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:54:35,951 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:54:35,952 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:54:35,952 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 10:54:35,952 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:54:35,952 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:54:35,952 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:54:35,952 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration1_Loop [2019-11-20 10:54:35,952 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:54:35,952 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:54:35,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:54:35,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:54:36,071 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:54:36,076 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:54:36,086 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:54:36,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:54:36,088 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:54:36,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:54:36,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:54:36,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:54:36,092 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:54:36,092 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:54:36,098 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 10:54:36,105 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 10:54:36,105 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_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:54:36,124 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 10:54:36,124 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 10:54:36,125 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 10:54:36,126 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-11-20 10:54:36,131 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:54:36,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:54:36,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:54:36,177 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 10:54:36,178 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:54:36,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:54:36,185 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 10:54:36,185 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:54:36,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:54:36,201 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-20 10:54:36,202 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 78 states. Second operand 3 states. [2019-11-20 10:54:36,296 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. [2019-11-20 10:54:36,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 10:54:36,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 10:54:36,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 235 transitions. [2019-11-20 10:54:36,305 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 235 transitions. Stem has 3 letters. Loop has 3 letters. [2019-11-20 10:54:36,305 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:54:36,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 235 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-20 10:54:36,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:54:36,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 235 transitions. Stem has 3 letters. Loop has 6 letters. [2019-11-20 10:54:36,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:54:36,307 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 232 states and 360 transitions. [2019-11-20 10:54:36,320 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2019-11-20 10:54:36,324 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 232 states to 56 states and 81 transitions. [2019-11-20 10:54:36,325 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2019-11-20 10:54:36,326 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2019-11-20 10:54:36,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 81 transitions. [2019-11-20 10:54:36,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 10:54:36,327 INFO L688 BuchiCegarLoop]: Abstraction has 56 states and 81 transitions. [2019-11-20 10:54:36,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 81 transitions. [2019-11-20 10:54:36,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 45. [2019-11-20 10:54:36,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-11-20 10:54:36,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 69 transitions. [2019-11-20 10:54:36,350 INFO L711 BuchiCegarLoop]: Abstraction has 45 states and 69 transitions. [2019-11-20 10:54:36,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:54:36,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 10:54:36,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:54:36,353 INFO L87 Difference]: Start difference. First operand 45 states and 69 transitions. Second operand 3 states. [2019-11-20 10:54:36,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:54:36,410 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2019-11-20 10:54:36,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:54:36,411 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2019-11-20 10:54:36,412 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-11-20 10:54:36,412 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 30 transitions. [2019-11-20 10:54:36,412 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2019-11-20 10:54:36,413 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2019-11-20 10:54:36,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2019-11-20 10:54:36,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 10:54:36,413 INFO L688 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-20 10:54:36,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2019-11-20 10:54:36,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-20 10:54:36,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-20 10:54:36,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2019-11-20 10:54:36,415 INFO L711 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-20 10:54:36,415 INFO L591 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-20 10:54:36,415 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 10:54:36,415 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. [2019-11-20 10:54:36,416 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-11-20 10:54:36,416 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:54:36,416 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:54:36,416 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 10:54:36,416 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 10:54:36,417 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 [2019-11-20 10:54:36,417 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 [2019-11-20 10:54:36,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:54:36,417 INFO L82 PathProgramCache]: Analyzing trace with hash 921737699, now seen corresponding path program 1 times [2019-11-20 10:54:36,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:54:36,418 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001424401] [2019-11-20 10:54:36,418 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:54:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:54:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:54:36,458 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:54:36,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:54:36,459 INFO L82 PathProgramCache]: Analyzing trace with hash 136178, now seen corresponding path program 1 times [2019-11-20 10:54:36,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:54:36,460 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563979583] [2019-11-20 10:54:36,460 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:54:36,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:54:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:54:36,489 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:54:36,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:54:36,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1761973968, now seen corresponding path program 1 times [2019-11-20 10:54:36,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:54:36,491 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875398886] [2019-11-20 10:54:36,492 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:54:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:54:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:54:36,526 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:54:36,546 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:54:36,547 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:54:36,547 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:54:36,547 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:54:36,547 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 10:54:36,547 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:54:36,547 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:54:36,547 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:54:36,547 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration2_Loop [2019-11-20 10:54:36,547 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:54:36,548 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:54:36,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:54:36,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:54:36,653 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:54:36,653 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:54:36,662 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:54:36,662 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:54:36,671 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:54:36,671 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_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:54:36,684 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:54:36,684 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/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 [2019-11-20 10:54:36,707 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 10:54:36,707 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:54:36,716 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 10:54:36,719 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:54:36,719 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:54:36,719 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:54:36,719 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:54:36,719 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 10:54:36,719 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:54:36,720 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:54:36,720 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:54:36,720 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration2_Loop [2019-11-20 10:54:36,720 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:54:36,720 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:54:36,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:54:36,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:54:36,860 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:54:36,860 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:54:36,875 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:54:36,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:54:36,877 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:54:36,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:54:36,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:54:36,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:54:36,881 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:54:36,881 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:54:36,886 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:54:36,904 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:54:36,906 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:54:36,906 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:54:36,907 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:54:36,907 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:54:36,907 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:54:36,908 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:54:36,909 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:54:36,912 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 10:54:36,915 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 10:54:36,916 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_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/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) [2019-11-20 10:54:36,932 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 10:54:36,932 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 10:54:36,932 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 10:54:36,933 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-11-20 10:54:36,944 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:54:36,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:54:36,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:54:36,989 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 10:54:36,990 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:54:36,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:54:36,995 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 10:54:36,996 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:54:36,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:54:36,997 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-20 10:54:36,997 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 30 transitions. cyclomatic complexity: 11 Second operand 3 states. [2019-11-20 10:54:37,017 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 30 transitions. cyclomatic complexity: 11. Second operand 3 states. Result 40 states and 50 transitions. Complement of second has 5 states. [2019-11-20 10:54:37,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 10:54:37,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 10:54:37,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2019-11-20 10:54:37,021 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-20 10:54:37,022 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:54:37,022 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-20 10:54:37,022 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:54:37,022 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 6 letters. [2019-11-20 10:54:37,022 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:54:37,023 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 50 transitions. [2019-11-20 10:54:37,024 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2019-11-20 10:54:37,024 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 37 states and 46 transitions. [2019-11-20 10:54:37,024 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2019-11-20 10:54:37,025 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2019-11-20 10:54:37,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 46 transitions. [2019-11-20 10:54:37,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 10:54:37,025 INFO L688 BuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2019-11-20 10:54:37,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 46 transitions. [2019-11-20 10:54:37,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 26. [2019-11-20 10:54:37,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-20 10:54:37,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2019-11-20 10:54:37,031 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-20 10:54:37,031 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-20 10:54:37,032 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 10:54:37,032 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2019-11-20 10:54:37,032 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-11-20 10:54:37,033 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:54:37,033 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:54:37,034 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 10:54:37,034 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 10:54:37,034 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 [2019-11-20 10:54:37,035 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 [2019-11-20 10:54:37,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:54:37,035 INFO L82 PathProgramCache]: Analyzing trace with hash 921737673, now seen corresponding path program 1 times [2019-11-20 10:54:37,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:54:37,036 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244330274] [2019-11-20 10:54:37,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:54:37,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:54:37,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:54:37,066 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:54:37,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:54:37,070 INFO L82 PathProgramCache]: Analyzing trace with hash 110419, now seen corresponding path program 1 times [2019-11-20 10:54:37,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:54:37,071 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175614815] [2019-11-20 10:54:37,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:54:37,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:54:37,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:54:37,089 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:54:37,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:54:37,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1761173643, now seen corresponding path program 1 times [2019-11-20 10:54:37,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:54:37,090 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587454072] [2019-11-20 10:54:37,091 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:54:37,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:54:37,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:54:37,111 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:54:37,136 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:54:37,136 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:54:37,136 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:54:37,136 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:54:37,136 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 10:54:37,137 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:54:37,137 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:54:37,137 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:54:37,137 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration3_Loop [2019-11-20 10:54:37,137 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:54:37,137 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:54:37,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:54:37,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:54:37,238 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:54:37,238 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/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 [2019-11-20 10:54:37,255 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:54:37,255 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:54:37,263 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:54:37,263 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_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/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 [2019-11-20 10:54:37,268 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:54:37,268 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/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 [2019-11-20 10:54:37,287 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 10:54:37,290 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:54:37,303 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 10:54:37,305 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:54:37,305 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:54:37,305 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:54:37,305 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:54:37,306 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 10:54:37,306 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:54:37,306 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:54:37,306 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:54:37,306 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration3_Loop [2019-11-20 10:54:37,306 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:54:37,306 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:54:37,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:54:37,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:54:37,397 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:54:37,397 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/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 [2019-11-20 10:54:37,407 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:54:37,409 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:54:37,409 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:54:37,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:54:37,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:54:37,410 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:54:37,412 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:54:37,412 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:54:37,418 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:54:37,430 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:54:37,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:54:37,432 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:54:37,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:54:37,432 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:54:37,433 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:54:37,448 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:54:37,448 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:54:37,455 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 10:54:37,458 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 10:54:37,458 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_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:54:37,471 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 10:54:37,471 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 10:54:37,471 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 10:54:37,471 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:54:37,477 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 10:54:37,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:54:37,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:54:37,509 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 10:54:37,510 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:54:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:54:37,517 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 10:54:37,517 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:54:37,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:54:37,548 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-20 10:54:37,548 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 12 Second operand 4 states. [2019-11-20 10:54:37,564 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 12. Second operand 4 states. Result 44 states and 55 transitions. Complement of second has 5 states. [2019-11-20 10:54:37,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 10:54:37,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 10:54:37,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2019-11-20 10:54:37,566 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-20 10:54:37,566 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:54:37,566 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-20 10:54:37,566 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:54:37,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 6 letters. [2019-11-20 10:54:37,567 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:54:37,567 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 55 transitions. [2019-11-20 10:54:37,568 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-11-20 10:54:37,569 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 41 states and 51 transitions. [2019-11-20 10:54:37,569 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2019-11-20 10:54:37,569 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2019-11-20 10:54:37,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 51 transitions. [2019-11-20 10:54:37,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 10:54:37,569 INFO L688 BuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2019-11-20 10:54:37,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 51 transitions. [2019-11-20 10:54:37,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 29. [2019-11-20 10:54:37,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-20 10:54:37,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2019-11-20 10:54:37,572 INFO L711 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-11-20 10:54:37,572 INFO L591 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-11-20 10:54:37,572 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 10:54:37,572 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 38 transitions. [2019-11-20 10:54:37,572 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-20 10:54:37,572 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:54:37,572 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:54:37,573 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:54:37,573 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 10:54:37,573 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 [2019-11-20 10:54:37,573 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 [2019-11-20 10:54:37,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:54:37,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951196, now seen corresponding path program 1 times [2019-11-20 10:54:37,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:54:37,578 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012681440] [2019-11-20 10:54:37,578 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:54:37,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:54:37,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:54:37,612 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:54:37,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:54:37,613 INFO L82 PathProgramCache]: Analyzing trace with hash 198737, now seen corresponding path program 1 times [2019-11-20 10:54:37,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:54:37,614 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487586771] [2019-11-20 10:54:37,614 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:54:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:54:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:54:37,633 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:54:37,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:54:37,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1766695638, now seen corresponding path program 1 times [2019-11-20 10:54:37,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:54:37,634 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624900017] [2019-11-20 10:54:37,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:54:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:54:37,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:54:37,677 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:54:37,712 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:54:37,712 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:54:37,712 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:54:37,712 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:54:37,712 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 10:54:37,713 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:54:37,713 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:54:37,713 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:54:37,713 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration4_Loop [2019-11-20 10:54:37,713 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:54:37,713 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:54:37,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:54:37,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:54:37,829 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:54:37,829 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/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 [2019-11-20 10:54:37,835 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:54:37,835 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:54:37,851 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 10:54:37,851 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:54:37,867 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 10:54:37,869 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:54:37,869 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:54:37,869 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:54:37,869 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:54:37,870 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 10:54:37,870 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:54:37,870 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:54:37,870 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:54:37,870 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration4_Loop [2019-11-20 10:54:37,870 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:54:37,870 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:54:37,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:54:37,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:54:37,969 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:54:37,969 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:54:37,979 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:54:37,981 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:54:37,981 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:54:37,981 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:54:37,981 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:54:37,981 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:54:37,982 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:54:37,982 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:54:37,990 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 10:54:37,994 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 10:54:37,994 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_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:54:37,998 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 10:54:37,999 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 10:54:37,999 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 10:54:37,999 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:54:38,001 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 10:54:38,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:54:38,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:54:38,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 10:54:38,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:54:38,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:54:38,055 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 10:54:38,055 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:54:38,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:54:38,056 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-20 10:54:38,056 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 13 Second operand 3 states. [2019-11-20 10:54:38,062 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 13. Second operand 3 states. Result 32 states and 42 transitions. Complement of second has 4 states. [2019-11-20 10:54:38,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 10:54:38,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 10:54:38,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2019-11-20 10:54:38,064 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-20 10:54:38,064 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:54:38,064 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 12 letters. Loop has 3 letters. [2019-11-20 10:54:38,064 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:54:38,064 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 6 letters. [2019-11-20 10:54:38,065 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:54:38,065 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2019-11-20 10:54:38,065 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 10:54:38,066 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 34 transitions. [2019-11-20 10:54:38,066 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-11-20 10:54:38,067 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-11-20 10:54:38,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 34 transitions. [2019-11-20 10:54:38,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 10:54:38,067 INFO L688 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-20 10:54:38,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 34 transitions. [2019-11-20 10:54:38,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-11-20 10:54:38,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-20 10:54:38,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2019-11-20 10:54:38,069 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-20 10:54:38,069 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-20 10:54:38,069 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-20 10:54:38,069 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2019-11-20 10:54:38,070 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 10:54:38,070 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:54:38,070 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:54:38,070 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:54:38,070 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 10:54:38,071 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 [2019-11-20 10:54:38,071 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 [2019-11-20 10:54:38,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:54:38,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951170, now seen corresponding path program 1 times [2019-11-20 10:54:38,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:54:38,071 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638507686] [2019-11-20 10:54:38,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:54:38,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:54:38,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:54:38,085 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:54:38,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:54:38,086 INFO L82 PathProgramCache]: Analyzing trace with hash 172978, now seen corresponding path program 1 times [2019-11-20 10:54:38,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:54:38,086 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108740328] [2019-11-20 10:54:38,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:54:38,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:54:38,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:54:38,091 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:54:38,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:54:38,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1765895313, now seen corresponding path program 1 times [2019-11-20 10:54:38,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:54:38,092 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512577926] [2019-11-20 10:54:38,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:54:38,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:54:38,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:54:38,109 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:54:38,130 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:54:38,130 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:54:38,131 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:54:38,131 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:54:38,131 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 10:54:38,131 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:54:38,131 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:54:38,131 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:54:38,131 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration5_Loop [2019-11-20 10:54:38,131 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:54:38,131 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:54:38,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:54:38,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:54:38,206 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:54:38,206 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/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) [2019-11-20 10:54:38,220 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:54:38,220 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:54:38,239 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 10:54:38,240 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:54:38,248 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 10:54:38,250 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:54:38,250 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:54:38,250 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:54:38,250 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:54:38,251 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 10:54:38,251 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:54:38,251 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:54:38,251 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:54:38,251 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration5_Loop [2019-11-20 10:54:38,251 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:54:38,251 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:54:38,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:54:38,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:54:38,336 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:54:38,336 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:54:38,343 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:54:38,345 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:54:38,345 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:54:38,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:54:38,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:54:38,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:54:38,350 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:54:38,351 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:54:38,354 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 10:54:38,358 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 10:54:38,358 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_8361ebe5-dd02-4a69-b3a5-4ae556a0ec88/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) [2019-11-20 10:54:38,362 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 10:54:38,362 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 10:54:38,363 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 10:54:38,363 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:54:38,371 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 10:54:38,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:54:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:54:38,402 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 10:54:38,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:54:38,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:54:38,409 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 10:54:38,410 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:54:38,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:54:38,427 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-20 10:54:38,427 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-11-20 10:54:38,434 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 30 states and 38 transitions. Complement of second has 4 states. [2019-11-20 10:54:38,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 10:54:38,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 10:54:38,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2019-11-20 10:54:38,436 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-20 10:54:38,437 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:54:38,437 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 12 letters. Loop has 3 letters. [2019-11-20 10:54:38,437 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:54:38,437 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 6 letters. [2019-11-20 10:54:38,437 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:54:38,438 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 38 transitions. [2019-11-20 10:54:38,438 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 10:54:38,438 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2019-11-20 10:54:38,438 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 10:54:38,439 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 10:54:38,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 10:54:38,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 10:54:38,439 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 10:54:38,439 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 10:54:38,439 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 10:54:38,439 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-20 10:54:38,439 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 10:54:38,439 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 10:54:38,439 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 10:54:38,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 10:54:38 BoogieIcfgContainer [2019-11-20 10:54:38,445 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 10:54:38,446 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:54:38,446 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:54:38,449 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:54:38,450 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:54:35" (3/4) ... [2019-11-20 10:54:38,454 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 10:54:38,454 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:54:38,456 INFO L168 Benchmark]: Toolchain (without parser) took 4221.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 951.4 MB in the beginning and 986.2 MB in the end (delta: -34.8 MB). Peak memory consumption was 92.1 MB. Max. memory is 11.5 GB. [2019-11-20 10:54:38,456 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:54:38,457 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-20 10:54:38,458 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 10:54:38,462 INFO L168 Benchmark]: Boogie Preprocessor took 60.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-20 10:54:38,463 INFO L168 Benchmark]: RCFGBuilder took 624.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. [2019-11-20 10:54:38,463 INFO L168 Benchmark]: BuchiAutomizer took 3121.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 986.2 MB in the end (delta: 95.6 MB). Peak memory consumption was 95.6 MB. Max. memory is 11.5 GB. [2019-11-20 10:54:38,464 INFO L168 Benchmark]: Witness Printer took 8.30 ms. Allocated memory is still 1.2 GB. Free memory is still 986.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:54:38,471 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 346.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 60.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 624.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3121.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 986.2 MB in the end (delta: 95.6 MB). Peak memory consumption was 95.6 MB. Max. memory is 11.5 GB. * Witness Printer took 8.30 ms. Allocated memory is still 1.2 GB. Free memory is still 986.2 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 3.0s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 2.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. 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: 48ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...