./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa --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 2abfa4882ab8ec6bd7a33a5fbeaa8a88ba40a897019218fc162e52833c89454b --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 19:38:34,017 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 19:38:34,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 19:38:34,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 19:38:34,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 19:38:34,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 19:38:34,044 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 19:38:34,046 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 19:38:34,047 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 19:38:34,048 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 19:38:34,049 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 19:38:34,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 19:38:34,050 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 19:38:34,051 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 19:38:34,052 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 19:38:34,053 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 19:38:34,054 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 19:38:34,055 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 19:38:34,056 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 19:38:34,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 19:38:34,059 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 19:38:34,061 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 19:38:34,062 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 19:38:34,062 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 19:38:34,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 19:38:34,065 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 19:38:34,066 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 19:38:34,067 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 19:38:34,067 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 19:38:34,068 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 19:38:34,068 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 19:38:34,069 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 19:38:34,069 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 19:38:34,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 19:38:34,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 19:38:34,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 19:38:34,071 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 19:38:34,071 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 19:38:34,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 19:38:34,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 19:38:34,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 19:38:34,073 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-06 19:38:34,090 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 19:38:34,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 19:38:34,091 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 19:38:34,091 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 19:38:34,092 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 19:38:34,092 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 19:38:34,092 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 19:38:34,092 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 19:38:34,092 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 19:38:34,092 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 19:38:34,093 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 19:38:34,093 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 19:38:34,093 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 19:38:34,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 19:38:34,093 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 19:38:34,093 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 19:38:34,093 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 19:38:34,093 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 19:38:34,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 19:38:34,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 19:38:34,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 19:38:34,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 19:38:34,094 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 19:38:34,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 19:38:34,101 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 19:38:34,101 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 19:38:34,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 19:38:34,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 19:38:34,102 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 19:38:34,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 19:38:34,102 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 19:38:34,102 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 19:38:34,103 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 19:38:34,103 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2abfa4882ab8ec6bd7a33a5fbeaa8a88ba40a897019218fc162e52833c89454b [2021-12-06 19:38:34,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 19:38:34,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 19:38:34,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 19:38:34,308 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 19:38:34,309 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 19:38:34,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c [2021-12-06 19:38:34,361 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/data/7de594515/23bca45558224d469f6997e51432f734/FLAG8a6db8551 [2021-12-06 19:38:34,750 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 19:38:34,751 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c [2021-12-06 19:38:34,758 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/data/7de594515/23bca45558224d469f6997e51432f734/FLAG8a6db8551 [2021-12-06 19:38:34,767 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/data/7de594515/23bca45558224d469f6997e51432f734 [2021-12-06 19:38:34,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 19:38:34,771 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 19:38:34,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 19:38:34,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 19:38:34,775 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 19:38:34,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:38:34" (1/1) ... [2021-12-06 19:38:34,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@413e1bc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:38:34, skipping insertion in model container [2021-12-06 19:38:34,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:38:34" (1/1) ... [2021-12-06 19:38:34,782 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 19:38:34,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:38:34,920 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c[755,768] [2021-12-06 19:38:34,950 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:38:34,956 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 19:38:34,965 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c[755,768] [2021-12-06 19:38:34,983 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:38:34,992 INFO L208 MainTranslator]: Completed translation [2021-12-06 19:38:34,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:38:34 WrapperNode [2021-12-06 19:38:34,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 19:38:34,994 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 19:38:34,994 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 19:38:34,994 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 19:38:34,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:38:34" (1/1) ... [2021-12-06 19:38:35,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:38:34" (1/1) ... [2021-12-06 19:38:35,026 INFO L137 Inliner]: procedures = 17, calls = 17, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 291 [2021-12-06 19:38:35,026 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 19:38:35,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 19:38:35,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 19:38:35,027 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 19:38:35,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:38:34" (1/1) ... [2021-12-06 19:38:35,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:38:34" (1/1) ... [2021-12-06 19:38:35,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:38:34" (1/1) ... [2021-12-06 19:38:35,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:38:34" (1/1) ... [2021-12-06 19:38:35,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:38:34" (1/1) ... [2021-12-06 19:38:35,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:38:34" (1/1) ... [2021-12-06 19:38:35,047 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:38:34" (1/1) ... [2021-12-06 19:38:35,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 19:38:35,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 19:38:35,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 19:38:35,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 19:38:35,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:38:34" (1/1) ... [2021-12-06 19:38:35,059 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:35,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:38:35,081 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:38:35,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 19:38:35,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 19:38:35,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 19:38:35,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 19:38:35,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 19:38:35,167 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 19:38:35,169 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 19:38:35,358 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 19:38:35,366 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 19:38:35,366 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-12-06 19:38:35,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:38:35 BoogieIcfgContainer [2021-12-06 19:38:35,368 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 19:38:35,369 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 19:38:35,369 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 19:38:35,372 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 19:38:35,373 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 19:38:35,373 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 07:38:34" (1/3) ... [2021-12-06 19:38:35,374 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@246a2027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 07:38:35, skipping insertion in model container [2021-12-06 19:38:35,374 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 19:38:35,374 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:38:34" (2/3) ... [2021-12-06 19:38:35,375 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@246a2027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 07:38:35, skipping insertion in model container [2021-12-06 19:38:35,375 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 19:38:35,375 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:38:35" (3/3) ... [2021-12-06 19:38:35,376 INFO L388 chiAutomizerObserver]: Analyzing ICFG soft_float_4-2a.c.cil.c [2021-12-06 19:38:35,420 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 19:38:35,420 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 19:38:35,420 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 19:38:35,420 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 19:38:35,421 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 19:38:35,421 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 19:38:35,421 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 19:38:35,421 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 19:38:35,436 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 77 states, 76 states have (on average 1.644736842105263) internal successors, (125), 76 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:35,456 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2021-12-06 19:38:35,456 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:38:35,456 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:38:35,461 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-06 19:38:35,461 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 19:38:35,462 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 19:38:35,462 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 77 states, 76 states have (on average 1.644736842105263) internal successors, (125), 76 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:35,469 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2021-12-06 19:38:35,469 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:38:35,469 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:38:35,470 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-06 19:38:35,470 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 19:38:35,475 INFO L791 eck$LassoCheckResult]: Stem: 58#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 44#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~ret11#1, main_#t~ret12#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_add1~0#1, main_~r_add2~0#1, main_~zero~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~__retres14~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~ea~2#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~eb~2#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~r_add1~0#1;havoc main_~r_add2~0#1;havoc main_~zero~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~__retres14~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 6#L30true assume !(0 == base2flt_~m#1 % 4294967296); 67#L36true assume !(base2flt_~m#1 % 4294967296 < 16777216); 18#L58-2true [2021-12-06 19:38:35,475 INFO L793 eck$LassoCheckResult]: Loop: 18#L58-2true assume !false; 42#L59true assume base2flt_~m#1 % 4294967296 >= 33554432; 74#L60true assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 18#L58-2true [2021-12-06 19:38:35,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:35,481 INFO L85 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2021-12-06 19:38:35,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:38:35,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338241236] [2021-12-06 19:38:35,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:35,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:38:35,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:35,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:38:35,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:38:35,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338241236] [2021-12-06 19:38:35,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338241236] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:38:35,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:38:35,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:38:35,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64976263] [2021-12-06 19:38:35,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:38:35,640 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 19:38:35,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:35,641 INFO L85 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2021-12-06 19:38:35,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:38:35,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326645876] [2021-12-06 19:38:35,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:35,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:38:35,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:38:35,654 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:38:35,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:38:35,672 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:38:35,711 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:38:35,712 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:38:35,712 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:38:35,712 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:38:35,712 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 19:38:35,712 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:35,712 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:38:35,712 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:38:35,713 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration1_Loop [2021-12-06 19:38:35,713 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:38:35,713 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:38:35,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:38:35,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:38:35,803 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:38:35,803 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 19:38:35,805 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:35,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:38:35,806 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:38:35,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-06 19:38:35,808 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:38:35,808 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:38:35,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-06 19:38:35,838 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:35,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:38:35,839 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:38:35,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-06 19:38:35,840 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 19:38:35,840 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:38:35,878 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 19:38:35,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-06 19:38:35,881 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:38:35,881 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:38:35,881 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:38:35,881 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:38:35,881 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 19:38:35,881 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:35,881 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:38:35,881 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:38:35,881 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration1_Loop [2021-12-06 19:38:35,881 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:38:35,881 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:38:35,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:38:35,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:38:35,928 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:38:35,931 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 19:38:35,932 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:35,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:38:35,933 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:38:35,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-06 19:38:35,934 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:38:35,942 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:38:35,942 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:38:35,942 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:38:35,942 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:38:35,943 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:38:35,944 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:38:35,944 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:38:35,947 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 19:38:35,952 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-06 19:38:35,952 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-06 19:38:35,953 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:35,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:38:35,954 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:38:35,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-06 19:38:35,955 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 19:38:35,955 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 19:38:35,956 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 19:38:35,956 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2021-12-06 19:38:35,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-12-06 19:38:35,976 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 19:38:35,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:36,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:38:36,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:38:36,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:36,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:38:36,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:38:36,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:38:36,049 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 [2021-12-06 19:38:36,051 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 77 states, 76 states have (on average 1.644736842105263) internal successors, (125), 76 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:36,101 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 77 states, 76 states have (on average 1.644736842105263) internal successors, (125), 76 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 227 states and 355 transitions. Complement of second has 6 states. [2021-12-06 19:38:36,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 19:38:36,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:36,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 232 transitions. [2021-12-06 19:38:36,108 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 232 transitions. Stem has 4 letters. Loop has 3 letters. [2021-12-06 19:38:36,109 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:38:36,109 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 232 transitions. Stem has 7 letters. Loop has 3 letters. [2021-12-06 19:38:36,109 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:38:36,109 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 232 transitions. Stem has 4 letters. Loop has 6 letters. [2021-12-06 19:38:36,109 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:38:36,110 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 227 states and 355 transitions. [2021-12-06 19:38:36,118 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2021-12-06 19:38:36,122 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 227 states to 57 states and 82 transitions. [2021-12-06 19:38:36,122 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2021-12-06 19:38:36,123 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2021-12-06 19:38:36,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 82 transitions. [2021-12-06 19:38:36,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 19:38:36,123 INFO L681 BuchiCegarLoop]: Abstraction has 57 states and 82 transitions. [2021-12-06 19:38:36,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 82 transitions. [2021-12-06 19:38:36,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 46. [2021-12-06 19:38:36,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 46 states have (on average 1.5217391304347827) internal successors, (70), 45 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:36,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 70 transitions. [2021-12-06 19:38:36,143 INFO L704 BuchiCegarLoop]: Abstraction has 46 states and 70 transitions. [2021-12-06 19:38:36,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:38:36,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:38:36,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:38:36,146 INFO L87 Difference]: Start difference. First operand 46 states and 70 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:36,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:38:36,167 INFO L93 Difference]: Finished difference Result 24 states and 31 transitions. [2021-12-06 19:38:36,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:38:36,168 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2021-12-06 19:38:36,169 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-12-06 19:38:36,169 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 31 transitions. [2021-12-06 19:38:36,169 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2021-12-06 19:38:36,169 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-12-06 19:38:36,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2021-12-06 19:38:36,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 19:38:36,169 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-12-06 19:38:36,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2021-12-06 19:38:36,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-12-06 19:38:36,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:36,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2021-12-06 19:38:36,171 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-12-06 19:38:36,171 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-12-06 19:38:36,171 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-06 19:38:36,171 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 31 transitions. [2021-12-06 19:38:36,172 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-12-06 19:38:36,172 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:38:36,172 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:38:36,172 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:38:36,172 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 19:38:36,172 INFO L791 eck$LassoCheckResult]: Stem: 425#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 426#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~ret11#1, main_#t~ret12#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_add1~0#1, main_~r_add2~0#1, main_~zero~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~__retres14~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~ea~2#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~eb~2#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~r_add1~0#1;havoc main_~r_add2~0#1;havoc main_~zero~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~__retres14~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 427#L30 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 428#L80 base2flt_#res#1 := base2flt_~__retres4~0#1; 437#L81 main_#t~ret8#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 438#L30-1 assume !(0 == base2flt_~m#1 % 4294967296); 440#L36-1 assume !(base2flt_~m#1 % 4294967296 < 16777216); 430#L58-5 [2021-12-06 19:38:36,173 INFO L793 eck$LassoCheckResult]: Loop: 430#L58-5 assume !false; 431#L59-1 assume base2flt_~m#1 % 4294967296 >= 33554432; 432#L60-1 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 430#L58-5 [2021-12-06 19:38:36,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:36,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1806627809, now seen corresponding path program 1 times [2021-12-06 19:38:36,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:38:36,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615634468] [2021-12-06 19:38:36,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:36,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:38:36,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:38:36,182 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:38:36,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:38:36,192 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:38:36,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:36,193 INFO L85 PathProgramCache]: Analyzing trace with hash 137171, now seen corresponding path program 1 times [2021-12-06 19:38:36,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:38:36,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158129230] [2021-12-06 19:38:36,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:36,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:38:36,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:38:36,199 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:38:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:38:36,204 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:38:36,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:36,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1013979123, now seen corresponding path program 1 times [2021-12-06 19:38:36,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:38:36,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307743413] [2021-12-06 19:38:36,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:36,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:38:36,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:38:36,216 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:38:36,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:38:36,229 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:38:36,248 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:38:36,248 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:38:36,248 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:38:36,248 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:38:36,248 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 19:38:36,249 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:36,249 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:38:36,249 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:38:36,249 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration2_Loop [2021-12-06 19:38:36,249 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:38:36,249 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:38:36,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:38:36,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:38:36,294 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:38:36,294 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 19:38:36,294 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:36,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:38:36,295 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:38:36,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-06 19:38:36,297 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:38:36,297 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:38:36,332 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:38:36,332 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=-1} Honda state: {ULTIMATE.start_base2flt_~m#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 19:38:36,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-06 19:38:36,334 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:36,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:38:36,335 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:38:36,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-06 19:38:36,336 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:38:36,336 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:38:36,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-06 19:38:36,375 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:36,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:38:36,376 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:38:36,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-06 19:38:36,377 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 19:38:36,377 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:38:36,409 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 19:38:36,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-06 19:38:36,411 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:38:36,411 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:38:36,411 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:38:36,411 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:38:36,411 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 19:38:36,411 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:36,411 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:38:36,411 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:38:36,411 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration2_Loop [2021-12-06 19:38:36,412 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:38:36,412 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:38:36,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:38:36,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:38:36,462 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:38:36,462 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 19:38:36,462 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:36,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:38:36,463 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:38:36,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-06 19:38:36,464 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:38:36,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:38:36,472 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:38:36,472 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:38:36,472 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:38:36,472 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:38:36,473 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:38:36,473 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:38:36,475 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:38:36,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-06 19:38:36,497 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:36,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:38:36,497 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:38:36,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-06 19:38:36,499 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:38:36,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:38:36,506 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:38:36,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:38:36,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:38:36,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:38:36,507 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:38:36,507 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:38:36,508 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 19:38:36,511 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-06 19:38:36,511 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-06 19:38:36,511 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:36,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:38:36,545 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:38:36,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-06 19:38:36,547 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 19:38:36,547 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 19:38:36,547 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 19:38:36,547 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2021-12-06 19:38:36,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-06 19:38:36,566 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 19:38:36,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:36,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:36,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:38:36,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:38:36,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:36,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:38:36,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:38:36,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:38:36,604 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 [2021-12-06 19:38:36,605 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 31 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:36,612 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 31 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 41 states and 51 transitions. Complement of second has 5 states. [2021-12-06 19:38:36,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 19:38:36,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:36,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2021-12-06 19:38:36,614 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 7 letters. Loop has 3 letters. [2021-12-06 19:38:36,614 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:38:36,615 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 10 letters. Loop has 3 letters. [2021-12-06 19:38:36,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:38:36,615 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 7 letters. Loop has 6 letters. [2021-12-06 19:38:36,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:38:36,615 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 51 transitions. [2021-12-06 19:38:36,616 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2021-12-06 19:38:36,617 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 38 states and 47 transitions. [2021-12-06 19:38:36,617 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2021-12-06 19:38:36,617 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2021-12-06 19:38:36,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 47 transitions. [2021-12-06 19:38:36,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 19:38:36,618 INFO L681 BuchiCegarLoop]: Abstraction has 38 states and 47 transitions. [2021-12-06 19:38:36,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 47 transitions. [2021-12-06 19:38:36,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 27. [2021-12-06 19:38:36,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:36,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2021-12-06 19:38:36,620 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-12-06 19:38:36,620 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-12-06 19:38:36,620 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-06 19:38:36,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2021-12-06 19:38:36,625 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-12-06 19:38:36,626 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:38:36,626 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:38:36,626 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:38:36,626 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 19:38:36,627 INFO L791 eck$LassoCheckResult]: Stem: 540#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 541#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~ret11#1, main_#t~ret12#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_add1~0#1, main_~r_add2~0#1, main_~zero~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~__retres14~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~ea~2#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~eb~2#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~r_add1~0#1;havoc main_~r_add2~0#1;havoc main_~zero~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~__retres14~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 542#L30 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 543#L80 base2flt_#res#1 := base2flt_~__retres4~0#1; 555#L81 main_#t~ret8#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 556#L30-1 assume !(0 == base2flt_~m#1 % 4294967296); 558#L36-1 assume base2flt_~m#1 % 4294967296 < 16777216; 538#L48-3 [2021-12-06 19:38:36,627 INFO L793 eck$LassoCheckResult]: Loop: 538#L48-3 assume !false; 557#L39-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 537#L48-2 assume base2flt_~m#1 % 4294967296 < 16777216; 538#L48-3 [2021-12-06 19:38:36,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:36,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1806627783, now seen corresponding path program 1 times [2021-12-06 19:38:36,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:38:36,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102352940] [2021-12-06 19:38:36,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:36,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:38:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:38:36,638 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:38:36,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:38:36,650 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:38:36,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:36,651 INFO L85 PathProgramCache]: Analyzing trace with hash 111412, now seen corresponding path program 1 times [2021-12-06 19:38:36,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:38:36,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371010437] [2021-12-06 19:38:36,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:36,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:38:36,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-12-06 19:38:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:38:36,658 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:38:36,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:38:36,662 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:38:36,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:36,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1013178798, now seen corresponding path program 1 times [2021-12-06 19:38:36,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:38:36,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820152542] [2021-12-06 19:38:36,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:36,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:38:36,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:38:36,676 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:38:36,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-06 19:38:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:38:36,692 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:38:36,714 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:38:36,714 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:38:36,714 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:38:36,714 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:38:36,714 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 19:38:36,714 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:36,714 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:38:36,714 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:38:36,714 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration3_Loop [2021-12-06 19:38:36,714 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:38:36,715 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:38:36,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:38:36,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:38:36,755 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:38:36,755 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 19:38:36,756 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:36,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:38:36,757 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:38:36,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-06 19:38:36,758 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:38:36,758 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:38:36,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-06 19:38:36,784 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:36,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:38:36,785 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:38:36,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-06 19:38:36,787 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 19:38:36,787 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:38:36,818 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 19:38:36,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-12-06 19:38:36,820 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:38:36,820 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:38:36,820 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:38:36,820 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:38:36,820 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 19:38:36,820 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:36,820 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:38:36,820 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:38:36,820 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration3_Loop [2021-12-06 19:38:36,821 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:38:36,821 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:38:36,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:38:36,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:38:36,850 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:38:36,850 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 19:38:36,851 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:36,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:38:36,851 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:38:36,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-06 19:38:36,855 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:38:36,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:38:36,862 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:38:36,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:38:36,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:38:36,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:38:36,863 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:38:36,863 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:38:36,865 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 19:38:36,866 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-06 19:38:36,866 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-06 19:38:36,867 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:36,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:38:36,867 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:38:36,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-06 19:38:36,868 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 19:38:36,868 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 19:38:36,869 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 19:38:36,869 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2021-12-06 19:38:36,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-12-06 19:38:36,888 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 19:38:36,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:36,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:38:36,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:38:36,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:36,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:38:36,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:38:36,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:38:36,950 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 [2021-12-06 19:38:36,951 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:36,958 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 56 transitions. Complement of second has 5 states. [2021-12-06 19:38:36,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 19:38:36,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:36,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 34 transitions. [2021-12-06 19:38:36,959 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 34 transitions. Stem has 7 letters. Loop has 3 letters. [2021-12-06 19:38:36,959 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:38:36,959 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 34 transitions. Stem has 10 letters. Loop has 3 letters. [2021-12-06 19:38:36,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:38:36,960 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 34 transitions. Stem has 7 letters. Loop has 6 letters. [2021-12-06 19:38:36,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:38:36,960 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 56 transitions. [2021-12-06 19:38:36,961 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-12-06 19:38:36,961 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 42 states and 52 transitions. [2021-12-06 19:38:36,961 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2021-12-06 19:38:36,961 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-12-06 19:38:36,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 52 transitions. [2021-12-06 19:38:36,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 19:38:36,962 INFO L681 BuchiCegarLoop]: Abstraction has 42 states and 52 transitions. [2021-12-06 19:38:36,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 52 transitions. [2021-12-06 19:38:36,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 30. [2021-12-06 19:38:36,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.3) internal successors, (39), 29 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:36,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2021-12-06 19:38:36,964 INFO L704 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2021-12-06 19:38:36,964 INFO L587 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2021-12-06 19:38:36,964 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-06 19:38:36,964 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 39 transitions. [2021-12-06 19:38:36,964 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-12-06 19:38:36,964 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:38:36,964 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:38:36,965 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:38:36,965 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 19:38:36,965 INFO L791 eck$LassoCheckResult]: Stem: 664#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 665#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~ret11#1, main_#t~ret12#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_add1~0#1, main_~r_add2~0#1, main_~zero~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~__retres14~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~ea~2#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~eb~2#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~r_add1~0#1;havoc main_~r_add2~0#1;havoc main_~zero~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~__retres14~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 666#L30 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 667#L80 base2flt_#res#1 := base2flt_~__retres4~0#1; 681#L81 main_#t~ret8#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 682#L30-1 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 676#L80-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 668#L81-1 main_#t~ret9#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~mb~2#1, main_~eb~2#1;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 656#L30-2 assume !(0 == base2flt_~m#1 % 4294967296); 657#L36-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 680#L58-8 [2021-12-06 19:38:36,965 INFO L793 eck$LassoCheckResult]: Loop: 680#L58-8 assume !false; 673#L59-2 assume base2flt_~m#1 % 4294967296 >= 33554432; 674#L60-2 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 680#L58-8 [2021-12-06 19:38:36,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:36,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1012956351, now seen corresponding path program 1 times [2021-12-06 19:38:36,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:38:36,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853070618] [2021-12-06 19:38:36,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:36,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:38:36,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:38:36,973 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:38:36,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:38:36,983 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:38:36,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:36,983 INFO L85 PathProgramCache]: Analyzing trace with hash 199730, now seen corresponding path program 1 times [2021-12-06 19:38:36,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:38:36,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599072123] [2021-12-06 19:38:36,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:36,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:38:36,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:38:36,988 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:38:36,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:38:36,991 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:38:36,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:36,992 INFO L85 PathProgramCache]: Analyzing trace with hash 542600884, now seen corresponding path program 1 times [2021-12-06 19:38:36,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:38:36,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274611711] [2021-12-06 19:38:36,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:36,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:38:37,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:38:37,001 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:38:37,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:38:37,011 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:38:37,030 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:38:37,030 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:38:37,030 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:38:37,030 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:38:37,030 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 19:38:37,030 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:37,031 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:38:37,031 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:38:37,031 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration4_Loop [2021-12-06 19:38:37,031 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:38:37,031 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:38:37,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:38:37,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:38:37,075 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:38:37,075 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 19:38:37,075 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:37,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:38:37,076 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:38:37,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-06 19:38:37,079 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:38:37,079 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:38:37,114 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:38:37,114 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=-1} Honda state: {ULTIMATE.start_base2flt_~m#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 19:38:37,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-06 19:38:37,116 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:37,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:38:37,117 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:38:37,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-06 19:38:37,118 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:38:37,119 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:38:37,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-06 19:38:37,146 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:37,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:38:37,147 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:38:37,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-06 19:38:37,148 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 19:38:37,148 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:38:37,180 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 19:38:37,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-06 19:38:37,182 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:38:37,182 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:38:37,182 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:38:37,182 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:38:37,182 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 19:38:37,182 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:37,182 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:38:37,182 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:38:37,182 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration4_Loop [2021-12-06 19:38:37,182 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:38:37,182 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:38:37,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:38:37,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:38:37,225 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:38:37,226 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 19:38:37,226 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:37,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:38:37,227 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:38:37,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-06 19:38:37,228 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:38:37,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:38:37,235 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:38:37,235 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:38:37,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:38:37,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:38:37,236 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:38:37,236 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:38:37,239 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:38:37,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-12-06 19:38:37,258 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:37,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:38:37,259 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:38:37,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-06 19:38:37,261 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:38:37,268 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:38:37,268 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:38:37,268 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:38:37,268 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:38:37,268 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:38:37,269 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:38:37,269 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:38:37,271 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 19:38:37,274 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-06 19:38:37,274 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-06 19:38:37,274 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:37,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:38:37,275 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:38:37,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-06 19:38:37,276 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 19:38:37,276 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 19:38:37,276 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 19:38:37,276 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2021-12-06 19:38:37,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-12-06 19:38:37,294 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 19:38:37,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:37,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:37,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:38:37,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:38:37,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:37,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:38:37,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:38:37,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:38:37,335 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 [2021-12-06 19:38:37,335 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:37,339 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 33 states and 43 transitions. Complement of second has 4 states. [2021-12-06 19:38:37,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 19:38:37,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:37,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 31 transitions. [2021-12-06 19:38:37,341 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 10 letters. Loop has 3 letters. [2021-12-06 19:38:37,341 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:38:37,341 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 13 letters. Loop has 3 letters. [2021-12-06 19:38:37,341 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:38:37,341 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 10 letters. Loop has 6 letters. [2021-12-06 19:38:37,341 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:38:37,341 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 43 transitions. [2021-12-06 19:38:37,342 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 19:38:37,342 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 27 states and 35 transitions. [2021-12-06 19:38:37,342 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2021-12-06 19:38:37,343 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2021-12-06 19:38:37,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2021-12-06 19:38:37,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 19:38:37,343 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-12-06 19:38:37,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2021-12-06 19:38:37,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-12-06 19:38:37,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:37,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2021-12-06 19:38:37,344 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-12-06 19:38:37,344 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-12-06 19:38:37,344 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-06 19:38:37,344 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2021-12-06 19:38:37,345 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 19:38:37,345 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:38:37,345 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:38:37,345 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:38:37,345 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 19:38:37,345 INFO L791 eck$LassoCheckResult]: Stem: 785#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 786#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~ret11#1, main_#t~ret12#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_add1~0#1, main_~r_add2~0#1, main_~zero~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~__retres14~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~ea~2#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~eb~2#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~r_add1~0#1;havoc main_~r_add2~0#1;havoc main_~zero~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~__retres14~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 787#L30 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 788#L80 base2flt_#res#1 := base2flt_~__retres4~0#1; 797#L81 main_#t~ret8#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 798#L30-1 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 795#L80-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 789#L81-1 main_#t~ret9#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~mb~2#1, main_~eb~2#1;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 779#L30-2 assume !(0 == base2flt_~m#1 % 4294967296); 780#L36-2 assume base2flt_~m#1 % 4294967296 < 16777216; 778#L48-5 [2021-12-06 19:38:37,345 INFO L793 eck$LassoCheckResult]: Loop: 778#L48-5 assume !false; 802#L39-2 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 777#L48-4 assume base2flt_~m#1 % 4294967296 < 16777216; 778#L48-5 [2021-12-06 19:38:37,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:37,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1012956325, now seen corresponding path program 1 times [2021-12-06 19:38:37,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:38:37,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982206833] [2021-12-06 19:38:37,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:37,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:38:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:38:37,355 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:38:37,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:38:37,365 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:38:37,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:37,366 INFO L85 PathProgramCache]: Analyzing trace with hash 173971, now seen corresponding path program 1 times [2021-12-06 19:38:37,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:38:37,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534201170] [2021-12-06 19:38:37,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:37,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:38:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:38:37,370 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:38:37,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:38:37,373 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:38:37,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:37,373 INFO L85 PathProgramCache]: Analyzing trace with hash 541800559, now seen corresponding path program 1 times [2021-12-06 19:38:37,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:38:37,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714568117] [2021-12-06 19:38:37,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:37,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:38:37,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:38:37,384 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:38:37,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:38:37,397 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:38:37,417 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:38:37,417 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:38:37,417 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:38:37,417 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:38:37,417 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 19:38:37,417 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:37,417 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:38:37,417 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:38:37,417 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration5_Loop [2021-12-06 19:38:37,417 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:38:37,417 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:38:37,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:38:37,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:38:37,472 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:38:37,472 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 19:38:37,472 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:37,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:38:37,473 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:38:37,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-12-06 19:38:37,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-06 19:38:37,486 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:38:37,487 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:38:37,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-06 19:38:37,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-06 19:38:37,513 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:37,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:38:37,514 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:38:37,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-06 19:38:37,515 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 19:38:37,516 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:38:37,546 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 19:38:37,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-12-06 19:38:37,548 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:38:37,548 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:38:37,548 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:38:37,548 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:38:37,549 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 19:38:37,549 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:37,549 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:38:37,549 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:38:37,549 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration5_Loop [2021-12-06 19:38:37,549 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:38:37,549 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:38:37,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:38:37,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:38:37,581 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:38:37,582 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 19:38:37,582 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:37,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:38:37,582 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:38:37,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-06 19:38:37,589 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:38:37,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:38:37,596 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:38:37,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:38:37,596 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:38:37,596 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:38:37,596 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:38:37,596 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:38:37,598 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 19:38:37,600 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-06 19:38:37,600 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-06 19:38:37,600 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:38:37,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:38:37,601 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:38:37,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-06 19:38:37,605 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 19:38:37,605 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 19:38:37,605 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 19:38:37,605 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2021-12-06 19:38:37,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-12-06 19:38:37,624 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 19:38:37,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:37,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:37,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:38:37,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:38:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:37,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:38:37,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:38:37,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:38:37,669 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 [2021-12-06 19:38:37,670 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:37,674 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 39 transitions. Complement of second has 4 states. [2021-12-06 19:38:37,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 19:38:37,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:37,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 28 transitions. [2021-12-06 19:38:37,675 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 10 letters. Loop has 3 letters. [2021-12-06 19:38:37,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:38:37,675 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 13 letters. Loop has 3 letters. [2021-12-06 19:38:37,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:38:37,675 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 10 letters. Loop has 6 letters. [2021-12-06 19:38:37,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:38:37,675 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2021-12-06 19:38:37,676 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 19:38:37,676 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2021-12-06 19:38:37,676 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-06 19:38:37,676 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-06 19:38:37,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-06 19:38:37,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 19:38:37,676 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 19:38:37,676 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 19:38:37,676 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 19:38:37,676 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-06 19:38:37,676 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-06 19:38:37,676 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 19:38:37,676 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-06 19:38:37,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 07:38:37 BoogieIcfgContainer [2021-12-06 19:38:37,681 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 19:38:37,681 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 19:38:37,681 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 19:38:37,681 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 19:38:37,682 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:38:35" (3/4) ... [2021-12-06 19:38:37,683 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 19:38:37,683 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 19:38:37,684 INFO L158 Benchmark]: Toolchain (without parser) took 2913.20ms. Allocated memory was 109.1MB in the beginning and 136.3MB in the end (delta: 27.3MB). Free memory was 65.4MB in the beginning and 90.3MB in the end (delta: -25.0MB). Peak memory consumption was 1.0MB. Max. memory is 16.1GB. [2021-12-06 19:38:37,685 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 109.1MB. Free memory was 82.0MB in the beginning and 81.9MB in the end (delta: 90.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:38:37,685 INFO L158 Benchmark]: CACSL2BoogieTranslator took 220.73ms. Allocated memory is still 109.1MB. Free memory was 65.2MB in the beginning and 81.0MB in the end (delta: -15.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-06 19:38:37,685 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.76ms. Allocated memory is still 109.1MB. Free memory was 80.6MB in the beginning and 78.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 19:38:37,685 INFO L158 Benchmark]: Boogie Preprocessor took 23.49ms. Allocated memory is still 109.1MB. Free memory was 78.5MB in the beginning and 76.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:38:37,686 INFO L158 Benchmark]: RCFGBuilder took 317.36ms. Allocated memory is still 109.1MB. Free memory was 76.9MB in the beginning and 60.8MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-06 19:38:37,686 INFO L158 Benchmark]: BuchiAutomizer took 2311.97ms. Allocated memory was 109.1MB in the beginning and 136.3MB in the end (delta: 27.3MB). Free memory was 60.8MB in the beginning and 90.3MB in the end (delta: -29.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:38:37,686 INFO L158 Benchmark]: Witness Printer took 2.23ms. Allocated memory is still 136.3MB. Free memory is still 90.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:38:37,688 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 109.1MB. Free memory was 82.0MB in the beginning and 81.9MB in the end (delta: 90.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 220.73ms. Allocated memory is still 109.1MB. Free memory was 65.2MB in the beginning and 81.0MB in the end (delta: -15.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.76ms. Allocated memory is still 109.1MB. Free memory was 80.6MB in the beginning and 78.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.49ms. Allocated memory is still 109.1MB. Free memory was 78.5MB in the beginning and 76.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 317.36ms. Allocated memory is still 109.1MB. Free memory was 76.9MB in the beginning and 60.8MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 2311.97ms. Allocated memory was 109.1MB in the beginning and 136.3MB in the end (delta: 27.3MB). Free memory was 60.8MB in the beginning and 90.3MB in the end (delta: -29.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.23ms. Allocated memory is still 136.3MB. Free memory is still 90.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (1 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * e + 253 and consists of 4 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 34 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 30 states and ocurred in iteration 3. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 229 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 224 mSDsluCounter, 284 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 257 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp57 ukn100 mio100 lsp100 div583 bol100 ite100 ukn100 eq132 hnf44 smp92 dnf100 smp100 tf105 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 24ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-06 19:38:37,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-12-06 19:38:37,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9751aff9-9631-4df5-a4e0-d6c941a879c8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE