./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD --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 4d3eadbddfbf3067ca5315ec8b34c11d921d466ef06b9025e6a2983b1d142061 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:28:54,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:28:54,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:28:54,323 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:28:54,324 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:28:54,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:28:54,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:28:54,338 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:28:54,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:28:54,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:28:54,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:28:54,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:28:54,354 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:28:54,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:28:54,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:28:54,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:28:54,369 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:28:54,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:28:54,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:28:54,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:28:54,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:28:54,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:28:54,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:28:54,395 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:28:54,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:28:54,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:28:54,408 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:28:54,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:28:54,411 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:28:54,413 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:28:54,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:28:54,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:28:54,418 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:28:54,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:28:54,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:28:54,423 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:28:54,424 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:28:54,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:28:54,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:28:54,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:28:54,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:28:54,428 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:28:54,498 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:28:54,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:28:54,500 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:28:54,500 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:28:54,502 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:28:54,503 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:28:54,503 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:28:54,503 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:28:54,503 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:28:54,504 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:28:54,505 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:28:54,506 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:28:54,506 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:28:54,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:28:54,507 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:28:54,507 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:28:54,507 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:28:54,507 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:28:54,508 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:28:54,508 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:28:54,508 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:28:54,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:28:54,509 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:28:54,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:28:54,509 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:28:54,510 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:28:54,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:28:54,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:28:54,512 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:28:54,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:28:54,513 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:28:54,514 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:28:54,515 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:28:54,515 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_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d3eadbddfbf3067ca5315ec8b34c11d921d466ef06b9025e6a2983b1d142061 [2021-10-28 23:28:54,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:28:54,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:28:54,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:28:54,883 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:28:54,885 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:28:54,886 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c [2021-10-28 23:28:54,979 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/data/455f2bd95/f5e54a8aade94f1e8b285f88f2c11dc1/FLAGabbafcb20 [2021-10-28 23:28:55,680 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:28:55,681 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c [2021-10-28 23:28:55,691 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/data/455f2bd95/f5e54a8aade94f1e8b285f88f2c11dc1/FLAGabbafcb20 [2021-10-28 23:28:56,009 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/data/455f2bd95/f5e54a8aade94f1e8b285f88f2c11dc1 [2021-10-28 23:28:56,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:28:56,015 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:28:56,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:28:56,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:28:56,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:28:56,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:28:56" (1/1) ... [2021-10-28 23:28:56,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ff0fbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:56, skipping insertion in model container [2021-10-28 23:28:56,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:28:56" (1/1) ... [2021-10-28 23:28:56,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:28:56,078 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:28:56,281 WARN L228 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_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c[423,436] [2021-10-28 23:28:56,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:28:56,349 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:28:56,362 WARN L228 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_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c[423,436] [2021-10-28 23:28:56,399 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:28:56,416 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:28:56,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:56 WrapperNode [2021-10-28 23:28:56,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:28:56,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:28:56,419 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:28:56,419 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:28:56,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:56" (1/1) ... [2021-10-28 23:28:56,439 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:56" (1/1) ... [2021-10-28 23:28:56,473 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:28:56,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:28:56,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:28:56,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:28:56,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:56" (1/1) ... [2021-10-28 23:28:56,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:56" (1/1) ... [2021-10-28 23:28:56,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:56" (1/1) ... [2021-10-28 23:28:56,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:56" (1/1) ... [2021-10-28 23:28:56,497 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:56" (1/1) ... [2021-10-28 23:28:56,506 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:56" (1/1) ... [2021-10-28 23:28:56,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:56" (1/1) ... [2021-10-28 23:28:56,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:28:56,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:28:56,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:28:56,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:28:56,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:56" (1/1) ... [2021-10-28 23:28:56,534 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:28:56,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:56,584 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:28:56,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:28:56,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:28:56,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:28:56,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:28:56,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:28:57,294 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:28:57,298 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-10-28 23:28:57,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:28:57 BoogieIcfgContainer [2021-10-28 23:28:57,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:28:57,304 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:28:57,306 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:28:57,311 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:28:57,312 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:28:57,313 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:28:56" (1/3) ... [2021-10-28 23:28:57,315 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@216e44bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:28:57, skipping insertion in model container [2021-10-28 23:28:57,316 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:28:57,316 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:56" (2/3) ... [2021-10-28 23:28:57,317 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@216e44bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:28:57, skipping insertion in model container [2021-10-28 23:28:57,317 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:28:57,317 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:28:57" (3/3) ... [2021-10-28 23:28:57,319 INFO L389 chiAutomizerObserver]: Analyzing ICFG soft_float_3a.c.cil.c [2021-10-28 23:28:57,389 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:28:57,390 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:28:57,390 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:28:57,390 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:28:57,390 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:28:57,391 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:28:57,391 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:28:57,391 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:28:57,425 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 70 states, 69 states have (on average 1.7681159420289856) internal successors, (122), 69 states have internal predecessors, (122), 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) [2021-10-28 23:28:57,465 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2021-10-28 23:28:57,465 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:28:57,466 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:28:57,473 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 23:28:57,474 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:28:57,474 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:28:57,477 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 70 states, 69 states have (on average 1.7681159420289856) internal successors, (122), 69 states have internal predecessors, (122), 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) [2021-10-28 23:28:57,495 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2021-10-28 23:28:57,495 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:28:57,496 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:28:57,497 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 23:28:57,497 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:28:57,506 INFO L791 eck$LassoCheckResult]: Stem: 53#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(22);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 39#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 25#L21true assume !(0 == base2flt_~m % 4294967296); 16#L27true assume !(base2flt_~m % 4294967296 < 16777216); 33#L49-2true [2021-10-28 23:28:57,506 INFO L793 eck$LassoCheckResult]: Loop: 33#L49-2true assume !false; 40#L50true assume base2flt_~m % 4294967296 >= 33554432; 31#L51true assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 33#L49-2true [2021-10-28 23:28:57,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:57,522 INFO L85 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2021-10-28 23:28:57,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:28:57,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524755386] [2021-10-28 23:28:57,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:57,552 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:28:57,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:57,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:57,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:28:57,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524755386] [2021-10-28 23:28:57,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524755386] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:28:57,916 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:28:57,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:28:57,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432342352] [2021-10-28 23:28:57,926 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:28:57,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:57,930 INFO L85 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2021-10-28 23:28:57,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:28:57,931 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429264390] [2021-10-28 23:28:57,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:57,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:28:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:28:57,967 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:28:57,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:28:58,008 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:28:58,078 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:28:58,079 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:28:58,079 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:28:58,079 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:28:58,080 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:28:58,080 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:28:58,080 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:28:58,080 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:28:58,081 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration1_Loop [2021-10-28 23:28:58,081 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:28:58,081 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:28:58,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:28:58,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:28:58,233 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:28:58,234 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:28:58,237 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:28:58,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:58,243 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:28:58,249 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:28:58,250 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:28:58,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:28:58,328 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:28:58,328 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=-1} Honda state: {ULTIMATE.start_base2flt_~m=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:28:58,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:58,337 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:28:58,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:58,340 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:28:58,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:28:58,347 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:28:58,347 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:28:58,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:58,428 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:28:58,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:58,430 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:28:58,437 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:28:58,438 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:28:58,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:28:58,515 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:28:58,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:58,524 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:28:58,524 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:28:58,524 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:28:58,524 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:28:58,524 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:28:58,525 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:28:58,525 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:28:58,525 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:28:58,525 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration1_Loop [2021-10-28 23:28:58,525 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:28:58,525 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:28:58,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:28:58,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:28:58,656 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:28:58,661 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:28:58,663 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:28:58,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:58,667 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:28:58,680 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 [2021-10-28 23:28:58,692 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:28:58,692 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:28:58,693 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:28:58,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:28:58,693 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:28:58,699 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:28:58,700 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:28:58,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:28:58,719 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:28:58,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:58,766 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:28:58,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:58,769 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:28:58,776 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 [2021-10-28 23:28:58,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 23:28:58,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:28:58,784 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:28:58,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:28:58,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:28:58,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:28:58,786 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:28:58,786 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:28:58,803 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:28:58,807 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:28:58,807 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:28:58,809 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:28:58,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:58,811 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:28:58,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 23:28:58,826 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:28:58,826 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:28:58,826 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:28:58,827 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2021-10-28 23:28:58,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:58,865 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:28:58,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:58,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:28:58,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:28:58,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:58,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:28:58,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:28:58,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:58,986 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 [2021-10-28 23:28:58,989 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 70 states, 69 states have (on average 1.7681159420289856) internal successors, (122), 69 states have internal predecessors, (122), 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) [2021-10-28 23:28:59,076 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 70 states, 69 states have (on average 1.7681159420289856) internal successors, (122), 69 states have internal predecessors, (122), 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 201 states and 341 transitions. Complement of second has 6 states. [2021-10-28 23:28:59,077 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 [2021-10-28 23:28:59,079 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) [2021-10-28 23:28:59,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 226 transitions. [2021-10-28 23:28:59,084 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 226 transitions. Stem has 4 letters. Loop has 3 letters. [2021-10-28 23:28:59,085 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:28:59,086 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 226 transitions. Stem has 7 letters. Loop has 3 letters. [2021-10-28 23:28:59,086 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:28:59,086 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 226 transitions. Stem has 4 letters. Loop has 6 letters. [2021-10-28 23:28:59,087 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:28:59,088 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 201 states and 341 transitions. [2021-10-28 23:28:59,098 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 39 [2021-10-28 23:28:59,105 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 201 states to 79 states and 120 transitions. [2021-10-28 23:28:59,106 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 75 [2021-10-28 23:28:59,108 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 76 [2021-10-28 23:28:59,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 79 states and 120 transitions. [2021-10-28 23:28:59,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:28:59,109 INFO L681 BuchiCegarLoop]: Abstraction has 79 states and 120 transitions. [2021-10-28 23:28:59,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states and 120 transitions. [2021-10-28 23:28:59,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 68. [2021-10-28 23:28:59,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 68 states have (on average 1.588235294117647) internal successors, (108), 67 states have internal predecessors, (108), 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) [2021-10-28 23:28:59,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 108 transitions. [2021-10-28 23:28:59,149 INFO L704 BuchiCegarLoop]: Abstraction has 68 states and 108 transitions. [2021-10-28 23:28:59,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:28:59,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:28:59,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:28:59,155 INFO L87 Difference]: Start difference. First operand 68 states and 108 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) [2021-10-28 23:28:59,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:28:59,221 INFO L93 Difference]: Finished difference Result 35 states and 48 transitions. [2021-10-28 23:28:59,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:28:59,222 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 48 transitions. [2021-10-28 23:28:59,223 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2021-10-28 23:28:59,224 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 35 states and 48 transitions. [2021-10-28 23:28:59,224 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2021-10-28 23:28:59,225 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2021-10-28 23:28:59,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 48 transitions. [2021-10-28 23:28:59,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:28:59,226 INFO L681 BuchiCegarLoop]: Abstraction has 35 states and 48 transitions. [2021-10-28 23:28:59,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 48 transitions. [2021-10-28 23:28:59,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-28 23:28:59,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 34 states have internal predecessors, (48), 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) [2021-10-28 23:28:59,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2021-10-28 23:28:59,230 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 48 transitions. [2021-10-28 23:28:59,230 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 48 transitions. [2021-10-28 23:28:59,230 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:28:59,230 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 48 transitions. [2021-10-28 23:28:59,231 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2021-10-28 23:28:59,232 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:28:59,232 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:28:59,232 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:28:59,232 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:28:59,233 INFO L791 eck$LassoCheckResult]: Stem: 447#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(22);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 432#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 433#L21 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 426#L71 base2flt_#res := base2flt_~__retres4~0; 427#L72 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 440#L21-1 assume !(0 == base2flt_~m % 4294967296); 441#L27-1 assume !(base2flt_~m % 4294967296 < 16777216); 428#L49-5 [2021-10-28 23:28:59,233 INFO L793 eck$LassoCheckResult]: Loop: 428#L49-5 assume !false; 429#L50-1 assume base2flt_~m % 4294967296 >= 33554432; 430#L51-1 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 428#L49-5 [2021-10-28 23:28:59,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:59,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1806627809, now seen corresponding path program 1 times [2021-10-28 23:28:59,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:28:59,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566753206] [2021-10-28 23:28:59,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:59,235 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:28:59,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:59,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:59,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:28:59,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566753206] [2021-10-28 23:28:59,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566753206] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:28:59,322 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:28:59,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:28:59,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684416130] [2021-10-28 23:28:59,327 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:28:59,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:59,328 INFO L85 PathProgramCache]: Analyzing trace with hash 137171, now seen corresponding path program 1 times [2021-10-28 23:28:59,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:28:59,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049071386] [2021-10-28 23:28:59,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:59,329 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:28:59,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:28:59,335 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:28:59,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:28:59,344 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:28:59,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:59,411 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:28:59,411 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:28:59,411 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:28:59,412 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:28:59,412 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:28:59,412 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:28:59,412 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:28:59,412 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:28:59,412 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration2_Loop [2021-10-28 23:28:59,412 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:28:59,413 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:28:59,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:28:59,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:28:59,522 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:28:59,523 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:28:59,523 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:28:59,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:59,531 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:28:59,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 23:28:59,535 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:28:59,535 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:28:59,607 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:28:59,608 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=-1} Honda state: {ULTIMATE.start_base2flt_~m=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:28:59,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:59,616 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:28:59,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:59,617 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:28:59,623 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:28:59,624 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:28:59,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 23:28:59,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:59,693 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:28:59,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:59,695 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:28:59,702 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:28:59,702 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:28:59,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 23:28:59,762 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:28:59,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:59,770 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:28:59,770 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:28:59,770 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:28:59,771 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:28:59,771 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:28:59,771 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:28:59,771 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:28:59,771 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:28:59,771 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration2_Loop [2021-10-28 23:28:59,771 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:28:59,771 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:28:59,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:28:59,781 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:28:59,879 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:28:59,879 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:28:59,880 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:28:59,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:59,883 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:28:59,894 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 [2021-10-28 23:28:59,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:28:59,905 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:28:59,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:28:59,906 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:28:59,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:28:59,909 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:28:59,909 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:28:59,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 23:28:59,927 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:28:59,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:59,967 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:28:59,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:59,971 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:28:59,979 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 [2021-10-28 23:28:59,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:28:59,991 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:28:59,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:28:59,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:28:59,992 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:28:59,994 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:28:59,994 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:28:59,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 23:29:00,007 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:29:00,010 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:29:00,010 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:29:00,011 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:00,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:00,015 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:00,021 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:29:00,022 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:29:00,022 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:29:00,022 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2021-10-28 23:29:00,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 23:29:00,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:00,051 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:29:00,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:00,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:29:00,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:00,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:29:00,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:00,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:00,169 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 [2021-10-28 23:29:00,169 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 48 transitions. cyclomatic complexity: 19 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) [2021-10-28 23:29:00,197 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 48 transitions. cyclomatic complexity: 19. 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 63 states and 85 transitions. Complement of second has 5 states. [2021-10-28 23:29:00,202 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 [2021-10-28 23:29:00,202 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) [2021-10-28 23:29:00,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 50 transitions. [2021-10-28 23:29:00,203 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 50 transitions. Stem has 7 letters. Loop has 3 letters. [2021-10-28 23:29:00,204 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:00,204 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 50 transitions. Stem has 10 letters. Loop has 3 letters. [2021-10-28 23:29:00,205 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:00,205 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 50 transitions. Stem has 7 letters. Loop has 6 letters. [2021-10-28 23:29:00,205 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:00,206 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 85 transitions. [2021-10-28 23:29:00,207 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2021-10-28 23:29:00,209 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 60 states and 81 transitions. [2021-10-28 23:29:00,210 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2021-10-28 23:29:00,210 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2021-10-28 23:29:00,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 81 transitions. [2021-10-28 23:29:00,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:29:00,211 INFO L681 BuchiCegarLoop]: Abstraction has 60 states and 81 transitions. [2021-10-28 23:29:00,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 81 transitions. [2021-10-28 23:29:00,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 38. [2021-10-28 23:29:00,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 1.368421052631579) internal successors, (52), 37 states have internal predecessors, (52), 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) [2021-10-28 23:29:00,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 52 transitions. [2021-10-28 23:29:00,225 INFO L704 BuchiCegarLoop]: Abstraction has 38 states and 52 transitions. [2021-10-28 23:29:00,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:29:00,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:29:00,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:29:00,227 INFO L87 Difference]: Start difference. First operand 38 states and 52 transitions. Second operand has 3 states, 2 states have (on average 3.5) 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) [2021-10-28 23:29:00,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:29:00,287 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2021-10-28 23:29:00,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:29:00,289 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 46 transitions. [2021-10-28 23:29:00,292 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2021-10-28 23:29:00,296 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 36 states and 46 transitions. [2021-10-28 23:29:00,296 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-10-28 23:29:00,297 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-28 23:29:00,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 46 transitions. [2021-10-28 23:29:00,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:29:00,300 INFO L681 BuchiCegarLoop]: Abstraction has 36 states and 46 transitions. [2021-10-28 23:29:00,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 46 transitions. [2021-10-28 23:29:00,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2021-10-28 23:29:00,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.28125) internal successors, (41), 31 states have internal predecessors, (41), 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) [2021-10-28 23:29:00,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2021-10-28 23:29:00,310 INFO L704 BuchiCegarLoop]: Abstraction has 32 states and 41 transitions. [2021-10-28 23:29:00,310 INFO L587 BuchiCegarLoop]: Abstraction has 32 states and 41 transitions. [2021-10-28 23:29:00,310 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:29:00,311 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 41 transitions. [2021-10-28 23:29:00,312 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2021-10-28 23:29:00,312 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:29:00,312 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:29:00,313 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:29:00,313 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:29:00,313 INFO L791 eck$LassoCheckResult]: Stem: 663#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(22);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 649#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 650#L21 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 647#L71 base2flt_#res := base2flt_~__retres4~0; 648#L72 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 656#L21-1 assume !(0 == base2flt_~m % 4294967296); 657#L27-1 assume base2flt_~m % 4294967296 < 16777216; 660#L39-3 [2021-10-28 23:29:00,313 INFO L793 eck$LassoCheckResult]: Loop: 660#L39-3 assume !false; 661#L30-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 668#L39-2 assume base2flt_~m % 4294967296 < 16777216; 660#L39-3 [2021-10-28 23:29:00,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:00,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1806627783, now seen corresponding path program 1 times [2021-10-28 23:29:00,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:00,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498128905] [2021-10-28 23:29:00,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:00,316 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:00,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:00,352 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:29:00,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:00,401 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:29:00,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:00,402 INFO L85 PathProgramCache]: Analyzing trace with hash 111412, now seen corresponding path program 1 times [2021-10-28 23:29:00,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:00,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615510197] [2021-10-28 23:29:00,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:00,407 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:00,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:00,418 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:29:00,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:00,423 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:29:00,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:00,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1013178798, now seen corresponding path program 1 times [2021-10-28 23:29:00,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:00,435 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236325527] [2021-10-28 23:29:00,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:00,438 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:00,464 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:29:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:00,497 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:29:00,543 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:29:00,543 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:29:00,543 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:29:00,544 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:29:00,544 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:29:00,544 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:00,544 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:29:00,544 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:29:00,544 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration3_Loop [2021-10-28 23:29:00,545 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:29:00,545 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:29:00,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:00,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:00,628 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:29:00,629 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:29:00,629 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:00,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:00,630 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:00,634 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:29:00,634 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:29:00,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 23:29:00,708 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:29:00,708 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=0} Honda state: {ULTIMATE.start_base2flt_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:29:00,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:00,717 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:00,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:00,718 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:00,725 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:29:00,725 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:29:00,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 23:29:00,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:00,788 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:00,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:00,790 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:00,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 23:29:00,793 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:29:00,793 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:29:00,833 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:29:00,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-10-28 23:29:00,839 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:29:00,839 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:29:00,839 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:29:00,839 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:29:00,839 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:29:00,839 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:00,840 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:29:00,840 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:29:00,840 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration3_Loop [2021-10-28 23:29:00,840 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:29:00,840 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:29:00,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:00,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:00,928 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:29:00,929 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:29:00,929 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:00,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:00,931 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:00,935 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 [2021-10-28 23:29:00,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:29:00,947 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:29:00,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:29:00,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:29:00,947 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:29:00,950 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:29:00,950 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:29:00,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 23:29:00,963 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:29:01,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:01,005 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:01,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:01,011 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:01,019 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 [2021-10-28 23:29:01,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 23:29:01,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:29:01,031 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:29:01,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:29:01,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:29:01,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:29:01,033 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:29:01,033 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:29:01,047 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:29:01,060 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:29:01,060 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:29:01,060 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:01,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:01,062 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:01,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 23:29:01,064 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:29:01,064 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:29:01,064 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:29:01,065 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2021-10-28 23:29:01,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:01,093 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:29:01,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:01,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:01,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:29:01,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:01,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:01,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:29:01,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:01,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:01,256 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 [2021-10-28 23:29:01,257 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 41 transitions. cyclomatic complexity: 14 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) [2021-10-28 23:29:01,272 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 41 transitions. cyclomatic complexity: 14. 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 39 states and 50 transitions. Complement of second has 5 states. [2021-10-28 23:29:01,273 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 [2021-10-28 23:29:01,273 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) [2021-10-28 23:29:01,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2021-10-28 23:29:01,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2021-10-28 23:29:01,274 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:01,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 10 letters. Loop has 3 letters. [2021-10-28 23:29:01,275 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:01,275 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 7 letters. Loop has 6 letters. [2021-10-28 23:29:01,276 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:01,277 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 50 transitions. [2021-10-28 23:29:01,279 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-10-28 23:29:01,279 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 36 states and 46 transitions. [2021-10-28 23:29:01,280 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-10-28 23:29:01,281 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2021-10-28 23:29:01,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 46 transitions. [2021-10-28 23:29:01,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:29:01,281 INFO L681 BuchiCegarLoop]: Abstraction has 36 states and 46 transitions. [2021-10-28 23:29:01,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 46 transitions. [2021-10-28 23:29:01,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2021-10-28 23:29:01,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 34 states have internal predecessors, (45), 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) [2021-10-28 23:29:01,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2021-10-28 23:29:01,293 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 45 transitions. [2021-10-28 23:29:01,293 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 45 transitions. [2021-10-28 23:29:01,293 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 23:29:01,293 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 45 transitions. [2021-10-28 23:29:01,293 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-10-28 23:29:01,294 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:29:01,294 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:29:01,295 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:29:01,295 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:29:01,296 INFO L791 eck$LassoCheckResult]: Stem: 787#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(22);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 771#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 772#L21 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 769#L71 base2flt_#res := base2flt_~__retres4~0; 770#L72 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 778#L21-1 assume !(0 == base2flt_~m % 4294967296); 779#L27-1 assume base2flt_~m % 4294967296 < 16777216; 795#L39-3 assume !false; 783#L30-1 assume base2flt_~e <= -128;base2flt_~__retres4~0 := 0; 791#L71-1 base2flt_#res := base2flt_~__retres4~0; 761#L72-1 main_#t~ret12 := base2flt_#res;main_~one~0 := main_#t~ret12;havoc main_#t~ret12;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 762#L21-2 assume !(0 == base2flt_~m % 4294967296); 775#L27-2 assume !(base2flt_~m % 4294967296 < 16777216); 776#L49-8 [2021-10-28 23:29:01,296 INFO L793 eck$LassoCheckResult]: Loop: 776#L49-8 assume !false; 766#L50-2 assume base2flt_~m % 4294967296 >= 33554432; 768#L51-2 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 776#L49-8 [2021-10-28 23:29:01,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:01,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1421262134, now seen corresponding path program 1 times [2021-10-28 23:29:01,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:01,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412646185] [2021-10-28 23:29:01,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:01,298 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:01,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:01,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:29:01,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412646185] [2021-10-28 23:29:01,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412646185] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:29:01,372 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:29:01,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:29:01,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94786609] [2021-10-28 23:29:01,373 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:29:01,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:01,375 INFO L85 PathProgramCache]: Analyzing trace with hash 199730, now seen corresponding path program 1 times [2021-10-28 23:29:01,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:01,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343465518] [2021-10-28 23:29:01,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:01,376 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:01,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:01,390 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:29:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:01,405 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:29:01,454 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:29:01,454 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:29:01,454 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:29:01,455 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:29:01,455 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:29:01,455 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:01,455 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:29:01,455 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:29:01,455 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration4_Loop [2021-10-28 23:29:01,456 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:29:01,456 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:29:01,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:01,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:01,595 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:29:01,595 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:29:01,595 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:01,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:01,607 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:01,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:01,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 23:29:01,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:01,655 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:29:01,655 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:29:01,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:01,717 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:01,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:01,718 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:01,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 23:29:01,723 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:29:01,723 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:29:01,784 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:29:01,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:01,787 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:29:01,787 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:29:01,788 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:29:01,788 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:29:01,788 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:29:01,788 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:01,788 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:29:01,788 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:29:01,788 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration4_Loop [2021-10-28 23:29:01,788 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:29:01,788 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:29:01,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:01,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:01,909 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:29:01,909 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:29:01,909 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:01,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:01,910 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:01,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 23:29:01,918 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 [2021-10-28 23:29:01,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:29:01,926 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:29:01,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:29:01,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:29:01,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:29:01,928 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:29:01,928 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:29:01,931 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:29:01,933 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:29:01,933 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:29:01,933 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:01,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:01,935 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:01,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 23:29:01,939 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:29:01,939 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:29:01,939 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:29:01,939 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2021-10-28 23:29:01,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:01,968 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:29:01,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:02,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:02,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:29:02,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:02,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:02,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:29:02,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:02,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:02,104 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 [2021-10-28 23:29:02,105 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 45 transitions. cyclomatic complexity: 15 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2021-10-28 23:29:02,117 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 45 transitions. cyclomatic complexity: 15. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 52 states and 65 transitions. Complement of second has 5 states. [2021-10-28 23:29:02,118 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 [2021-10-28 23:29:02,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2021-10-28 23:29:02,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2021-10-28 23:29:02,125 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 13 letters. Loop has 3 letters. [2021-10-28 23:29:02,125 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:02,125 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 16 letters. Loop has 3 letters. [2021-10-28 23:29:02,125 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:02,126 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 13 letters. Loop has 6 letters. [2021-10-28 23:29:02,126 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:02,126 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 65 transitions. [2021-10-28 23:29:02,127 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2021-10-28 23:29:02,128 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 49 states and 61 transitions. [2021-10-28 23:29:02,128 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2021-10-28 23:29:02,128 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2021-10-28 23:29:02,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 61 transitions. [2021-10-28 23:29:02,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:29:02,128 INFO L681 BuchiCegarLoop]: Abstraction has 49 states and 61 transitions. [2021-10-28 23:29:02,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 61 transitions. [2021-10-28 23:29:02,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 38. [2021-10-28 23:29:02,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 37 states have internal predecessors, (49), 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) [2021-10-28 23:29:02,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 49 transitions. [2021-10-28 23:29:02,132 INFO L704 BuchiCegarLoop]: Abstraction has 38 states and 49 transitions. [2021-10-28 23:29:02,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:29:02,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:29:02,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:29:02,133 INFO L87 Difference]: Start difference. First operand 38 states and 49 transitions. 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) [2021-10-28 23:29:02,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:29:02,159 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2021-10-28 23:29:02,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:29:02,159 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 50 transitions. [2021-10-28 23:29:02,160 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-28 23:29:02,161 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 39 states and 49 transitions. [2021-10-28 23:29:02,161 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2021-10-28 23:29:02,161 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2021-10-28 23:29:02,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 49 transitions. [2021-10-28 23:29:02,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:29:02,162 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 49 transitions. [2021-10-28 23:29:02,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 49 transitions. [2021-10-28 23:29:02,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2021-10-28 23:29:02,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 1.263157894736842) internal successors, (48), 37 states have internal predecessors, (48), 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) [2021-10-28 23:29:02,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 48 transitions. [2021-10-28 23:29:02,165 INFO L704 BuchiCegarLoop]: Abstraction has 38 states and 48 transitions. [2021-10-28 23:29:02,165 INFO L587 BuchiCegarLoop]: Abstraction has 38 states and 48 transitions. [2021-10-28 23:29:02,165 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 23:29:02,165 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 48 transitions. [2021-10-28 23:29:02,166 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-28 23:29:02,166 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:29:02,166 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:29:02,167 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:29:02,167 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:29:02,167 INFO L791 eck$LassoCheckResult]: Stem: 1021#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(22);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 1007#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1008#L21 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 1003#L71 base2flt_#res := base2flt_~__retres4~0; 1004#L72 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1014#L21-1 assume !(0 == base2flt_~m % 4294967296); 1015#L27-1 assume base2flt_~m % 4294967296 < 16777216; 1017#L39-3 assume !false; 1018#L30-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1027#L39-2 assume !(base2flt_~m % 4294967296 < 16777216); 1024#L65-1 base2flt_~m := ~bitwiseAnd(base2flt_~m, ~bitwiseComplement(16777216));base2flt_~res~0 := ~bitwiseOr(base2flt_~m, 16777216 * (128 + base2flt_~e));base2flt_~__retres4~0 := base2flt_~res~0; 1025#L71-1 base2flt_#res := base2flt_~__retres4~0; 993#L72-1 main_#t~ret12 := base2flt_#res;main_~one~0 := main_#t~ret12;havoc main_#t~ret12;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 994#L21-2 assume !(0 == base2flt_~m % 4294967296); 1009#L27-2 assume base2flt_~m % 4294967296 < 16777216; 1011#L39-5 [2021-10-28 23:29:02,168 INFO L793 eck$LassoCheckResult]: Loop: 1011#L39-5 assume !false; 995#L30-2 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 997#L39-4 assume base2flt_~m % 4294967296 < 16777216; 1011#L39-5 [2021-10-28 23:29:02,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:02,168 INFO L85 PathProgramCache]: Analyzing trace with hash 793003697, now seen corresponding path program 1 times [2021-10-28 23:29:02,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:02,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998104825] [2021-10-28 23:29:02,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:02,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:02,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:02,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:29:02,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998104825] [2021-10-28 23:29:02,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998104825] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:29:02,241 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:29:02,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:29:02,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025161373] [2021-10-28 23:29:02,242 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:29:02,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:02,242 INFO L85 PathProgramCache]: Analyzing trace with hash 173971, now seen corresponding path program 1 times [2021-10-28 23:29:02,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:02,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837042211] [2021-10-28 23:29:02,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:02,243 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:02,252 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:29:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:02,256 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:29:02,289 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:29:02,289 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:29:02,289 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:29:02,289 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:29:02,290 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:29:02,290 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:02,290 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:29:02,290 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:29:02,290 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration5_Loop [2021-10-28 23:29:02,290 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:29:02,290 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:29:02,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:02,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:02,346 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:29:02,346 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:29:02,347 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:02,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:02,348 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:02,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 23:29:02,350 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:29:02,350 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:29:02,390 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:29:02,390 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=0} Honda state: {ULTIMATE.start_base2flt_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:29:02,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-10-28 23:29:02,393 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:02,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:02,394 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:02,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 23:29:02,396 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:29:02,396 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:29:02,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:02,432 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:02,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:02,433 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:02,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 23:29:02,434 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:29:02,435 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:29:02,475 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:29:02,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:02,478 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:29:02,478 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:29:02,478 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:29:02,478 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:29:02,478 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:29:02,478 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:02,478 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:29:02,478 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:29:02,478 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration5_Loop [2021-10-28 23:29:02,479 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:29:02,479 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:29:02,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:02,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:02,564 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:29:02,564 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:29:02,565 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:02,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:02,566 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:02,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 23:29:02,574 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 [2021-10-28 23:29:02,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:29:02,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:29:02,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:29:02,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:29:02,585 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:29:02,586 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:29:02,586 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:29:02,590 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:29:02,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:02,615 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:02,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:02,616 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:02,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 23:29:02,619 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 [2021-10-28 23:29:02,628 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:29:02,628 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:29:02,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:29:02,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:29:02,629 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:29:02,630 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:29:02,630 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:29:02,643 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:29:02,645 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:29:02,645 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:29:02,646 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:02,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:02,647 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:02,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 23:29:02,653 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:29:02,655 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:29:02,655 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:29:02,655 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2021-10-28 23:29:02,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:02,685 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:29:02,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:02,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:29:02,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:02,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:29:02,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:02,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:02,829 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 [2021-10-28 23:29:02,830 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 48 transitions. cyclomatic complexity: 15 Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2021-10-28 23:29:02,851 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 48 transitions. cyclomatic complexity: 15. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 56 states and 69 transitions. Complement of second has 5 states. [2021-10-28 23:29:02,851 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 [2021-10-28 23:29:02,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2021-10-28 23:29:02,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2021-10-28 23:29:02,852 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 15 letters. Loop has 3 letters. [2021-10-28 23:29:02,853 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:02,853 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 18 letters. Loop has 3 letters. [2021-10-28 23:29:02,854 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:02,854 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 15 letters. Loop has 6 letters. [2021-10-28 23:29:02,855 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:02,855 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 69 transitions. [2021-10-28 23:29:02,856 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-10-28 23:29:02,858 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 53 states and 65 transitions. [2021-10-28 23:29:02,858 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2021-10-28 23:29:02,859 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2021-10-28 23:29:02,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 65 transitions. [2021-10-28 23:29:02,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:29:02,859 INFO L681 BuchiCegarLoop]: Abstraction has 53 states and 65 transitions. [2021-10-28 23:29:02,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 65 transitions. [2021-10-28 23:29:02,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 41. [2021-10-28 23:29:02,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 40 states have internal predecessors, (52), 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) [2021-10-28 23:29:02,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2021-10-28 23:29:02,866 INFO L704 BuchiCegarLoop]: Abstraction has 41 states and 52 transitions. [2021-10-28 23:29:02,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:29:02,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:29:02,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:29:02,870 INFO L87 Difference]: Start difference. First operand 41 states and 52 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2021-10-28 23:29:02,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:29:02,940 INFO L93 Difference]: Finished difference Result 49 states and 61 transitions. [2021-10-28 23:29:02,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:29:02,940 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 61 transitions. [2021-10-28 23:29:02,941 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-28 23:29:02,942 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 49 states and 61 transitions. [2021-10-28 23:29:02,942 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-10-28 23:29:02,942 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-28 23:29:02,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 61 transitions. [2021-10-28 23:29:02,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:29:02,942 INFO L681 BuchiCegarLoop]: Abstraction has 49 states and 61 transitions. [2021-10-28 23:29:02,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 61 transitions. [2021-10-28 23:29:02,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2021-10-28 23:29:02,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 42 states have internal predecessors, (55), 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) [2021-10-28 23:29:02,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 55 transitions. [2021-10-28 23:29:02,945 INFO L704 BuchiCegarLoop]: Abstraction has 43 states and 55 transitions. [2021-10-28 23:29:02,945 INFO L587 BuchiCegarLoop]: Abstraction has 43 states and 55 transitions. [2021-10-28 23:29:02,945 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 23:29:02,945 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 55 transitions. [2021-10-28 23:29:02,946 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-28 23:29:02,946 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:29:02,946 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:29:02,947 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:29:02,947 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:29:02,947 INFO L791 eck$LassoCheckResult]: Stem: 1284#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(22);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 1265#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1266#L21 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 1263#L71 base2flt_#res := base2flt_~__retres4~0; 1264#L72 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1274#L21-1 assume !(0 == base2flt_~m % 4294967296); 1275#L27-1 assume base2flt_~m % 4294967296 < 16777216; 1293#L39-3 assume !false; 1289#L30-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1290#L39-2 assume base2flt_~m % 4294967296 < 16777216; 1279#L39-3 assume !false; 1280#L30-1 assume base2flt_~e <= -128;base2flt_~__retres4~0 := 0; 1288#L71-1 base2flt_#res := base2flt_~__retres4~0; 1252#L72-1 main_#t~ret12 := base2flt_#res;main_~one~0 := main_#t~ret12;havoc main_#t~ret12;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1253#L21-2 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 1255#L71-2 base2flt_#res := base2flt_~__retres4~0; 1267#L72-2 main_#t~ret13 := base2flt_#res;main_~a~0 := main_#t~ret13;havoc main_#t~ret13;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1268#L21-3 assume !(0 == base2flt_~m % 4294967296); 1283#L27-3 assume !(base2flt_~m % 4294967296 < 16777216); 1286#L49-11 [2021-10-28 23:29:02,947 INFO L793 eck$LassoCheckResult]: Loop: 1286#L49-11 assume !false; 1291#L50-3 assume base2flt_~m % 4294967296 >= 33554432; 1285#L51-3 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 1286#L49-11 [2021-10-28 23:29:02,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:02,948 INFO L85 PathProgramCache]: Analyzing trace with hash -399436914, now seen corresponding path program 1 times [2021-10-28 23:29:02,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:02,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391965114] [2021-10-28 23:29:02,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:02,948 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:02,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:02,994 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:02,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:29:02,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391965114] [2021-10-28 23:29:02,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391965114] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:29:02,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838423824] [2021-10-28 23:29:02,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:02,996 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:29:02,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:03,003 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:29:03,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-10-28 23:29:03,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:03,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:29:03,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:03,153 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:03,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838423824] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:29:03,153 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:29:03,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-28 23:29:03,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719765863] [2021-10-28 23:29:03,155 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:29:03,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:03,156 INFO L85 PathProgramCache]: Analyzing trace with hash 262289, now seen corresponding path program 1 times [2021-10-28 23:29:03,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:03,156 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600903436] [2021-10-28 23:29:03,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:03,156 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:03,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:03,171 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:29:03,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:03,189 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:29:03,251 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:29:03,251 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:29:03,251 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:29:03,251 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:29:03,251 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:29:03,252 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:03,252 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:29:03,252 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:29:03,252 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration6_Loop [2021-10-28 23:29:03,252 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:29:03,252 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:29:03,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:03,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:03,341 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:29:03,342 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:29:03,342 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:03,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:03,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:03,355 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:03,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 23:29:03,376 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:29:03,376 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:29:03,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:03,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-10-28 23:29:03,422 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:03,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:03,423 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:03,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 23:29:03,425 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:29:03,425 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:29:03,480 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:29:03,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-10-28 23:29:03,483 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:29:03,483 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:29:03,483 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:29:03,483 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:29:03,484 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:29:03,484 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:03,484 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:29:03,484 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:29:03,484 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration6_Loop [2021-10-28 23:29:03,484 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:29:03,484 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:29:03,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:03,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:03,588 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:29:03,588 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:29:03,589 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:03,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:03,592 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:03,604 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 [2021-10-28 23:29:03,614 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:29:03,615 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:29:03,615 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:29:03,615 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:29:03,615 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:29:03,616 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:29:03,616 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:29:03,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 23:29:03,631 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:29:03,633 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:29:03,634 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:29:03,634 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:03,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:03,635 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:03,638 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:29:03,638 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:29:03,638 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:29:03,638 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2021-10-28 23:29:03,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 23:29:03,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-10-28 23:29:03,671 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:29:03,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:03,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:03,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:29:03,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:03,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:29:03,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:03,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:03,826 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 [2021-10-28 23:29:03,826 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 55 transitions. cyclomatic complexity: 17 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-10-28 23:29:03,838 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 55 transitions. cyclomatic complexity: 17. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 46 states and 59 transitions. Complement of second has 4 states. [2021-10-28 23:29:03,839 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 [2021-10-28 23:29:03,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-10-28 23:29:03,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 41 transitions. [2021-10-28 23:29:03,840 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 41 transitions. Stem has 19 letters. Loop has 3 letters. [2021-10-28 23:29:03,840 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:03,840 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 41 transitions. Stem has 22 letters. Loop has 3 letters. [2021-10-28 23:29:03,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:03,841 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 41 transitions. Stem has 19 letters. Loop has 6 letters. [2021-10-28 23:29:03,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:03,841 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 59 transitions. [2021-10-28 23:29:03,842 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:29:03,843 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 40 states and 51 transitions. [2021-10-28 23:29:03,843 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-10-28 23:29:03,844 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-10-28 23:29:03,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 51 transitions. [2021-10-28 23:29:03,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:29:03,844 INFO L681 BuchiCegarLoop]: Abstraction has 40 states and 51 transitions. [2021-10-28 23:29:03,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 51 transitions. [2021-10-28 23:29:03,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-10-28 23:29:03,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.275) internal successors, (51), 39 states have internal predecessors, (51), 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) [2021-10-28 23:29:03,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2021-10-28 23:29:03,847 INFO L704 BuchiCegarLoop]: Abstraction has 40 states and 51 transitions. [2021-10-28 23:29:03,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:29:03,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:29:03,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:29:03,852 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2021-10-28 23:29:03,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:29:03,882 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2021-10-28 23:29:03,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:29:03,883 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 56 transitions. [2021-10-28 23:29:03,884 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:29:03,884 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 44 states and 54 transitions. [2021-10-28 23:29:03,885 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2021-10-28 23:29:03,885 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2021-10-28 23:29:03,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 54 transitions. [2021-10-28 23:29:03,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:29:03,888 INFO L681 BuchiCegarLoop]: Abstraction has 44 states and 54 transitions. [2021-10-28 23:29:03,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states and 54 transitions. [2021-10-28 23:29:03,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2021-10-28 23:29:03,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.25) internal successors, (50), 39 states have internal predecessors, (50), 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) [2021-10-28 23:29:03,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2021-10-28 23:29:03,894 INFO L704 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2021-10-28 23:29:03,894 INFO L587 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2021-10-28 23:29:03,894 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 23:29:03,894 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 50 transitions. [2021-10-28 23:29:03,895 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:29:03,895 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:29:03,896 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:29:03,897 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:29:03,897 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:29:03,898 INFO L791 eck$LassoCheckResult]: Stem: 1599#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(22);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 1582#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1583#L21 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 1578#L71 base2flt_#res := base2flt_~__retres4~0; 1579#L72 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1591#L21-1 assume !(0 == base2flt_~m % 4294967296); 1592#L27-1 assume base2flt_~m % 4294967296 < 16777216; 1594#L39-3 assume !false; 1595#L30-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1603#L39-2 assume base2flt_~m % 4294967296 < 16777216; 1596#L39-3 assume !false; 1597#L30-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1606#L39-2 assume !(base2flt_~m % 4294967296 < 16777216); 1600#L65-1 base2flt_~m := ~bitwiseAnd(base2flt_~m, ~bitwiseComplement(16777216));base2flt_~res~0 := ~bitwiseOr(base2flt_~m, 16777216 * (128 + base2flt_~e));base2flt_~__retres4~0 := base2flt_~res~0; 1601#L71-1 base2flt_#res := base2flt_~__retres4~0; 1567#L72-1 main_#t~ret12 := base2flt_#res;main_~one~0 := main_#t~ret12;havoc main_#t~ret12;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1568#L21-2 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 1570#L71-2 base2flt_#res := base2flt_~__retres4~0; 1580#L72-2 main_#t~ret13 := base2flt_#res;main_~a~0 := main_#t~ret13;havoc main_#t~ret13;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1581#L21-3 assume !(0 == base2flt_~m % 4294967296); 1598#L27-3 assume base2flt_~m % 4294967296 < 16777216; 1604#L39-7 [2021-10-28 23:29:03,898 INFO L793 eck$LassoCheckResult]: Loop: 1604#L39-7 assume !false; 1589#L30-3 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1590#L39-6 assume base2flt_~m % 4294967296 < 16777216; 1604#L39-7 [2021-10-28 23:29:03,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:03,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1485728147, now seen corresponding path program 1 times [2021-10-28 23:29:03,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:03,899 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142887703] [2021-10-28 23:29:03,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:03,899 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:03,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:04,004 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:04,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:29:04,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142887703] [2021-10-28 23:29:04,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142887703] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:29:04,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610355364] [2021-10-28 23:29:04,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:04,005 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:29:04,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:04,011 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:29:04,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-10-28 23:29:04,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:04,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:29:04,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:04,279 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:04,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610355364] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:29:04,280 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:29:04,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-28 23:29:04,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898577263] [2021-10-28 23:29:04,280 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:29:04,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:04,281 INFO L85 PathProgramCache]: Analyzing trace with hash 236530, now seen corresponding path program 1 times [2021-10-28 23:29:04,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:04,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408827876] [2021-10-28 23:29:04,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:04,282 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:04,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:04,287 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:29:04,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:04,291 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:29:04,319 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:29:04,320 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:29:04,320 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:29:04,320 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:29:04,320 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:29:04,320 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:04,320 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:29:04,321 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:29:04,321 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration7_Loop [2021-10-28 23:29:04,321 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:29:04,321 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:29:04,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:04,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:04,388 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:29:04,388 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:29:04,388 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:04,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:04,391 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:04,392 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:29:04,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 23:29:04,392 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:29:04,431 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:29:04,431 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=0} Honda state: {ULTIMATE.start_base2flt_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:29:04,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:04,435 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:04,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:04,436 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:04,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 23:29:04,438 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:29:04,438 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:29:04,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:04,469 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:04,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:04,470 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:04,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 23:29:04,474 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:29:04,474 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:29:04,511 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:29:04,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:04,517 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:29:04,517 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:29:04,517 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:29:04,517 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:29:04,517 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:29:04,517 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:04,518 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:29:04,518 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:29:04,518 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration7_Loop [2021-10-28 23:29:04,518 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:29:04,518 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:29:04,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:04,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:04,590 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:29:04,590 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:29:04,590 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:04,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:04,591 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:04,600 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 [2021-10-28 23:29:04,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 23:29:04,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:29:04,610 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:29:04,610 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:29:04,610 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:29:04,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:29:04,612 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:29:04,612 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:29:04,614 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:29:04,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:04,641 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:04,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:04,642 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:04,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 23:29:04,648 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 [2021-10-28 23:29:04,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:29:04,657 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:29:04,657 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:29:04,657 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:29:04,657 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:29:04,658 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:29:04,658 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:29:04,661 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:29:04,663 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:29:04,663 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:29:04,663 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:04,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:04,665 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:04,666 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:29:04,666 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:29:04,666 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:29:04,666 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2021-10-28 23:29:04,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 23:29:04,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:04,690 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:29:04,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:04,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:04,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:29:04,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:04,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:04,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:29:04,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:04,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:04,853 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 [2021-10-28 23:29:04,853 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 50 transitions. cyclomatic complexity: 14 Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-10-28 23:29:04,865 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 50 transitions. cyclomatic complexity: 14. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 44 states and 54 transitions. Complement of second has 4 states. [2021-10-28 23:29:04,865 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 [2021-10-28 23:29:04,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-10-28 23:29:04,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 38 transitions. [2021-10-28 23:29:04,866 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 38 transitions. Stem has 21 letters. Loop has 3 letters. [2021-10-28 23:29:04,867 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:04,867 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 38 transitions. Stem has 24 letters. Loop has 3 letters. [2021-10-28 23:29:04,867 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:04,867 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 38 transitions. Stem has 21 letters. Loop has 6 letters. [2021-10-28 23:29:04,867 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:04,868 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 54 transitions. [2021-10-28 23:29:04,870 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:29:04,870 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 0 states and 0 transitions. [2021-10-28 23:29:04,871 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:29:04,871 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:29:04,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:29:04,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:29:04,871 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:29:04,871 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:29:04,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:29:04,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:29:04,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:29:04,872 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 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) [2021-10-28 23:29:04,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:29:04,872 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-28 23:29:04,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:29:04,872 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-28 23:29:04,873 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:29:04,873 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 23:29:04,873 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:29:04,873 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:29:04,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:29:04,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:29:04,873 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:29:04,873 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:29:04,873 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:29:04,873 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-28 23:29:04,873 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:29:04,873 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:29:04,873 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 23:29:04,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:29:04 BoogieIcfgContainer [2021-10-28 23:29:04,881 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:29:04,881 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:29:04,882 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:29:04,882 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:29:04,882 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:28:57" (3/4) ... [2021-10-28 23:29:04,889 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:29:04,889 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:29:04,891 INFO L168 Benchmark]: Toolchain (without parser) took 8874.64 ms. Allocated memory was 104.9 MB in the beginning and 176.2 MB in the end (delta: 71.3 MB). Free memory was 75.0 MB in the beginning and 73.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 73.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:29:04,892 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 104.9 MB. Free memory is still 57.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:29:04,892 INFO L168 Benchmark]: CACSL2BoogieTranslator took 386.22 ms. Allocated memory is still 104.9 MB. Free memory was 74.8 MB in the beginning and 77.5 MB in the end (delta: -2.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:29:04,893 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.55 ms. Allocated memory is still 104.9 MB. Free memory was 77.5 MB in the beginning and 75.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:29:04,893 INFO L168 Benchmark]: Boogie Preprocessor took 39.86 ms. Allocated memory is still 104.9 MB. Free memory was 75.4 MB in the beginning and 73.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:29:04,894 INFO L168 Benchmark]: RCFGBuilder took 786.95 ms. Allocated memory is still 104.9 MB. Free memory was 73.8 MB in the beginning and 57.8 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:29:04,895 INFO L168 Benchmark]: BuchiAutomizer took 7576.76 ms. Allocated memory was 104.9 MB in the beginning and 176.2 MB in the end (delta: 71.3 MB). Free memory was 57.8 MB in the beginning and 73.4 MB in the end (delta: -15.6 MB). Peak memory consumption was 57.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:29:04,895 INFO L168 Benchmark]: Witness Printer took 7.61 ms. Allocated memory is still 176.2 MB. Free memory is still 73.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:29:04,898 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 104.9 MB. Free memory is still 57.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 386.22 ms. Allocated memory is still 104.9 MB. Free memory was 74.8 MB in the beginning and 77.5 MB in the end (delta: -2.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.55 ms. Allocated memory is still 104.9 MB. Free memory was 77.5 MB in the beginning and 75.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.86 ms. Allocated memory is still 104.9 MB. Free memory was 75.4 MB in the beginning and 73.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 786.95 ms. Allocated memory is still 104.9 MB. Free memory was 73.8 MB in the beginning and 57.8 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 7576.76 ms. Allocated memory was 104.9 MB in the beginning and 176.2 MB in the end (delta: 71.3 MB). Free memory was 57.8 MB in the beginning and 73.4 MB in the end (delta: -15.6 MB). Peak memory consumption was 57.2 MB. Max. memory is 16.1 GB. * Witness Printer took 7.61 ms. Allocated memory is still 176.2 MB. Free memory is still 73.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 13 terminating modules (6 trivial, 7 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 253 + -2 * e and consists of 4 locations. One deterministic module has affine ranking function 253 + -2 * e 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 253 + -2 * e 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 253 + -2 * e and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. 6 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.5s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 5.6s. Construction of modules took 0.2s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 9. Automata minimization 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 72 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 43 states and ocurred in iteration 5. Nontrivial modules had stage [7, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 527 SDtfs, 344 SDslu, 149 SDs, 0 SdLazy, 176 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT6 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp57 ukn100 mio100 lsp100 div575 bol100 ite100 ukn100 eq132 hnf44 smp92 dnf100 smp100 tf105 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 56ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 23:29:04,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-10-28 23:29:05,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2021-10-28 23:29:05,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:05,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2021-10-28 23:29:05,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebe37587-a4bd-49c3-a6bc-fea7b20e5386/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...