./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/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_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/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_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/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 95f89ee6bcff8f17eb3e93b344abecdfb8ddea0894d1b25afafccf6235d7ced6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 08:11:02,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:11:02,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:11:02,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:11:02,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:11:02,151 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:11:02,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:11:02,159 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:11:02,162 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:11:02,169 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:11:02,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:11:02,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:11:02,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:11:02,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:11:02,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:11:02,185 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:11:02,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:11:02,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:11:02,192 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:11:02,201 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:11:02,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:11:02,206 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:11:02,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:11:02,212 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:11:02,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:11:02,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:11:02,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:11:02,226 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:11:02,227 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:11:02,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:11:02,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:11:02,231 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:11:02,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:11:02,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:11:02,236 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:11:02,237 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:11:02,237 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:11:02,238 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:11:02,238 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:11:02,239 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:11:02,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:11:02,241 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-07 08:11:02,298 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:11:02,298 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:11:02,299 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:11:02,299 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:11:02,301 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:11:02,301 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:11:02,301 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:11:02,301 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-07 08:11:02,302 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-07 08:11:02,302 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-07 08:11:02,303 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-07 08:11:02,303 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-07 08:11:02,304 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-07 08:11:02,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:11:02,304 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 08:11:02,304 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 08:11:02,305 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:11:02,305 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 08:11:02,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:11:02,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-07 08:11:02,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-07 08:11:02,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-07 08:11:02,306 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 08:11:02,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:11:02,307 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-07 08:11:02,307 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:11:02,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-07 08:11:02,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:11:02,309 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:11:02,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:11:02,309 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:11:02,310 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:11:02,311 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-07 08:11:02,311 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_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95f89ee6bcff8f17eb3e93b344abecdfb8ddea0894d1b25afafccf6235d7ced6 [2021-11-07 08:11:02,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:11:02,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:11:02,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:11:02,716 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:11:02,718 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:11:02,719 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c [2021-11-07 08:11:02,815 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/data/4131180a3/4eb8c4d273334b2cbdb0e3c78823bbd9/FLAG185886c15 [2021-11-07 08:11:03,351 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:11:03,352 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c [2021-11-07 08:11:03,371 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/data/4131180a3/4eb8c4d273334b2cbdb0e3c78823bbd9/FLAG185886c15 [2021-11-07 08:11:03,678 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/data/4131180a3/4eb8c4d273334b2cbdb0e3c78823bbd9 [2021-11-07 08:11:03,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:11:03,682 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:11:03,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:11:03,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:11:03,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:11:03,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:11:03" (1/1) ... [2021-11-07 08:11:03,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@495e8865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:11:03, skipping insertion in model container [2021-11-07 08:11:03,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:11:03" (1/1) ... [2021-11-07 08:11:03,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:11:03,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:11:03,913 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_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c[728,741] [2021-11-07 08:11:04,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:11:04,012 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:11:04,023 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_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c[728,741] [2021-11-07 08:11:04,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:11:04,070 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:11:04,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:11:04 WrapperNode [2021-11-07 08:11:04,071 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:11:04,072 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:11:04,072 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:11:04,073 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:11:04,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:11:04" (1/1) ... [2021-11-07 08:11:04,108 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:11:04" (1/1) ... [2021-11-07 08:11:04,175 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:11:04,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:11:04,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:11:04,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:11:04,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:11:04" (1/1) ... [2021-11-07 08:11:04,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:11:04" (1/1) ... [2021-11-07 08:11:04,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:11:04" (1/1) ... [2021-11-07 08:11:04,211 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:11:04" (1/1) ... [2021-11-07 08:11:04,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:11:04" (1/1) ... [2021-11-07 08:11:04,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:11:04" (1/1) ... [2021-11-07 08:11:04,241 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:11:04" (1/1) ... [2021-11-07 08:11:04,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:11:04,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:11:04,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:11:04,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:11:04,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:11:04" (1/1) ... [2021-11-07 08:11:04,265 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:04,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:04,299 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:04,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-07 08:11:04,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 08:11:04,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:11:04,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:11:04,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:11:04,802 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:11:04,802 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-11-07 08:11:04,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:11:04 BoogieIcfgContainer [2021-11-07 08:11:04,804 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:11:04,806 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-07 08:11:04,806 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-07 08:11:04,810 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-07 08:11:04,811 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:11:04,811 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.11 08:11:03" (1/3) ... [2021-11-07 08:11:04,812 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@131f7992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 08:11:04, skipping insertion in model container [2021-11-07 08:11:04,812 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:11:04,813 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:11:04" (2/3) ... [2021-11-07 08:11:04,813 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@131f7992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 08:11:04, skipping insertion in model container [2021-11-07 08:11:04,813 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:11:04,813 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:11:04" (3/3) ... [2021-11-07 08:11:04,815 INFO L389 chiAutomizerObserver]: Analyzing ICFG soft_float_3a.c.cil.c [2021-11-07 08:11:04,887 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-07 08:11:04,888 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-07 08:11:04,888 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-07 08:11:04,888 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-07 08:11:04,888 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-07 08:11:04,888 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-07 08:11:04,889 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-07 08:11:04,889 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-07 08:11:04,940 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 70 states, 69 states have (on average 1.7681159420289856) internal successors, (122), 69 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:04,984 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2021-11-07 08:11:04,984 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:11:04,985 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:11:04,991 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-07 08:11:04,991 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-07 08:11:04,991 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-07 08:11:04,992 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 70 states, 69 states have (on average 1.7681159420289856) internal successors, (122), 69 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:04,999 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2021-11-07 08:11:05,000 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:11:05,000 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:11:05,000 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-07 08:11:05,000 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-07 08:11:05,008 INFO L791 eck$LassoCheckResult]: Stem: 54#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(22);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 41#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 20#L29true assume !(0 == base2flt_~m % 4294967296); 52#L35true assume !(base2flt_~m % 4294967296 < 16777216); 61#L57-2true [2021-11-07 08:11:05,008 INFO L793 eck$LassoCheckResult]: Loop: 61#L57-2true assume !false; 38#L58true assume base2flt_~m % 4294967296 >= 33554432; 35#L59true assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 61#L57-2true [2021-11-07 08:11:05,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:05,014 INFO L85 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2021-11-07 08:11:05,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:11:05,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577163257] [2021-11-07 08:11:05,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:11:05,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:11:05,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:11:05,370 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 08:11:05,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:11:05,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577163257] [2021-11-07 08:11:05,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577163257] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:11:05,373 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:11:05,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:11:05,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708597252] [2021-11-07 08:11:05,380 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-07 08:11:05,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:05,389 INFO L85 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2021-11-07 08:11:05,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:11:05,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495202938] [2021-11-07 08:11:05,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:11:05,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:11:05,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:05,408 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:11:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:05,462 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:11:05,542 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:11:05,542 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:11:05,543 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:11:05,543 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:11:05,543 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 08:11:05,543 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:05,544 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:11:05,544 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:11:05,544 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration1_Loop [2021-11-07 08:11:05,544 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:11:05,544 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:11:05,565 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 08:11:05,578 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 08:11:05,707 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:11:05,708 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 08:11:05,713 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:05,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:05,715 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:05,721 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:11:05,721 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:11:05,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-07 08:11:05,791 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 08:11:05,791 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 08:11:05,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:05,799 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:05,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:05,802 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:05,808 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:11:05,809 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:11:05,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-07 08:11:05,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:05,873 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:05,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:05,875 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:05,877 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 08:11:05,878 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:11:05,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-07 08:11:05,934 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-07 08:11:05,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-11-07 08:11:05,937 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:11:05,937 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:11:05,937 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:11:05,937 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:11:05,938 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 08:11:05,938 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:05,938 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:11:05,938 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:11:05,938 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration1_Loop [2021-11-07 08:11:05,938 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:11:05,938 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:11:05,939 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 08:11:05,956 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 08:11:06,049 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:11:06,054 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 08:11:06,055 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:06,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:06,058 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:06,060 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 08:11:06,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:11:06,071 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:11:06,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:11:06,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:11:06,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:11:06,076 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:11:06,077 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:11:06,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-07 08:11:06,098 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:11:06,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:06,137 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:06,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:06,142 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:06,149 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 08:11:06,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:11:06,160 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:11:06,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:11:06,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:11:06,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:11:06,163 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:11:06,163 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:11:06,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-07 08:11:06,181 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 08:11:06,185 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-07 08:11:06,186 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-07 08:11:06,187 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:06,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:06,190 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:06,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-07 08:11:06,214 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 08:11:06,214 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-07 08:11:06,214 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 08:11:06,215 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 08:11:06,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:06,254 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-07 08:11:06,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:11:06,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:11:06,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:11:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:11:06,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 08:11:06,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:11:06,352 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 08:11:06,366 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 08:11:06,368 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 70 states, 69 states have (on average 1.7681159420289856) internal successors, (122), 69 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:06,431 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 70 states, 69 states have (on average 1.7681159420289856) internal successors, (122), 69 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 201 states and 341 transitions. Complement of second has 6 states. [2021-11-07 08:11:06,432 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 08:11:06,433 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 08:11:06,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 226 transitions. [2021-11-07 08:11:06,437 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 226 transitions. Stem has 4 letters. Loop has 3 letters. [2021-11-07 08:11:06,438 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:11:06,438 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 226 transitions. Stem has 7 letters. Loop has 3 letters. [2021-11-07 08:11:06,438 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:11:06,438 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 226 transitions. Stem has 4 letters. Loop has 6 letters. [2021-11-07 08:11:06,439 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:11:06,439 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 201 states and 341 transitions. [2021-11-07 08:11:06,453 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 39 [2021-11-07 08:11:06,460 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 201 states to 79 states and 120 transitions. [2021-11-07 08:11:06,461 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 75 [2021-11-07 08:11:06,461 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 76 [2021-11-07 08:11:06,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 79 states and 120 transitions. [2021-11-07 08:11:06,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 08:11:06,462 INFO L681 BuchiCegarLoop]: Abstraction has 79 states and 120 transitions. [2021-11-07 08:11:06,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states and 120 transitions. [2021-11-07 08:11:06,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 68. [2021-11-07 08:11:06,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 68 states have (on average 1.588235294117647) internal successors, (108), 67 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:06,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 108 transitions. [2021-11-07 08:11:06,497 INFO L704 BuchiCegarLoop]: Abstraction has 68 states and 108 transitions. [2021-11-07 08:11:06,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:11:06,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:11:06,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:11:06,502 INFO L87 Difference]: Start difference. First operand 68 states and 108 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:06,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:11:06,561 INFO L93 Difference]: Finished difference Result 35 states and 48 transitions. [2021-11-07 08:11:06,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:11:06,562 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 48 transitions. [2021-11-07 08:11:06,564 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2021-11-07 08:11:06,565 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 35 states and 48 transitions. [2021-11-07 08:11:06,565 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2021-11-07 08:11:06,565 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2021-11-07 08:11:06,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 48 transitions. [2021-11-07 08:11:06,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:11:06,566 INFO L681 BuchiCegarLoop]: Abstraction has 35 states and 48 transitions. [2021-11-07 08:11:06,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 48 transitions. [2021-11-07 08:11:06,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-11-07 08:11:06,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 34 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:06,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2021-11-07 08:11:06,570 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 48 transitions. [2021-11-07 08:11:06,570 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 48 transitions. [2021-11-07 08:11:06,570 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-07 08:11:06,570 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 48 transitions. [2021-11-07 08:11:06,571 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2021-11-07 08:11:06,572 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:11:06,572 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:11:06,572 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:11:06,572 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-07 08:11:06,573 INFO L791 eck$LassoCheckResult]: Stem: 449#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(22);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 422#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 423#L29 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 451#L79 base2flt_#res := base2flt_~__retres4~0; 427#L80 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 428#L29-1 assume !(0 == base2flt_~m % 4294967296); 429#L35-1 assume !(base2flt_~m % 4294967296 < 16777216); 430#L57-5 [2021-11-07 08:11:06,573 INFO L793 eck$LassoCheckResult]: Loop: 430#L57-5 assume !false; 432#L58-1 assume base2flt_~m % 4294967296 >= 33554432; 433#L59-1 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 430#L57-5 [2021-11-07 08:11:06,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:06,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1806627809, now seen corresponding path program 1 times [2021-11-07 08:11:06,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:11:06,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329355803] [2021-11-07 08:11:06,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:11:06,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:11:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:11:06,628 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 08:11:06,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:11:06,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329355803] [2021-11-07 08:11:06,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329355803] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:11:06,629 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:11:06,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:11:06,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254801661] [2021-11-07 08:11:06,629 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-07 08:11:06,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:06,630 INFO L85 PathProgramCache]: Analyzing trace with hash 137171, now seen corresponding path program 1 times [2021-11-07 08:11:06,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:11:06,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326397592] [2021-11-07 08:11:06,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:11:06,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:11:06,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:06,637 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:11:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:06,657 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:11:06,721 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:11:06,722 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:11:06,722 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:11:06,722 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:11:06,722 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 08:11:06,722 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:06,722 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:11:06,723 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:11:06,723 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration2_Loop [2021-11-07 08:11:06,723 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:11:06,723 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:11:06,724 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 08:11:06,743 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 08:11:06,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:06,872 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:11:06,872 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 08:11:06,873 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:06,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:06,889 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:06,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-07 08:11:06,895 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:11:06,895 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:11:06,951 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 08:11:06,951 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 08:11:06,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:06,958 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:06,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:06,960 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:06,970 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:11:06,970 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:11:06,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-07 08:11:07,020 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-11-07 08:11:07,021 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:07,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:07,022 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:07,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-07 08:11:07,032 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 08:11:07,032 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:11:07,068 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-07 08:11:07,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:07,073 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:11:07,073 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:11:07,074 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:11:07,074 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:11:07,074 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 08:11:07,074 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:07,074 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:11:07,074 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:11:07,074 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration2_Loop [2021-11-07 08:11:07,074 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:11:07,074 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:11:07,075 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 08:11:07,082 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 08:11:07,151 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:11:07,151 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 08:11:07,152 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:07,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:07,153 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:07,166 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 08:11:07,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:11:07,175 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:11:07,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:11:07,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:11:07,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:11:07,178 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:11:07,178 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:11:07,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-07 08:11:07,193 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:11:07,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:07,234 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:07,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:07,235 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:07,238 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 08:11:07,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:11:07,250 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:11:07,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:11:07,250 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:11:07,250 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:11:07,251 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:11:07,252 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:11:07,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-07 08:11:07,265 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 08:11:07,268 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-07 08:11:07,268 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-07 08:11:07,268 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:07,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:07,274 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:07,276 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 08:11:07,276 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-07 08:11:07,276 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 08:11:07,276 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 08:11:07,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-07 08:11:07,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:07,322 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-07 08:11:07,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:11:07,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:11:07,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:11:07,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:11:07,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 08:11:07,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:11:07,451 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 08:11:07,452 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 08:11:07,453 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 48 transitions. cyclomatic complexity: 19 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:07,477 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 48 transitions. cyclomatic complexity: 19. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 63 states and 85 transitions. Complement of second has 5 states. [2021-11-07 08:11:07,482 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 08:11:07,482 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 08:11:07,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 50 transitions. [2021-11-07 08:11:07,483 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 50 transitions. Stem has 7 letters. Loop has 3 letters. [2021-11-07 08:11:07,483 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:11:07,484 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 50 transitions. Stem has 10 letters. Loop has 3 letters. [2021-11-07 08:11:07,484 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:11:07,485 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 50 transitions. Stem has 7 letters. Loop has 6 letters. [2021-11-07 08:11:07,486 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:11:07,486 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 85 transitions. [2021-11-07 08:11:07,488 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2021-11-07 08:11:07,491 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 60 states and 81 transitions. [2021-11-07 08:11:07,493 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2021-11-07 08:11:07,493 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2021-11-07 08:11:07,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 81 transitions. [2021-11-07 08:11:07,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 08:11:07,494 INFO L681 BuchiCegarLoop]: Abstraction has 60 states and 81 transitions. [2021-11-07 08:11:07,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 81 transitions. [2021-11-07 08:11:07,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 38. [2021-11-07 08:11:07,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 1.368421052631579) internal successors, (52), 37 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:07,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 52 transitions. [2021-11-07 08:11:07,505 INFO L704 BuchiCegarLoop]: Abstraction has 38 states and 52 transitions. [2021-11-07 08:11:07,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:11:07,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:11:07,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:11:07,506 INFO L87 Difference]: Start difference. First operand 38 states and 52 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:07,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:11:07,554 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2021-11-07 08:11:07,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:11:07,557 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 46 transitions. [2021-11-07 08:11:07,562 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2021-11-07 08:11:07,564 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 36 states and 46 transitions. [2021-11-07 08:11:07,566 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-11-07 08:11:07,567 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-11-07 08:11:07,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 46 transitions. [2021-11-07 08:11:07,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:11:07,569 INFO L681 BuchiCegarLoop]: Abstraction has 36 states and 46 transitions. [2021-11-07 08:11:07,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 46 transitions. [2021-11-07 08:11:07,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2021-11-07 08:11:07,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.28125) internal successors, (41), 31 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:07,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2021-11-07 08:11:07,577 INFO L704 BuchiCegarLoop]: Abstraction has 32 states and 41 transitions. [2021-11-07 08:11:07,577 INFO L587 BuchiCegarLoop]: Abstraction has 32 states and 41 transitions. [2021-11-07 08:11:07,577 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-07 08:11:07,577 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 41 transitions. [2021-11-07 08:11:07,578 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2021-11-07 08:11:07,578 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:11:07,578 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:11:07,579 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:11:07,579 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-07 08:11:07,579 INFO L791 eck$LassoCheckResult]: Stem: 666#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(22);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 643#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 644#L29 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 669#L79 base2flt_#res := base2flt_~__retres4~0; 648#L80 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 649#L29-1 assume !(0 == base2flt_~m % 4294967296); 650#L35-1 assume base2flt_~m % 4294967296 < 16777216; 651#L47-3 [2021-11-07 08:11:07,580 INFO L793 eck$LassoCheckResult]: Loop: 651#L47-3 assume !false; 667#L38-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 660#L47-2 assume base2flt_~m % 4294967296 < 16777216; 651#L47-3 [2021-11-07 08:11:07,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:07,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1806627783, now seen corresponding path program 1 times [2021-11-07 08:11:07,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:11:07,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629366758] [2021-11-07 08:11:07,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:11:07,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:11:07,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:07,601 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:11:07,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:07,658 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:11:07,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:07,668 INFO L85 PathProgramCache]: Analyzing trace with hash 111412, now seen corresponding path program 1 times [2021-11-07 08:11:07,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:11:07,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169021350] [2021-11-07 08:11:07,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:11:07,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:11:07,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:07,682 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:11:07,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:07,688 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:11:07,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:07,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1013178798, now seen corresponding path program 1 times [2021-11-07 08:11:07,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:11:07,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393583879] [2021-11-07 08:11:07,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:11:07,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:11:07,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:07,708 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:11:07,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:07,734 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:11:07,774 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:11:07,774 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:11:07,774 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:11:07,774 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:11:07,774 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 08:11:07,775 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:07,775 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:11:07,775 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:11:07,775 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration3_Loop [2021-11-07 08:11:07,775 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:11:07,775 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:11:07,778 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 08:11:07,785 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 08:11:07,853 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:11:07,853 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 08:11:07,854 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:07,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:07,855 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:07,861 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:11:07,862 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:11:07,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-07 08:11:07,926 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 08:11:07,926 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 08:11:07,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:07,933 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:07,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:07,934 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:07,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-07 08:11:07,939 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:11:07,940 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:11:07,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:07,974 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:07,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:07,975 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:07,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-07 08:11:07,979 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 08:11:07,980 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:11:08,016 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-07 08:11:08,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:08,019 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:11:08,019 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:11:08,019 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:11:08,019 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:11:08,019 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 08:11:08,020 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:08,020 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:11:08,020 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:11:08,020 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration3_Loop [2021-11-07 08:11:08,020 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:11:08,020 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:11:08,021 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 08:11:08,032 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 08:11:08,114 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:11:08,115 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 08:11:08,115 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:08,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:08,122 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:08,150 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 08:11:08,158 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:11:08,159 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:11:08,159 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:11:08,159 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:11:08,159 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:11:08,161 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:11:08,161 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:11:08,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-07 08:11:08,177 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:11:08,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:08,217 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:08,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:08,219 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:08,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-07 08:11:08,228 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 08:11:08,241 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:11:08,241 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:11:08,241 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:11:08,241 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:11:08,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:11:08,244 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:11:08,244 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:11:08,261 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 08:11:08,265 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-07 08:11:08,265 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-07 08:11:08,265 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:08,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:08,268 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:08,278 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 08:11:08,279 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-07 08:11:08,279 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 08:11:08,279 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 08:11:08,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-07 08:11:08,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:08,323 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-07 08:11:08,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:08,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:11:08,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:11:08,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:11:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:11:08,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 08:11:08,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:11:08,463 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 08:11:08,464 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 08:11:08,464 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 41 transitions. cyclomatic complexity: 14 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:08,473 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 41 transitions. cyclomatic complexity: 14. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 39 states and 50 transitions. Complement of second has 5 states. [2021-11-07 08:11:08,474 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 08:11:08,474 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 08:11:08,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2021-11-07 08:11:08,474 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2021-11-07 08:11:08,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:11:08,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 10 letters. Loop has 3 letters. [2021-11-07 08:11:08,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:11:08,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 7 letters. Loop has 6 letters. [2021-11-07 08:11:08,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:11:08,476 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 50 transitions. [2021-11-07 08:11:08,476 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-11-07 08:11:08,477 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 36 states and 46 transitions. [2021-11-07 08:11:08,477 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-11-07 08:11:08,477 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2021-11-07 08:11:08,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 46 transitions. [2021-11-07 08:11:08,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 08:11:08,478 INFO L681 BuchiCegarLoop]: Abstraction has 36 states and 46 transitions. [2021-11-07 08:11:08,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 46 transitions. [2021-11-07 08:11:08,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2021-11-07 08:11:08,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 34 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:08,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2021-11-07 08:11:08,481 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 45 transitions. [2021-11-07 08:11:08,481 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 45 transitions. [2021-11-07 08:11:08,482 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-07 08:11:08,483 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 45 transitions. [2021-11-07 08:11:08,483 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-11-07 08:11:08,483 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:11:08,483 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:11:08,484 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:11:08,484 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-07 08:11:08,484 INFO L791 eck$LassoCheckResult]: Stem: 790#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(22);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 765#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 766#L29 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 794#L79 base2flt_#res := base2flt_~__retres4~0; 770#L80 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 771#L29-1 assume !(0 == base2flt_~m % 4294967296); 772#L35-1 assume base2flt_~m % 4294967296 < 16777216; 773#L47-3 assume !false; 791#L38-1 assume base2flt_~e <= -128;base2flt_~__retres4~0 := 0; 777#L79-1 base2flt_#res := base2flt_~__retres4~0; 784#L80-1 main_#t~ret12 := base2flt_#res;main_~one~0 := main_#t~ret12;havoc main_#t~ret12;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 788#L29-2 assume !(0 == base2flt_~m % 4294967296); 785#L35-2 assume !(base2flt_~m % 4294967296 < 16777216); 786#L57-8 [2021-11-07 08:11:08,484 INFO L793 eck$LassoCheckResult]: Loop: 786#L57-8 assume !false; 778#L58-2 assume base2flt_~m % 4294967296 >= 33554432; 780#L59-2 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 786#L57-8 [2021-11-07 08:11:08,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:08,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1421262134, now seen corresponding path program 1 times [2021-11-07 08:11:08,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:11:08,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727095022] [2021-11-07 08:11:08,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:11:08,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:11:08,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:11:08,533 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 08:11:08,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:11:08,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727095022] [2021-11-07 08:11:08,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727095022] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:11:08,534 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:11:08,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:11:08,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270516918] [2021-11-07 08:11:08,535 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-07 08:11:08,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:08,537 INFO L85 PathProgramCache]: Analyzing trace with hash 199730, now seen corresponding path program 1 times [2021-11-07 08:11:08,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:11:08,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349380410] [2021-11-07 08:11:08,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:11:08,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:11:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:08,555 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:11:08,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:08,561 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:11:08,598 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:11:08,598 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:11:08,598 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:11:08,598 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:11:08,599 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 08:11:08,599 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:08,599 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:11:08,599 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:11:08,599 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration4_Loop [2021-11-07 08:11:08,599 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:11:08,600 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:11:08,601 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 08:11:08,608 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 08:11:08,720 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:11:08,720 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 08:11:08,721 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:08,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:08,736 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:08,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-11-07 08:11:08,773 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:11:08,774 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:11:08,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-07 08:11:08,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:08,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:08,821 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:08,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:08,825 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:08,833 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 08:11:08,833 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:11:08,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-07 08:11:08,870 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-07 08:11:08,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:08,874 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:11:08,874 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:11:08,875 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:11:08,875 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:11:08,875 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 08:11:08,875 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:08,875 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:11:08,875 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:11:08,875 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration4_Loop [2021-11-07 08:11:08,875 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:11:08,875 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:11:08,876 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 08:11:08,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:11:08,967 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:11:08,967 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 08:11:08,967 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:08,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:08,974 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:08,985 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 08:11:08,996 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:11:08,996 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:11:08,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:11:08,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:11:08,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:11:09,001 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:11:09,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:11:09,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-07 08:11:09,012 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 08:11:09,015 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-07 08:11:09,015 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-07 08:11:09,015 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:09,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:09,016 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:09,022 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 08:11:09,022 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-07 08:11:09,022 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 08:11:09,022 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 08:11:09,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-07 08:11:09,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:09,067 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-07 08:11:09,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:11:09,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:11:09,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:11:09,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:11:09,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 08:11:09,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:11:09,179 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 08:11:09,180 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 08:11:09,181 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 45 transitions. cyclomatic complexity: 15 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:09,199 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 45 transitions. cyclomatic complexity: 15. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 52 states and 65 transitions. Complement of second has 5 states. [2021-11-07 08:11:09,200 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 08:11:09,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:09,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2021-11-07 08:11:09,201 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 13 letters. Loop has 3 letters. [2021-11-07 08:11:09,201 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:11:09,201 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 16 letters. Loop has 3 letters. [2021-11-07 08:11:09,202 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:11:09,202 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 13 letters. Loop has 6 letters. [2021-11-07 08:11:09,202 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:11:09,202 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 65 transitions. [2021-11-07 08:11:09,203 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2021-11-07 08:11:09,204 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 49 states and 61 transitions. [2021-11-07 08:11:09,204 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2021-11-07 08:11:09,204 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2021-11-07 08:11:09,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 61 transitions. [2021-11-07 08:11:09,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 08:11:09,205 INFO L681 BuchiCegarLoop]: Abstraction has 49 states and 61 transitions. [2021-11-07 08:11:09,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 61 transitions. [2021-11-07 08:11:09,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 38. [2021-11-07 08:11:09,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 37 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:09,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 49 transitions. [2021-11-07 08:11:09,208 INFO L704 BuchiCegarLoop]: Abstraction has 38 states and 49 transitions. [2021-11-07 08:11:09,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:11:09,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:11:09,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:11:09,210 INFO L87 Difference]: Start difference. First operand 38 states and 49 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:09,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:11:09,231 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2021-11-07 08:11:09,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:11:09,231 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 50 transitions. [2021-11-07 08:11:09,232 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-11-07 08:11:09,235 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 39 states and 49 transitions. [2021-11-07 08:11:09,235 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2021-11-07 08:11:09,235 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2021-11-07 08:11:09,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 49 transitions. [2021-11-07 08:11:09,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 08:11:09,238 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 49 transitions. [2021-11-07 08:11:09,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 49 transitions. [2021-11-07 08:11:09,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2021-11-07 08:11:09,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 1.263157894736842) internal successors, (48), 37 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:09,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 48 transitions. [2021-11-07 08:11:09,242 INFO L704 BuchiCegarLoop]: Abstraction has 38 states and 48 transitions. [2021-11-07 08:11:09,242 INFO L587 BuchiCegarLoop]: Abstraction has 38 states and 48 transitions. [2021-11-07 08:11:09,242 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-07 08:11:09,242 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 48 transitions. [2021-11-07 08:11:09,243 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-11-07 08:11:09,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:11:09,243 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:11:09,243 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:11:09,244 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-07 08:11:09,244 INFO L791 eck$LassoCheckResult]: Stem: 1026#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(22);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 997#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 998#L29 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 1028#L79 base2flt_#res := base2flt_~__retres4~0; 1002#L80 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1003#L29-1 assume !(0 == base2flt_~m % 4294967296); 1004#L35-1 assume base2flt_~m % 4294967296 < 16777216; 1005#L47-3 assume !false; 1025#L38-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1015#L47-2 assume !(base2flt_~m % 4294967296 < 16777216); 1008#L73-1 base2flt_~m := ~bitwiseAnd(base2flt_~m, ~bitwiseComplement(16777216));base2flt_~res~0 := ~bitwiseOr(base2flt_~m, 16777216 * (128 + base2flt_~e));base2flt_~__retres4~0 := base2flt_~res~0; 1009#L79-1 base2flt_#res := base2flt_~__retres4~0; 1018#L80-1 main_#t~ret12 := base2flt_#res;main_~one~0 := main_#t~ret12;havoc main_#t~ret12;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1022#L29-2 assume !(0 == base2flt_~m % 4294967296); 1019#L35-2 assume base2flt_~m % 4294967296 < 16777216; 1021#L47-5 [2021-11-07 08:11:09,244 INFO L793 eck$LassoCheckResult]: Loop: 1021#L47-5 assume !false; 1023#L38-2 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1030#L47-4 assume base2flt_~m % 4294967296 < 16777216; 1021#L47-5 [2021-11-07 08:11:09,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:09,244 INFO L85 PathProgramCache]: Analyzing trace with hash 793003697, now seen corresponding path program 1 times [2021-11-07 08:11:09,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:11:09,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542269398] [2021-11-07 08:11:09,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:11:09,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:11:09,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:11:09,291 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 08:11:09,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:11:09,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542269398] [2021-11-07 08:11:09,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542269398] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:11:09,292 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:11:09,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:11:09,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070603470] [2021-11-07 08:11:09,293 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-07 08:11:09,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:09,293 INFO L85 PathProgramCache]: Analyzing trace with hash 173971, now seen corresponding path program 1 times [2021-11-07 08:11:09,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:11:09,294 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824029296] [2021-11-07 08:11:09,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:11:09,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:11:09,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:09,297 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:11:09,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:09,301 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:11:09,324 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:11:09,324 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:11:09,324 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:11:09,325 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:11:09,325 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 08:11:09,325 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:09,325 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:11:09,325 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:11:09,325 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration5_Loop [2021-11-07 08:11:09,325 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:11:09,325 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:11:09,326 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 08:11:09,332 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 08:11:09,390 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:11:09,390 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 08:11:09,391 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:09,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:09,392 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:09,394 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:11:09,394 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:11:09,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-07 08:11:09,442 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 08:11:09,442 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 08:11:09,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:09,445 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:09,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:09,446 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:09,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-07 08:11:09,447 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:11:09,447 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:11:09,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-11-07 08:11:09,479 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:09,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:09,480 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:09,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-11-07 08:11:09,481 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 08:11:09,481 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:11:09,515 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-07 08:11:09,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:09,520 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:11:09,521 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:11:09,521 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:11:09,521 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:11:09,521 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 08:11:09,521 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:09,521 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:11:09,521 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:11:09,521 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration5_Loop [2021-11-07 08:11:09,521 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:11:09,521 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:11:09,522 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 08:11:09,536 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 08:11:09,588 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:11:09,588 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 08:11:09,588 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:09,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:09,590 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:09,598 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 08:11:09,607 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:11:09,607 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:11:09,607 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:11:09,607 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:11:09,607 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:11:09,609 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:11:09,609 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:11:09,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-07 08:11:09,627 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:11:09,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:09,648 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:09,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:09,649 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:09,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-11-07 08:11:09,651 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 08:11:09,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:11:09,659 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:11:09,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:11:09,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:11:09,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:11:09,660 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:11:09,660 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:11:09,664 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 08:11:09,666 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-07 08:11:09,666 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-07 08:11:09,666 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:09,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:09,667 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:09,669 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 08:11:09,669 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-07 08:11:09,669 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 08:11:09,669 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 08:11:09,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-11-07 08:11:09,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-11-07 08:11:09,697 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-07 08:11:09,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:09,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:11:09,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:11:09,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:11:09,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:11:09,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 08:11:09,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:11:09,858 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 08:11:09,859 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 08:11:09,859 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 48 transitions. cyclomatic complexity: 15 Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:09,871 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 48 transitions. cyclomatic complexity: 15. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 56 states and 69 transitions. Complement of second has 5 states. [2021-11-07 08:11:09,872 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 08:11:09,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:09,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2021-11-07 08:11:09,872 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 15 letters. Loop has 3 letters. [2021-11-07 08:11:09,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:11:09,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 18 letters. Loop has 3 letters. [2021-11-07 08:11:09,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:11:09,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 15 letters. Loop has 6 letters. [2021-11-07 08:11:09,874 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:11:09,874 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 69 transitions. [2021-11-07 08:11:09,875 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-11-07 08:11:09,876 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 53 states and 65 transitions. [2021-11-07 08:11:09,876 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2021-11-07 08:11:09,876 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2021-11-07 08:11:09,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 65 transitions. [2021-11-07 08:11:09,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 08:11:09,877 INFO L681 BuchiCegarLoop]: Abstraction has 53 states and 65 transitions. [2021-11-07 08:11:09,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 65 transitions. [2021-11-07 08:11:09,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 41. [2021-11-07 08:11:09,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 40 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:09,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2021-11-07 08:11:09,880 INFO L704 BuchiCegarLoop]: Abstraction has 41 states and 52 transitions. [2021-11-07 08:11:09,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:11:09,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:11:09,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:11:09,882 INFO L87 Difference]: Start difference. First operand 41 states and 52 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:09,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:11:09,949 INFO L93 Difference]: Finished difference Result 49 states and 61 transitions. [2021-11-07 08:11:09,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 08:11:09,949 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 61 transitions. [2021-11-07 08:11:09,950 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-11-07 08:11:09,950 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 49 states and 61 transitions. [2021-11-07 08:11:09,950 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-11-07 08:11:09,951 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-11-07 08:11:09,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 61 transitions. [2021-11-07 08:11:09,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 08:11:09,953 INFO L681 BuchiCegarLoop]: Abstraction has 49 states and 61 transitions. [2021-11-07 08:11:09,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 61 transitions. [2021-11-07 08:11:09,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2021-11-07 08:11:09,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 42 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:09,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 55 transitions. [2021-11-07 08:11:09,957 INFO L704 BuchiCegarLoop]: Abstraction has 43 states and 55 transitions. [2021-11-07 08:11:09,957 INFO L587 BuchiCegarLoop]: Abstraction has 43 states and 55 transitions. [2021-11-07 08:11:09,957 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-11-07 08:11:09,958 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 55 transitions. [2021-11-07 08:11:09,958 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-11-07 08:11:09,958 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:11:09,958 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:11:09,959 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:11:09,959 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-07 08:11:09,960 INFO L791 eck$LassoCheckResult]: Stem: 1286#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(22);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 1256#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1257#L29 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 1290#L79 base2flt_#res := base2flt_~__retres4~0; 1261#L80 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1262#L29-1 assume !(0 == base2flt_~m % 4294967296); 1263#L35-1 assume base2flt_~m % 4294967296 < 16777216; 1264#L47-3 assume !false; 1288#L38-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1274#L47-2 assume base2flt_~m % 4294967296 < 16777216; 1275#L47-3 assume !false; 1287#L38-1 assume base2flt_~e <= -128;base2flt_~__retres4~0 := 0; 1268#L79-1 base2flt_#res := base2flt_~__retres4~0; 1277#L80-1 main_#t~ret12 := base2flt_#res;main_~one~0 := main_#t~ret12;havoc main_#t~ret12;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1281#L29-2 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 1252#L79-2 base2flt_#res := base2flt_~__retres4~0; 1253#L80-2 main_#t~ret13 := base2flt_#res;main_~a~0 := main_#t~ret13;havoc main_#t~ret13;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1289#L29-3 assume !(0 == base2flt_~m % 4294967296); 1258#L35-3 assume !(base2flt_~m % 4294967296 < 16777216); 1259#L57-11 [2021-11-07 08:11:09,960 INFO L793 eck$LassoCheckResult]: Loop: 1259#L57-11 assume !false; 1265#L58-3 assume base2flt_~m % 4294967296 >= 33554432; 1266#L59-3 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 1259#L57-11 [2021-11-07 08:11:09,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:09,961 INFO L85 PathProgramCache]: Analyzing trace with hash -399436914, now seen corresponding path program 1 times [2021-11-07 08:11:09,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:11:09,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376290460] [2021-11-07 08:11:09,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:11:09,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:11:09,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:11:10,034 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:11:10,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:11:10,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376290460] [2021-11-07 08:11:10,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376290460] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 08:11:10,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395000918] [2021-11-07 08:11:10,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:11:10,046 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:11:10,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:10,054 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:11:10,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-11-07 08:11:10,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:11:10,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 08:11:10,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:11:10,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:10,238 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:11:10,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [395000918] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 08:11:10,239 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 08:11:10,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-11-07 08:11:10,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283931702] [2021-11-07 08:11:10,240 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-07 08:11:10,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:10,240 INFO L85 PathProgramCache]: Analyzing trace with hash 262289, now seen corresponding path program 1 times [2021-11-07 08:11:10,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:11:10,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861328293] [2021-11-07 08:11:10,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:11:10,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:11:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:10,253 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:11:10,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:10,265 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:11:10,301 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:11:10,301 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:11:10,301 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:11:10,301 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:11:10,301 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 08:11:10,301 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:10,301 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:11:10,302 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:11:10,302 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration6_Loop [2021-11-07 08:11:10,302 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:11:10,302 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:11:10,302 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 08:11:10,308 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 08:11:10,384 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:11:10,384 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 08:11:10,384 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:10,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:10,398 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:10,400 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:11:10,400 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:11:10,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-11-07 08:11:10,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:10,461 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:10,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:10,463 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:10,465 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 08:11:10,465 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:11:10,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-11-07 08:11:10,521 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-07 08:11:10,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:10,527 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:11:10,527 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:11:10,527 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:11:10,528 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:11:10,528 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 08:11:10,528 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:10,528 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:11:10,528 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:11:10,528 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration6_Loop [2021-11-07 08:11:10,528 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:11:10,528 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:11:10,529 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 08:11:10,535 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 08:11:10,605 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:11:10,606 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 08:11:10,606 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:10,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:10,607 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:10,609 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 08:11:10,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-11-07 08:11:10,618 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:11:10,618 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:11:10,618 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:11:10,618 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:11:10,618 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:11:10,619 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:11:10,619 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:11:10,631 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 08:11:10,638 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-07 08:11:10,638 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-07 08:11:10,638 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:10,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:10,641 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:10,643 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 08:11:10,643 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-07 08:11:10,643 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 08:11:10,643 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 08:11:10,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-11-07 08:11:10,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:10,670 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-07 08:11:10,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:10,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:11:10,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:11:10,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:11:10,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:11:10,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 08:11:10,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:11:10,797 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 08:11:10,797 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 08:11:10,797 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 55 transitions. cyclomatic complexity: 17 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:10,815 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 55 transitions. cyclomatic complexity: 17. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 59 transitions. Complement of second has 4 states. [2021-11-07 08:11:10,816 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 08:11:10,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:10,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 41 transitions. [2021-11-07 08:11:10,816 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 41 transitions. Stem has 19 letters. Loop has 3 letters. [2021-11-07 08:11:10,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:11:10,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 41 transitions. Stem has 22 letters. Loop has 3 letters. [2021-11-07 08:11:10,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:11:10,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 41 transitions. Stem has 19 letters. Loop has 6 letters. [2021-11-07 08:11:10,818 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:11:10,818 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 59 transitions. [2021-11-07 08:11:10,819 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-07 08:11:10,820 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 40 states and 51 transitions. [2021-11-07 08:11:10,820 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-11-07 08:11:10,820 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-11-07 08:11:10,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 51 transitions. [2021-11-07 08:11:10,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 08:11:10,821 INFO L681 BuchiCegarLoop]: Abstraction has 40 states and 51 transitions. [2021-11-07 08:11:10,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 51 transitions. [2021-11-07 08:11:10,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-11-07 08:11:10,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.275) internal successors, (51), 39 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:10,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2021-11-07 08:11:10,824 INFO L704 BuchiCegarLoop]: Abstraction has 40 states and 51 transitions. [2021-11-07 08:11:10,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:11:10,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 08:11:10,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:11:10,825 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:10,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:11:10,848 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2021-11-07 08:11:10,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 08:11:10,849 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 56 transitions. [2021-11-07 08:11:10,850 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-07 08:11:10,850 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 44 states and 54 transitions. [2021-11-07 08:11:10,850 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2021-11-07 08:11:10,851 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2021-11-07 08:11:10,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 54 transitions. [2021-11-07 08:11:10,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 08:11:10,851 INFO L681 BuchiCegarLoop]: Abstraction has 44 states and 54 transitions. [2021-11-07 08:11:10,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states and 54 transitions. [2021-11-07 08:11:10,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2021-11-07 08:11:10,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.25) internal successors, (50), 39 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:10,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2021-11-07 08:11:10,854 INFO L704 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2021-11-07 08:11:10,854 INFO L587 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2021-11-07 08:11:10,855 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-11-07 08:11:10,855 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 50 transitions. [2021-11-07 08:11:10,855 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-07 08:11:10,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:11:10,855 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:11:10,856 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:11:10,856 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-07 08:11:10,857 INFO L791 eck$LassoCheckResult]: Stem: 1599#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(22);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 1571#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1572#L29 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 1601#L79 base2flt_#res := base2flt_~__retres4~0; 1575#L80 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1576#L29-1 assume !(0 == base2flt_~m % 4294967296); 1577#L35-1 assume base2flt_~m % 4294967296 < 16777216; 1578#L47-3 assume !false; 1598#L38-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1590#L47-2 assume base2flt_~m % 4294967296 < 16777216; 1591#L47-3 assume !false; 1604#L38-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1606#L47-2 assume !(base2flt_~m % 4294967296 < 16777216); 1579#L73-1 base2flt_~m := ~bitwiseAnd(base2flt_~m, ~bitwiseComplement(16777216));base2flt_~res~0 := ~bitwiseOr(base2flt_~m, 16777216 * (128 + base2flt_~e));base2flt_~__retres4~0 := base2flt_~res~0; 1580#L79-1 base2flt_#res := base2flt_~__retres4~0; 1586#L80-1 main_#t~ret12 := base2flt_#res;main_~one~0 := main_#t~ret12;havoc main_#t~ret12;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1592#L29-2 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 1567#L79-2 base2flt_#res := base2flt_~__retres4~0; 1568#L80-2 main_#t~ret13 := base2flt_#res;main_~a~0 := main_#t~ret13;havoc main_#t~ret13;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1600#L29-3 assume !(0 == base2flt_~m % 4294967296); 1573#L35-3 assume base2flt_~m % 4294967296 < 16777216; 1574#L47-7 [2021-11-07 08:11:10,857 INFO L793 eck$LassoCheckResult]: Loop: 1574#L47-7 assume !false; 1569#L38-3 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1570#L47-6 assume base2flt_~m % 4294967296 < 16777216; 1574#L47-7 [2021-11-07 08:11:10,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:10,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1485728147, now seen corresponding path program 1 times [2021-11-07 08:11:10,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:11:10,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499147430] [2021-11-07 08:11:10,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:11:10,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:11:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:11:10,912 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:11:10,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:11:10,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499147430] [2021-11-07 08:11:10,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499147430] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 08:11:10,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328531661] [2021-11-07 08:11:10,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:11:10,914 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:11:10,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:10,915 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:11:10,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-11-07 08:11:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:11:10,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 08:11:10,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:11:11,153 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:11:11,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328531661] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 08:11:11,154 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 08:11:11,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-11-07 08:11:11,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578145973] [2021-11-07 08:11:11,155 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-07 08:11:11,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:11,155 INFO L85 PathProgramCache]: Analyzing trace with hash 236530, now seen corresponding path program 1 times [2021-11-07 08:11:11,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:11:11,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233080144] [2021-11-07 08:11:11,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:11:11,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:11:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:11,160 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:11:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:11,163 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:11:11,191 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:11:11,191 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:11:11,191 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:11:11,191 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:11:11,191 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 08:11:11,192 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:11,192 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:11:11,192 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:11:11,192 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration7_Loop [2021-11-07 08:11:11,192 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:11:11,192 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:11:11,193 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 08:11:11,197 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 08:11:11,250 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:11:11,251 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 08:11:11,251 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:11,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:11,253 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:11,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-11-07 08:11:11,255 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:11:11,255 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:11:11,292 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 08:11:11,292 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 08:11:11,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-11-07 08:11:11,295 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:11,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:11,296 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:11,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-11-07 08:11:11,310 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:11:11,311 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:11:11,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:11,347 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:11,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:11,347 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:11,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-11-07 08:11:11,350 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 08:11:11,350 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:11:11,389 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-07 08:11:11,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-11-07 08:11:11,391 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:11:11,392 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:11:11,392 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:11:11,392 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:11:11,392 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 08:11:11,392 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:11,392 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:11:11,392 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:11:11,392 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration7_Loop [2021-11-07 08:11:11,392 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:11:11,392 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:11:11,393 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 08:11:11,405 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 08:11:11,465 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:11:11,465 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 08:11:11,466 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:11,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:11,466 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:11,475 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 08:11:11,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-11-07 08:11:11,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:11:11,486 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:11:11,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:11:11,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:11:11,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:11:11,487 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:11:11,488 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:11:11,499 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:11:11,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:11,543 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:11,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:11,545 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:11,554 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 08:11:11,563 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:11:11,564 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:11:11,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:11:11,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:11:11,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:11:11,565 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:11:11,565 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:11:11,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-11-07 08:11:11,581 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 08:11:11,583 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-07 08:11:11,583 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-07 08:11:11,584 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:11,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:11,585 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:11,587 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 08:11:11,587 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-07 08:11:11,587 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 08:11:11,587 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 08:11:11,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-11-07 08:11:11,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:11,619 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-07 08:11:11,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:11,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:11:11,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:11:11,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:11:11,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:11:11,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 08:11:11,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:11:11,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:11,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:11,813 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 08:11:11,813 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 08:11:11,814 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 50 transitions. cyclomatic complexity: 14 Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:11,831 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 50 transitions. cyclomatic complexity: 14. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 44 states and 54 transitions. Complement of second has 4 states. [2021-11-07 08:11:11,831 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 08:11:11,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:11,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 38 transitions. [2021-11-07 08:11:11,832 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 38 transitions. Stem has 21 letters. Loop has 3 letters. [2021-11-07 08:11:11,833 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:11:11,833 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 38 transitions. Stem has 24 letters. Loop has 3 letters. [2021-11-07 08:11:11,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:11:11,834 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 38 transitions. Stem has 21 letters. Loop has 6 letters. [2021-11-07 08:11:11,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:11:11,834 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 54 transitions. [2021-11-07 08:11:11,835 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-07 08:11:11,835 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 0 states and 0 transitions. [2021-11-07 08:11:11,836 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-07 08:11:11,836 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-07 08:11:11,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-07 08:11:11,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:11:11,836 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:11:11,836 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:11:11,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:11:11,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 08:11:11,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-07 08:11:11,838 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:11,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:11:11,838 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-11-07 08:11:11,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 08:11:11,838 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-11-07 08:11:11,839 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-07 08:11:11,839 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 08:11:11,839 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-07 08:11:11,839 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-07 08:11:11,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-07 08:11:11,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:11:11,840 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:11:11,840 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:11:11,840 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:11:11,840 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-11-07 08:11:11,840 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-07 08:11:11,840 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-07 08:11:11,840 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-07 08:11:11,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.11 08:11:11 BoogieIcfgContainer [2021-11-07 08:11:11,848 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-07 08:11:11,849 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 08:11:11,849 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 08:11:11,849 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 08:11:11,850 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:11:04" (3/4) ... [2021-11-07 08:11:11,856 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 08:11:11,856 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 08:11:11,861 INFO L168 Benchmark]: Toolchain (without parser) took 8174.95 ms. Allocated memory was 104.9 MB in the beginning and 184.5 MB in the end (delta: 79.7 MB). Free memory was 71.3 MB in the beginning and 142.7 MB in the end (delta: -71.4 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. [2021-11-07 08:11:11,862 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 104.9 MB. Free memory is still 60.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:11:11,862 INFO L168 Benchmark]: CACSL2BoogieTranslator took 387.16 ms. Allocated memory is still 104.9 MB. Free memory was 71.1 MB in the beginning and 78.2 MB in the end (delta: -7.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 08:11:11,863 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.50 ms. Allocated memory is still 104.9 MB. Free memory was 77.8 MB in the beginning and 75.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:11:11,864 INFO L168 Benchmark]: Boogie Preprocessor took 65.90 ms. Allocated memory is still 104.9 MB. Free memory was 75.7 MB in the beginning and 74.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:11:11,864 INFO L168 Benchmark]: RCFGBuilder took 559.42 ms. Allocated memory is still 104.9 MB. Free memory was 74.0 MB in the beginning and 58.3 MB in the end (delta: 15.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-11-07 08:11:11,865 INFO L168 Benchmark]: BuchiAutomizer took 7042.47 ms. Allocated memory was 104.9 MB in the beginning and 184.5 MB in the end (delta: 79.7 MB). Free memory was 58.3 MB in the beginning and 143.7 MB in the end (delta: -85.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:11:11,865 INFO L168 Benchmark]: Witness Printer took 7.84 ms. Allocated memory is still 184.5 MB. Free memory was 143.7 MB in the beginning and 142.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:11:11,869 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 104.9 MB. Free memory is still 60.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 387.16 ms. Allocated memory is still 104.9 MB. Free memory was 71.1 MB in the beginning and 78.2 MB in the end (delta: -7.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 105.50 ms. Allocated memory is still 104.9 MB. Free memory was 77.8 MB in the beginning and 75.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 65.90 ms. Allocated memory is still 104.9 MB. Free memory was 75.7 MB in the beginning and 74.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 559.42 ms. Allocated memory is still 104.9 MB. Free memory was 74.0 MB in the beginning and 58.3 MB in the end (delta: 15.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 7042.47 ms. Allocated memory was 104.9 MB in the beginning and 184.5 MB in the end (delta: 79.7 MB). Free memory was 58.3 MB in the beginning and 143.7 MB in the end (delta: -85.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 7.84 ms. Allocated memory is still 184.5 MB. Free memory was 143.7 MB in the beginning and 142.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 13 terminating modules (6 trivial, 7 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 253 + -2 * e and consists of 4 locations. One deterministic module has affine ranking function 253 + -2 * e and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. One deterministic module has affine ranking function 253 + -2 * e and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. One deterministic module has affine ranking function 253 + -2 * e and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. 6 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.9s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 5.2s. Construction of modules took 0.2s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 9. Automata minimization 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 72 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 43 states and ocurred in iteration 5. Nontrivial modules had stage [7, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 527 SDtfs, 344 SDslu, 149 SDs, 0 SdLazy, 176 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT6 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp57 ukn100 mio100 lsp100 div575 bol100 ite100 ukn100 eq132 hnf44 smp92 dnf100 smp100 tf105 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 43ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-07 08:11:11,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:12,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2021-11-07 08:11:12,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90b6621d-f190-4159-9fa0-b5d5b4fe20bd/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