./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF --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 c7e459611ed6ff9d4c49aa04980ca7f1d5aaaf97e8fc0116c264955df4ed453a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:29:04,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:29:04,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:29:04,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:29:04,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:29:04,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:29:04,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:29:04,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:29:04,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:29:04,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:29:04,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:29:04,914 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:29:04,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:29:04,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:29:04,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:29:04,929 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:29:04,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:29:04,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:29:04,940 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:29:04,948 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:29:04,953 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:29:04,955 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:29:04,957 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:29:04,958 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:29:04,962 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:29:04,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:29:04,964 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:29:04,965 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:29:04,966 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:29:04,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:29:04,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:29:04,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:29:04,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:29:04,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:29:04,973 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:29:04,973 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:29:04,974 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:29:04,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:29:04,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:29:04,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:29:04,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:29:04,978 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-20 07:29:05,012 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:29:05,012 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:29:05,013 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:29:05,013 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:29:05,014 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:29:05,015 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:29:05,015 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:29:05,016 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 07:29:05,016 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 07:29:05,016 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 07:29:05,016 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 07:29:05,017 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 07:29:05,017 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 07:29:05,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:29:05,018 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:29:05,018 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 07:29:05,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:29:05,019 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:29:05,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:29:05,019 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 07:29:05,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 07:29:05,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 07:29:05,020 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:29:05,020 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:29:05,021 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 07:29:05,021 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:29:05,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 07:29:05,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:29:05,022 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:29:05,022 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:29:05,023 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:29:05,023 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:29:05,024 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 07:29:05,025 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_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7e459611ed6ff9d4c49aa04980ca7f1d5aaaf97e8fc0116c264955df4ed453a [2021-11-20 07:29:05,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:29:05,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:29:05,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:29:05,338 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:29:05,339 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:29:05,341 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2021-11-20 07:29:05,435 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/data/c3b1a5d95/404e41cd6f6443c09b4347cb7e89434c/FLAGab5323dc3 [2021-11-20 07:29:06,089 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:29:06,089 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2021-11-20 07:29:06,098 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/data/c3b1a5d95/404e41cd6f6443c09b4347cb7e89434c/FLAGab5323dc3 [2021-11-20 07:29:06,442 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/data/c3b1a5d95/404e41cd6f6443c09b4347cb7e89434c [2021-11-20 07:29:06,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:29:06,447 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:29:06,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:29:06,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:29:06,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:29:06,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:29:06" (1/1) ... [2021-11-20 07:29:06,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65ce597b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:06, skipping insertion in model container [2021-11-20 07:29:06,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:29:06" (1/1) ... [2021-11-20 07:29:06,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:29:06,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:29:06,705 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_a15f144e-7daf-4220-9918-1406979be1e9/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c[730,743] [2021-11-20 07:29:06,775 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:29:06,785 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:29:06,798 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_a15f144e-7daf-4220-9918-1406979be1e9/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c[730,743] [2021-11-20 07:29:06,831 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:29:06,847 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:29:06,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:06 WrapperNode [2021-11-20 07:29:06,848 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:29:06,850 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:29:06,850 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:29:06,851 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:29:06,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:06" (1/1) ... [2021-11-20 07:29:06,872 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:06" (1/1) ... [2021-11-20 07:29:06,913 INFO L137 Inliner]: procedures = 17, calls = 18, calls flagged for inlining = 13, calls inlined = 14, statements flattened = 301 [2021-11-20 07:29:06,913 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:29:06,914 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:29:06,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:29:06,915 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:29:06,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:06" (1/1) ... [2021-11-20 07:29:06,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:06" (1/1) ... [2021-11-20 07:29:06,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:06" (1/1) ... [2021-11-20 07:29:06,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:06" (1/1) ... [2021-11-20 07:29:06,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:06" (1/1) ... [2021-11-20 07:29:06,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:06" (1/1) ... [2021-11-20 07:29:06,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:06" (1/1) ... [2021-11-20 07:29:06,957 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:29:06,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:29:06,974 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:29:06,974 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:29:06,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:06" (1/1) ... [2021-11-20 07:29:06,992 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:07,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:29:07,019 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:29:07,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 07:29:07,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:29:07,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:29:07,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:29:07,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:29:07,151 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:29:07,153 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:29:07,513 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:29:07,522 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:29:07,523 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-20 07:29:07,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:29:07 BoogieIcfgContainer [2021-11-20 07:29:07,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:29:07,526 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 07:29:07,527 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 07:29:07,530 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 07:29:07,531 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:29:07,532 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 07:29:06" (1/3) ... [2021-11-20 07:29:07,533 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@714e9f3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:29:07, skipping insertion in model container [2021-11-20 07:29:07,533 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:29:07,533 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:06" (2/3) ... [2021-11-20 07:29:07,534 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@714e9f3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:29:07, skipping insertion in model container [2021-11-20 07:29:07,534 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:29:07,534 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:29:07" (3/3) ... [2021-11-20 07:29:07,536 INFO L388 chiAutomizerObserver]: Analyzing ICFG soft_float_4-3a.c.cil.c [2021-11-20 07:29:07,602 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 07:29:07,602 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 07:29:07,602 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 07:29:07,602 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 07:29:07,603 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 07:29:07,603 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 07:29:07,603 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 07:29:07,603 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 07:29:07,642 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 79 states, 78 states have (on average 1.6282051282051282) internal successors, (127), 78 states have internal predecessors, (127), 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) [2021-11-20 07:29:07,670 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2021-11-20 07:29:07,670 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:29:07,671 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:29:07,676 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-20 07:29:07,676 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 07:29:07,677 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 07:29:07,677 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 79 states, 78 states have (on average 1.6282051282051282) internal successors, (127), 78 states have internal predecessors, (127), 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) [2021-11-20 07:29:07,685 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2021-11-20 07:29:07,686 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:29:07,686 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:29:07,686 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-20 07:29:07,687 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 07:29:07,695 INFO L791 eck$LassoCheckResult]: Stem: 60#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); 47#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; 24#L29true assume !(0 == base2flt_~m#1 % 4294967296); 57#L35true assume !(base2flt_~m#1 % 4294967296 < 16777216); 68#L57-2true [2021-11-20 07:29:07,695 INFO L793 eck$LassoCheckResult]: Loop: 68#L57-2true assume !false; 45#L58true assume base2flt_~m#1 % 4294967296 >= 33554432; 40#L59true assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 68#L57-2true [2021-11-20 07:29:07,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:07,703 INFO L85 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2021-11-20 07:29:07,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:29:07,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850960201] [2021-11-20 07:29:07,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:29:07,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:29:07,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:07,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:29:07,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:29:07,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850960201] [2021-11-20 07:29:07,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850960201] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:29:07,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:29:07,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:29:07,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935012617] [2021-11-20 07:29:07,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:29:08,023 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-20 07:29:08,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:08,024 INFO L85 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2021-11-20 07:29:08,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:29:08,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488406871] [2021-11-20 07:29:08,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:29:08,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:29:08,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:29:08,041 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:29:08,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:29:08,071 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:29:08,133 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:29:08,134 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:29:08,134 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:29:08,134 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:29:08,134 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 07:29:08,134 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:08,135 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:29:08,135 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:29:08,135 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration1_Loop [2021-11-20 07:29:08,135 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:29:08,135 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:29:08,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:29:08,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:29:08,276 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:29:08,277 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 07:29:08,280 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:08,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:29:08,285 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:29:08,290 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:29:08,291 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:29:08,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-20 07:29:08,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-20 07:29:08,354 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:08,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:29:08,356 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:29:08,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-20 07:29:08,362 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 07:29:08,363 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:29:08,418 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 07:29:08,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-20 07:29:08,426 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:29:08,426 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:29:08,426 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:29:08,426 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:29:08,426 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 07:29:08,427 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:08,427 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:29:08,427 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:29:08,427 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration1_Loop [2021-11-20 07:29:08,427 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:29:08,428 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:29:08,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:29:08,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:29:08,554 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:29:08,561 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 07:29:08,567 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:08,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:29:08,573 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:29:08,577 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 [2021-11-20 07:29:08,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:29:08,589 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:29:08,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:29:08,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:29:08,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:29:08,595 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:29:08,595 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:29:08,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-20 07:29:08,612 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 07:29:08,622 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-20 07:29:08,623 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-20 07:29:08,624 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:08,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:29:08,626 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:29:08,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-20 07:29:08,645 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 07:29:08,645 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 07:29:08,646 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 07:29:08,647 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2021-11-20 07:29:08,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-20 07:29:08,696 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 07:29:08,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:08,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:08,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:29:08,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:29:08,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:08,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:29:08,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:29:08,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:29:08,875 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 [2021-11-20 07:29:08,878 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 79 states, 78 states have (on average 1.6282051282051282) internal successors, (127), 78 states have internal predecessors, (127), 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) [2021-11-20 07:29:09,034 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 79 states, 78 states have (on average 1.6282051282051282) internal successors, (127), 78 states have internal predecessors, (127), 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 233 states and 361 transitions. Complement of second has 6 states. [2021-11-20 07:29:09,036 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 [2021-11-20 07:29:09,044 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) [2021-11-20 07:29:09,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 236 transitions. [2021-11-20 07:29:09,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 236 transitions. Stem has 4 letters. Loop has 3 letters. [2021-11-20 07:29:09,049 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:29:09,049 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 236 transitions. Stem has 7 letters. Loop has 3 letters. [2021-11-20 07:29:09,049 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:29:09,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 236 transitions. Stem has 4 letters. Loop has 6 letters. [2021-11-20 07:29:09,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:29:09,051 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 233 states and 361 transitions. [2021-11-20 07:29:09,065 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2021-11-20 07:29:09,071 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 233 states to 57 states and 82 transitions. [2021-11-20 07:29:09,072 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2021-11-20 07:29:09,073 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2021-11-20 07:29:09,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 82 transitions. [2021-11-20 07:29:09,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:29:09,074 INFO L681 BuchiCegarLoop]: Abstraction has 57 states and 82 transitions. [2021-11-20 07:29:09,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 82 transitions. [2021-11-20 07:29:09,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 46. [2021-11-20 07:29:09,115 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) [2021-11-20 07:29:09,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 70 transitions. [2021-11-20 07:29:09,117 INFO L704 BuchiCegarLoop]: Abstraction has 46 states and 70 transitions. [2021-11-20 07:29:09,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:29:09,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:29:09,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:29:09,121 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) [2021-11-20 07:29:09,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:29:09,177 INFO L93 Difference]: Finished difference Result 24 states and 31 transitions. [2021-11-20 07:29:09,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:29:09,179 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2021-11-20 07:29:09,181 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-11-20 07:29:09,182 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 31 transitions. [2021-11-20 07:29:09,182 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2021-11-20 07:29:09,183 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-11-20 07:29:09,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2021-11-20 07:29:09,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:29:09,184 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-11-20 07:29:09,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2021-11-20 07:29:09,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-11-20 07:29:09,190 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) [2021-11-20 07:29:09,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2021-11-20 07:29:09,191 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-11-20 07:29:09,191 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-11-20 07:29:09,191 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 07:29:09,192 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 31 transitions. [2021-11-20 07:29:09,195 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-11-20 07:29:09,196 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:29:09,196 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:29:09,196 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:29:09,197 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 07:29:09,197 INFO L791 eck$LassoCheckResult]: Stem: 428#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); 429#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; 435#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 433#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 434#L80 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; 436#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 437#L35-1 assume !(base2flt_~m#1 % 4294967296 < 16777216); 441#L57-5 [2021-11-20 07:29:09,198 INFO L793 eck$LassoCheckResult]: Loop: 441#L57-5 assume !false; 443#L58-1 assume base2flt_~m#1 % 4294967296 >= 33554432; 444#L59-1 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 441#L57-5 [2021-11-20 07:29:09,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:09,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1806627809, now seen corresponding path program 1 times [2021-11-20 07:29:09,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:29:09,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177880219] [2021-11-20 07:29:09,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:29:09,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:29:09,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:29:09,228 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:29:09,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:29:09,275 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:29:09,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:09,276 INFO L85 PathProgramCache]: Analyzing trace with hash 137171, now seen corresponding path program 1 times [2021-11-20 07:29:09,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:29:09,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31907809] [2021-11-20 07:29:09,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:29:09,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:29:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:29:09,286 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:29:09,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:29:09,296 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:29:09,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:09,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1013979123, now seen corresponding path program 1 times [2021-11-20 07:29:09,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:29:09,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762657524] [2021-11-20 07:29:09,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:29:09,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:29:09,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:29:09,315 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:29:09,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:29:09,339 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:29:09,375 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:29:09,375 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:29:09,375 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:29:09,375 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:29:09,376 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 07:29:09,376 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:09,376 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:29:09,376 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:29:09,376 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration2_Loop [2021-11-20 07:29:09,376 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:29:09,376 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:29:09,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:29:09,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:29:09,499 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:29:09,500 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 07:29:09,500 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:09,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:29:09,519 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:29:09,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-20 07:29:09,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-20 07:29:09,540 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:29:09,540 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:29:09,600 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 07:29:09,600 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: [] [2021-11-20 07:29:09,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-20 07:29:09,608 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:09,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:29:09,610 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:29:09,621 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:29:09,621 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:29:09,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-20 07:29:09,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-20 07:29:09,687 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:09,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:29:09,689 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:29:09,695 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 07:29:09,695 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:29:09,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-20 07:29:09,783 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 07:29:09,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-20 07:29:09,787 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:29:09,787 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:29:09,787 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:29:09,787 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:29:09,787 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 07:29:09,787 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:09,787 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:29:09,787 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:29:09,788 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration2_Loop [2021-11-20 07:29:09,788 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:29:09,788 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:29:09,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:29:09,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:29:09,909 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:29:09,909 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 07:29:09,909 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:09,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:29:09,913 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:29:09,922 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 [2021-11-20 07:29:09,932 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:29:09,932 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:29:09,933 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:29:09,933 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:29:09,933 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:29:09,936 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:29:09,936 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:29:09,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-20 07:29:09,956 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:29:09,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-20 07:29:09,999 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:09,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:29:10,001 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:29:10,008 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 [2021-11-20 07:29:10,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:29:10,020 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:29:10,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:29:10,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:29:10,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:29:10,023 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:29:10,023 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:29:10,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-20 07:29:10,027 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 07:29:10,050 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-20 07:29:10,050 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-20 07:29:10,050 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:10,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:29:10,051 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:29:10,061 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 07:29:10,061 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 07:29:10,061 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 07:29:10,061 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2021-11-20 07:29:10,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-20 07:29:10,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-20 07:29:10,093 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 07:29:10,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:10,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:29:10,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:29:10,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:10,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:29:10,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:29:10,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:29:10,209 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 [2021-11-20 07:29:10,210 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) [2021-11-20 07:29:10,237 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. [2021-11-20 07:29:10,240 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 [2021-11-20 07:29:10,241 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) [2021-11-20 07:29:10,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2021-11-20 07:29:10,242 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 7 letters. Loop has 3 letters. [2021-11-20 07:29:10,242 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:29:10,242 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 10 letters. Loop has 3 letters. [2021-11-20 07:29:10,242 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:29:10,243 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 7 letters. Loop has 6 letters. [2021-11-20 07:29:10,243 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:29:10,243 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 51 transitions. [2021-11-20 07:29:10,244 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2021-11-20 07:29:10,245 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 38 states and 47 transitions. [2021-11-20 07:29:10,245 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2021-11-20 07:29:10,245 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2021-11-20 07:29:10,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 47 transitions. [2021-11-20 07:29:10,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:29:10,246 INFO L681 BuchiCegarLoop]: Abstraction has 38 states and 47 transitions. [2021-11-20 07:29:10,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 47 transitions. [2021-11-20 07:29:10,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 27. [2021-11-20 07:29:10,248 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) [2021-11-20 07:29:10,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2021-11-20 07:29:10,249 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-11-20 07:29:10,251 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-11-20 07:29:10,252 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-20 07:29:10,252 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2021-11-20 07:29:10,255 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-11-20 07:29:10,255 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:29:10,255 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:29:10,256 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:29:10,256 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 07:29:10,257 INFO L791 eck$LassoCheckResult]: Stem: 546#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); 547#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; 550#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 548#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 549#L80 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; 551#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 552#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 562#L47-3 [2021-11-20 07:29:10,257 INFO L793 eck$LassoCheckResult]: Loop: 562#L47-3 assume !false; 543#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 545#L47-2 assume base2flt_~m#1 % 4294967296 < 16777216; 562#L47-3 [2021-11-20 07:29:10,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:10,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1806627783, now seen corresponding path program 1 times [2021-11-20 07:29:10,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:29:10,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228098860] [2021-11-20 07:29:10,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:29:10,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:29:10,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:29:10,280 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:29:10,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:29:10,308 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:29:10,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:10,308 INFO L85 PathProgramCache]: Analyzing trace with hash 111412, now seen corresponding path program 1 times [2021-11-20 07:29:10,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:29:10,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651112672] [2021-11-20 07:29:10,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:29:10,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:29:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:29:10,314 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:29:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:29:10,327 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:29:10,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:10,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1013178798, now seen corresponding path program 1 times [2021-11-20 07:29:10,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:29:10,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240221359] [2021-11-20 07:29:10,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:29:10,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:29:10,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:29:10,352 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:29:10,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:29:10,368 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:29:10,419 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:29:10,420 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:29:10,420 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:29:10,420 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:29:10,420 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 07:29:10,420 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:10,420 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:29:10,420 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:29:10,420 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration3_Loop [2021-11-20 07:29:10,420 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:29:10,420 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:29:10,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:29:10,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:29:10,504 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:29:10,504 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 07:29:10,504 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:10,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:29:10,509 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:29:10,514 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:29:10,514 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:29:10,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-20 07:29:10,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-20 07:29:10,570 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:10,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:29:10,573 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:29:10,580 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 07:29:10,580 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:29:10,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-20 07:29:10,657 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 07:29:10,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-20 07:29:10,665 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:29:10,665 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:29:10,665 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:29:10,665 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:29:10,665 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 07:29:10,665 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:10,665 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:29:10,666 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:29:10,666 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration3_Loop [2021-11-20 07:29:10,666 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:29:10,666 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:29:10,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:29:10,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:29:10,743 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:29:10,743 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 07:29:10,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:10,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:29:10,745 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:29:10,750 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 [2021-11-20 07:29:10,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:29:10,761 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:29:10,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:29:10,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:29:10,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:29:10,763 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:29:10,763 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:29:10,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-20 07:29:10,784 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 07:29:10,787 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-20 07:29:10,787 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-20 07:29:10,787 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:10,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:29:10,789 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:29:10,795 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 07:29:10,795 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 07:29:10,795 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 07:29:10,795 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2021-11-20 07:29:10,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-20 07:29:10,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-20 07:29:10,833 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 07:29:10,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:10,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:10,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:29:10,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:29:10,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:10,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:29:10,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:29:10,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:29:10,949 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 [2021-11-20 07:29:10,949 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) [2021-11-20 07:29:10,963 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. [2021-11-20 07:29:10,963 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 [2021-11-20 07:29:10,965 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) [2021-11-20 07:29:10,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 34 transitions. [2021-11-20 07:29:10,965 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 34 transitions. Stem has 7 letters. Loop has 3 letters. [2021-11-20 07:29:10,965 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:29:10,966 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 34 transitions. Stem has 10 letters. Loop has 3 letters. [2021-11-20 07:29:10,966 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:29:10,966 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 34 transitions. Stem has 7 letters. Loop has 6 letters. [2021-11-20 07:29:10,967 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:29:10,967 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 56 transitions. [2021-11-20 07:29:10,968 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-11-20 07:29:10,969 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 42 states and 52 transitions. [2021-11-20 07:29:10,969 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2021-11-20 07:29:10,970 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-11-20 07:29:10,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 52 transitions. [2021-11-20 07:29:10,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:29:10,970 INFO L681 BuchiCegarLoop]: Abstraction has 42 states and 52 transitions. [2021-11-20 07:29:10,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 52 transitions. [2021-11-20 07:29:10,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 30. [2021-11-20 07:29:10,973 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) [2021-11-20 07:29:10,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2021-11-20 07:29:10,974 INFO L704 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2021-11-20 07:29:10,974 INFO L587 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2021-11-20 07:29:10,974 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-20 07:29:10,974 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 39 transitions. [2021-11-20 07:29:10,975 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-11-20 07:29:10,975 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:29:10,975 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:29:10,976 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:29:10,976 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 07:29:10,976 INFO L791 eck$LassoCheckResult]: Stem: 670#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); 671#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; 674#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 672#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 673#L80 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; 675#L29-1 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 667#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 691#L80-1 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; 693#L29-2 assume !(0 == base2flt_~m#1 % 4294967296); 692#L35-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 678#L57-8 [2021-11-20 07:29:10,977 INFO L793 eck$LassoCheckResult]: Loop: 678#L57-8 assume !false; 690#L58-2 assume base2flt_~m#1 % 4294967296 >= 33554432; 677#L59-2 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 678#L57-8 [2021-11-20 07:29:10,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:10,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1012956351, now seen corresponding path program 1 times [2021-11-20 07:29:10,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:29:10,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263559928] [2021-11-20 07:29:10,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:29:10,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:29:10,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:29:10,989 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:29:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:29:11,003 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:29:11,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:11,004 INFO L85 PathProgramCache]: Analyzing trace with hash 199730, now seen corresponding path program 1 times [2021-11-20 07:29:11,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:29:11,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658164783] [2021-11-20 07:29:11,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:29:11,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:29:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:29:11,010 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:29:11,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:29:11,016 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:29:11,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:11,017 INFO L85 PathProgramCache]: Analyzing trace with hash 542600884, now seen corresponding path program 1 times [2021-11-20 07:29:11,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:29:11,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613047902] [2021-11-20 07:29:11,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:29:11,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:29:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:29:11,041 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:29:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:29:11,067 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:29:11,109 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:29:11,110 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:29:11,110 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:29:11,110 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:29:11,110 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 07:29:11,110 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:11,110 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:29:11,111 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:29:11,111 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration4_Loop [2021-11-20 07:29:11,111 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:29:11,111 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:29:11,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:29:11,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:29:11,220 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:29:11,221 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 07:29:11,221 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:11,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:29:11,222 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:29:11,233 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:29:11,233 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:29:11,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-20 07:29:11,293 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 07:29:11,294 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: [] [2021-11-20 07:29:11,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-20 07:29:11,302 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:11,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:29:11,303 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:29:11,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-20 07:29:11,314 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:29:11,314 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:29:11,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-20 07:29:11,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:11,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:29:11,387 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:29:11,394 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 07:29:11,394 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:29:11,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-20 07:29:11,446 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 07:29:11,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-20 07:29:11,449 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:29:11,449 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:29:11,449 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:29:11,449 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:29:11,449 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 07:29:11,450 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:11,450 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:29:11,450 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:29:11,450 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration4_Loop [2021-11-20 07:29:11,450 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:29:11,450 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:29:11,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:29:11,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:29:11,551 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:29:11,551 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 07:29:11,551 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:11,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:29:11,552 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:29:11,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-20 07:29:11,562 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 [2021-11-20 07:29:11,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:29:11,576 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:29:11,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:29:11,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:29:11,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:29:11,580 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:29:11,581 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:29:11,587 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:29:11,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-20 07:29:11,632 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:11,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:29:11,633 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:29:11,650 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 [2021-11-20 07:29:11,661 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:29:11,661 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:29:11,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:29:11,662 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:29:11,662 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:29:11,663 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:29:11,663 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:29:11,677 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 07:29:11,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-20 07:29:11,696 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-20 07:29:11,696 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-20 07:29:11,696 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:11,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:29:11,712 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:29:11,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-11-20 07:29:11,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-20 07:29:11,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-11-20 07:29:11,742 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 07:29:11,742 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 07:29:11,742 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 07:29:11,743 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2021-11-20 07:29:11,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-20 07:29:11,770 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 07:29:11,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:11,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:11,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:29:11,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:29:11,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:11,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:29:11,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:29:11,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:29:11,893 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 [2021-11-20 07:29:11,893 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) [2021-11-20 07:29:11,908 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. [2021-11-20 07:29:11,908 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 [2021-11-20 07:29:11,911 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) [2021-11-20 07:29:11,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 31 transitions. [2021-11-20 07:29:11,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 10 letters. Loop has 3 letters. [2021-11-20 07:29:11,913 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:29:11,913 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 13 letters. Loop has 3 letters. [2021-11-20 07:29:11,913 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:29:11,913 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 10 letters. Loop has 6 letters. [2021-11-20 07:29:11,914 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:29:11,915 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 43 transitions. [2021-11-20 07:29:11,916 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 07:29:11,917 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 27 states and 35 transitions. [2021-11-20 07:29:11,917 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2021-11-20 07:29:11,918 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2021-11-20 07:29:11,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2021-11-20 07:29:11,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:29:11,919 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-11-20 07:29:11,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2021-11-20 07:29:11,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-11-20 07:29:11,926 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) [2021-11-20 07:29:11,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2021-11-20 07:29:11,927 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-11-20 07:29:11,927 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-11-20 07:29:11,927 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-20 07:29:11,927 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2021-11-20 07:29:11,930 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 07:29:11,930 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:29:11,930 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:29:11,931 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:29:11,931 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 07:29:11,931 INFO L791 eck$LassoCheckResult]: Stem: 787#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); 788#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; 795#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 793#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 794#L80 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; 796#L29-1 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 790#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 809#L80-1 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; 811#L29-2 assume !(0 == base2flt_~m#1 % 4294967296); 810#L35-2 assume base2flt_~m#1 % 4294967296 < 16777216; 785#L47-5 [2021-11-20 07:29:11,931 INFO L793 eck$LassoCheckResult]: Loop: 785#L47-5 assume !false; 786#L38-2 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 798#L47-4 assume base2flt_~m#1 % 4294967296 < 16777216; 785#L47-5 [2021-11-20 07:29:11,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:11,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1012956325, now seen corresponding path program 1 times [2021-11-20 07:29:11,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:29:11,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684662004] [2021-11-20 07:29:11,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:29:11,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:29:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:29:11,959 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:29:11,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:29:12,000 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:29:12,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:12,001 INFO L85 PathProgramCache]: Analyzing trace with hash 173971, now seen corresponding path program 1 times [2021-11-20 07:29:12,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:29:12,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019213567] [2021-11-20 07:29:12,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:29:12,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:29:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:29:12,016 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:29:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:29:12,020 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:29:12,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:12,021 INFO L85 PathProgramCache]: Analyzing trace with hash 541800559, now seen corresponding path program 1 times [2021-11-20 07:29:12,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:29:12,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824956136] [2021-11-20 07:29:12,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:29:12,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:29:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:29:12,058 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:29:12,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:29:12,080 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:29:12,114 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:29:12,115 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:29:12,115 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:29:12,115 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:29:12,115 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 07:29:12,115 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:12,116 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:29:12,116 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:29:12,116 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration5_Loop [2021-11-20 07:29:12,116 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:29:12,116 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:29:12,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:29:12,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:29:12,184 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:29:12,184 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 07:29:12,185 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:12,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:29:12,189 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:29:12,196 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:29:12,197 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:29:12,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-20 07:29:12,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-11-20 07:29:12,268 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:12,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:29:12,273 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:29:12,278 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 07:29:12,278 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:29:12,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-20 07:29:12,357 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 07:29:12,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-11-20 07:29:12,365 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:29:12,365 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:29:12,365 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:29:12,366 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:29:12,366 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 07:29:12,366 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:12,366 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:29:12,366 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:29:12,366 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration5_Loop [2021-11-20 07:29:12,366 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:29:12,366 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:29:12,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:29:12,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:29:12,433 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:29:12,434 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 07:29:12,434 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:12,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:29:12,437 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:29:12,439 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 [2021-11-20 07:29:12,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:29:12,450 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:29:12,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:29:12,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:29:12,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:29:12,453 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:29:12,453 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:29:12,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-20 07:29:12,464 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 07:29:12,469 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-20 07:29:12,469 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-20 07:29:12,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:29:12,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:29:12,471 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:29:12,473 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 07:29:12,473 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 07:29:12,474 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 07:29:12,474 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2021-11-20 07:29:12,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-20 07:29:12,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-11-20 07:29:12,514 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 07:29:12,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:12,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:12,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:29:12,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:29:12,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:12,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:29:12,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:29:12,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:29:12,650 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 [2021-11-20 07:29:12,651 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) [2021-11-20 07:29:12,668 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. [2021-11-20 07:29:12,668 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 [2021-11-20 07:29:12,670 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) [2021-11-20 07:29:12,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 28 transitions. [2021-11-20 07:29:12,671 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 10 letters. Loop has 3 letters. [2021-11-20 07:29:12,673 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:29:12,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 13 letters. Loop has 3 letters. [2021-11-20 07:29:12,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:29:12,675 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 10 letters. Loop has 6 letters. [2021-11-20 07:29:12,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:29:12,675 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2021-11-20 07:29:12,676 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 07:29:12,676 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2021-11-20 07:29:12,676 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-20 07:29:12,676 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-20 07:29:12,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-20 07:29:12,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:29:12,677 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:29:12,677 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:29:12,677 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:29:12,677 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-11-20 07:29:12,678 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-20 07:29:12,678 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 07:29:12,678 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-20 07:29:12,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 07:29:12 BoogieIcfgContainer [2021-11-20 07:29:12,695 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 07:29:12,696 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:29:12,696 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:29:12,696 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:29:12,697 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:29:07" (3/4) ... [2021-11-20 07:29:12,700 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 07:29:12,700 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:29:12,705 INFO L158 Benchmark]: Toolchain (without parser) took 6253.86ms. Allocated memory was 109.1MB in the beginning and 165.7MB in the end (delta: 56.6MB). Free memory was 78.8MB in the beginning and 101.7MB in the end (delta: -22.9MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. [2021-11-20 07:29:12,706 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 109.1MB. Free memory is still 63.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:29:12,708 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.52ms. Allocated memory was 109.1MB in the beginning and 136.3MB in the end (delta: 27.3MB). Free memory was 78.8MB in the beginning and 107.3MB in the end (delta: -28.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 07:29:12,709 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.73ms. Allocated memory is still 136.3MB. Free memory was 107.3MB in the beginning and 104.8MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 07:29:12,709 INFO L158 Benchmark]: Boogie Preprocessor took 57.80ms. Allocated memory is still 136.3MB. Free memory was 104.8MB in the beginning and 103.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:29:12,710 INFO L158 Benchmark]: RCFGBuilder took 552.07ms. Allocated memory is still 136.3MB. Free memory was 103.3MB in the beginning and 87.5MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-20 07:29:12,710 INFO L158 Benchmark]: BuchiAutomizer took 5168.96ms. Allocated memory was 136.3MB in the beginning and 165.7MB in the end (delta: 29.4MB). Free memory was 87.2MB in the beginning and 101.7MB in the end (delta: -14.5MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2021-11-20 07:29:12,710 INFO L158 Benchmark]: Witness Printer took 4.51ms. Allocated memory is still 165.7MB. Free memory is still 101.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:29:12,713 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 109.1MB. Free memory is still 63.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 399.52ms. Allocated memory was 109.1MB in the beginning and 136.3MB in the end (delta: 27.3MB). Free memory was 78.8MB in the beginning and 107.3MB in the end (delta: -28.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.73ms. Allocated memory is still 136.3MB. Free memory was 107.3MB in the beginning and 104.8MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.80ms. Allocated memory is still 136.3MB. Free memory was 104.8MB in the beginning and 103.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 552.07ms. Allocated memory is still 136.3MB. Free memory was 103.3MB in the beginning and 87.5MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 5168.96ms. Allocated memory was 136.3MB in the beginning and 165.7MB in the end (delta: 29.4MB). Free memory was 87.2MB in the beginning and 101.7MB in the end (delta: -14.5MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * Witness Printer took 4.51ms. Allocated memory is still 165.7MB. Free memory is still 101.7MB. 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 5.1s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 3.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.9s. 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, 231 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 226 mSDsluCounter, 286 SdHoareTripleChecker+Invalid, 0.1s 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, 259 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: 79ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-20 07:29:12,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-11-20 07:29:12,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-11-20 07:29:13,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15f144e-7daf-4220-9918-1406979be1e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE