./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY --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 c9ff936057be59b0f479a8c37fd17409fe797633e9a8a05703f5728379735d91 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 08:43:52,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:43:52,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:43:52,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:43:52,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:43:52,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:43:52,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:43:52,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:43:52,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:43:52,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:43:52,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:43:52,950 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:43:52,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:43:52,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:43:52,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:43:52,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:43:52,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:43:52,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:43:52,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:43:52,979 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:43:52,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:43:52,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:43:52,985 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:43:52,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:43:52,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:43:52,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:43:52,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:43:52,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:43:52,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:43:52,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:43:52,996 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:43:52,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:43:52,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:43:53,000 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:43:53,002 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:43:53,002 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:43:53,003 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:43:53,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:43:53,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:43:53,005 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:43:53,006 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:43:53,007 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-07 08:43:53,035 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:43:53,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:43:53,036 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:43:53,036 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:43:53,038 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:43:53,038 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:43:53,038 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:43:53,039 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-07 08:43:53,039 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-07 08:43:53,039 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-07 08:43:53,040 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-07 08:43:53,040 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-07 08:43:53,040 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-07 08:43:53,040 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:43:53,041 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 08:43:53,041 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 08:43:53,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:43:53,042 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 08:43:53,042 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:43:53,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-07 08:43:53,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-07 08:43:53,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-07 08:43:53,043 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 08:43:53,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:43:53,044 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-07 08:43:53,044 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:43:53,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-07 08:43:53,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:43:53,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:43:53,045 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:43:53,045 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:43:53,046 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:43:53,047 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-07 08:43:53,047 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_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9ff936057be59b0f479a8c37fd17409fe797633e9a8a05703f5728379735d91 [2021-11-07 08:43:53,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:43:53,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:43:53,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:43:53,362 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:43:53,363 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:43:53,364 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c [2021-11-07 08:43:53,468 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/data/713b154ec/705c4d4f7c3c437ea3d4067cf9cdf899/FLAG80f071d7c [2021-11-07 08:43:54,162 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:43:54,163 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c [2021-11-07 08:43:54,179 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/data/713b154ec/705c4d4f7c3c437ea3d4067cf9cdf899/FLAG80f071d7c [2021-11-07 08:43:54,503 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/data/713b154ec/705c4d4f7c3c437ea3d4067cf9cdf899 [2021-11-07 08:43:54,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:43:54,515 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:43:54,520 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:43:54,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:43:54,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:43:54,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:43:54" (1/1) ... [2021-11-07 08:43:54,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29e9e93e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:54, skipping insertion in model container [2021-11-07 08:43:54,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:43:54" (1/1) ... [2021-11-07 08:43:54,540 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:43:54,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:43:54,774 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_4d9dda55-03ff-4809-b287-db17533e36ee/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c[755,768] [2021-11-07 08:43:54,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:43:54,871 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:43:54,884 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_4d9dda55-03ff-4809-b287-db17533e36ee/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c[755,768] [2021-11-07 08:43:54,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:43:54,948 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:43:54,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:54 WrapperNode [2021-11-07 08:43:54,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:43:54,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:43:54,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:43:54,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:43:54,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:54" (1/1) ... [2021-11-07 08:43:54,970 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:54" (1/1) ... [2021-11-07 08:43:55,020 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:43:55,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:43:55,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:43:55,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:43:55,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:54" (1/1) ... [2021-11-07 08:43:55,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:54" (1/1) ... [2021-11-07 08:43:55,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:54" (1/1) ... [2021-11-07 08:43:55,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:54" (1/1) ... [2021-11-07 08:43:55,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:54" (1/1) ... [2021-11-07 08:43:55,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:54" (1/1) ... [2021-11-07 08:43:55,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:54" (1/1) ... [2021-11-07 08:43:55,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:43:55,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:43:55,140 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:43:55,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:43:55,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:54" (1/1) ... [2021-11-07 08:43:55,153 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:43:55,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:43:55,186 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:43:55,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-07 08:43:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 08:43:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:43:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:43:55,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:43:55,972 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:43:55,972 INFO L299 CfgBuilder]: Removed 28 assume(true) statements. [2021-11-07 08:43:55,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:43:55 BoogieIcfgContainer [2021-11-07 08:43:55,974 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:43:55,975 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-07 08:43:55,976 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-07 08:43:55,980 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-07 08:43:55,981 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:43:55,982 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.11 08:43:54" (1/3) ... [2021-11-07 08:43:55,983 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2979268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 08:43:55, skipping insertion in model container [2021-11-07 08:43:55,984 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:43:55,984 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:54" (2/3) ... [2021-11-07 08:43:55,984 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2979268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 08:43:55, skipping insertion in model container [2021-11-07 08:43:55,985 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:43:55,985 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:43:55" (3/3) ... [2021-11-07 08:43:55,986 INFO L389 chiAutomizerObserver]: Analyzing ICFG soft_float_1-2a.c.cil.c [2021-11-07 08:43:56,035 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-07 08:43:56,035 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-07 08:43:56,036 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-07 08:43:56,036 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-07 08:43:56,036 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-07 08:43:56,036 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-07 08:43:56,036 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-07 08:43:56,036 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-07 08:43:56,077 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 89 states, 88 states have (on average 1.6704545454545454) internal successors, (147), 88 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:43:56,106 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2021-11-07 08:43:56,106 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:43:56,107 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:43:56,113 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-07 08:43:56,113 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-07 08:43:56,114 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-07 08:43:56,114 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 89 states, 88 states have (on average 1.6704545454545454) internal successors, (147), 88 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:43:56,123 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2021-11-07 08:43:56,124 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:43:56,124 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:43:56,124 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-07 08:43:56,124 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-07 08:43:56,131 INFO L791 eck$LassoCheckResult]: Stem: 65#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(24);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 52#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_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;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_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;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; 6#L30true assume !(0 == base2flt_~m % 4294967296); 76#L36true assume !(base2flt_~m % 4294967296 < 16777216); 20#L58-2true [2021-11-07 08:43:56,132 INFO L793 eck$LassoCheckResult]: Loop: 20#L58-2true assume !false; 49#L59true assume base2flt_~m % 4294967296 >= 33554432; 83#L60true assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 20#L58-2true [2021-11-07 08:43:56,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:43:56,139 INFO L85 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2021-11-07 08:43:56,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:43:56,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977935816] [2021-11-07 08:43:56,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:43:56,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:43:56,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:43:56,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:43:56,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:43:56,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977935816] [2021-11-07 08:43:56,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977935816] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:43:56,392 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:43:56,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:43:56,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640156029] [2021-11-07 08:43:56,416 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-07 08:43:56,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:43:56,418 INFO L85 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2021-11-07 08:43:56,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:43:56,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344146406] [2021-11-07 08:43:56,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:43:56,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:43:56,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:43:56,440 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:43:56,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:43:56,466 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:43:56,528 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:43:56,529 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:43:56,529 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:43:56,529 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:43:56,530 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 08:43:56,530 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:43:56,530 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:43:56,530 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:43:56,530 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration1_Loop [2021-11-07 08:43:56,531 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:43:56,531 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:43:56,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:43:56,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:43:56,696 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:43:56,697 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 08:43:56,700 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:43:56,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:43:56,702 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:43:56,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-07 08:43:56,704 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:43:56,704 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:43:56,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-07 08:43:56,772 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:43:56,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:43:56,775 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:43:56,783 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 08:43:56,784 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:43:56,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-07 08:43:56,841 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-07 08:43:56,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-11-07 08:43:56,847 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:43:56,847 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:43:56,847 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:43:56,847 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:43:56,848 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 08:43:56,848 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:43:56,848 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:43:56,848 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:43:56,848 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration1_Loop [2021-11-07 08:43:56,848 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:43:56,848 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:43:56,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:43:56,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:43:56,956 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:43:56,961 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 08:43:56,963 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:43:56,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:43:56,967 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:43:56,974 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 08:43:56,985 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:43:56,986 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:43:56,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:43:56,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:43:56,986 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:43:56,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-07 08:43:56,991 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:43:56,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:43:57,006 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 08:43:57,015 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-07 08:43:57,023 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-07 08:43:57,025 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:43:57,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:43:57,027 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:43:57,029 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 08:43:57,029 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-07 08:43:57,030 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 08:43:57,031 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2021-11-07 08:43:57,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-07 08:43:57,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-11-07 08:43:57,066 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-07 08:43:57,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:43:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:43:57,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:43:57,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:43:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:43:57,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 08:43:57,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:43:57,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:43:57,186 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-11-07 08:43:57,188 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 89 states, 88 states have (on average 1.6704545454545454) internal successors, (147), 88 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:43:57,301 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 89 states, 88 states have (on average 1.6704545454545454) internal successors, (147), 88 states have internal predecessors, (147), 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 262 states and 422 transitions. Complement of second has 6 states. [2021-11-07 08:43:57,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-07 08:43:57,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:43:57,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 276 transitions. [2021-11-07 08:43:57,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 276 transitions. Stem has 4 letters. Loop has 3 letters. [2021-11-07 08:43:57,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:43:57,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 276 transitions. Stem has 7 letters. Loop has 3 letters. [2021-11-07 08:43:57,310 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:43:57,310 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 276 transitions. Stem has 4 letters. Loop has 6 letters. [2021-11-07 08:43:57,310 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:43:57,311 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 262 states and 422 transitions. [2021-11-07 08:43:57,326 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2021-11-07 08:43:57,332 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 262 states to 57 states and 82 transitions. [2021-11-07 08:43:57,333 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2021-11-07 08:43:57,334 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2021-11-07 08:43:57,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 82 transitions. [2021-11-07 08:43:57,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 08:43:57,336 INFO L681 BuchiCegarLoop]: Abstraction has 57 states and 82 transitions. [2021-11-07 08:43:57,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 82 transitions. [2021-11-07 08:43:57,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 46. [2021-11-07 08:43:57,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 46 states have (on average 1.5217391304347827) internal successors, (70), 45 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:43:57,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 70 transitions. [2021-11-07 08:43:57,405 INFO L704 BuchiCegarLoop]: Abstraction has 46 states and 70 transitions. [2021-11-07 08:43:57,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:43:57,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:43:57,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:43:57,423 INFO L87 Difference]: Start difference. First operand 46 states and 70 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:43:57,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-07 08:43:57,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:43:57,476 INFO L93 Difference]: Finished difference Result 24 states and 31 transitions. [2021-11-07 08:43:57,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:43:57,477 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2021-11-07 08:43:57,479 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-11-07 08:43:57,480 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 31 transitions. [2021-11-07 08:43:57,480 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2021-11-07 08:43:57,482 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-11-07 08:43:57,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2021-11-07 08:43:57,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:43:57,483 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-11-07 08:43:57,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2021-11-07 08:43:57,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-11-07 08:43:57,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:43:57,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2021-11-07 08:43:57,495 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-11-07 08:43:57,496 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-11-07 08:43:57,496 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-07 08:43:57,496 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 31 transitions. [2021-11-07 08:43:57,498 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-11-07 08:43:57,498 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:43:57,498 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:43:57,499 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:43:57,499 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-07 08:43:57,500 INFO L791 eck$LassoCheckResult]: Stem: 472#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(24);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 473#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_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;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_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;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; 474#L30 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 475#L80 base2flt_#res := base2flt_~__retres4~0; 485#L81 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;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; 486#L30-1 assume !(0 == base2flt_~m % 4294967296); 487#L36-1 assume !(base2flt_~m % 4294967296 < 16777216); 477#L58-5 [2021-11-07 08:43:57,500 INFO L793 eck$LassoCheckResult]: Loop: 477#L58-5 assume !false; 478#L59-1 assume base2flt_~m % 4294967296 >= 33554432; 479#L60-1 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 477#L58-5 [2021-11-07 08:43:57,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:43:57,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1806627809, now seen corresponding path program 1 times [2021-11-07 08:43:57,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:43:57,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164769241] [2021-11-07 08:43:57,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:43:57,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:43:57,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:43:57,558 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:43:57,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:43:57,600 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:43:57,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:43:57,601 INFO L85 PathProgramCache]: Analyzing trace with hash 137171, now seen corresponding path program 1 times [2021-11-07 08:43:57,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:43:57,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511128654] [2021-11-07 08:43:57,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:43:57,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:43:57,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:43:57,613 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:43:57,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:43:57,633 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:43:57,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:43:57,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1013979123, now seen corresponding path program 1 times [2021-11-07 08:43:57,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:43:57,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198931273] [2021-11-07 08:43:57,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:43:57,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:43:57,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:43:57,681 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:43:57,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:43:57,711 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:43:57,766 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:43:57,767 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:43:57,767 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:43:57,767 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:43:57,767 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 08:43:57,767 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:43:57,767 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:43:57,767 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:43:57,767 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration2_Loop [2021-11-07 08:43:57,767 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:43:57,767 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:43:57,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:43:57,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:43:57,877 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:43:57,877 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 08:43:57,877 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:43:57,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:43:57,879 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:43:57,888 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:43:57,888 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:43:57,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-07 08:43:57,945 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 08:43:57,946 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: [] [2021-11-07 08:43:57,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-07 08:43:57,953 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:43:57,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:43:57,954 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:43:57,963 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:43:57,963 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:43:57,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-07 08:43:58,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-07 08:43:58,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:43:58,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:43:58,023 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:43:58,030 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 08:43:58,031 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:43:58,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-07 08:43:58,103 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-07 08:43:58,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-07 08:43:58,111 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:43:58,111 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:43:58,111 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:43:58,111 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:43:58,111 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 08:43:58,111 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:43:58,111 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:43:58,111 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:43:58,111 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration2_Loop [2021-11-07 08:43:58,111 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:43:58,112 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:43:58,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:43:58,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:43:58,208 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:43:58,208 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 08:43:58,208 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:43:58,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:43:58,211 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:43:58,224 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 08:43:58,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:43:58,234 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:43:58,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:43:58,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:43:58,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:43:58,237 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:43:58,237 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:43:58,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-07 08:43:58,254 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:43:58,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-07 08:43:58,296 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:43:58,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:43:58,298 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:43:58,304 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 08:43:58,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:43:58,314 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:43:58,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:43:58,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:43:58,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:43:58,316 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:43:58,316 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:43:58,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-07 08:43:58,334 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 08:43:58,338 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-07 08:43:58,338 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-07 08:43:58,338 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:43:58,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:43:58,339 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:43:58,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-07 08:43:58,342 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 08:43:58,342 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-07 08:43:58,343 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 08:43:58,343 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2021-11-07 08:43:58,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-07 08:43:58,387 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-07 08:43:58,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:43:58,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:43:58,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:43:58,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:43:58,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:43:58,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 08:43:58,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:43:58,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:43:58,493 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-11-07 08:43:58,493 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 31 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:43:58,513 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 31 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 41 states and 51 transitions. Complement of second has 5 states. [2021-11-07 08:43:58,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-07 08:43:58,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:43:58,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2021-11-07 08:43:58,515 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 7 letters. Loop has 3 letters. [2021-11-07 08:43:58,515 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:43:58,515 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 10 letters. Loop has 3 letters. [2021-11-07 08:43:58,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:43:58,516 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 7 letters. Loop has 6 letters. [2021-11-07 08:43:58,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:43:58,517 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 51 transitions. [2021-11-07 08:43:58,522 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2021-11-07 08:43:58,523 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 38 states and 47 transitions. [2021-11-07 08:43:58,523 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2021-11-07 08:43:58,525 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2021-11-07 08:43:58,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 47 transitions. [2021-11-07 08:43:58,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 08:43:58,525 INFO L681 BuchiCegarLoop]: Abstraction has 38 states and 47 transitions. [2021-11-07 08:43:58,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 47 transitions. [2021-11-07 08:43:58,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 27. [2021-11-07 08:43:58,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:43:58,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2021-11-07 08:43:58,531 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-11-07 08:43:58,531 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-11-07 08:43:58,531 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-07 08:43:58,532 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2021-11-07 08:43:58,532 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-11-07 08:43:58,532 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:43:58,533 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:43:58,535 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:43:58,535 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-07 08:43:58,535 INFO L791 eck$LassoCheckResult]: Stem: 587#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(24);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 588#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_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;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_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;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; 589#L30 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 590#L80 base2flt_#res := base2flt_~__retres4~0; 602#L81 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;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; 603#L30-1 assume !(0 == base2flt_~m % 4294967296); 605#L36-1 assume base2flt_~m % 4294967296 < 16777216; 585#L48-3 [2021-11-07 08:43:58,536 INFO L793 eck$LassoCheckResult]: Loop: 585#L48-3 assume !false; 604#L39-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 584#L48-2 assume base2flt_~m % 4294967296 < 16777216; 585#L48-3 [2021-11-07 08:43:58,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:43:58,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1806627783, now seen corresponding path program 1 times [2021-11-07 08:43:58,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:43:58,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525446663] [2021-11-07 08:43:58,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:43:58,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:43:58,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:43:58,583 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:43:58,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:43:58,615 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:43:58,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:43:58,619 INFO L85 PathProgramCache]: Analyzing trace with hash 111412, now seen corresponding path program 1 times [2021-11-07 08:43:58,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:43:58,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432594438] [2021-11-07 08:43:58,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:43:58,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:43:58,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:43:58,631 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:43:58,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:43:58,640 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:43:58,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:43:58,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1013178798, now seen corresponding path program 1 times [2021-11-07 08:43:58,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:43:58,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701324310] [2021-11-07 08:43:58,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:43:58,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:43:58,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:43:58,671 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:43:58,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:43:58,773 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:43:58,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-07 08:43:58,818 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:43:58,818 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:43:58,818 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:43:58,819 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:43:58,819 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 08:43:58,819 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:43:58,819 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:43:58,819 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:43:58,819 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration3_Loop [2021-11-07 08:43:58,820 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:43:58,820 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:43:58,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:43:58,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:43:58,890 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:43:58,891 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 08:43:58,892 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:43:58,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:43:58,899 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:43:58,906 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:43:58,906 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:43:58,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-07 08:43:58,955 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 08:43:58,955 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: [] [2021-11-07 08:43:58,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-07 08:43:58,965 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:43:58,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:43:58,967 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:43:58,975 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:43:58,975 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:43:58,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-07 08:43:59,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-07 08:43:59,023 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:43:59,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:43:59,025 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:43:59,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-07 08:43:59,028 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 08:43:59,029 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:43:59,095 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-07 08:43:59,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-07 08:43:59,104 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:43:59,104 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:43:59,105 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:43:59,105 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:43:59,105 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 08:43:59,105 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:43:59,105 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:43:59,105 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:43:59,105 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration3_Loop [2021-11-07 08:43:59,105 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:43:59,105 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:43:59,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:43:59,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:43:59,188 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:43:59,188 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 08:43:59,189 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:43:59,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:43:59,190 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:43:59,207 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 08:43:59,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:43:59,219 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:43:59,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:43:59,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:43:59,219 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:43:59,221 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:43:59,221 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:43:59,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-07 08:43:59,234 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:43:59,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-07 08:43:59,273 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:43:59,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:43:59,274 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:43:59,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-07 08:43:59,281 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 08:43:59,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:43:59,290 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:43:59,290 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:43:59,290 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:43:59,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:43:59,292 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:43:59,292 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:43:59,314 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 08:43:59,318 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-07 08:43:59,318 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-07 08:43:59,318 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:43:59,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:43:59,319 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:43:59,331 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 08:43:59,332 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-07 08:43:59,332 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 08:43:59,332 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2021-11-07 08:43:59,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-07 08:43:59,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-07 08:43:59,368 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-07 08:43:59,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:43:59,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:43:59,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:43:59,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:43:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:43:59,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 08:43:59,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:43:59,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:43:59,538 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-07 08:43:59,538 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:43:59,552 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 56 transitions. Complement of second has 5 states. [2021-11-07 08:43:59,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-07 08:43:59,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:43:59,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 34 transitions. [2021-11-07 08:43:59,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 34 transitions. Stem has 7 letters. Loop has 3 letters. [2021-11-07 08:43:59,554 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:43:59,554 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 34 transitions. Stem has 10 letters. Loop has 3 letters. [2021-11-07 08:43:59,554 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:43:59,554 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 34 transitions. Stem has 7 letters. Loop has 6 letters. [2021-11-07 08:43:59,555 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:43:59,555 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 56 transitions. [2021-11-07 08:43:59,556 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-11-07 08:43:59,557 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 42 states and 52 transitions. [2021-11-07 08:43:59,557 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2021-11-07 08:43:59,558 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-11-07 08:43:59,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 52 transitions. [2021-11-07 08:43:59,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 08:43:59,558 INFO L681 BuchiCegarLoop]: Abstraction has 42 states and 52 transitions. [2021-11-07 08:43:59,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 52 transitions. [2021-11-07 08:43:59,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 30. [2021-11-07 08:43:59,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.3) internal successors, (39), 29 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:43:59,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2021-11-07 08:43:59,562 INFO L704 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2021-11-07 08:43:59,562 INFO L587 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2021-11-07 08:43:59,562 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-07 08:43:59,562 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 39 transitions. [2021-11-07 08:43:59,563 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-11-07 08:43:59,563 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:43:59,563 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:43:59,564 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:43:59,564 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-07 08:43:59,565 INFO L791 eck$LassoCheckResult]: Stem: 711#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(24);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 712#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_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;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_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;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; 713#L30 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 714#L80 base2flt_#res := base2flt_~__retres4~0; 725#L81 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;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; 726#L30-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 721#L80-1 base2flt_#res := base2flt_~__retres4~0; 715#L81-1 main_#t~ret12 := base2flt_#res;main_~a~0 := main_#t~ret12;havoc main_#t~ret12;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; 703#L30-2 assume !(0 == base2flt_~m % 4294967296); 704#L36-2 assume !(base2flt_~m % 4294967296 < 16777216); 729#L58-8 [2021-11-07 08:43:59,565 INFO L793 eck$LassoCheckResult]: Loop: 729#L58-8 assume !false; 723#L59-2 assume base2flt_~m % 4294967296 >= 33554432; 724#L60-2 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 729#L58-8 [2021-11-07 08:43:59,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:43:59,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1012956351, now seen corresponding path program 1 times [2021-11-07 08:43:59,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:43:59,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347800039] [2021-11-07 08:43:59,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:43:59,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:43:59,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:43:59,583 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:43:59,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:43:59,601 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:43:59,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:43:59,602 INFO L85 PathProgramCache]: Analyzing trace with hash 199730, now seen corresponding path program 1 times [2021-11-07 08:43:59,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:43:59,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204865267] [2021-11-07 08:43:59,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:43:59,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:43:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:43:59,609 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:43:59,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:43:59,615 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:43:59,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:43:59,616 INFO L85 PathProgramCache]: Analyzing trace with hash 542600884, now seen corresponding path program 1 times [2021-11-07 08:43:59,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:43:59,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768518380] [2021-11-07 08:43:59,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:43:59,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:43:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:43:59,633 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:43:59,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:43:59,654 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:43:59,686 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:43:59,687 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:43:59,687 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:43:59,687 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:43:59,687 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 08:43:59,687 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:43:59,687 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:43:59,687 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:43:59,688 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration4_Loop [2021-11-07 08:43:59,688 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:43:59,688 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:43:59,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:43:59,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:43:59,770 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:43:59,770 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 08:43:59,771 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:43:59,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:43:59,772 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:43:59,784 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:43:59,784 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:43:59,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-07 08:43:59,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-07 08:43:59,841 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:43:59,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:43:59,843 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:43:59,848 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 08:43:59,848 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:43:59,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-07 08:43:59,911 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-07 08:43:59,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-07 08:43:59,919 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:43:59,919 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:43:59,919 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:43:59,919 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:43:59,919 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 08:43:59,919 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:43:59,919 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:43:59,920 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:43:59,920 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration4_Loop [2021-11-07 08:43:59,920 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:43:59,920 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:43:59,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:43:59,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:44:00,006 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:44:00,006 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 08:44:00,006 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:44:00,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:44:00,009 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:44:00,062 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 08:44:00,073 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:44:00,073 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:44:00,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:44:00,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:44:00,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:44:00,075 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:44:00,075 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:44:00,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-07 08:44:00,086 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 08:44:00,100 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-07 08:44:00,100 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-07 08:44:00,100 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:44:00,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:44:00,104 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:44:00,106 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 08:44:00,106 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-07 08:44:00,107 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 08:44:00,107 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2021-11-07 08:44:00,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-07 08:44:00,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-07 08:44:00,152 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-07 08:44:00,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:44:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:44:00,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:44:00,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:44:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:44:00,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 08:44:00,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:44:00,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:44:00,254 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-11-07 08:44:00,255 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:00,277 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 33 states and 43 transitions. Complement of second has 4 states. [2021-11-07 08:44:00,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-07 08:44:00,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:00,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 31 transitions. [2021-11-07 08:44:00,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 10 letters. Loop has 3 letters. [2021-11-07 08:44:00,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:44:00,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 13 letters. Loop has 3 letters. [2021-11-07 08:44:00,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:44:00,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 10 letters. Loop has 6 letters. [2021-11-07 08:44:00,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:44:00,281 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 43 transitions. [2021-11-07 08:44:00,283 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-07 08:44:00,284 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 27 states and 35 transitions. [2021-11-07 08:44:00,284 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2021-11-07 08:44:00,285 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2021-11-07 08:44:00,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2021-11-07 08:44:00,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 08:44:00,285 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-11-07 08:44:00,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2021-11-07 08:44:00,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-11-07 08:44:00,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:00,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2021-11-07 08:44:00,294 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-11-07 08:44:00,294 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-11-07 08:44:00,294 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-07 08:44:00,294 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2021-11-07 08:44:00,331 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-07 08:44:00,331 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:44:00,331 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:44:00,332 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:44:00,332 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-07 08:44:00,332 INFO L791 eck$LassoCheckResult]: Stem: 832#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(24);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 833#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_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;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_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;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; 834#L30 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 835#L80 base2flt_#res := base2flt_~__retres4~0; 844#L81 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;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; 845#L30-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 842#L80-1 base2flt_#res := base2flt_~__retres4~0; 836#L81-1 main_#t~ret12 := base2flt_#res;main_~a~0 := main_#t~ret12;havoc main_#t~ret12;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; 824#L30-2 assume !(0 == base2flt_~m % 4294967296); 825#L36-2 assume base2flt_~m % 4294967296 < 16777216; 831#L48-5 [2021-11-07 08:44:00,332 INFO L793 eck$LassoCheckResult]: Loop: 831#L48-5 assume !false; 849#L39-2 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 830#L48-4 assume base2flt_~m % 4294967296 < 16777216; 831#L48-5 [2021-11-07 08:44:00,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:44:00,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1012956325, now seen corresponding path program 1 times [2021-11-07 08:44:00,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:44:00,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633047176] [2021-11-07 08:44:00,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:44:00,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:44:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:44:00,355 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:44:00,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:44:00,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-07 08:44:00,413 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:44:00,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:44:00,427 INFO L85 PathProgramCache]: Analyzing trace with hash 173971, now seen corresponding path program 1 times [2021-11-07 08:44:00,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:44:00,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893995701] [2021-11-07 08:44:00,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:44:00,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:44:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:44:00,432 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:44:00,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:44:00,437 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:44:00,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:44:00,451 INFO L85 PathProgramCache]: Analyzing trace with hash 541800559, now seen corresponding path program 1 times [2021-11-07 08:44:00,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:44:00,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41282207] [2021-11-07 08:44:00,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:44:00,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:44:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:44:00,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-07 08:44:00,470 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:44:00,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:44:00,489 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:44:00,518 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:44:00,519 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:44:00,519 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:44:00,519 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:44:00,519 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 08:44:00,519 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:44:00,519 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:44:00,520 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:44:00,520 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration5_Loop [2021-11-07 08:44:00,520 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:44:00,520 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:44:00,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:44:00,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:44:00,586 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:44:00,586 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 08:44:00,587 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:44:00,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:44:00,588 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:44:00,596 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:44:00,596 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:44:00,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-07 08:44:00,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-11-07 08:44:00,657 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:44:00,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:44:00,658 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:44:00,660 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 08:44:00,661 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:44:00,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-07 08:44:00,735 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-07 08:44:00,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-11-07 08:44:00,742 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:44:00,742 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:44:00,743 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:44:00,743 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:44:00,743 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 08:44:00,743 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:44:00,743 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:44:00,743 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:44:00,743 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration5_Loop [2021-11-07 08:44:00,743 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:44:00,743 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:44:00,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:44:00,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:44:00,812 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:44:00,812 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 08:44:00,812 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:44:00,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:44:00,813 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:44:00,823 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 08:44:00,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:44:00,834 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:44:00,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:44:00,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:44:00,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:44:00,836 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:44:00,836 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:44:00,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-07 08:44:00,854 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 08:44:00,859 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-07 08:44:00,859 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-07 08:44:00,859 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:44:00,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:44:00,860 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:44:00,862 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 08:44:00,862 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-07 08:44:00,863 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 08:44:00,863 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2021-11-07 08:44:00,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-07 08:44:00,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-11-07 08:44:00,903 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-07 08:44:00,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:44:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:44:00,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:44:00,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:44:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:44:00,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 08:44:00,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:44:01,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:44:01,031 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-07 08:44:01,031 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:01,038 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 39 transitions. Complement of second has 4 states. [2021-11-07 08:44:01,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-07 08:44:01,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:01,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 28 transitions. [2021-11-07 08:44:01,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 10 letters. Loop has 3 letters. [2021-11-07 08:44:01,040 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:44:01,040 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 13 letters. Loop has 3 letters. [2021-11-07 08:44:01,040 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:44:01,040 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 10 letters. Loop has 6 letters. [2021-11-07 08:44:01,041 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:44:01,041 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2021-11-07 08:44:01,042 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-07 08:44:01,042 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2021-11-07 08:44:01,042 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-07 08:44:01,042 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-07 08:44:01,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-07 08:44:01,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:44:01,042 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:44:01,042 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:44:01,043 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:44:01,043 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-11-07 08:44:01,043 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-07 08:44:01,043 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-07 08:44:01,043 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-07 08:44:01,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.11 08:44:01 BoogieIcfgContainer [2021-11-07 08:44:01,050 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-07 08:44:01,051 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 08:44:01,051 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 08:44:01,051 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 08:44:01,051 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:43:55" (3/4) ... [2021-11-07 08:44:01,055 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 08:44:01,055 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 08:44:01,057 INFO L168 Benchmark]: Toolchain (without parser) took 6541.20 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 68.8 MB in the beginning and 66.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. [2021-11-07 08:44:01,058 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 73.4 MB. Free memory was 41.7 MB in the beginning and 41.7 MB in the end (delta: 35.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:44:01,058 INFO L168 Benchmark]: CACSL2BoogieTranslator took 429.53 ms. Allocated memory is still 96.5 MB. Free memory was 68.7 MB in the beginning and 55.7 MB in the end (delta: 13.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-07 08:44:01,059 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.80 ms. Allocated memory is still 96.5 MB. Free memory was 55.7 MB in the beginning and 53.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:44:01,059 INFO L168 Benchmark]: Boogie Preprocessor took 117.24 ms. Allocated memory is still 96.5 MB. Free memory was 53.3 MB in the beginning and 51.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:44:01,060 INFO L168 Benchmark]: RCFGBuilder took 834.93 ms. Allocated memory is still 96.5 MB. Free memory was 51.6 MB in the beginning and 34.5 MB in the end (delta: 17.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-11-07 08:44:01,060 INFO L168 Benchmark]: BuchiAutomizer took 5074.63 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 34.4 MB in the beginning and 67.8 MB in the end (delta: -33.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:44:01,061 INFO L168 Benchmark]: Witness Printer took 4.75 ms. Allocated memory is still 123.7 MB. Free memory was 67.8 MB in the beginning and 66.9 MB in the end (delta: 883.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:44:01,064 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 73.4 MB. Free memory was 41.7 MB in the beginning and 41.7 MB in the end (delta: 35.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 429.53 ms. Allocated memory is still 96.5 MB. Free memory was 68.7 MB in the beginning and 55.7 MB in the end (delta: 13.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.80 ms. Allocated memory is still 96.5 MB. Free memory was 55.7 MB in the beginning and 53.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 117.24 ms. Allocated memory is still 96.5 MB. Free memory was 53.3 MB in the beginning and 51.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 834.93 ms. Allocated memory is still 96.5 MB. Free memory was 51.6 MB in the beginning and 34.5 MB in the end (delta: 17.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 5074.63 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 34.4 MB in the beginning and 67.8 MB in the end (delta: -33.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.75 ms. Allocated memory is still 123.7 MB. Free memory was 67.8 MB in the beginning and 66.9 MB in the end (delta: 883.7 kB). Peak memory consumption was 2.1 MB. 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 6 terminating modules (1 trivial, 5 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. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.0s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 3.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 34 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 30 states and ocurred in iteration 3. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 280 SDtfs, 247 SDslu, 27 SDs, 0 SdLazy, 38 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp57 ukn100 mio100 lsp100 div583 bol100 ite100 ukn100 eq132 hnf44 smp92 dnf100 smp100 tf105 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 67ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-07 08:44:01,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-11-07 08:44:01,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d9dda55-03ff-4809-b287-db17533e36ee/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE