./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/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_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c7e459611ed6ff9d4c49aa04980ca7f1d5aaaf97e8fc0116c264955df4ed453a --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 19:54:44,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 19:54:44,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 19:54:44,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 19:54:44,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 19:54:44,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 19:54:44,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 19:54:44,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 19:54:44,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 19:54:44,494 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 19:54:44,495 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 19:54:44,496 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 19:54:44,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 19:54:44,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 19:54:44,499 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 19:54:44,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 19:54:44,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 19:54:44,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 19:54:44,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 19:54:44,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 19:54:44,509 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 19:54:44,510 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 19:54:44,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 19:54:44,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 19:54:44,516 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 19:54:44,517 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 19:54:44,517 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 19:54:44,518 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 19:54:44,519 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 19:54:44,520 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 19:54:44,520 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 19:54:44,521 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 19:54:44,521 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 19:54:44,522 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 19:54:44,523 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 19:54:44,523 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 19:54:44,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 19:54:44,524 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 19:54:44,524 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 19:54:44,525 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 19:54:44,525 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 19:54:44,526 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-06 19:54:44,543 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 19:54:44,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 19:54:44,543 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 19:54:44,543 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 19:54:44,544 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 19:54:44,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 19:54:44,544 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 19:54:44,545 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 19:54:44,545 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 19:54:44,545 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 19:54:44,545 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 19:54:44,545 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 19:54:44,545 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 19:54:44,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 19:54:44,545 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 19:54:44,545 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 19:54:44,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 19:54:44,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 19:54:44,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 19:54:44,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 19:54:44,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 19:54:44,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 19:54:44,546 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 19:54:44,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 19:54:44,546 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 19:54:44,546 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 19:54:44,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 19:54:44,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 19:54:44,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 19:54:44,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 19:54:44,547 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 19:54:44,547 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 19:54:44,548 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 19:54:44,548 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_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7e459611ed6ff9d4c49aa04980ca7f1d5aaaf97e8fc0116c264955df4ed453a [2021-12-06 19:54:44,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 19:54:44,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 19:54:44,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 19:54:44,737 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 19:54:44,737 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 19:54:44,738 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2021-12-06 19:54:44,779 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/data/73f4681f2/a8689656e8ea494d85a557606574a92b/FLAGa93db0963 [2021-12-06 19:54:45,149 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 19:54:45,150 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2021-12-06 19:54:45,157 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/data/73f4681f2/a8689656e8ea494d85a557606574a92b/FLAGa93db0963 [2021-12-06 19:54:45,168 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/data/73f4681f2/a8689656e8ea494d85a557606574a92b [2021-12-06 19:54:45,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 19:54:45,172 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 19:54:45,173 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 19:54:45,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 19:54:45,175 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 19:54:45,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:54:45" (1/1) ... [2021-12-06 19:54:45,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a2a69c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:45, skipping insertion in model container [2021-12-06 19:54:45,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:54:45" (1/1) ... [2021-12-06 19:54:45,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 19:54:45,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:54:45,305 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_2cd9006d-7996-4c31-9c34-58c6e66f9610/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c[730,743] [2021-12-06 19:54:45,336 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:54:45,342 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 19:54:45,351 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_2cd9006d-7996-4c31-9c34-58c6e66f9610/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c[730,743] [2021-12-06 19:54:45,369 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:54:45,379 INFO L208 MainTranslator]: Completed translation [2021-12-06 19:54:45,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:45 WrapperNode [2021-12-06 19:54:45,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 19:54:45,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 19:54:45,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 19:54:45,380 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 19:54:45,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:45" (1/1) ... [2021-12-06 19:54:45,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:45" (1/1) ... [2021-12-06 19:54:45,412 INFO L137 Inliner]: procedures = 17, calls = 18, calls flagged for inlining = 13, calls inlined = 14, statements flattened = 301 [2021-12-06 19:54:45,413 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 19:54:45,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 19:54:45,413 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 19:54:45,413 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 19:54:45,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:45" (1/1) ... [2021-12-06 19:54:45,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:45" (1/1) ... [2021-12-06 19:54:45,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:45" (1/1) ... [2021-12-06 19:54:45,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:45" (1/1) ... [2021-12-06 19:54:45,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:45" (1/1) ... [2021-12-06 19:54:45,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:45" (1/1) ... [2021-12-06 19:54:45,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:45" (1/1) ... [2021-12-06 19:54:45,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 19:54:45,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 19:54:45,446 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 19:54:45,446 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 19:54:45,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:45" (1/1) ... [2021-12-06 19:54:45,454 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:45,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:45,471 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:54:45,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 19:54:45,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 19:54:45,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 19:54:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 19:54:45,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 19:54:45,556 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 19:54:45,558 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 19:54:45,783 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 19:54:45,790 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 19:54:45,790 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-12-06 19:54:45,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:54:45 BoogieIcfgContainer [2021-12-06 19:54:45,792 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 19:54:45,793 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 19:54:45,793 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 19:54:45,797 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 19:54:45,798 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 19:54:45,798 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 07:54:45" (1/3) ... [2021-12-06 19:54:45,799 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@8ae0b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 07:54:45, skipping insertion in model container [2021-12-06 19:54:45,799 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 19:54:45,799 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:45" (2/3) ... [2021-12-06 19:54:45,799 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@8ae0b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 07:54:45, skipping insertion in model container [2021-12-06 19:54:45,800 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 19:54:45,800 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:54:45" (3/3) ... [2021-12-06 19:54:45,801 INFO L388 chiAutomizerObserver]: Analyzing ICFG soft_float_4-3a.c.cil.c [2021-12-06 19:54:45,842 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 19:54:45,843 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 19:54:45,843 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 19:54:45,843 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 19:54:45,843 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 19:54:45,843 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 19:54:45,843 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 19:54:45,843 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 19:54:45,858 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) [2021-12-06 19:54:45,879 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2021-12-06 19:54:45,879 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:54:45,880 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:54:45,884 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-06 19:54:45,884 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 19:54:45,884 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 19:54:45,884 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) [2021-12-06 19:54:45,890 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2021-12-06 19:54:45,891 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:54:45,891 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:54:45,891 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-06 19:54:45,891 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 19:54:45,896 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 [2021-12-06 19:54:45,897 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 [2021-12-06 19:54:45,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:45,903 INFO L85 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2021-12-06 19:54:45,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:54:45,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615768688] [2021-12-06 19:54:45,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:45,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:54:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:46,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:46,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:54:46,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615768688] [2021-12-06 19:54:46,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615768688] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:54:46,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:54:46,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:54:46,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444746214] [2021-12-06 19:54:46,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:54:46,041 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 19:54:46,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:46,042 INFO L85 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2021-12-06 19:54:46,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:54:46,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28918874] [2021-12-06 19:54:46,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:46,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:54:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:54:46,051 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:54:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:54:46,067 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:54:46,113 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:54:46,113 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:54:46,113 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:54:46,113 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:54:46,113 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 19:54:46,114 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:46,114 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:54:46,114 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:54:46,114 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration1_Loop [2021-12-06 19:54:46,114 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:54:46,114 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:54:46,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:54:46,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:54:46,205 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:54:46,206 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 19:54:46,208 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:46,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:46,209 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:54:46,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-06 19:54:46,211 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:54:46,211 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:54:46,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-06 19:54:46,239 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:46,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:46,240 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:54:46,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-06 19:54:46,241 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 19:54:46,241 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:54:46,272 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 19:54:46,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-06 19:54:46,275 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:54:46,275 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:54:46,275 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:54:46,275 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:54:46,275 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 19:54:46,275 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:46,275 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:54:46,275 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:54:46,275 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration1_Loop [2021-12-06 19:54:46,275 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:54:46,276 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:54:46,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:54:46,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:54:46,327 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:54:46,330 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 19:54:46,331 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:46,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:46,332 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:54:46,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-06 19:54:46,333 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:54:46,342 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:54:46,343 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:54:46,343 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:54:46,343 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:54:46,343 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:54:46,346 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:54:46,346 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:54:46,348 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 19:54:46,355 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-06 19:54:46,355 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-06 19:54:46,356 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:46,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:46,358 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:54:46,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-06 19:54:46,366 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 19:54:46,366 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 19:54:46,366 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 19:54:46,367 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2021-12-06 19:54:46,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-06 19:54:46,387 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 19:54:46,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:46,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:54:46,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:54:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:46,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:54:46,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:54:46,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:46,459 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-12-06 19:54:46,461 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) [2021-12-06 19:54:46,519 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. [2021-12-06 19:54:46,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 19:54:46,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:46,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 236 transitions. [2021-12-06 19:54:46,526 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 236 transitions. Stem has 4 letters. Loop has 3 letters. [2021-12-06 19:54:46,526 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:54:46,526 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 236 transitions. Stem has 7 letters. Loop has 3 letters. [2021-12-06 19:54:46,527 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:54:46,527 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 236 transitions. Stem has 4 letters. Loop has 6 letters. [2021-12-06 19:54:46,527 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:54:46,527 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 233 states and 361 transitions. [2021-12-06 19:54:46,536 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2021-12-06 19:54:46,539 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 233 states to 57 states and 82 transitions. [2021-12-06 19:54:46,540 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2021-12-06 19:54:46,540 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2021-12-06 19:54:46,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 82 transitions. [2021-12-06 19:54:46,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 19:54:46,541 INFO L681 BuchiCegarLoop]: Abstraction has 57 states and 82 transitions. [2021-12-06 19:54:46,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 82 transitions. [2021-12-06 19:54:46,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 46. [2021-12-06 19:54:46,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 46 states have (on average 1.5217391304347827) internal successors, (70), 45 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:46,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 70 transitions. [2021-12-06 19:54:46,563 INFO L704 BuchiCegarLoop]: Abstraction has 46 states and 70 transitions. [2021-12-06 19:54:46,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:54:46,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:54:46,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:54:46,567 INFO L87 Difference]: Start difference. First operand 46 states and 70 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:46,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:54:46,593 INFO L93 Difference]: Finished difference Result 24 states and 31 transitions. [2021-12-06 19:54:46,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:54:46,594 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2021-12-06 19:54:46,594 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-12-06 19:54:46,595 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 31 transitions. [2021-12-06 19:54:46,595 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2021-12-06 19:54:46,595 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-12-06 19:54:46,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2021-12-06 19:54:46,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 19:54:46,595 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-12-06 19:54:46,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2021-12-06 19:54:46,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-12-06 19:54:46,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:46,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2021-12-06 19:54:46,597 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-12-06 19:54:46,597 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-12-06 19:54:46,597 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-06 19:54:46,597 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 31 transitions. [2021-12-06 19:54:46,597 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-12-06 19:54:46,597 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:54:46,598 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:54:46,598 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:54:46,598 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 19:54:46,598 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 [2021-12-06 19:54:46,598 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 [2021-12-06 19:54:46,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:46,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1806627809, now seen corresponding path program 1 times [2021-12-06 19:54:46,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:54:46,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223461283] [2021-12-06 19:54:46,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:46,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:54:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:54:46,611 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:54:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:54:46,624 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:54:46,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:46,625 INFO L85 PathProgramCache]: Analyzing trace with hash 137171, now seen corresponding path program 1 times [2021-12-06 19:54:46,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:54:46,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130643351] [2021-12-06 19:54:46,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:46,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:54:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:54:46,632 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:54:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:54:46,638 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:54:46,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:46,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1013979123, now seen corresponding path program 1 times [2021-12-06 19:54:46,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:54:46,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924184680] [2021-12-06 19:54:46,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:46,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:54:46,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:54:46,651 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:54:46,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:54:46,668 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:54:46,694 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:54:46,694 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:54:46,694 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:54:46,694 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:54:46,694 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 19:54:46,694 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:46,694 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:54:46,694 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:54:46,695 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration2_Loop [2021-12-06 19:54:46,695 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:54:46,695 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:54:46,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:54:46,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:54:46,749 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:54:46,749 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 19:54:46,750 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:46,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:46,751 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:54:46,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-06 19:54:46,756 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:54:46,756 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:54:46,798 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:54:46,798 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=-1} Honda state: {ULTIMATE.start_base2flt_~m#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 19:54:46,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-06 19:54:46,801 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:46,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:46,802 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:54:46,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-06 19:54:46,803 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:54:46,803 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:54:46,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-12-06 19:54:46,840 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:46,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:46,840 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:54:46,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-06 19:54:46,842 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 19:54:46,842 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:54:46,881 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 19:54:46,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-06 19:54:46,884 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:54:46,884 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:54:46,884 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:54:46,884 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:54:46,884 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 19:54:46,884 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:46,884 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:54:46,884 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:54:46,884 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration2_Loop [2021-12-06 19:54:46,885 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:54:46,885 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:54:46,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:54:46,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:54:46,942 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:54:46,943 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 19:54:46,943 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:46,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:46,944 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:54:46,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-06 19:54:46,945 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:54:46,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:54:46,953 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:54:46,954 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:54:46,954 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:54:46,954 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:54:46,955 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:54:46,955 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:54:46,958 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:54:46,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-06 19:54:46,986 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:46,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:46,987 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:54:46,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-06 19:54:46,988 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:54:46,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:54:46,995 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:54:46,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:54:46,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:54:46,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:54:46,996 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:54:46,996 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:54:46,997 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 19:54:46,999 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-06 19:54:46,999 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-06 19:54:46,999 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:46,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:47,021 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:54:47,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-06 19:54:47,026 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 19:54:47,027 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 19:54:47,027 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 19:54:47,027 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2021-12-06 19:54:47,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-06 19:54:47,096 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 19:54:47,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:47,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:47,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:54:47,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:54:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:47,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:54:47,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:54:47,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:47,146 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-12-06 19:54:47,147 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 31 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:47,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-12-06 19:54:47,155 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 31 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 41 states and 51 transitions. Complement of second has 5 states. [2021-12-06 19:54:47,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 19:54:47,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:47,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2021-12-06 19:54:47,156 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 7 letters. Loop has 3 letters. [2021-12-06 19:54:47,156 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:54:47,156 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 10 letters. Loop has 3 letters. [2021-12-06 19:54:47,156 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:54:47,156 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 7 letters. Loop has 6 letters. [2021-12-06 19:54:47,156 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:54:47,156 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 51 transitions. [2021-12-06 19:54:47,157 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2021-12-06 19:54:47,158 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 38 states and 47 transitions. [2021-12-06 19:54:47,158 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2021-12-06 19:54:47,158 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2021-12-06 19:54:47,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 47 transitions. [2021-12-06 19:54:47,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 19:54:47,158 INFO L681 BuchiCegarLoop]: Abstraction has 38 states and 47 transitions. [2021-12-06 19:54:47,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 47 transitions. [2021-12-06 19:54:47,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 27. [2021-12-06 19:54:47,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:47,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2021-12-06 19:54:47,160 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-12-06 19:54:47,160 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-12-06 19:54:47,160 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-06 19:54:47,160 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2021-12-06 19:54:47,160 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-12-06 19:54:47,160 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:54:47,161 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:54:47,161 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:54:47,161 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 19:54:47,161 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 [2021-12-06 19:54:47,161 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 [2021-12-06 19:54:47,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:47,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1806627783, now seen corresponding path program 1 times [2021-12-06 19:54:47,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:54:47,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143396694] [2021-12-06 19:54:47,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:47,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:54:47,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-06 19:54:47,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:54:47,169 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:54:47,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:54:47,177 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:54:47,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:47,177 INFO L85 PathProgramCache]: Analyzing trace with hash 111412, now seen corresponding path program 1 times [2021-12-06 19:54:47,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:54:47,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733942933] [2021-12-06 19:54:47,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:47,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:54:47,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:54:47,180 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:54:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:54:47,183 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:54:47,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:47,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1013178798, now seen corresponding path program 1 times [2021-12-06 19:54:47,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:54:47,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782967079] [2021-12-06 19:54:47,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:47,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:54:47,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:54:47,192 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:54:47,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:54:47,202 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:54:47,219 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:54:47,219 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:54:47,219 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:54:47,219 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:54:47,219 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 19:54:47,220 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:47,220 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:54:47,220 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:54:47,220 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration3_Loop [2021-12-06 19:54:47,220 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:54:47,220 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:54:47,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:54:47,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:54:47,256 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:54:47,256 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 19:54:47,256 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:47,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:47,257 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:54:47,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-06 19:54:47,258 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:54:47,258 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:54:47,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-06 19:54:47,285 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:47,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:47,286 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:54:47,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-06 19:54:47,287 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 19:54:47,287 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:54:47,317 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 19:54:47,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-12-06 19:54:47,319 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:54:47,320 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:54:47,320 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:54:47,320 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:54:47,320 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 19:54:47,320 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:47,320 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:54:47,320 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:54:47,320 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration3_Loop [2021-12-06 19:54:47,320 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:54:47,320 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:54:47,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:54:47,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:54:47,354 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:54:47,354 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 19:54:47,354 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:47,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:47,355 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:54:47,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-06 19:54:47,356 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:54:47,363 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:54:47,363 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:54:47,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:54:47,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:54:47,363 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:54:47,364 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:54:47,364 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:54:47,366 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 19:54:47,369 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-06 19:54:47,369 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-06 19:54:47,370 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:47,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:47,371 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:54:47,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-06 19:54:47,372 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 19:54:47,372 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 19:54:47,372 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 19:54:47,372 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2021-12-06 19:54:47,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-12-06 19:54:47,391 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 19:54:47,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:47,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:47,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:54:47,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:54:47,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:47,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:54:47,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:54:47,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:47,449 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-06 19:54:47,449 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:47,456 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 56 transitions. Complement of second has 5 states. [2021-12-06 19:54:47,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 19:54:47,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:47,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 34 transitions. [2021-12-06 19:54:47,457 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 34 transitions. Stem has 7 letters. Loop has 3 letters. [2021-12-06 19:54:47,457 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:54:47,457 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 34 transitions. Stem has 10 letters. Loop has 3 letters. [2021-12-06 19:54:47,457 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:54:47,457 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 34 transitions. Stem has 7 letters. Loop has 6 letters. [2021-12-06 19:54:47,458 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:54:47,458 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 56 transitions. [2021-12-06 19:54:47,458 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-12-06 19:54:47,459 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 42 states and 52 transitions. [2021-12-06 19:54:47,459 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2021-12-06 19:54:47,459 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-12-06 19:54:47,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 52 transitions. [2021-12-06 19:54:47,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 19:54:47,459 INFO L681 BuchiCegarLoop]: Abstraction has 42 states and 52 transitions. [2021-12-06 19:54:47,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 52 transitions. [2021-12-06 19:54:47,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 30. [2021-12-06 19:54:47,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.3) internal successors, (39), 29 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:47,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2021-12-06 19:54:47,461 INFO L704 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2021-12-06 19:54:47,461 INFO L587 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2021-12-06 19:54:47,461 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-06 19:54:47,461 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 39 transitions. [2021-12-06 19:54:47,462 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-12-06 19:54:47,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:54:47,462 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:54:47,462 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:54:47,462 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 19:54:47,462 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 [2021-12-06 19:54:47,462 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 [2021-12-06 19:54:47,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:47,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1012956351, now seen corresponding path program 1 times [2021-12-06 19:54:47,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:54:47,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17000054] [2021-12-06 19:54:47,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:47,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:54:47,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:54:47,470 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:54:47,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:54:47,479 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:54:47,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:47,479 INFO L85 PathProgramCache]: Analyzing trace with hash 199730, now seen corresponding path program 1 times [2021-12-06 19:54:47,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:54:47,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811679285] [2021-12-06 19:54:47,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:47,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:54:47,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:54:47,484 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:54:47,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:54:47,489 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:54:47,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:47,490 INFO L85 PathProgramCache]: Analyzing trace with hash 542600884, now seen corresponding path program 1 times [2021-12-06 19:54:47,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:54:47,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941706578] [2021-12-06 19:54:47,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:47,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:54:47,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:54:47,502 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:54:47,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:54:47,517 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:54:47,541 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:54:47,541 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:54:47,541 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:54:47,542 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:54:47,542 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 19:54:47,542 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:47,542 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:54:47,542 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:54:47,542 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration4_Loop [2021-12-06 19:54:47,542 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:54:47,542 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:54:47,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:54:47,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:54:47,585 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:54:47,585 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 19:54:47,586 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:47,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:47,586 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:54:47,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-06 19:54:47,588 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:54:47,588 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:54:47,624 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:54:47,624 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=-1} Honda state: {ULTIMATE.start_base2flt_~m#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 19:54:47,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-06 19:54:47,627 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:47,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:47,628 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:54:47,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-06 19:54:47,629 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:54:47,629 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:54:47,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-06 19:54:47,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:47,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:47,670 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:54:47,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-06 19:54:47,671 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 19:54:47,671 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:54:47,702 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 19:54:47,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-06 19:54:47,705 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:54:47,705 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:54:47,705 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:54:47,705 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:54:47,705 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 19:54:47,705 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:47,705 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:54:47,705 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:54:47,705 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration4_Loop [2021-12-06 19:54:47,705 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:54:47,705 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:54:47,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:54:47,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:54:47,747 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:54:47,747 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 19:54:47,747 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:47,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:47,748 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:54:47,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-06 19:54:47,749 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:54:47,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:54:47,757 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:54:47,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:54:47,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:54:47,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:54:47,759 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:54:47,759 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:54:47,761 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:54:47,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-12-06 19:54:47,779 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:47,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:47,780 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:54:47,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-06 19:54:47,782 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:54:47,789 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:54:47,789 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:54:47,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:54:47,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:54:47,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:54:47,790 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:54:47,790 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:54:47,791 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 19:54:47,793 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-06 19:54:47,794 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-06 19:54:47,794 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:47,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:47,794 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:54:47,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-06 19:54:47,795 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 19:54:47,795 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 19:54:47,796 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 19:54:47,796 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2021-12-06 19:54:47,814 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-12-06 19:54:47,814 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 19:54:47,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:47,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:54:47,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:54:47,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:47,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:54:47,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:54:47,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:47,856 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-12-06 19:54:47,856 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:47,862 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 33 states and 43 transitions. Complement of second has 4 states. [2021-12-06 19:54:47,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 19:54:47,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:47,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 31 transitions. [2021-12-06 19:54:47,863 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 10 letters. Loop has 3 letters. [2021-12-06 19:54:47,863 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:54:47,863 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 13 letters. Loop has 3 letters. [2021-12-06 19:54:47,864 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:54:47,864 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 10 letters. Loop has 6 letters. [2021-12-06 19:54:47,864 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:54:47,864 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 43 transitions. [2021-12-06 19:54:47,865 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 19:54:47,865 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 27 states and 35 transitions. [2021-12-06 19:54:47,865 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2021-12-06 19:54:47,865 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2021-12-06 19:54:47,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2021-12-06 19:54:47,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 19:54:47,866 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-12-06 19:54:47,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2021-12-06 19:54:47,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-12-06 19:54:47,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:47,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2021-12-06 19:54:47,868 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-12-06 19:54:47,868 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-12-06 19:54:47,868 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-06 19:54:47,868 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2021-12-06 19:54:47,868 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 19:54:47,869 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:54:47,869 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:54:47,869 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:54:47,869 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 19:54:47,869 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 [2021-12-06 19:54:47,869 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 [2021-12-06 19:54:47,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:47,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1012956325, now seen corresponding path program 1 times [2021-12-06 19:54:47,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:54:47,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548126850] [2021-12-06 19:54:47,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:47,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:54:47,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:54:47,878 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:54:47,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:54:47,889 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:54:47,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:47,890 INFO L85 PathProgramCache]: Analyzing trace with hash 173971, now seen corresponding path program 1 times [2021-12-06 19:54:47,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:54:47,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755687591] [2021-12-06 19:54:47,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:47,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:54:47,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:54:47,893 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:54:47,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:54:47,896 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:54:47,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:47,897 INFO L85 PathProgramCache]: Analyzing trace with hash 541800559, now seen corresponding path program 1 times [2021-12-06 19:54:47,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:54:47,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450478470] [2021-12-06 19:54:47,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:47,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:54:47,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:54:47,907 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:54:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:54:47,926 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:54:47,942 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:54:47,942 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:54:47,943 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:54:47,943 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:54:47,943 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 19:54:47,943 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:47,943 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:54:47,943 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:54:47,943 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration5_Loop [2021-12-06 19:54:47,943 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:54:47,943 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:54:47,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:54:47,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-12-06 19:54:47,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:54:47,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-06 19:54:47,978 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:54:47,978 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 19:54:47,978 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:47,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:47,979 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:54:47,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-06 19:54:47,980 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:54:47,980 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:54:48,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-06 19:54:48,007 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:48,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:48,008 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:54:48,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-06 19:54:48,009 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 19:54:48,009 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:54:48,048 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 19:54:48,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-12-06 19:54:48,050 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:54:48,050 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:54:48,051 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:54:48,051 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:54:48,051 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 19:54:48,051 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:48,051 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:54:48,051 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:54:48,051 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration5_Loop [2021-12-06 19:54:48,051 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:54:48,051 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:54:48,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:54:48,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:54:48,083 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:54:48,083 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 19:54:48,084 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:48,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:48,084 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:54:48,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-06 19:54:48,085 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 19:54:48,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:54:48,092 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:54:48,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:54:48,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:54:48,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:54:48,093 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:54:48,094 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:54:48,095 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 19:54:48,097 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-06 19:54:48,097 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-06 19:54:48,097 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:54:48,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:48,098 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:54:48,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-06 19:54:48,099 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 19:54:48,099 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 19:54:48,099 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 19:54:48,099 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2021-12-06 19:54:48,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-12-06 19:54:48,118 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 19:54:48,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:48,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:48,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:54:48,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:54:48,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:48,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:54:48,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:54:48,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:48,160 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-06 19:54:48,160 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:48,164 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 39 transitions. Complement of second has 4 states. [2021-12-06 19:54:48,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 19:54:48,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:48,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 28 transitions. [2021-12-06 19:54:48,165 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 10 letters. Loop has 3 letters. [2021-12-06 19:54:48,165 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:54:48,165 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 13 letters. Loop has 3 letters. [2021-12-06 19:54:48,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:54:48,166 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 10 letters. Loop has 6 letters. [2021-12-06 19:54:48,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:54:48,166 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2021-12-06 19:54:48,166 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 19:54:48,166 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2021-12-06 19:54:48,166 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-06 19:54:48,167 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-06 19:54:48,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-06 19:54:48,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 19:54:48,167 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 19:54:48,167 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 19:54:48,167 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 19:54:48,167 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-06 19:54:48,167 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-06 19:54:48,167 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 19:54:48,167 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-06 19:54:48,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 07:54:48 BoogieIcfgContainer [2021-12-06 19:54:48,172 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 19:54:48,172 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 19:54:48,172 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 19:54:48,172 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 19:54:48,173 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:54:45" (3/4) ... [2021-12-06 19:54:48,174 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 19:54:48,174 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 19:54:48,175 INFO L158 Benchmark]: Toolchain (without parser) took 3003.11ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 68.1MB in the beginning and 83.0MB in the end (delta: -14.9MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2021-12-06 19:54:48,175 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 84.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:54:48,176 INFO L158 Benchmark]: CACSL2BoogieTranslator took 206.54ms. Allocated memory is still 109.1MB. Free memory was 67.9MB in the beginning and 80.6MB in the end (delta: -12.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 19:54:48,176 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.75ms. Allocated memory is still 109.1MB. Free memory was 80.6MB in the beginning and 78.1MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 19:54:48,176 INFO L158 Benchmark]: Boogie Preprocessor took 31.90ms. Allocated memory is still 109.1MB. Free memory was 78.1MB in the beginning and 76.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:54:48,177 INFO L158 Benchmark]: RCFGBuilder took 346.02ms. Allocated memory is still 109.1MB. Free memory was 76.4MB in the beginning and 60.4MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-06 19:54:48,177 INFO L158 Benchmark]: BuchiAutomizer took 2379.25ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 60.4MB in the beginning and 83.0MB in the end (delta: -22.6MB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. [2021-12-06 19:54:48,177 INFO L158 Benchmark]: Witness Printer took 2.35ms. Allocated memory is still 132.1MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:54:48,179 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 84.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 206.54ms. Allocated memory is still 109.1MB. Free memory was 67.9MB in the beginning and 80.6MB in the end (delta: -12.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.75ms. Allocated memory is still 109.1MB. Free memory was 80.6MB in the beginning and 78.1MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.90ms. Allocated memory is still 109.1MB. Free memory was 78.1MB in the beginning and 76.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 346.02ms. Allocated memory is still 109.1MB. Free memory was 76.4MB in the beginning and 60.4MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 2379.25ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 60.4MB in the beginning and 83.0MB in the end (delta: -22.6MB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. * Witness Printer took 2.35ms. Allocated memory is still 132.1MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (1 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * e + 253 and consists of 4 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 34 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 30 states and ocurred in iteration 3. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 231 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 226 mSDsluCounter, 286 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 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: 36ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-06 19:54:48,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-12-06 19:54:48,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd9006d-7996-4c31-9c34-58c6e66f9610/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE