./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-3a.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_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/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_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/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_2aa7b30e-e84b-41e8-8b49-abecac05f774/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 2e6e06de31959e386aafc2fb45c848364ae9fea32df4ba40928c607f134f313f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 08:22:55,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:22:55,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:22:55,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:22:55,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:22:55,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:22:55,108 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:22:55,111 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:22:55,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:22:55,116 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:22:55,117 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:22:55,119 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:22:55,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:22:55,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:22:55,124 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:22:55,126 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:22:55,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:22:55,129 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:22:55,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:22:55,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:22:55,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:22:55,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:22:55,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:22:55,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:22:55,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:22:55,152 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:22:55,153 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:22:55,154 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:22:55,155 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:22:55,157 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:22:55,158 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:22:55,159 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:22:55,160 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:22:55,162 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:22:55,164 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:22:55,164 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:22:55,166 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:22:55,166 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:22:55,167 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:22:55,169 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:22:55,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:22:55,178 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-07 08:22:55,230 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:22:55,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:22:55,232 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:22:55,233 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:22:55,234 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:22:55,235 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:22:55,235 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:22:55,235 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-07 08:22:55,236 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-07 08:22:55,236 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-07 08:22:55,238 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-07 08:22:55,238 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-07 08:22:55,238 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-07 08:22:55,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:22:55,239 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 08:22:55,239 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 08:22:55,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:22:55,240 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 08:22:55,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:22:55,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-07 08:22:55,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-07 08:22:55,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-07 08:22:55,241 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 08:22:55,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:22:55,242 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-07 08:22:55,242 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:22:55,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-07 08:22:55,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:22:55,245 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:22:55,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:22:55,246 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:22:55,246 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:22:55,248 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-07 08:22:55,248 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_2aa7b30e-e84b-41e8-8b49-abecac05f774/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e6e06de31959e386aafc2fb45c848364ae9fea32df4ba40928c607f134f313f [2021-11-07 08:22:55,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:22:55,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:22:55,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:22:55,693 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:22:55,694 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:22:55,695 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2021-11-07 08:22:55,822 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/data/f2c6eeb50/c62d17416449422695892a2db098e4dd/FLAG655c6047b [2021-11-07 08:22:56,439 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:22:56,439 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2021-11-07 08:22:56,450 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/data/f2c6eeb50/c62d17416449422695892a2db098e4dd/FLAG655c6047b [2021-11-07 08:22:56,733 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/data/f2c6eeb50/c62d17416449422695892a2db098e4dd [2021-11-07 08:22:56,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:22:56,739 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:22:56,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:22:56,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:22:56,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:22:56,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:22:56" (1/1) ... [2021-11-07 08:22:56,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9036ce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:56, skipping insertion in model container [2021-11-07 08:22:56,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:22:56" (1/1) ... [2021-11-07 08:22:56,768 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:22:56,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:22:57,030 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_2aa7b30e-e84b-41e8-8b49-abecac05f774/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c[730,743] [2021-11-07 08:22:57,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:22:57,154 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:22:57,169 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_2aa7b30e-e84b-41e8-8b49-abecac05f774/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c[730,743] [2021-11-07 08:22:57,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:22:57,284 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:22:57,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:57 WrapperNode [2021-11-07 08:22:57,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:22:57,286 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:22:57,286 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:22:57,286 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:22:57,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:57" (1/1) ... [2021-11-07 08:22:57,308 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:57" (1/1) ... [2021-11-07 08:22:57,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:22:57,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:22:57,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:22:57,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:22:57,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:57" (1/1) ... [2021-11-07 08:22:57,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:57" (1/1) ... [2021-11-07 08:22:57,371 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:57" (1/1) ... [2021-11-07 08:22:57,372 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:57" (1/1) ... [2021-11-07 08:22:57,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:57" (1/1) ... [2021-11-07 08:22:57,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:57" (1/1) ... [2021-11-07 08:22:57,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:57" (1/1) ... [2021-11-07 08:22:57,399 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:22:57,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:22:57,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:22:57,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:22:57,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:57" (1/1) ... [2021-11-07 08:22:57,412 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:22:57,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:22:57,470 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:22:57,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-07 08:22:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 08:22:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:22:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:22:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:22:58,213 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:22:58,213 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-11-07 08:22:58,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:22:58 BoogieIcfgContainer [2021-11-07 08:22:58,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:22:58,218 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-07 08:22:58,218 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-07 08:22:58,223 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-07 08:22:58,224 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:22:58,224 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.11 08:22:56" (1/3) ... [2021-11-07 08:22:58,226 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4971bbdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 08:22:58, skipping insertion in model container [2021-11-07 08:22:58,226 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:22:58,227 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:57" (2/3) ... [2021-11-07 08:22:58,227 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4971bbdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 08:22:58, skipping insertion in model container [2021-11-07 08:22:58,228 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:22:58,228 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:22:58" (3/3) ... [2021-11-07 08:22:58,230 INFO L389 chiAutomizerObserver]: Analyzing ICFG soft_float_1-3a.c.cil.c [2021-11-07 08:22:58,298 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-07 08:22:58,298 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-07 08:22:58,298 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-07 08:22:58,299 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-07 08:22:58,299 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-07 08:22:58,299 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-07 08:22:58,299 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-07 08:22:58,299 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-07 08:22:58,321 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 90 states, 89 states have (on average 1.6629213483146068) internal successors, (148), 89 states have internal predecessors, (148), 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 08:22:58,351 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2021-11-07 08:22:58,351 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:22:58,351 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:22:58,358 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-07 08:22:58,359 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-07 08:22:58,359 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-07 08:22:58,360 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 90 states, 89 states have (on average 1.6629213483146068) internal successors, (148), 89 states have internal predecessors, (148), 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 08:22:58,369 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2021-11-07 08:22:58,370 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:22:58,370 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:22:58,370 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-07 08:22:58,370 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-07 08:22:58,380 INFO L791 eck$LassoCheckResult]: Stem: 69#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; 28#L29true assume !(0 == base2flt_~m % 4294967296); 64#L35true assume !(base2flt_~m % 4294967296 < 16777216); 78#L57-2true [2021-11-07 08:22:58,380 INFO L793 eck$LassoCheckResult]: Loop: 78#L57-2true assume !false; 50#L58true assume base2flt_~m % 4294967296 >= 33554432; 45#L59true assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 78#L57-2true [2021-11-07 08:22:58,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:22:58,388 INFO L85 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2021-11-07 08:22:58,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:22:58,401 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385053569] [2021-11-07 08:22:58,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:22:58,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:22:58,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:22:58,652 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 08:22:58,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:22:58,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385053569] [2021-11-07 08:22:58,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385053569] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:22:58,654 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:22:58,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:22:58,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102542309] [2021-11-07 08:22:58,662 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-07 08:22:58,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:22:58,664 INFO L85 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2021-11-07 08:22:58,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:22:58,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883519192] [2021-11-07 08:22:58,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:22:58,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:22:58,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:22:58,682 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:22:58,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:22:58,713 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:22:58,778 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:22:58,779 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:22:58,779 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:22:58,779 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:22:58,780 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 08:22:58,780 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:22:58,780 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:22:58,780 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:22:58,780 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration1_Loop [2021-11-07 08:22:58,781 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:22:58,781 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:22:58,804 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 08:22:58,818 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 08:22:58,955 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:22:58,956 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 08:22:58,961 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:22:58,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:22:58,967 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:22:58,974 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:22:58,974 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:22:58,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-07 08:22:59,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-07 08:22:59,054 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:22:59,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:22:59,058 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:22:59,078 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 08:22:59,078 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:22:59,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-07 08:22:59,196 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-07 08:22:59,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-07 08:22:59,204 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:22:59,205 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:22:59,205 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:22:59,205 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:22:59,205 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 08:22:59,205 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:22:59,206 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:22:59,206 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:22:59,206 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration1_Loop [2021-11-07 08:22:59,206 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:22:59,206 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:22:59,208 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 08:22:59,218 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 08:22:59,367 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:22:59,373 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 08:22:59,375 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:22:59,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:22:59,376 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:22:59,388 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 08:22:59,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-07 08:22:59,406 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:22:59,408 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:22:59,408 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:22:59,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:22:59,409 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:22:59,414 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:22:59,414 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:22:59,433 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 08:22:59,442 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-07 08:22:59,446 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-07 08:22:59,448 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:22:59,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:22:59,454 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:22:59,472 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 08:22:59,473 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-07 08:22:59,473 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 08:22:59,474 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 08:22:59,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-07 08:22:59,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-07 08:22:59,526 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-07 08:22:59,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:22:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:22:59,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:22:59,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:22:59,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:22:59,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 08:22:59,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:22:59,677 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 08:22:59,700 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 08:22:59,706 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 90 states, 89 states have (on average 1.6629213483146068) internal successors, (148), 89 states have internal predecessors, (148), 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 08:22:59,845 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 90 states, 89 states have (on average 1.6629213483146068) internal successors, (148), 89 states have internal predecessors, (148), 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 265 states and 425 transitions. Complement of second has 6 states. [2021-11-07 08:22:59,845 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 08:22:59,851 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 08:22:59,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 278 transitions. [2021-11-07 08:22:59,855 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 278 transitions. Stem has 4 letters. Loop has 3 letters. [2021-11-07 08:22:59,856 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:22:59,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 278 transitions. Stem has 7 letters. Loop has 3 letters. [2021-11-07 08:22:59,857 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:22:59,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 278 transitions. Stem has 4 letters. Loop has 6 letters. [2021-11-07 08:22:59,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:22:59,859 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 265 states and 425 transitions. [2021-11-07 08:22:59,872 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2021-11-07 08:22:59,879 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 265 states to 57 states and 82 transitions. [2021-11-07 08:22:59,881 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2021-11-07 08:22:59,882 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2021-11-07 08:22:59,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 82 transitions. [2021-11-07 08:22:59,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 08:22:59,883 INFO L681 BuchiCegarLoop]: Abstraction has 57 states and 82 transitions. [2021-11-07 08:22:59,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 82 transitions. [2021-11-07 08:22:59,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 46. [2021-11-07 08:22:59,922 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 08:22:59,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 70 transitions. [2021-11-07 08:22:59,924 INFO L704 BuchiCegarLoop]: Abstraction has 46 states and 70 transitions. [2021-11-07 08:22:59,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:22:59,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:22:59,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:22:59,930 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 08:22:59,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:22:59,982 INFO L93 Difference]: Finished difference Result 24 states and 31 transitions. [2021-11-07 08:22:59,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:22:59,983 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2021-11-07 08:22:59,984 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-11-07 08:22:59,986 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 31 transitions. [2021-11-07 08:22:59,986 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2021-11-07 08:22:59,987 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-11-07 08:22:59,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2021-11-07 08:22:59,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:22:59,988 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-11-07 08:22:59,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2021-11-07 08:22:59,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-11-07 08:22:59,993 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 08:22:59,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2021-11-07 08:22:59,996 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-11-07 08:22:59,997 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-11-07 08:22:59,997 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-07 08:22:59,997 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 31 transitions. [2021-11-07 08:22:59,998 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-11-07 08:22:59,999 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:22:59,999 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:22:59,999 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:22:59,999 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-07 08:23:00,000 INFO L791 eck$LassoCheckResult]: Stem: 474#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); 475#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; 480#L29 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 476#L79 base2flt_#res := base2flt_~__retres4~0; 477#L80 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; 478#L29-1 assume !(0 == base2flt_~m % 4294967296); 479#L35-1 assume !(base2flt_~m % 4294967296 < 16777216); 484#L57-5 [2021-11-07 08:23:00,001 INFO L793 eck$LassoCheckResult]: Loop: 484#L57-5 assume !false; 486#L58-1 assume base2flt_~m % 4294967296 >= 33554432; 487#L59-1 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 484#L57-5 [2021-11-07 08:23:00,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:23:00,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1806627809, now seen corresponding path program 1 times [2021-11-07 08:23:00,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:23:00,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824302820] [2021-11-07 08:23:00,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:23:00,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:23:00,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:23:00,060 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:23:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:23:00,093 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:23:00,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:23:00,094 INFO L85 PathProgramCache]: Analyzing trace with hash 137171, now seen corresponding path program 1 times [2021-11-07 08:23:00,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:23:00,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305038476] [2021-11-07 08:23:00,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:23:00,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:23:00,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:23:00,106 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:23:00,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:23:00,118 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:23:00,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:23:00,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1013979123, now seen corresponding path program 1 times [2021-11-07 08:23:00,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:23:00,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306773113] [2021-11-07 08:23:00,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:23:00,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:23:00,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:23:00,158 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:23:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:23:00,213 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:23:00,260 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:23:00,260 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:23:00,260 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:23:00,260 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:23:00,260 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 08:23:00,260 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:23:00,260 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:23:00,261 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:23:00,261 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration2_Loop [2021-11-07 08:23:00,261 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:23:00,261 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:23:00,266 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 08:23:00,285 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 08:23:00,404 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:23:00,404 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 08:23:00,404 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:23:00,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:23:00,406 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:23:00,413 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:23:00,413 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:23:00,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-07 08:23:00,483 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 08:23:00,483 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 08:23:00,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-07 08:23:00,492 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:23:00,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:23:00,494 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:23:00,503 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:23:00,503 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:23:00,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-07 08:23:00,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-07 08:23:00,582 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:23:00,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:23:00,584 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:23:00,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-07 08:23:00,591 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 08:23:00,591 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:23:00,670 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-07 08:23:00,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-07 08:23:00,679 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:23:00,679 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:23:00,679 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:23:00,679 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:23:00,679 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 08:23:00,679 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:23:00,679 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:23:00,680 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:23:00,680 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration2_Loop [2021-11-07 08:23:00,680 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:23:00,680 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:23:00,682 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 08:23:00,691 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 08:23:00,821 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:23:00,822 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 08:23:00,822 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:23:00,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:23:00,826 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:23:00,833 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 08:23:00,845 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:23:00,845 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:23:00,845 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:23:00,845 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:23:00,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:23:00,848 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:23:00,848 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:23:00,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-07 08:23:00,865 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:23:00,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-07 08:23:00,913 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:23:00,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:23:00,915 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:23:00,921 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 08:23:00,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-07 08:23:00,933 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:23:00,934 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:23:00,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:23:00,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:23:00,934 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:23:00,936 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:23:00,936 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:23:00,953 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 08:23:00,957 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-07 08:23:00,957 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-07 08:23:00,957 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:23:00,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:23:00,959 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:23:00,966 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 08:23:00,966 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-07 08:23:00,966 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 08:23:00,967 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 08:23:00,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-07 08:23:01,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-07 08:23:01,016 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-07 08:23:01,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:23:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:23:01,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:23:01,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:23:01,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:23:01,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 08:23:01,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:23:01,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:23:01,146 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-11-07 08:23:01,147 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 31 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:23:01,163 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 08:23:01,163 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 08:23:01,163 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 08:23:01,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2021-11-07 08:23:01,164 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 7 letters. Loop has 3 letters. [2021-11-07 08:23:01,165 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:23:01,165 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 10 letters. Loop has 3 letters. [2021-11-07 08:23:01,165 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:23:01,165 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 7 letters. Loop has 6 letters. [2021-11-07 08:23:01,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:23:01,166 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 51 transitions. [2021-11-07 08:23:01,172 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2021-11-07 08:23:01,174 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 38 states and 47 transitions. [2021-11-07 08:23:01,174 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2021-11-07 08:23:01,175 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2021-11-07 08:23:01,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 47 transitions. [2021-11-07 08:23:01,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 08:23:01,175 INFO L681 BuchiCegarLoop]: Abstraction has 38 states and 47 transitions. [2021-11-07 08:23:01,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 47 transitions. [2021-11-07 08:23:01,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 27. [2021-11-07 08:23:01,178 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 08:23:01,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2021-11-07 08:23:01,178 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-11-07 08:23:01,178 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-11-07 08:23:01,179 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-07 08:23:01,179 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2021-11-07 08:23:01,179 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-11-07 08:23:01,179 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:23:01,180 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:23:01,180 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:23:01,180 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-07 08:23:01,181 INFO L791 eck$LassoCheckResult]: Stem: 586#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); 587#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; 593#L29 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 591#L79 base2flt_#res := base2flt_~__retres4~0; 592#L80 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; 594#L29-1 assume !(0 == base2flt_~m % 4294967296); 595#L35-1 assume base2flt_~m % 4294967296 < 16777216; 600#L47-3 [2021-11-07 08:23:01,181 INFO L793 eck$LassoCheckResult]: Loop: 600#L47-3 assume !false; 588#L38-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 590#L47-2 assume base2flt_~m % 4294967296 < 16777216; 600#L47-3 [2021-11-07 08:23:01,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:23:01,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1806627783, now seen corresponding path program 1 times [2021-11-07 08:23:01,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:23:01,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965840103] [2021-11-07 08:23:01,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:23:01,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:23:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:23:01,201 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:23:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:23:01,228 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:23:01,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:23:01,231 INFO L85 PathProgramCache]: Analyzing trace with hash 111412, now seen corresponding path program 1 times [2021-11-07 08:23:01,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:23:01,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973648619] [2021-11-07 08:23:01,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:23:01,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:23:01,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:23:01,242 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:23:01,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:23:01,247 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:23:01,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:23:01,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1013178798, now seen corresponding path program 1 times [2021-11-07 08:23:01,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:23:01,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901227587] [2021-11-07 08:23:01,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:23:01,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:23:01,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:23:01,319 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:23:01,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-07 08:23:01,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:23:01,380 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:23:01,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-07 08:23:01,450 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:23:01,450 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:23:01,450 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:23:01,450 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:23:01,450 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 08:23:01,450 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:23:01,450 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:23:01,450 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:23:01,450 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration3_Loop [2021-11-07 08:23:01,451 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:23:01,451 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:23:01,452 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 08:23:01,461 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 08:23:01,540 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:23:01,541 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 08:23:01,542 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:23:01,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:23:01,547 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:23:01,554 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:23:01,554 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:23:01,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-07 08:23:01,630 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 08:23:01,631 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 08:23:01,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-07 08:23:01,674 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:23:01,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:23:01,677 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:23:01,685 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:23:01,685 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:23:01,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-07 08:23:01,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-07 08:23:01,735 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:23:01,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:23:01,736 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:23:01,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-07 08:23:01,739 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 08:23:01,739 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:23:01,794 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-07 08:23:01,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-07 08:23:01,801 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:23:01,801 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:23:01,801 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:23:01,801 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:23:01,801 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 08:23:01,801 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:23:01,801 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:23:01,801 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:23:01,801 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration3_Loop [2021-11-07 08:23:01,802 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:23:01,802 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:23:01,803 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 08:23:01,821 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 08:23:01,918 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:23:01,918 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 08:23:01,918 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:23:01,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:23:01,919 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:23:01,926 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 08:23:01,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-07 08:23:01,936 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:23:01,937 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:23:01,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:23:01,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:23:01,937 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:23:01,939 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:23:01,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:23:01,953 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:23:01,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-07 08:23:01,998 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:23:01,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:23:01,999 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:23:02,010 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 08:23:02,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:23:02,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:23:02,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:23:02,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:23:02,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:23:02,024 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:23:02,024 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:23:02,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-07 08:23:02,045 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 08:23:02,050 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-07 08:23:02,050 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-07 08:23:02,050 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:23:02,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:23:02,052 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:23:02,054 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 08:23:02,055 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-07 08:23:02,055 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 08:23:02,055 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 08:23:02,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-07 08:23:02,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-07 08:23:02,106 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-07 08:23:02,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:23:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:23:02,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:23:02,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:23:02,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:23:02,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 08:23:02,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:23:02,269 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 08:23:02,270 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 08:23:02,270 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 08:23:02,283 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 08:23:02,284 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 08:23:02,284 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 08:23:02,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 34 transitions. [2021-11-07 08:23:02,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 34 transitions. Stem has 7 letters. Loop has 3 letters. [2021-11-07 08:23:02,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:23:02,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 34 transitions. Stem has 10 letters. Loop has 3 letters. [2021-11-07 08:23:02,286 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:23:02,286 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 34 transitions. Stem has 7 letters. Loop has 6 letters. [2021-11-07 08:23:02,286 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:23:02,286 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 56 transitions. [2021-11-07 08:23:02,288 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-11-07 08:23:02,289 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 42 states and 52 transitions. [2021-11-07 08:23:02,289 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2021-11-07 08:23:02,289 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-11-07 08:23:02,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 52 transitions. [2021-11-07 08:23:02,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 08:23:02,290 INFO L681 BuchiCegarLoop]: Abstraction has 42 states and 52 transitions. [2021-11-07 08:23:02,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 52 transitions. [2021-11-07 08:23:02,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 30. [2021-11-07 08:23:02,293 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 08:23:02,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2021-11-07 08:23:02,293 INFO L704 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2021-11-07 08:23:02,293 INFO L587 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2021-11-07 08:23:02,294 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-07 08:23:02,294 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 39 transitions. [2021-11-07 08:23:02,294 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-11-07 08:23:02,295 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:23:02,295 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:23:02,295 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:23:02,295 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-07 08:23:02,296 INFO L791 eck$LassoCheckResult]: Stem: 709#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); 710#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; 717#L29 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 715#L79 base2flt_#res := base2flt_~__retres4~0; 716#L80 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; 718#L29-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 712#L79-1 base2flt_#res := base2flt_~__retres4~0; 734#L80-1 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; 736#L29-2 assume !(0 == base2flt_~m % 4294967296); 735#L35-2 assume !(base2flt_~m % 4294967296 < 16777216); 721#L57-8 [2021-11-07 08:23:02,296 INFO L793 eck$LassoCheckResult]: Loop: 721#L57-8 assume !false; 733#L58-2 assume base2flt_~m % 4294967296 >= 33554432; 720#L59-2 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 721#L57-8 [2021-11-07 08:23:02,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:23:02,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1012956351, now seen corresponding path program 1 times [2021-11-07 08:23:02,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:23:02,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467417349] [2021-11-07 08:23:02,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:23:02,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:23:02,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:23:02,312 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:23:02,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:23:02,331 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:23:02,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:23:02,339 INFO L85 PathProgramCache]: Analyzing trace with hash 199730, now seen corresponding path program 1 times [2021-11-07 08:23:02,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:23:02,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786167173] [2021-11-07 08:23:02,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:23:02,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:23:02,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:23:02,352 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:23:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:23:02,363 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:23:02,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:23:02,363 INFO L85 PathProgramCache]: Analyzing trace with hash 542600884, now seen corresponding path program 1 times [2021-11-07 08:23:02,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:23:02,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075327349] [2021-11-07 08:23:02,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:23:02,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:23:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:23:02,397 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:23:02,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:23:02,428 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:23:02,463 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:23:02,463 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:23:02,463 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:23:02,463 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:23:02,463 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 08:23:02,464 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:23:02,464 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:23:02,464 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:23:02,464 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration4_Loop [2021-11-07 08:23:02,464 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:23:02,464 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:23:02,465 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 08:23:02,473 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 08:23:02,571 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:23:02,572 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 08:23:02,572 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:23:02,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:23:02,574 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:23:02,577 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:23:02,577 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:23:02,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-07 08:23:02,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-07 08:23:02,645 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:23:02,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:23:02,646 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:23:02,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-07 08:23:02,648 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 08:23:02,648 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:23:02,690 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-07 08:23:02,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-07 08:23:02,696 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:23:02,696 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:23:02,697 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:23:02,697 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:23:02,697 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 08:23:02,697 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:23:02,697 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:23:02,697 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:23:02,697 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration4_Loop [2021-11-07 08:23:02,697 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:23:02,697 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:23:02,698 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 08:23:02,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:23:02,790 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:23:02,790 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 08:23:02,790 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:23:02,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:23:02,793 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:23:02,825 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 08:23:02,837 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:23:02,837 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:23:02,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:23:02,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:23:02,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:23:02,840 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:23:02,840 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:23:02,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-07 08:23:02,857 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 08:23:02,860 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-07 08:23:02,861 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-07 08:23:02,861 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:23:02,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:23:02,862 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:23:02,871 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 08:23:02,871 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-07 08:23:02,871 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 08:23:02,872 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 08:23:02,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-07 08:23:02,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-07 08:23:02,913 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-07 08:23:02,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:23:02,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:23:02,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:23:02,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:23:03,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:23:03,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 08:23:03,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:23:03,026 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 08:23:03,027 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 08:23:03,028 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 08:23:03,048 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 08:23:03,049 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 08:23:03,049 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 08:23:03,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 31 transitions. [2021-11-07 08:23:03,049 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 10 letters. Loop has 3 letters. [2021-11-07 08:23:03,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:23:03,051 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 13 letters. Loop has 3 letters. [2021-11-07 08:23:03,052 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:23:03,053 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 10 letters. Loop has 6 letters. [2021-11-07 08:23:03,053 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:23:03,053 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 43 transitions. [2021-11-07 08:23:03,056 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-07 08:23:03,056 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 27 states and 35 transitions. [2021-11-07 08:23:03,056 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2021-11-07 08:23:03,057 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2021-11-07 08:23:03,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2021-11-07 08:23:03,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 08:23:03,058 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-11-07 08:23:03,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2021-11-07 08:23:03,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-11-07 08:23:03,062 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 08:23:03,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2021-11-07 08:23:03,062 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-11-07 08:23:03,062 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-11-07 08:23:03,063 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-07 08:23:03,063 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2021-11-07 08:23:03,063 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-07 08:23:03,063 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:23:03,064 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:23:03,064 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:23:03,064 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-07 08:23:03,065 INFO L791 eck$LassoCheckResult]: Stem: 830#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); 831#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; 838#L29 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 836#L79 base2flt_#res := base2flt_~__retres4~0; 837#L80 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; 839#L29-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 833#L79-1 base2flt_#res := base2flt_~__retres4~0; 852#L80-1 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; 854#L29-2 assume !(0 == base2flt_~m % 4294967296); 853#L35-2 assume base2flt_~m % 4294967296 < 16777216; 828#L47-5 [2021-11-07 08:23:03,065 INFO L793 eck$LassoCheckResult]: Loop: 828#L47-5 assume !false; 829#L38-2 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 841#L47-4 assume base2flt_~m % 4294967296 < 16777216; 828#L47-5 [2021-11-07 08:23:03,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:23:03,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1012956325, now seen corresponding path program 1 times [2021-11-07 08:23:03,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:23:03,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858267553] [2021-11-07 08:23:03,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:23:03,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:23:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:23:03,078 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:23:03,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:23:03,093 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:23:03,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:23:03,094 INFO L85 PathProgramCache]: Analyzing trace with hash 173971, now seen corresponding path program 1 times [2021-11-07 08:23:03,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:23:03,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339657992] [2021-11-07 08:23:03,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:23:03,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:23:03,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:23:03,099 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:23:03,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:23:03,103 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:23:03,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:23:03,104 INFO L85 PathProgramCache]: Analyzing trace with hash 541800559, now seen corresponding path program 1 times [2021-11-07 08:23:03,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:23:03,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022823550] [2021-11-07 08:23:03,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:23:03,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:23:03,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:23:03,118 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:23:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:23:03,137 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:23:03,169 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:23:03,169 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:23:03,169 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:23:03,169 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:23:03,170 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 08:23:03,170 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:23:03,170 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:23:03,170 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:23:03,170 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration5_Loop [2021-11-07 08:23:03,170 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:23:03,170 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:23:03,171 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 08:23:03,178 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 08:23:03,280 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:23:03,280 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 08:23:03,280 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:23:03,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:23:03,292 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:23:03,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-07 08:23:03,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-07 08:23:03,322 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:23:03,322 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:23:03,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-07 08:23:03,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-11-07 08:23:03,383 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:23:03,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:23:03,384 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:23:03,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-07 08:23:03,386 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 08:23:03,386 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:23:03,425 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-07 08:23:03,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-11-07 08:23:03,433 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:23:03,433 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:23:03,433 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:23:03,433 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:23:03,433 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 08:23:03,433 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:23:03,433 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:23:03,433 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:23:03,433 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration5_Loop [2021-11-07 08:23:03,433 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:23:03,434 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:23:03,434 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 08:23:03,441 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 08:23:03,505 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:23:03,505 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 08:23:03,505 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:23:03,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:23:03,510 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:23:03,512 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 08:23:03,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:23:03,523 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:23:03,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:23:03,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:23:03,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:23:03,525 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:23:03,525 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:23:03,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-07 08:23:03,537 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 08:23:03,542 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-07 08:23:03,542 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-07 08:23:03,543 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:23:03,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:23:03,544 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:23:03,546 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 08:23:03,546 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-07 08:23:03,546 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 08:23:03,546 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 08:23:03,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-07 08:23:03,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-11-07 08:23:03,586 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-07 08:23:03,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:23:03,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:23:03,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:23:03,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:23:03,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:23:03,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 08:23:03,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:23:03,704 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 08:23:03,705 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 08:23:03,705 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 08:23:03,711 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 08:23:03,712 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 08:23:03,712 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 08:23:03,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 28 transitions. [2021-11-07 08:23:03,713 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 10 letters. Loop has 3 letters. [2021-11-07 08:23:03,713 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:23:03,713 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 13 letters. Loop has 3 letters. [2021-11-07 08:23:03,713 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:23:03,713 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 10 letters. Loop has 6 letters. [2021-11-07 08:23:03,714 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:23:03,714 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2021-11-07 08:23:03,715 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-07 08:23:03,715 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2021-11-07 08:23:03,715 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-07 08:23:03,715 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-07 08:23:03,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-07 08:23:03,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:23:03,716 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:23:03,716 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:23:03,716 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:23:03,716 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-11-07 08:23:03,716 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-07 08:23:03,716 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-07 08:23:03,716 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-07 08:23:03,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.11 08:23:03 BoogieIcfgContainer [2021-11-07 08:23:03,723 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-07 08:23:03,724 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 08:23:03,724 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 08:23:03,724 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 08:23:03,725 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:22:58" (3/4) ... [2021-11-07 08:23:03,728 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 08:23:03,729 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 08:23:03,730 INFO L168 Benchmark]: Toolchain (without parser) took 6990.67 ms. Allocated memory was 119.5 MB in the beginning and 148.9 MB in the end (delta: 29.4 MB). Free memory was 80.1 MB in the beginning and 101.5 MB in the end (delta: -21.4 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:23:03,731 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 119.5 MB. Free memory is still 97.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:23:03,732 INFO L168 Benchmark]: CACSL2BoogieTranslator took 538.84 ms. Allocated memory is still 119.5 MB. Free memory was 79.9 MB in the beginning and 90.2 MB in the end (delta: -10.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-07 08:23:03,732 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.53 ms. Allocated memory is still 119.5 MB. Free memory was 90.2 MB in the beginning and 88.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:23:03,733 INFO L168 Benchmark]: Boogie Preprocessor took 42.10 ms. Allocated memory is still 119.5 MB. Free memory was 88.0 MB in the beginning and 86.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:23:03,734 INFO L168 Benchmark]: RCFGBuilder took 816.42 ms. Allocated memory is still 119.5 MB. Free memory was 86.0 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-11-07 08:23:03,734 INFO L168 Benchmark]: BuchiAutomizer took 5505.40 ms. Allocated memory was 119.5 MB in the beginning and 148.9 MB in the end (delta: 29.4 MB). Free memory was 69.2 MB in the beginning and 101.5 MB in the end (delta: -32.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:23:03,735 INFO L168 Benchmark]: Witness Printer took 4.72 ms. Allocated memory is still 148.9 MB. Free memory is still 101.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:23:03,738 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 119.5 MB. Free memory is still 97.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 538.84 ms. Allocated memory is still 119.5 MB. Free memory was 79.9 MB in the beginning and 90.2 MB in the end (delta: -10.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 70.53 ms. Allocated memory is still 119.5 MB. Free memory was 90.2 MB in the beginning and 88.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.10 ms. Allocated memory is still 119.5 MB. Free memory was 88.0 MB in the beginning and 86.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 816.42 ms. Allocated memory is still 119.5 MB. Free memory was 86.0 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 5505.40 ms. Allocated memory was 119.5 MB in the beginning and 148.9 MB in the end (delta: 29.4 MB). Free memory was 69.2 MB in the beginning and 101.5 MB in the end (delta: -32.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.72 ms. Allocated memory is still 148.9 MB. Free memory is still 101.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 5.4s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 4.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 34 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 30 states and ocurred in iteration 3. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 281 SDtfs, 248 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: 99ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-07 08:23:03,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-11-07 08:23:03,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa7b30e-e84b-41e8-8b49-abecac05f774/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